Download Print this page

Anritsu VectorStar MS4640A Series Maintenance Manual

Microwave vector network analyzer

Table of Contents

Advertisement

Quick Links

Download this manual

Maintenance Manual

®

VectorStar

MS4640A Series

Microwave Vector Network Analyzer

MS4647A, 10 MHz to 70 GHz, V Connectors

MS4645A, 10 MHz to 50 GHz, V Connectors

MS4644A, 10 MHz to 40 GHz, K Connectors

MS4642A, 10 MHz to 20 GHz, K Connectors

Anritsu Company

Part Number: 10410-00268

490 Jarvis Drive

Revision: D

Morgan Hill, CA 95037-2809

Printed: April 2015

USA

Copyright 2015 Anritsu Company

http://www.anritsu.com

Table of Contents

Advertisement

Chapters

Table of Contents

Troubleshooting

Need help?

Need help?

Do you have a question about the VectorStar MS4640A Series and is the answer not in the manual?

Questions and answers

Summary of Contents for Anritsu VectorStar MS4640A Series

Page 1 MS4645A, 10 MHz to 50 GHz, V Connectors MS4644A, 10 MHz to 40 GHz, K Connectors MS4642A, 10 MHz to 20 GHz, K Connectors Anritsu Company Part Number: 10410-00268 490 Jarvis Drive Revision: D Morgan Hill, CA 95037-2809 Printed: April 2015 Copyright 2015 Anritsu Company http://www.anritsu.com...
Page 3 Some or all of the following five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached to products that are not shown in the diagrams in this manual.
Page 4 For Safety Warning Always refer to the operation manual when working near locations at which the alert mark, shown on the left, is attached. If the operation, etc., is performed without heeding the advice in the operation manual, there is a risk of personal injury.
Page 5 This product is supplied with a rechargeable battery that could potentially leak hazardous compounds into the environment. These hazardous compounds present a risk of injury or loss due to exposure. Anritsu Company recommends removing the battery for long-term storage of the instrument and storing the battery in a leak-proof plastic container.
Page 6 Safety-4 PN: 10410-00268 Rev. D MS4640A MM...
Page 7: Table Of Contents
1-7 Anritsu Customer Service Centers ........
Page 8 Table of Contents (Continued) 2-4 Exchange Assembly Program........... . 2-1 2-5 Replaceable Subassemblies and Parts .
Page 9 2-32 Sorted by Anritsu Part Number........
Page 10 Table of Contents (Continued) 3-12 Maximum Port Power Output Test ..........3-19 Equipment Required .
Page 11 Table of Contents (Continued) 4-18 Troubleshooting Measurement Problems......... 4-34 VNA Measurement Quality .
Page 12 Table of Contents (Continued) 5-14 Through Line Length Determination Procedure ........5-50 Equipment Required .
Page 13 Table of Contents (Continued) 6-8 Main Chassis Assemblies............6-13 Motherboard 1 PCB Assembly .
Page 14 Table of Contents (Continued) 8-2 Replace Front Panel Test Ports ..........8-2 Parts and Applicability .
Page 15 Table of Contents (Continued) 9-11 Install the Phase 2 Carrier Board PCB – ND73874 – 3-72444-3 ..... . . 9-25 Procedure .
Page 16 Table of Contents (Continued) 11-13 RF Deck Bottom Side Port Group Modules ........11-16 Port Group Modules Introduction.
Page 17 Table of Contents (Continued) 12-8 Install A114 SQM – ND70099 – 60-327 ......... 12-15 Procedure .
Page 18 Table of Contents (Continued) 13-2 Chapter Organization ............13-4 Single Module Port Groups .
Page 19 Table of Contents (Continued) 13-18 Side-Attached Modules - Standard/All Options - Removing ......13-53 Use ..............13-53 Identification .
Page 20 Table of Contents (Continued) 13-28 Option 051 - Port 1 Source Modules - Installing ........13-89 Use .
Page 21 Table of Contents (Continued) 13-39 Option 062 - Port 2 Source Modules - Installing ....... . . 13-114 Identification .
Page 22 Table of Contents (Continued) 15-7 Replace the Low Band Source Attenuator ........15-18 Identification - Option 061 Low Band Attenuators - RF Deck Top Side.
Page 23 Table of Contents (Continued) 15-17 Install the SLODM onto the RF Deck ......... . 15-66 Prior Procedures .
Page 24 Table of Contents (Continued) Chapter 18 — Digital PCB Fan Assembly 18-1 Introduction ..............18-1 Digital PCB Fan Assembly Removal .
Page 25 Table of Contents (Continued) C-2 Full Disassembly Procedures........... . C-1 Disassembly into Main Assemblies .
Page 26 Table of Contents (Continued) Contents-20 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 27 List of Figures Chapter 1 — General Information Figure 1-1. VectorStar MS4647A VNA Front Panel – Equipped with Option 062....1-2 Figure 1-2. Typical VectorStar VNA Rear Panel – Equipped with Option 062 ....1-3 Chapter 2 —...
Page 28 List of Figures (Continued) Chapter 3 — Performance Verification Figure 3-1. Process for Creation and Use of a Verification Kit ......3-5 Figure 3-2.
Page 29 Chapter 6 — Theory of Operation Figure 6-1. VectorStar MS4640A Series VNA Simplified Block Diagram ..... . 6-2 Figure 6-2. Phase 1 MS4640A Series VNA Typical Internal Assemblies and Components..6-3 Figure 6-3.
Page 30 List of Figures (Continued) Figure 11-2. RF Deck Top Right Side Modules - A113, A115, A116, and A117....11-5 Figure 11-3. MS4640A - RF Deck Top Side Rear Attenuators - Option 061 ....11-8 Figure 11-4.
Page 31 Chapter 15 — RF Deck Top Side Modules Figure 15-1. RF Deck Top Right Side Modules – A113, A115, A116, and A117 ....15-3 Figure 15-2. A113 5-20 GHz Doubler Module – ND70080 – 64920 – Detail ....15-6 Figure 15-3.
Page 32 Appendix A — Front and Rear Panel Reference Figure A-1. Typical VectorStar MS4640A Series VNA Front Panel ......A-2 Figure A-2.
Page 33 List of Tables Chapter 1 —General Information Table 1-1. Recommended Test Equipment ..........1-8 Chapter 2 —Replaceable Parts Table 2-1.
Page 34 List of Tables (Continued) Table 11-4. Port Modules - Option 051 Loops - RF Deck Bottom Side ..... 11-36 Table 11-5. Port Modules - Option 061 Loops & Two Attenuators - RF Deck Bottom Side ..11-37 Table 11-6.
Page 35: Chapter 1 - General Information
Chapter 1 — General Information Scope of Manual This manual provides general service and preventive maintenance information for the Anritsu MS4640A models of Vector Network Analyzers. The information includes replaceable parts information, performance verification tests, adjustment procedures, troubleshooting, theory of operation and block diagrams, and assembly/sub-assembly removal and replacement.
Page 36: Vectorstar Ms4640A Vna Description
1-3 VectorStar MS4640A VNA Description General Information VectorStar MS4640A VNA Description The MS4640A Series Microwave Vector Network Analyzer (VNA) is an instrument system that contains a built-in source, test set, and analyzer. Test results are displayed real time on a front panel touch screen or also to a separate video monitor.
Page 37: Available Models
General Information 1-3 VectorStar MS4640A VNA Description Figure 1-2. Typical VectorStar VNA Rear Panel – Equipped with Option 062 Available Models The MS4640A Series VNA instrument is available in four models with different frequency range capabilities: • MS4642A - 10 MHz to 20 GHz - with two K (m) connector test ports •...
Page 38: Identification Number
VectorStar MS4640A Series VNA Configuration Guide and Technical Data Sheet – 11410-00432. Identification Number All Anritsu MS4640A instruments are assigned a six- or seven-digit ID number (Serial Number), such as “085203”. This number appears on a decal affixed to the rear panel.
Page 39: Documentation
The file is “linked” such that the viewer can choose a topic to view from the displayed “bookmark” list and “jump” to the manual page on which the topic resides. The text can also be word-searched. Updates to this and other manuals, if any, may also be downloaded from the “Literature” area of the Anritsu Internet site at: http://www.us.anritsu.com...
Page 40: Basic Maintenance
Hard Disk Drive Data Backup Anritsu recommends that you make a backup copy of your critical data stored on the VNA hard disk drive as often as possible. Anritsu reserves the right to reformat or replace the VNAs hard disk drive as part of the repair. In Note such incidence, all user data on the hard disk drive will be erased.
Page 41: System Test/Certification
The performance specifications for all MS4640A models are contained in the following data sheet available online at www.anritsu.com. • VectorStar MS4640A Series VNA Configuration Guide and Technical Data Sheet – 11410-00432 Anritsu Customer Service Centers For the latest service and sales information in your area, please visit http://www.anritsu.com/Contact.asp.
Page 42: Recommended Test Equipment
— “I” = Instrument Key Parameter Testing Codes for — “P” = System Performance Verification Typical Usage — “T” = Troubleshooting Frequency Counter Frequency: 10 MHz Anritsu Model MF2412B A, I Input Impedance: 50 Ohm Frequency Reference Frequency: 10 MHz Symmetricom Model A, I RubiSource T&M...
Page 43 Codes for — “P” = System Performance Verification Typical Usage — “T” = Troubleshooting Step Attenuator With traceable Characterization Data Anritsu Model SC7974 Step Attenuator Controller — Anritsu Model SC3796 Coaxial Cable Type: BNC (m) to BNC (m) A, I Impedance: 50 Ohm Length: 0.6 meter...
Page 44: 1-10 Recommended Tools And Supplies
• 6 mm / 7 mm Open End Wrench – Anritsu 01-505 or equivalent. Used to back the torque wrench above. • 8 mm (5/16”) Torque End Wrench set to 0.9 N · m (8 lbf · in) – Anritsu 01-201 or equivalent. For tightening male devices and used to torque the front panel loops, the rear panel loops, and the SMA, 3.5...
Page 45: Socket Wrenches And Sockets
Aven Model 20039 or equivalent. Cleaning Supplies • Approved Cleaner – Anritsu 783-1358 or equivalent. Approved cleaner for LCD display, front and rear panels, instrument model identity labels, and instrument external cover. • Approved Front/Rear Panel Wipes – Anritsu 783-557 or equivalent such as Kimberly-Clark Kimwipes Science Brand #280.
Page 46 1-11 Recommended T3545 RF Deck Fixture General Information 1-12 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 47: Chapter 2 - Replaceable Parts
VectorStar Technical Data Sheet This and many other documents are available on the Anritsu web site at www.anritsu.com. In the search field, enter “VectorStar” or “MS4640A” to find VectorStar VNA information.
Page 48: Replaceable Subassemblies And Parts
Most replacement parts are identified by their “ND” part number. For example, the RF Control PCB Assembly is ND70068. In some cases, there is no “ND” number and a multi-digit Anritsu part number is used. For example, the 70 GHz High Band Step Attenuator is part number 66050.
Page 49: Replacement Parts By Location, Ern, And Rpn
Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-1. Notes for All Replacement Part Cross-Reference Tables (2 of 2) Note Description Except as noted, options are applicable to all VNA Phases and all VNA models: • Any – Applicable to Standard No Options or any combination of options. •...
Page 50 2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (2 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers On No ND 3-60124-9 — MS4642A Model Identity Label Any Phase •...
Page 51 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (3 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers On ND73934 67861 Solid State Drive Assembly (SSD) Any Phase •...
Page 52: Figure 2-7. A10 Dsp Module Pcb Assembly - Nd70066 - 61933-3
2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (4 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND70065 65413-3 A8 GPIB Module PCB Assembly Any Phase •...
Page 53 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (5 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND70076 62080 A11 IF Band Module PCB Assembly Phase 1 •...
Page 54 2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (6 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND73194 73257 — Front Panel Assembly Phase 1 VNAs with •...
Page 55 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (7 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off No ND 65270 A105 Reference Coupler, 70 GHz Any Phase A107...
Page 56 2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (8 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND70095 67417-2 A109 Port 1 Level Detector, K Connector, 40 GHz Any Phase •...
Page 57 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (9 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND72127 67389-2 A110 Port 2 Level Detector, V Connector, 70 GHz Any Phase •...
Page 58 2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (10 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND73940 74277 A128 Diplexer/Bias Tee Module, Port 1, 40 GHz Any Phase •...
Page 59 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (11 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND70085 3-2000-1502 A124 Low Band Test Attenuator, Port 1 Any Phase •...
Page 60 2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (12 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND73203 67355-12 — Cable required when replacing the obsolete Phase 1 ND70081 A111 LO Module with the new ND73193 VNAs...
Page 61 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (13 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND70082 64180 A100 Sampler Module Any Phase A101 •...
Page 62 2-5 Replaceable Subassemblies and Parts Replaceable Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (14 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND70083 68848 A130 LO Coupler Module Phase 1 •...
Page 63 Replaceable Parts 2-5 Replaceable Subassemblies and Parts Table 2-2. Replacement Parts - Sorted by Location, RPN, and APN (15 of 15) Name and Description Phase Procedure Location Reference Figure Model Location Replacement Procedure Option Covers Off ND73933 71995 — Phase 2 Power Supply Module and Harness Phase 2 VNAs •...
Page 64: External Parts
2-6 External Parts Replaceable Parts External Parts 1. Model Identity Label – 3-60124-XX 5. Inner cover Mounting Screws, five (5) each. 2. Front Panel 6. Calibration Sticker – 3-48371 – Not provided as a replacement part. 3. Front Panel Mounting Screws, three (3) each side, six (6) total 7.
Page 65: Major Internal Assemblies
Replaceable Parts 2-7 Major Internal Assemblies Major Internal Assemblies The drawing in below shows the location of major components after the covers have been removed Figure 2-2 and the Front Panel partially detached. A Phase 1 VNA is shown with Phase 2 VNAs having components in similar locations as noted in the figure caption.
Page 66 2-7 Major Internal Assemblies Replaceable Parts Orientation Top Side Assemblies 1. Phase 1 Front Panel with two (2) attached cables 9. Power Supply Module • Phase 2 Front Panels have three (3) removable 10. Digital PCB Assemblies cables 11. Analog Module PCB Assemblies Front Panel Cables Rear Panel 2.
Page 67: Top Side Pcb Locations - Phase 1 Vnas
Replaceable Parts 2-8 Top Side PCB Locations – Phase 1 VNAs Top Side PCB Locations – Phase 1 VNAs The figure below shows the instrument chassis with the covers off and the locations of the Phase 1 Digital PCB Assemblies. Digital Fan ND70073 - 62095-1 Rear Panel...
Page 68 2-8 Top Side PCB Locations – Phase 1 VNAs Replaceable Parts Phase 1 Digital PCB Orientation Analog Section 1. Rear Panel 5. Analog Modules – The PCB-like modules are mounted horizontally in the right side analog PCB 2. Left Side – Left side of instrument when viewed from bay.
Page 69: Top Side Pcb Locations - Phase 2 Vnas
Replaceable Parts 2-9 Top Side PCB Locations – Phase 2 VNAs Top Side PCB Locations – Phase 2 VNAs The figure below shows the instrument chassis with the covers off and the locations of the Phase 2 Digital PCB Assemblies. Digital Fan Rear Panel Fan ND70073 - 62095-1...
Page 70 2-9 Top Side PCB Locations – Phase 2 VNAs Replaceable Parts 6. A10 Digital Signal Processor PCB Assembly – Phase 2 Digital PCB Orientation ND70066 – 61933-3 1. Rear Panel Analog PCB Section 2. Left Side – Left side of instrument when viewed from 7.
Page 71: 2-10 Digital Pcbs - Phase 1 Vnas
Replaceable Parts 2-10 Digital PCBs – Phase 1 VNAs 2-10 Digital PCBs – Phase 1 VNAs On the left side of the instrument in the digital PCB bay are the PCB assemblies that can be removed from the top of the unit. The installed PCBs vary depending on the instrument serial number. The following six (6) PCB assemblies comprise the Phase 1 Digital PCB set.
Page 72: Figure 2-5. A3 Single Board Computer And A4 Usb Controller Pcb Assemblies
2-10 Digital PCBs – Phase 1 VNAs Replaceable Parts USB A Back ND70061 - 3-59632 ND70061 - 3-2000-1525 ND70062 - 65412-4 A3 SBC PCB A4 USB PCB 1. A3 Single Board Computer PCB Assembly – 3. A4 USB Controller PCB Assembly – ND70062 – ND70061 –...
Page 73: Figure 2-6. A6 Cpci-Pmc Adapter, A7 Graphics Adapter, And A8 Gpib Module Pcbs
Replaceable Parts 2-10 Digital PCBs – Phase 1 VNAs Back XGA/VGA ND70063 - 3-2000-1485 ND70064 - 3-2000-1517 GPIB ND70065 - 65413-3 PCBs DIP Switches and Cables 1. A6 cPCI-PMC Adapter Card PCB Assembly (PAC) – 4. A7 Back – There are two (2) configuration DIP ND70063 –...
Page 74: Digital Pcb - A10 Dsp Module Pcb Assembly
2-11 Digital PCB – A10 DSP Module PCB Assembly Replaceable Parts 2-11 Digital PCB – A10 DSP Module PCB Assembly The A10 DSP PCB Assembly mounts in the right-side digital bay slot closest to the Motherboard 1 PCB Assembly. The A10 PCB is used in both Phase 1 and Phase 2 VNAs for all models with any options. The A10 PCB contains model configuration data which is unique to each instrument.
Page 75 Replaceable Parts 2-11 Digital PCB – A10 DSP Module PCB Assembly MS4640A Series VNA MM PN: 10410-00268 Rev. D 2-29...
Page 76: 2-12 Digital Pcbs - Phase 2 Vnas
2-12 Digital PCBs – Phase 2 VNAs Replaceable Parts 2-12 Digital PCBs – Phase 2 VNAs On the left side of the instrument in the digital PCB bay are the eight (8) PCB assemblies that can be removed from the top of the unit and comprise the Phase 2 Digital PCB set. The Phase 2 Digital PCB assemblies are: The Phase 1 A3 SBC, A6 Adapter Card, and A7 Graphics Adapter PCBs cannot be used Phase 2 VNAs and must be used with the Phase 1 MB2 PCB –...
Page 77 Replaceable Parts 2-12 Digital PCBs – Phase 2 VNAs ND70062 - 65412-4 ND73875 - 3-2000-1668 ND73874 - 3-72444-3 SODIMM NO ND - 3-2000-1671 Front GPIB ND70065 - 65413 Figure 2-8. Carrier Board PCB Assembly – ND73874 – 3-72444-3 - PCB Front Side (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 78 2-12 Digital PCBs – Phase 2 VNAs Replaceable Parts 1. Carrier Board PCB (CB PCB) Assembly – ND73874 8. GPIB PCB mounting screws, 2 each – 3-72444-3 9. Connectors for PMC-USB PCB on CB-PCB, 3 each 2. CB PCB Ejector Handles 10.
Page 79: Figure 2-9. Carrier Board Pcb Assembly - Nd73874 - 3-72444-3 - Pcb Back Side
Replaceable Parts 2-12 Digital PCBs – Phase 2 VNAs 1. Carrier Board PCB (CB-PCB) Assembly – ND73874 6. Heatsink mounting screws and standoffs, from back – 3-72444-3 of GPU to threaded holes in heatsink, 4 each 2. CB-PCB Ejector Handles 7.
Page 80: 2-13 Analog Module Pcbs
2-13 Analog Module PCBs Replaceable Parts 2-13 Analog Module PCBs This section describes the following analog module assemblies: • A11 IF Band Module – ND70076 – 62080 • A13 Source Module – ND70077 – 62082 or ND73202 – 62082-1 • Both parts are identical. •...
Page 81: A11 If Band Module - Nd70076 - 62080
Replaceable Parts 2-13 Analog Module PCBs A11 IF Band Module – ND70076 – 62080 The figure below shows the port and connector locations for the A11 module. A11 IF Band Module Connectors J13 – a1 IF In/Out, from Rear Panel a1 IF Connector J1 –...
Page 82: A13 Source Module - Nd70077 - 62082 Or Nd73202 - 62082-1
2-13 Analog Module PCBs Replaceable Parts A13 Source Module – ND70077 – 62082 or ND73202 – 62082-1 The figure below shows the port and connector locations for the A13 module. J11 – DDS Clock Out (Unused) A13 Source Module Connectors J12 –...
Page 83: A15 Low Band Receiver Module - Nd70075 - 62079
Replaceable Parts 2-13 Analog Module PCBs A15 Low Band Receiver Module – ND70075 – 62079 The figure below shows the port and connector locations for the A15 PCB. J7 – Low Band b2 In, from Port 2 Low Band Test Bridge A15 Low Band Receiver Module Connectors J11 –...
Page 84: 2-14 Front Panel Assembly And Connections - Phase 1 Vnas
2-14 Front Panel Assembly and Connections – Phase 1 VNAs Replaceable Parts 2-14 Front Panel Assembly and Connections – Phase 1 VNAs Front Panel Removal For servicing some RF Deck components, it is recommended or required to remove the Front Panel assembly. The Front Panel is a single assembly with no user-serviceable parts inside, connected to the main chassis by a ribbon cable and a PCB Flex Cable.
Page 85: Phase 1 - Front Panel Assembly - Nd70060 - 62078
Replaceable Parts 2-14 Front Panel Assembly and Connections – Phase 1 VNAs Phase 1 – Front Panel Assembly – ND70060 – 62078 SLODM ND70070 - 61923-3 Front Panel Assembly – ND70060 – 62078 – Not shown 6. Phillips-head captive screws on cable connector for clarity.
Page 86: Figure 2-15. Phase 1 - Motherboard 2 Pcb Assembly - Front Connectors Detail
2-14 Front Panel Assembly and Connections – Phase 1 VNAs Replaceable Parts POWER IN PWR CTRL ND70070 - 61923-3 POWER/SIGNAL SIGNAL 1. Front Panel Assembly – ND70060 – 62078 – 5. Motherboard 2 PCB Assembly – ND70069 – 61920-3 Removed for clarity. 6.
Page 87: Figure 2-16. Phase 1 - Motherboard 2 Pcb Assembly - Nd70070 - 61923-3 - Front
Replaceable Parts 2-14 Front Panel Assembly and Connections – Phase 1 VNAs Shown below in 2-16, the front of the Motherboard 2 PCB Assembly provides connectors for the Front Figure Panel, as well as signal routing, DC power distribution paths, and backplane connectors to the Digital Section PCBs and the Motherboard 1 PCB Assembly.
Page 88: 2-15 Front Panel And Connections - Phase 2 Vnas
2-15 Front Panel and Connections – Phase 2 VNAs Replaceable Parts 2-15 Front Panel and Connections – Phase 2 VNAs Phase 2 – Front Panel Assembly – ND73195 – 3-72015 1. VectorStar VNA Instrument Chassis with RF Deck 7. MB2 PCB P97 HDMI connector with flexible-head Front Panel and Connectors below.
Page 89: Motherboard 2 Pcb - Nd73878 - 3-72813-3 - Front Panel Connections
Replaceable Parts 2-15 Front Panel and Connections – Phase 2 VNAs Motherboard 2 PCB – ND73878 – 3-72813-3 – Front Panel Connections +12.0V +3.8V +12.0V +3.3V -12.0V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL HDMI PWR CTRL +3.3VD SENSE 1.
Page 90: 2-16 Rf Deck - Overview
2-16 RF Deck – Overview Replaceable Parts 2-16 RF Deck – Overview The instrument RF Deck has different configurations depending on the instrument model and the installed options. Each configuration changes the installed modules, connectors, and cables. The combinations are: •...
Page 91: 2-17 Rf Deck - Bottom Side - A18 Pcb Modules
Replaceable Parts 2-17 RF Deck – Bottom Side – A18 PCB Modules 2-17 RF Deck – Bottom Side – A18 PCB Modules These modules are mounted on or through the bottom side A18 PCB assembly and vary depending instrument model number and equipped options. Each model variant of the A18 PCB configuration is shown below in 2-20, and Figure 2-19,...
Page 92: Ms4644A A18 Rf Control Pcb Configuration
2-17 RF Deck – Bottom Side – A18 PCB Modules Replaceable Parts MS4644A A18 RF Control PCB Configuration A112 A108 RF Deck A18 Modules and PCB – MS4644A 40 GHz 1. A18 RF Control PCB Assembly – ND70068 – 61929-3 The A18 modules and PCB are replaceable while the RF 2.
Page 93: Ms4645A / Ms4647A A18 Rf Control Pcb Configuration
Replaceable Parts 2-17 RF Deck – Bottom Side – A18 PCB Modules MS4645A / MS4647A A18 RF Control PCB Configuration A112 A114 A108 MS4645A 50 GHz and MS4647A 70 GHz VNA – RF 1. A18 – A18 RF Control PCB Assembly (A18 PCB) – Deck –...
Page 94: Ms4647A With Option 080/081 A18 Rf Control Pcb Configuration
2-17 RF Deck – Bottom Side – A18 PCB Modules Replaceable Parts MS4647A with Option 080/081 A18 RF Control PCB Configuration The RF Deck Bottom Side A18 RF Control PCB configuration for the MS4647A with Option 080/081 is the same as MS4647A configurations for Standard No Options, Option 051, Option 061, and Option 062 with the addition of the A133 20 - 40 GHz Coupler Module located between the A112 Switched Doubler Module and the A108 V Integrated High Band Transfer Switch.
Page 95: Rf Deck - Bottom Side - Port Modules - Ms4647A 70 Ghz - Option 062
Replaceable Parts 2-18 RF Deck – Bottom Side – Port Modules – MS4647A 70 GHz – Option 062 2-18 RF Deck – Bottom Side – Port Modules – MS4647A 70 GHz – Option The RF Deck variants and their components are described in greater detail in Chapter 11, “RF Deck Module Overview”.
Page 96 2-18 RF Deck – Bottom Side – Port Modules – MS4647A 70 GHz – Option 062 Replaceable Parts Test Ports (from left to right) Port 2 Source • P2 b2 – Port 2 Test Receiver b2 – High Band Step •...
Page 97: 2-19 Rf Deck - Top Side - Right Side Modules
Replaceable Parts 2-19 RF Deck – Top Side – Right Side Modules 2-19 RF Deck – Top Side – Right Side Modules The RF Deck Top Side modules vary depending on whether Standard No Options, Option 051, Option 061, or Option 062 is equipped.
Page 98: 2-20 Top Side Modules - Right Side
2-20 Top Side Modules – Right Side Replaceable Parts 2-20 Top Side Modules – Right Side A113 A115 A116 A117 Figure 2-24. RF Deck Top Right Side Modules – A113, A115, A116, and A117 (1 of 2) 2-52 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 99 Replaceable Parts 2-20 Top Side Modules – Right Side RF Deck A116 and A117 Low Band Bridge Modules • A116 – Low Band Bridge Module – ND70079 – 64016 1. RF Deck Top Side. The Front Panel and the RF Deck •...
Page 100: 2-21 Rf Deck - Top Side - Attenuator Modules
2-21 RF Deck – Top Side – Attenuator Modules Replaceable Parts 2-21 RF Deck – Top Side – Attenuator Modules RF Deck Top Side Option 061 Low Band Attenuators As shown in below, only the A125 and A127 attenuators are installed on instruments with Option Figure 2-25 061.
Page 101 Replaceable Parts 2-21 RF Deck – Top Side – Attenuator Modules Low Band Attenuators SLODM Assembly • A125 – Low Band Port 1 Source (P1 Src) Attenuator – The Sampler/LO Distribution Module (SLODM) ND70084 – 3-2000-1502 Assembly consists of the following components: •...
Page 102: Rf Deck Top Side Modules - Option 062 Low Band Attenuators
2-21 RF Deck – Top Side – Attenuator Modules Replaceable Parts RF Deck Top Side Modules – Option 062 Low Band Attenuators As shown in below, on instruments equipped with Option 062, all four attenuators are installed. Figure 2-26 A125 A124 A113 A126...
Page 103: 2-22 Rf Deck - Top Side - Sampler/Lo Distribution Module Assembly
Replaceable Parts 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly The figures below show the five (5) Sampler/LO Distribution Module (SLODM) Assembly variants and their components. The SLODM Assemblies vary depending on the instrument S/N, model, phase, and equipped options.
Page 104 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly Replaceable Parts SLODM Assembly – 62084 Revision B A130 LO Coupler Module Connectors • J1 – Top For VNAs with S/N 1051172 and below, except S/N • J2 – Bottom 1034144.
Page 105: Slodm Assembly - 62084 B - Exploded View
Replaceable Parts 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly SLODM Assembly – 62084 B – Exploded View All SLODM Assembly variants are identical mechanically. Use the figure below as a guide to a SLODM disassembly and reassembly. A130 A100 A101...
Page 106 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly Replaceable Parts SLODM Assembly – 62084 Revision B A130 LO Coupler Module Connectors • J1 – Top For VNAs with S/N 1051172 and below, except S/N • J2 – Bottom 1034144.
Page 107: Slodm Assembly - 62084 C - Components
Replaceable Parts 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly SLODM Assembly – 62084 C – Components A130 A111 A130 Front A111 A130 Bottom A100 A101 A102 A100 A100 A103 A101 A101 A100 A102 A102 A101 A103 A103 A102 Rear...
Page 108 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly Replaceable Parts SLODM Assembly – 62084 Revision C A130 LO Coupler Module Connectors • J1 – Top For VNAs with S/N 1034144, S/N 1051173 and above to • J2 – Bottom S/N 1120219.
Page 109: Slodm Assembly - 73231 A - Components
Replaceable Parts 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly SLODM Assembly – 73231 A – Components A130 A131 A131 Front A132 A111 A132 A130 Front A111 Front A111 A130 A111 A111 A111 A131 A130 A132 Bottom A100 A101 A102...
Page 110 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly Replaceable Parts SLODM Assembly – 73231 Revision A A130 LO Coupler Module Connectors • J1 – Top For MS4647A VNAs equipped with Option 080/081 and • J2 – Bottom S/N 1120219 and lower.
Page 111: Slodm Assembly - 62084 D - Components
Replaceable Parts 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly SLODM Assembly – 62084 D – Components A111 A111 A100 A101 A102 A100 A103 A101 A102 A100 A103 A101 A102 A100 A103 A101 A102 A103 Figure 2-31. SLODM Assembly – 62084 D – Components (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 112 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly Replaceable Parts SLODM Assembly – 62084 Revision D A111 LO Distribution Module Assembly For VNAs with S/N 1120220 and higher, the 62084 D The following connectors are located on the A111 LO SLODM assembly consists of the following five (5) Distribution Module Assembly –...
Page 113: Slodm Assembly - 73231 B - Components
Replaceable Parts 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly SLODM Assembly – 73231 B – Components A131 A132 A111 A131 A132 Front A131 A131 A132 A132 Bottom A100 A101 A102 A100 A103 A101 A102 A100 A103 A101 Rear A102...
Page 114 2-22 RF Deck – Top Side – Sampler/LO Distribution Module Assembly Replaceable Parts SLODM Assembly – 73231 Revision B A131-A132 LO Coupler Module Connectors • J1 – Top For MS4647A VNAs equipped with Option 080/081 and • J2 – Bottom S/N 1120220 and higher.
Page 115: 2-23 Rear Panel
Replaceable Parts 2-23 Rear Panel 2-23 Rear Panel Rear Panel Assemblies The following Rear Panel components can be removed without removing the Rear Panel: • SATA Hard Disk Drive Assembly (HDD) – ND70071 – 62091 • Solid State Drive Assembly (SSD) – ND73934 – 67861 •...
Page 116: Rear Panel Overview
2-23 Rear Panel Replaceable Parts Rear Panel Overview The Rear Panel and its related components are shown below in Figure 2-33, “Rear Panel Assembly - In Chassis Covers Off” on page 2-70. Front Panel Right Side Analog PCBs Power Supply Digital PCBs Left Side Rear Panel...
Page 117 Replaceable Parts 2-23 Rear Panel Orientation A17 Rear Panel PCB Assembly Connectors The instrument chassis viewed from the Rear Panel with 4. Serial Connector port with two (2) 4×40 × 0.187 M-F the covers off. connector mounting studs. Rear Panel 5.
Page 118: A17 Rear Panel Pcb Assembly
2-23 Rear Panel Replaceable Parts A17 Rear Panel PCB Assembly The connections to the A17 Rear Panel PCB Assembly are shown in below. The left chassis side Figure 2-34 plate has been removed for clarity., Rear Panel Motherboard 2 PCB Left Side Figure 2-34.
Page 119 Replaceable Parts 2-23 Rear Panel Orientation A17 PCB Cable Connections The instrument is viewed from the left side with the side 3. A17 PCB P1 connector – For ribbon cable to MB2 plate removed for clarity. The rear panel is to the left. PCB connector P71.
Page 120: Rear Panel Inside Components
2-23 Rear Panel Replaceable Parts Rear Panel Inside Components The figure below shows the internal components attached to the Rear Panel. Figure 2-35. Rear Panel – Inside Connections and Assemblies (1 of 2) 2-74 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 121 Replaceable Parts 2-23 Rear Panel A17 PCB External Trigger 1. A17 Rear Panel PCB Assembly – ND70067 – 9. A17 PCB P11 MCX Connector – Connects to then 61924-3 External Trigger BNC 2. Rear Panel Chassis Plate 10. External Trigger BNC Connector A17 PCB Cables Rear Panel Fan The A17 PCB MCX cables connect to the four trigger...
Page 122: 2-24 Power Supply Modules
2-24 Power Supply Modules Replaceable Parts 2-24 Power Supply Modules Phase 1 – Power Supply Module and Cable Harness – ND70072 – 62088 The Phase 1 Power Supply Module Assembly and its three major cable harnesses is shown below in Figure 2-36 mounted in the Digital PCB Section.
Page 123 Replaceable Parts 2-24 Power Supply Modules 1. Power Supply Mounting Chassis 7. Four (4) flat head Phillips M3 × 8 mm screws holding the Power Supply Module into its mounting bracket. 2. AC Input Module 8. Two (2) flat head Phillips M4 × 8 mm screws (in the 3.
Page 124: Phase 2 - Power Supply Module And Cable Harnesses - Nd73933 - 71995
2-24 Power Supply Modules Replaceable Parts Phase 2 – Power Supply Module and Cable Harnesses – ND73933 – 71995 The Phase 2 Power Supply Module Assembly and its four major cable harnesses is shown below in Figure 2-37 mounted in the Digital PCB Section. The cable harnesses go to connectors on the Phase 2 Motherboard 2 PCB Assembly –...
Page 125 Replaceable Parts 2-24 Power Supply Modules 1. Power Supply Mounting Chassis 7. Four (4) flat head Phillips M3 × 8 mm screws holding the Power Supply Module into its mounting bracket. 2. AC Input Module 8. Two (2) flat head Phillips M4 × 8 mm screws (in the 3.
Page 126: 2-25 Phase 1 And Phase 2 Motherboard Pcb Assemblies
2-25 Phase 1 and Phase 2 Motherboard PCB Assemblies Replaceable Parts 2-25 Phase 1 and Phase 2 Motherboard PCB Assemblies Front Right ND70069 - 61920-3 Analog PCBs Digital PCBs Left Phase 2 ND73878 - 3-72813-3 Rear Phase 1 ND70070 - 61923-3 Figure 2-38.
Page 127 Replaceable Parts 2-25 Phase 1 and Phase 2 Motherboard PCB Assemblies Orientation Phase 1 MB2 PCB Viewing the instrument chassis from the Rear Panel. 5. Mounted horizontally below the Digital PCB Bay and just above the RF Deck chassis. Removals 6.
Page 128: Phase 1 - Mb2 Pcb Assembly - Nd70070 - 61923-3
2-26 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 Replaceable Parts 2-26 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 The Phase 1 MB2 is only compatible with the Phase 1 digital section PCBs and power supply module listed below.
Page 129: Figure 2-39. Phase 1 Motherboard 2 Pcb Assembly - Nd70070 - 61923-3 - Connectors
Replaceable Parts 2-26 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 below, the MB2 connector locations are shown. In 2-85, a detailed view of Figure 2-39 Figure 2-40 on page the MB2 front connectors is shown. ND70070 - 61923-3 Phase 1 Figure 2-39.
Page 130 2-26 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 Replaceable Parts Power Supply Connectors A3 Single Board Computer PCB Edge Connectors P62 – +3.3 VDC Sense Cable P93 – Power Control Cable P94 – Main Cable Harness from Power Supply Front Panel Connectors P61 –...
Page 131: Figure 2-40. Phase 1 Motherboard 2 Pcb Assembly - Nd70070 - 61923-3 - Front
Replaceable Parts 2-26 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 +12.0V +12.0V +3.3V +3.8V -12.0V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL FRONT PANEL PWR CTRL 1. P61 – Ribbon Cable Connector to Front Panel P94 –...
Page 132: Phase 2 - Mb2 Pcb Assembly - Nd73878 - 3-72813-3
2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 Replaceable Parts 2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 The Phase 2 MB2 is only compatible with the Phase 2 digital section PCBs and power supply module listed below.
Page 133: Figure 2-41. Phase 2 Motherboard 2 Pcb Assembly - Nd73878 - 3-72813-3 - Connectors
Replaceable Parts 2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 below, the MB2 connector locations are shown. In 2-43, a detailed view of Figure 2-41 Figure 2-18 on page the MB2 front connectors is shown. ND73878 - 3-72813-3 Phase 2 Figure 2-41.
Page 134 2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 Replaceable Parts Power Supply Connectors Carrier Board PCB Edge Connectors P94 – Main Cable Harness from Power Supply P93 – Power Control Cable P62 – +3.3 VDC Sense Cable Front Panel Connectors P61 –...
Page 135: Figure 2-42. Phase 2 Motherboard 2 Pcb Assembly - Nd73878 - 3-72813-3 - Front
Replaceable Parts 2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 +12.0V +3.8V -12.0V +12.0V +3.3V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL HDMI +3.3VD SENSE PWR CTRL 1. P61 – Ribbon Cable Connector to Front Panel P94 –...
Page 136: Motherboard 1 Pcb Assembly - Nd70069 - 61920-3
2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 Replaceable Parts Motherboard 1 PCB Assembly – ND70069 – 61920-3 Functionally, the Motherboard 1 PCB Assembly (MB1 PCB) provides signal routing and DC power distribution paths for the Analog Section PCB assemblies: •...
Page 137 Replaceable Parts 2-27 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 Orientation PCBs 1. Front Panel – Not shown. 5. Digital PCBs – PCBs removed. 2. Left Side – Left chassis plate not shown. 6. Analog PCBs – PCBs removed. 3.
Page 138: Digital Fan Assembly - Nd70073 - 62095-1
2-28 Digital Fan Assembly – ND70073 – 62095-1 Replaceable Parts 2-28 Digital Fan Assembly – ND70073 – 62095-1 Front Panel Right Side Analog PCBs Power Supply Digital PCBs Left Side Rear Panel Figure 2-44. Digital PCB Fan Assembly – Major Component Location – Rear View (1 of 2) 2-92 PN: 10410-00268 Rev.
Page 139 Replaceable Parts 2-28 Digital Fan Assembly – ND70073 – 62095-1 Orientation A17 Rear Panel PCB Assembly Connectors The instrument chassis viewed from the Rear Panel with 4. Serial Connector port with two (2) 4×40 × 0.187 M-F the covers off. connector mounting studs.
Page 140: 2-29 Replacement Part Cross References
2-29 Replacement Part Cross References Replaceable Parts 2-29 Replacement Part Cross References These tables below provide various cross references to the replacement assemblies and components. • Table 2-3, “Replacement Parts - Sorted by ERN, Name, and RPN” on page 2-95. •...
Page 141: 2-30 Sorted By Engineering Reference Number And Name
Replaceable Parts 2-30 Sorted by Engineering Reference Number and Name 2-30 Sorted by Engineering Reference Number and Name above for all notes. The table Table 2-1, “Notes for All Replacement Part Cross-Reference Tables” on page 2-2 below sorts the replacement parts by their engineering reference “A” numbers, then name, and replacement part number.
Page 142 2-30 Sorted by Engineering Reference Number and Name Replaceable Parts Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (2 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option — Front Panel Assembly ND73194 73257 Covers Off...
Page 143 Replaceable Parts 2-30 Sorted by Engineering Reference Number and Name Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (3 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option — Phase 2 Power Supply Module and Harness ND73933 71995 Covers Off...
Page 144 2-30 Sorted by Engineering Reference Number and Name Replaceable Parts Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (4 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option A8 GPIB Module PCB Assembly ND70065 65413-3 Covers Off...
Page 145 Replaceable Parts 2-30 Sorted by Engineering Reference Number and Name Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (5 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option A105 Reference Coupler, 40 GHz No ND 66487 Covers Off...
Page 146 2-30 Sorted by Engineering Reference Number and Name Replaceable Parts Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (6 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option A109 Port 1 Level Detector, K Connector, 40 GHz ND70095 67417-2 Covers Off...
Page 147 Replaceable Parts 2-30 Sorted by Engineering Reference Number and Name Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (7 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option A111 LO Distribution Module ND70081 66270 Covers Off...
Page 148 2-30 Sorted by Engineering Reference Number and Name Replaceable Parts Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (8 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option A120 High Band Step Attenuator, Test, 40 GHz No ND 68570 Covers Off...
Page 149 Replaceable Parts 2-30 Sorted by Engineering Reference Number and Name Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (9 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option A129 Diplexer/Bias Tee Module, Port 2, 40 GHz ND70089 66465 Covers Off...
Page 150 2-30 Sorted by Engineering Reference Number and Name Replaceable Parts Table 2-3. Replacement Parts - Sorted by ERN, Name, and RPN (10 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option Motherboard 1 (MB1) PCB Assembly ND70069 61920-3 Covers Off...
Page 151: 2-31 Sorted By Replacement Part Number
The table Table 2-1, “Notes for All Replacement Part Cross-Reference Tables” on page 2-2 below sorts the replacement parts by their replacement part number and Anritsu part number. Table 2-4. Replacement Parts - Sorted by RPN and APN (1 of 10)
Page 152 2-31 Sorted by Replacement Part Number Replaceable Parts Table 2-4. Replacement Parts - Sorted by RPN and APN (2 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option ND70069 61920-3 Motherboard 1 (MB1) PCB Assembly Covers Off Any Phase Internal Part...
Page 153 Replaceable Parts 2-31 Sorted by Replacement Part Number Table 2-4. Replacement Parts - Sorted by RPN and APN (3 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option ND70080 64920 A113 5-20 GHz Doubler Module Covers Off Any Phase RF Deck Out...
Page 154 2-31 Sorted by Replacement Part Number Replaceable Parts Table 2-4. Replacement Parts - Sorted by RPN and APN (4 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option ND70090 64911 A128 Diplexer/Bias Tee Module, Port 1, 70 GHz Covers Off Any Phase RF Deck In...
Page 155 Replaceable Parts 2-31 Sorted by Replacement Part Number Table 2-4. Replacement Parts - Sorted by RPN and APN (5 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option ND70095 67417-2 A109 Port 1 Level Detector, K Connector, 40 GHz Covers Off Any Phase RF Deck In...
Page 156 2-31 Sorted by Replacement Part Number Replaceable Parts Table 2-4. Replacement Parts - Sorted by RPN and APN (6 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option ND72127 67389-2 A110 Port 2 Level Detector, V Connector, 70 GHz Covers Off Any Phase RF Deck In...
Page 157 Replaceable Parts 2-31 Sorted by Replacement Part Number Table 2-4. Replacement Parts - Sorted by RPN and APN (7 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option ND73875 3-2000-1668 Single Board Computer (SBC PCB) Covers Off Phase 2 VNAs...
Page 158 2-31 Sorted by Replacement Part Number Replaceable Parts Table 2-4. Replacement Parts - Sorted by RPN and APN (8 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option No ND 3-60124-10 — MS4644A Model Identity Label Covers On Any Phase External Part...
Page 159 Replaceable Parts 2-31 Sorted by Replacement Part Number Table 2-4. Replacement Parts - Sorted by RPN and APN (9 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option No ND 65270 A105 Reference Coupler, 70 GHz Covers Off Any Phase A107...
Page 160 2-31 Sorted by Replacement Part Number Replaceable Parts Table 2-4. Replacement Parts - Sorted by RPN and APN (10 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option No ND 34YK50C — Test Port K Connector Covers On Any Phase External Part...
Page 161: 2-32 Sorted By Anritsu Part Number
The table Table 2-1, “Notes for All Replacement Part Cross-Reference Tables” on page 2-2 below sorts the replacement parts by their replacement part number and Anritsu part number. Table 2-5. Replacement Parts - Sorted by APN (1 of 10)
Page 162 2-32 Sorted by Anritsu Part Number Replaceable Parts Table 2-5. Replacement Parts - Sorted by APN (2 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 3-2000-1661 ND73876 Graphics Processor Unit (GPU PCB) ATI...
Page 163 Replaceable Parts 2-32 Sorted by Anritsu Part Number Table 2-5. Replacement Parts - Sorted by APN (3 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 61923-3 ND70070 Phase 1 Motherboard 2 (MB2) PCB...
Page 164 2-32 Sorted by Anritsu Part Number Replaceable Parts Table 2-5. Replacement Parts - Sorted by APN (4 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 62091 ND70071 Hard Disk Assembly Covers On Any Phase...
Page 165 Replaceable Parts 2-32 Sorted by Anritsu Part Number Table 2-5. Replacement Parts - Sorted by APN (5 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 64180 ND70082 A100 Sampler Module Covers Off Any Phase...
Page 166 2-32 Sorted by Anritsu Part Number Replaceable Parts Table 2-5. Replacement Parts - Sorted by APN (6 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 66221 ND70092 A108 High Band Transfer Switch (HBTS), 40 GHz...
Page 167 Replaceable Parts 2-32 Sorted by Anritsu Part Number Table 2-5. Replacement Parts - Sorted by APN (7 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 67357-6 No ND — Front Panel Loop Cable, K connector...
Page 168 2-32 Sorted by Anritsu Part Number Replaceable Parts Table 2-5. Replacement Parts - Sorted by APN (8 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 67417-2 ND70095 A109 Port 1 Level Detector, K Connector, 40 GHz...
Page 169 Replaceable Parts 2-32 Sorted by Anritsu Part Number Table 2-5. Replacement Parts - Sorted by APN (9 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 72440 ND73193 A111 LO Distribution Module Covers Off...
Page 170 2-32 Sorted by Anritsu Part Number Replaceable Parts Table 2-5. Replacement Parts - Sorted by APN (10 of 10) Name and Description Phase Procedure Location Reference Figure Model Replacement Procedure Location Option 34YK50C No ND — Test Port K Connector...
Page 171: Chapter 3 - Performance Verification
While there are many ways of verifying VNA performance, sometimes simpler procedures are desired. The use of verification kit, available from Anritsu, is a simpler method of verifying the measurement capabilities of the instrument by analyzing the measurement of artifacts that are traceable to national standards laboratories.
Page 172: Third Tier Of Uncertainty - Random Measurement Error
3-3 Electrostatic Discharge Prevention Performance Verification Third Tier of Uncertainty - Random Measurement Error The third tier of uncertainty is random measurement error that in replicate measurements varies in an unpredictable manner. The examples are connector repeatability, cable stability, and etc. Random measurement error equals measurement error minus systematic measurement error.
Page 173: Calibration And Measurement Conditions
The procedures are automated by using the MS4640A System Verification Software – 3-2300-527, in conjunction with the appropriate Anritsu Calibration and Verification Kits listed in the table below.
Page 174: Verification Result Determination
(characterization) data for those devices that was obtained using the Factory Standard MS4640A Vector Network Analyzer (at Anritsu). The Factory Standard MS4640A system is traceable to NIST through the impedance Standards of the Anritsu Calibration laboratory. These standards are traceable to NIST through precision mechanical measurements, NIST-approved microwave theory impedance derivation methods, and electrical impedance comparison measurements.
Page 175: Figure 3-1. Process For Creation And Use Of A Verification Kit
• The pin depths of all connectors and the proper torquing of connections. These same factors also affect the VNA measurement quality. Consult the reference manual supplied with Anritsu Calibration Kits and Verification Kits for proper use, care, and maintenance of the devices contained in these kits.
Page 176: System Verification Procedure
Software has been installed to an External Personal Computer with National Instruments GPIB interface running Microsoft Windows operating system. The 3-2300-527 System Verification Software for VectorStar MS4640A Series VNAs User Note Guide – 10410-00270 explains in detail the PC requirements and procedures to be used for the operation of the verification software on the Personal Computer.
Page 177 Performance Verification 3-7 System Verification Procedure 9. If the verification fails, check the connectors of the VNA test ports, calibration kit devices, the impedance transfer standards, and test port cables for damage, cleanliness, and proper connection and torquing. Also check the phase stability of the test port cables. These are the most common causes for verification failures.
Page 178: Instrument Key Parameter Performance Tests
3-8 Instrument Key Parameter Performance Tests Performance Verification Instrument Key Parameter Performance Tests The Instrument Key Parameter Performance tests verify the key performance parameters of the MS4640A Series Vector Network Analyzers. Unwarranted Performance Parameters Unwarranted performance parameters are not verified by the instrument performance tests as these parameters are not covered by product warranty.
Page 179: Automated Performance Tests
Performance Verification 3-9 Automated Performance Tests Automated Performance Tests The Automated Instrument Key Performance tests consist of the following: • Maximum Port Power Output Test • Port Power Accuracy Test • Frequency Accuracy Test • High Level Noise Test • Noise Floor Test •...
Page 180: Equipment Required For Automated Tests
Anritsu Model 33VFVF50C Adapter Type: N (m) to V (m) Pasternack Model PE9718 Calibration Kit Connector Type: K Anritsu Model 3652A or 3652A-1 Calibration Kit Connector Type: V Anritsu Model 3654D or 3654D-1 RF Cable Frequency: DC to 40 GHz...
Page 181: 3-10 Manual Performance - Log Magnitude Dynamic Accuracy Test
Required Equipment for Log Magnitude Dynamic Accuracy Test Recommended Manufacturer and Instrument Critical Specification Model Adapter Type: V (f) to K (f) Anritsu Model 34VFKF50 Required only for MS4645A and Quantity: 2 MS4647A VNAs Calibration Kit Connector Type: K Anritsu Model 3652A-1...
Page 182: Figure 3-2. Test Setup For Ms4642A And Ms4644A Vnas
3-10 Manual Performance – Log Magnitude Dynamic Accuracy Test Performance Verification 1. Anritsu VectorStar MS4642A or MS4644A VNA 4. Anritsu 33KKF50B Adapter from 3652A Calibration 2. Anritsu 33KFKF50 Adapter from 3652A Calibration 5. USB Memory Device from 3652A Calibration Kit 3.
Page 183: Figure 3-3. Test Setup For Ms4645A And Ms4647A Vnas
Performance Verification 3-10 Manual Performance – Log Magnitude Dynamic Accuracy Test 4. Anritsu 33KK50B Adapter from 3652A Calibration Kit MS4645A / MS4647A Test Setup 5. USB Memory Device from 3652A Calibration Kit 1. Anritsu VectorStar MS4645A or MS4647A VNA 6. Insert calibration standards here 2.
Page 184 3-10 Manual Performance – Log Magnitude Dynamic Accuracy Test Performance Verification d. Select Cal Kit on the dialog box. e. Click on the Browse… button. Browse to the Removable Disk (E:). Select the .ccf file and then click on the Open button to load the data. 6.
Page 185 Performance Verification 3-10 Manual Performance – Log Magnitude Dynamic Accuracy Test v. Select Thru/Recip and then Thru 1-2 to start the thru measurement. A check mark will appear on the Thru 1-2 button when the measurement is complete. w. Click on the Back icon on the bottom of the Right Side Menu to return to the previous menu. x.
Page 186 3-10 Manual Performance – Log Magnitude Dynamic Accuracy Test Performance Verification 20. Toggle the third switch from the right to 40 dB position to set the step attenuator to 40 dB attenuation. 21. Record the M1 value on the display to 40 dB row on Table D-1, “Measured S21 Values and Calculated Step Attenuator Attenuation Values”...
Page 187: Analysis Of The Measurement
Performance Verification 3-10 Manual Performance – Log Magnitude Dynamic Accuracy Test Analysis of the Measurement 37. Open the characterization data file (using a text editor program such as Windows™ Notepad) on the Characterization Disk of the step attenuator on a personal computer and copy the eight characterization values to Column B in Table D-2, “Attenuation Calculated Upper Limits, Mean Values, Lower Limits, and Pass/Fail”...
Page 188: Automated Performance Test Descriptions
3-11 Automated Performance Test Descriptions Performance Verification 3-11 Automated Performance Test Descriptions This section provides a brief description of each automated performance test. These automated performance tests are subject to change so the test descriptions provided are for Note reference only. Refer to the latest release of the MS4640A Instrument Test Software for the latest list of tests and their descriptions.
Page 189: 3-12 Maximum Port Power Output Test
Performance Verification 3-12 Maximum Port Power Output Test 3-12 Maximum Port Power Output Test This test verifies that the VNA ports are capable of outputting the maximum rated power. Measurements are made with a power sensor connected to Port 1 and then Port 2. The MS4640A VNA is set to a CW frequency and the port power is stepped above the specified Maximum Rated Port power for each frequency.
Page 190: 3-13 Port Power Accuracy Test
3-13 Port Power Accuracy Test Performance Verification 3-13 Port Power Accuracy Test This test verifies that the port power level accuracy at default port power. Power accuracy is determined with an external power meter. Accuracy is evaluated at default power across frequency.
Page 191: 3-14 Frequency Accuracy Test
Performance Verification 3-14 Frequency Accuracy Test 3-14 Frequency Accuracy Test This test verifies the frequency accuracy of the source in the MS4640A. Frequency accuracy is determined with a Frequency Counter with its external reference linked to a high precision 10 MHz Timebase. Equipment Required •...
Page 192: 3-15 High Level Noise Test
3-15 High Level Noise Test Performance Verification 3-15 High Level Noise Test This test verifies that the high level noise (trace noise) performance of MS4640A meets specifications. Note Skip this test if the VectorStar VNA is equipped with Option 051, 061, or 062 installed. This is a measure of the scatter of data when measuring a high level signal (full reflect or transmission through a short transmission line).
Page 193 Performance Verification 3-15 High Level Noise Test If the Test Fails 9. If the test fails, do each of the following until the test passes: a. Repeat the High Level Noise Test. b. Replace the thru line and repeat the entire High Level Noise Test c.
Page 194: 3-16 Noise Floor Test
3-16 Noise Floor Test Performance Verification 3-16 Noise Floor Test The test verifies the noise floor performance of the VNA receivers at Port 1 and Port 2. This is a measure in absolute power (dBm) of the noise floor of the system referenced to the test port. This is done by measuring S21 and S12 with a short thru line connected and the port power set to –10 dBm.
Page 195: Equipment Required
Performance Verification 3-17 Raw Source Match and Raw Directivity Test The measurement data for Raw Source Match and Directivity is gathered by the extraction of error correction terms from the Reflection Only Calibration done at the port being measured. Equipment Required •...
Page 196: Table 3-4. Test Frequency List For Maximum Rated Power Test And Level Accuracy Test
3-17 Raw Source Match and Raw Directivity Test Performance Verification Table 3-4. Test Frequency List for Maximum Rated Power Test and Level Accuracy Test Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) 0.07 18000 37000 56000 19000 38000 57000 1000 20000 39000 58000...
Page 197: Chapter 4 - Troubleshooting
Chapter 4 — Troubleshooting Introduction to Troubleshooting This chapter provides information about troubleshooting aids, tests and techniques for identifying system failures. A good understanding of the system and sub-assembly operation is an important aid to troubleshooting instrument failures. Refer to the descriptions of system and sub-assembly operation, and block diagrams located in Chapter 6, “Theory of Operation”.
Page 198: Test Equipment
4-4 Test Equipment Troubleshooting Test Equipment The recommended test equipment for troubleshooting is listed in Table 1-1, “Recommended Test Equipment” on page 1-8, in Chapter Troubleshooting Aids and Test Procedures This section provides information about the aids available in the VectorStar Application software and the troubleshooting test procedures.
Page 199: Troubleshooting With Error Message
Troubleshooting 4-6 Troubleshooting with Error Message Troubleshooting with Error Message Some system malfunctions cause the VectorStar Application software to display a message in the status bar area of the display as shown below in Figure 4-1. Typical status bar messages and the possible fault and/or remedy is listed below the figure in Table 4-1.
Page 200: Table 4-1. Status Bar Error Messages
4-6 Troubleshooting with Error Message Troubleshooting Table 4-1. Status Bar Error Messages Message Description Possible Faults/Remedies Lock Error “A” Direct Digital Synthesis Reference • Timebase Reference signal lost Unlocked • RF Source Module failed Lock Error “B” Heterodyne Local Oscillator •...
Page 201: Troubleshooting With Self Test
Troubleshooting 4-7 Troubleshooting with Self Test Troubleshooting with Self Test The self test performs a series of tests that verify that various internal MS464XA circuits are functional and operating properly. There are two self tests: • Power Up Self Test •...
Page 202: Figure 4-2. System Menu
4-7 Troubleshooting with Self Test Troubleshooting 3. The right side SYSTEM menu appears. Figure 4-2. SYSTEM Menu 4. Select the Self-Test button. The SELF TEST dialog box appears. 1. SELF TEST dialog box before test at left. 2. SELF TEST dialog box after test at right. Figure 4-3.
Page 203: Table 4-2. Self Test Failure Faults
Troubleshooting 4-7 Troubleshooting with Self Test 5. Select all check boxes: • Source • Analog IF • RF Deck Ctrl • DSP/PC 6. Click Start to begin the initial self-test process. 7. If the test is successful, the Self Test Passed message is displayed. 8.
Page 204: Troubleshooting With Power Supply Voltage Check
4-8 Troubleshooting with Power Supply Voltage Check Troubleshooting Troubleshooting with Power Supply Voltage Check This procedure verifies whether the correct power supply voltages are present at the Power Control connector (P93) and Power Supply input connector (P94) on the Motherboard 2 PCB Assembly – ND70070 – 61923-3. Note P93 and P94 connectors are located near the front panel assembly.
Page 205: Figure 4-4. Blocking Under Instrument With Cover And Front Panel Off
Troubleshooting 4-8 Troubleshooting with Power Supply Voltage Check Figure 4-4. Blocking Under Instrument with Cover and Front Panel Off MS4640A Series VNA MM PN: 10410-00268 Rev. D...
Page 206: Figure 4-5. Motherboard 2 Pcb Assembly P93 And P94 Connectors - Phase 1 Example
4-8 Troubleshooting with Power Supply Voltage Check Troubleshooting Remove Front Panel 5. Remove the Front Panel. • See Section 10-3 “Remove the Phase 1 Front Panel Assembly” on page 10-3. 6. Remove the three (3) screws on each side that secure the Front Panel, six (6) total. 7.
Page 207: Figure 4-6. P93 And P94 Power Connectors - Phase 1 Motherboard 2 Pcb Assembly
Troubleshooting 4-8 Troubleshooting with Power Supply Voltage Check General Motherboard 2 PCB Power Connectors 1. Front Panel location, removed here. 6. P94 Power In Connector – On MB2 PCB. 2. Top Side Digital PCB Assemblies – A3, A4, A6, A7, 7.
Page 208 4-8 Troubleshooting with Power Supply Voltage Check Troubleshooting +12.0V +12.0V +3.8V -12.0V +3.3V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL FRONT PANEL PWR CTRL 1. P61 – Ribbon Cable Connector to Front Panel P94 – Connector Pin 1 2.
Page 209 Troubleshooting 4-8 Troubleshooting with Power Supply Voltage Check +12.0V +3.8V -12.0V +12.0V +3.3V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL HDMI +3.3VD SENSE PWR CTRL 1. P61 – Ribbon Cable Connector to Front Panel P94 – Connector Pin 1 2.
Page 210: Figure 4-8. Schematic - P93 Power Supply Control Connector - Front Panel Standby Voltage
4-8 Troubleshooting with Power Supply Voltage Check Troubleshooting Front Panel Standby Voltage Check 11. Using a DMM or an oscilloscope, measure the Front Panel Standby Voltage between Pin 4 and Pin 5 on P93 as shown below. Verify that +5 V is present. The schematic for the P93 Connector is shown below in Figure 4-8.
Page 211: Table 4-3. Phase 1 Vna P94 Power Supply Voltage Check
Troubleshooting 4-8 Troubleshooting with Power Supply Voltage Check Power Supply DC Voltage Check 12. Press the front panel On/Off switch until its light changes from yellow to green and then release. 13. At the P4 Connector, using a DMM or an oscilloscope, measure the DC voltages listed below. •...
Page 212: Non-Ratio Power Level Check
4-9 Non-Ratio Power Level Check Troubleshooting Non-Ratio Power Level Check This procedure checks the IF power level of each individual receiver. It does not require measurement calibration of the system. It requires that you press specified front panel keys, or use a mouse to make choices from the displayed menus and is valid for all instrument model and option combinations.
Page 213 Troubleshooting 4-9 Non-Ratio Power Level Check Format Trace #3 25. Select the lower left trace (Trace #3) by clicking trace label that starts with Tr3 S21 Trans LogM + P Refl. Note The trace name has additional resolution and unit information appended to the displayed label. 26.
Page 214: Table 4-5. Frequency Band Of Interest For Each Vna Receiver
4-9 Non-Ratio Power Level Check Troubleshooting 52. Observe whether any power level abnormalities appear in the frequency band of interest on the displayed traces. Refer to Table 4-5 for the frequency band of interest for each receiver. Table 4-5. Frequency Band of Interest for Each VNA Receiver VNA Model Frequency Number...
Page 215: 4-10 Hardware Problems
Troubleshooting 4-10 Hardware Problems 4-10 Hardware Problems This section provides specific procedures to be followed when troubleshooting hardware problems. While performing these procedures, always observe the warnings and cautions in the Introduction section of this chapter. To use the troubleshooting procedures in this section: 1.
Page 216: Troubleshooting Power-Up Problems
4-11 Troubleshooting Power-Up Problems Troubleshooting 4-11 Troubleshooting Power-Up Problems If the instrument is non-functional when power-up is attempted, refer to Figure 4-9 below Figure 4-9. Flow Chart for Troubleshooting Power-Up Problems 4-20 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 217: 4-12 Troubleshooting Boot-Up Problems
Application Problem fixed? Panel Assembly Reset* launched? * Use Windows Task Manager to stop the "AC_GUIMain.exe" process. Back up the contents of the Serialization folder in C:\Program Files\Anritsu Company\VectorStar\Dependencies prior to running VectorStar Reset Re-install Replace DSP Problem fixed? VectorStar...
Page 218 4-12 Troubleshooting Boot-Up Problems Troubleshooting 4-22 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 219: 4-13 Troubleshooting Rf Section - Power-Related Problems
Troubleshooting 4-13 Troubleshooting RF Section – Power-Related Problems 4-13 Troubleshooting RF Section – Power-Related Problems If the instrument exhibits power related problems, refer to the linked flowcharts below in Figure 4-11 through Figure 4-17 which are for troubleshooting RF Section problems. START Perform Non Ratio Only one of the...
Page 220 4-13 Troubleshooting RF Section – Power-Related Problems Troubleshooting Replace RF Problem in full Replace RF Problem fixed? Component band? Source Module Control PCB Replace 5-20 GHz Problem in Problem in Problem in Doubler Doubler <2.5 GHz? >38 GHz? >20 GHz? Module Replace Switched Replace Switched...
Page 221 Troubleshooting 4-13 Troubleshooting RF Section – Power-Related Problems Replace LO Problem in full Problem in Coupler band? <2.5 GHz? Replace IF Band Replace Low Band Problem fixed? Module Module Replace LO Problem fixed? Problem fixed? Module Replace DSP Replace RF Problem fixed? Module Source Module...
Page 222 4-13 Troubleshooting RF Section – Power-Related Problems Troubleshooting Check and re- Problem in Problem in full connect Front band? <2.5 GHz? Panel Loop Cables Check and re- Replace Port 1 connect Rear Problem fixed? Coupler Panel Loop Cables Replace Port 1 Problem fixed? Problem fixed? Level Detector...
Page 223 Troubleshooting 4-13 Troubleshooting RF Section – Power-Related Problems Problem in full Problem in band? <2.5 GHz? Replace Port 2 Replace Port 2 Replace Port 2 Diplexer/Bias Tee Coupler Level Detector Assembly Problem fixed? Problem fixed? Problem fixed? Replace Port 2 Replace Port 2 Replace High Diplexer/Bias Tee...
Page 224 4-13 Troubleshooting RF Section – Power-Related Problems Troubleshooting Problem in <2.5 GHz? A1 Level Low? A2 Level Low? B1 Level Low? B2 Level Low? Check and re- Check and re- Check and re- Check and re- connect Front connect Front connect Front connect Front Panel a1 Loop...
Page 225 Troubleshooting 4-13 Troubleshooting RF Section – Power-Related Problems A1 Level Low? A2 Level Low? B1 Level Low? B2 Level Low? Check and re- Check and re- Check and re- Check and re- connect Rear connect Rear connect Rear connect Rear Panel a1 Loop Panel a2 Loop Panel b1 Loop...
Page 226: 4-14 Troubleshooting Frequency Related Problems
4-14 Troubleshooting Frequency Related Problems Troubleshooting 4-14 Troubleshooting Frequency Related Problems If the instrument exhibits frequency related problems, do the following: 1. Perform 10 MHz Frequency Adjustment. If it does not help, go to next step. 2. Apply external 10 MHz Reference to the rear panel input and set the instrument to use external reference.
Page 227: 4-15 Troubleshooting Front Panel Problems
Troubleshooting 4-15 Troubleshooting Front Panel Problems 4-15 Troubleshooting Front Panel Problems There are no serviceable items within the front panel assembly. Any failures of the front panel assembly require replacing the entire assembly as a whole. Refer to Table 4-6 below for a list of possible front panel problems and solutions.
Page 228: 4-16 Troubleshooting Rear Panel Problems
4-16 Troubleshooting Rear Panel Problems Troubleshooting 4-16 Troubleshooting Rear Panel Problems The rear panel includes the following connectors: • PS/2 Mouse Port • PS/2 Keyboard Port • USB Ports • Serial Ports • Parallel Ports • LAN Port • VGA Port •...
Page 229: 4-17 Troubleshooting Software Problems
Troubleshooting 4-17 Troubleshooting Software Problems 4-17 Troubleshooting Software Problems The VectorStar MS4640A VectorStar VNA uses an open Microsoft Windows 7 Professional or Windows XP Professional operating system. This requires service personnel to be knowledgeable about the Windows operating system in order to resolve the problems related to the operating system and the VectorStar Application software.
Page 230: 4-18 Troubleshooting Measurement Problems
4-18 Troubleshooting Measurement Problems Troubleshooting 4-18 Troubleshooting Measurement Problems If the MS4640A measurement quality is suspect, the following paragraphs provide guidelines and hints for determining possible quality problems. VNA Measurement Quality The quality of MS4640A VNA measurements is determined by the following test conditions and variables: 1.
Page 231: Chapter 5 - Adjustment Procedures
Chapter 5 — Adjustment Procedures Introduction This chapter provides information about adjustments required for the MS4640A Series Vector Network Analyzers. Most of these adjustments are typically driven by the VectorStar Application software on the VNA to fine-tune the system hardware for optimum performance. The adjustments are typically performed as a result of replacement of sub-assemblies or RF components or because out-of-tolerance conditions have been noted during instrument key performance parameter testing (see...
Page 232: Recommended Test Equipment
Input Impedance: 50 Ohm Frequency Reference Frequency: 10 MHz Symmetricom Model RubiSource T&M Power Meter Power Range: –70 to +20 dBm Anritsu Model ML2438A Power Sensor Frequency: 70 kHz to 70 GHz Anritsu Model SC7770 Connector Type: V • The SC7770 70 kHz to 70 GHz Power Sensor is required for supporting MS4647A and other models with Option 70.
Page 233 Instrument Specifications Model Number Calibration Kit Connector Type: V Anritsu Model 3654D V Connector Anritsu Model 3654D-1 V Connector with Sliding Loads Coaxial Cable Frequency: DC to 40 GHz Anritsu Model 3670K50-2 Connector Type: K (m) to K (f) Coaxial Cable...
Page 234: Recommended Adjustment Procedures
5-3 Recommended Adjustment Procedures Adjustment Procedures Recommended Adjustment Procedures Table 5-2 below lists the adjustments that should be performed following the replacement of many MS4640A sub-assemblies or RF components. Table 5-2. Required Replacement Assembly Adjustments (1 of 3) Sub-Assembly or Perform the Procedure RF Component Replaced...
Page 235 Adjustment Procedures 5-3 Recommended Adjustment Procedures Table 5-2. Required Replacement Assembly Adjustments (2 of 3) Sub-Assembly or Perform the Procedure RF Component Replaced Following Adjustment(s) Sections Note 1: Perform all adjustment procedures if original Cal Data files are not available Low Band Transfer Switch Source Auto Leveling Control Adjustment Factory RF Calibration...
Page 236 5-3 Recommended Adjustment Procedures Adjustment Procedures Table 5-2. Required Replacement Assembly Adjustments (3 of 3) Sub-Assembly or Perform the Procedure RF Component Replaced Following Adjustment(s) Sections Note 1: Perform all adjustment procedures if original Cal Data files are not available Sampler Module Factory RF Calibration 5-11...
Page 237: Adjustment Setup
Adjustment Procedures 5-4 Adjustment Setup Adjustment Setup With the exception of the LCD Touch Panel Calibration Adjustment, the hardware adjustment functions are accessed by selecting the Diagnostics button under the System Menu. The Diagnostics Menu is password-protected to prevent a casual VNA user from changing the correction coefficients inadvertently. Procedure To access the DIAGNOSTICS menu, do the following: 1.
Page 238: Figure 5-2. Diagnostics Menu
5-4 Adjustment Setup Adjustment Procedures Figure 5-2. DIAGNOSTICS Menu PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 239: Figure 5-3. Hardware Cal Menu
Adjustment Procedures 5-4 Adjustment Setup Figure 5-3. HARDWARE CAL Menu MS4640A Series VNA MM PN: 10410-00268 Rev. D...
Page 240: Figure 5-4. Factory Cal Menu
5-4 Adjustment Setup Adjustment Procedures 9. Select Factory Cal to access the FACTORY CAL menu with its RF Cal and Rcvr Cal sections as shown in Figure 5-4 below. Figure 5-4. FACTORY CAL Menu 5-10 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 241: 10 Mhz Frequency Reference Adjustment (10 Mhz Cal)
The 10 MHz calibration adjusts the frequency accuracy of the 10 MHz Reference Oscillator of the MS4640A. Two methods, Automatic or Manual, can be used for this adjustment. Automatic Method Required Equipment • Anritsu Model MF2412B Frequency Counter • 10 MHz Reference Timebase • GPIB Interface Cable •...
Page 242: Manual Method Required Equipment
5-5 10 MHz Frequency Reference Adjustment (10 MHz Cal) Adjustment Procedures Manual Method Required Equipment • Any Frequency Counter with top frequency coverage > 17 GHz • 10 MHz Reference Timebase • RF Coaxial Cable, K(m) to K (f) • Adapter, V (f) to K(m) •...
Page 243: Source Pretune Dac Adjustment (Src Pretune Cal)
Adjustment Procedures 5-6 Source Pretune DAC Adjustment (Src Pretune Cal) Source Pretune DAC Adjustment (Src Pretune Cal) This calibration adjusts the pre-tune DAC values for the RF Source Module. Equipment Required • None Procedure 1. Warm up the VNA for at least 90 minutes. 2.
Page 244: Source Lo Level Adjustment (Src Lo Level Cal)
Equipment Required • Anritsu ML2438A Power Meter • Anritsu SC7770 Power Sensor • Anritsu 34NKF50 N (m) to K (f) Adapter • Anritsu 34VFK50 V (f) to K (m) Adapter • Anritsu 34VFKF50 V (f) to K (f) Adapter • Anritsu 43KC-20 20 dB Fixed Attenuator •...
Page 245: Figure 5-8. Lo Level Cal Menu And High Band Rev (Vs) Setting
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) 9. Select the Src LO Level Cal button. The LO CAL menu appears as shown in Figure 5-8 below. If the A111 LO Distribution Module – ND70081 – 66270 is If the A111 LO Distribution Module –...
Page 246: Figure 5-9. Src Lo Level Cal (Low Band) Calibration Dialog Box
5-7 Source LO Level Adjustment (Src LO Level Cal) Adjustment Procedures 10. Select the Low Band button. The SRC LO LEVEL CAL (LOW BAND) CALIBRATION dialog box appears as shown in Figure 5-9 below. Do not start the calibration yet. Figure 5-9.
Page 247: Figure 5-10. J4, J6, And J14 Connector Locations - A13 Rf Source Module
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) 11. Disconnect the Low Band LO Output cable from J6 LB LO1 OUT on the middle A13 RF Source Module as shown in Figure 5-11, “High Band LO Cal Point for a2 on the A103 Sampler J2 connector” on page 5-19 below.
Page 248: High Band Lo Level Adjustment
5-7 Source LO Level Adjustment (Src LO Level Cal) Adjustment Procedures 12. Connect the 7 dB fixed attenuator to the K connector end of 34VFK50 Adapter that is attached to the power sensor. Then connect the power sensor with Adapter and Attenuator to J6 LO1 OUT connector of the RF Source.
Page 249: Figure 5-11. High Band Lo Cal Point For A2 On The A103 Sampler J2 Connector
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) 17. Then, disconnect the semi-rigid cable from the LO Input of the a2 Sampler. Gently bend the cable out towards the front of the instrument. • See the general location of the a2 general location above in Figure 5-11, “High Band LO Cal Point for a2 on the A103 Sampler J2 connector”...
Page 250 5-7 Source LO Level Adjustment (Src LO Level Cal) Adjustment Procedures MS4647A 70 GHz RF Deck with Option 062 shown. Low Band Attenuators High Band Cal Point 8. A124 – Low Band Port 1 Test (P1 b1) Attenuator – ND70085 – 3-2000-1502 1.
Page 251: Figure 5-12. A103 A2 Sampler V Connector Location
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) A130 A111 A111 A111 A100 A101 A102 A103 A103 J2 a2 Sampler V Connector Figure 5-12. A103 a2 Sampler V Connector Location (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 252 5-7 Source LO Level Adjustment (Src LO Level Cal) Adjustment Procedures Sampler/LO Distribution Module Assembly A130 LO Coupler Module The Sampler/LO Distribution Module Assembly consists 9. A130 – LO Coupler Module – ND70083 – 68848 of the A111, A100, A101, A102, and A103 modules, and •...
Page 253: Figure 5-13. Src Lo Level Cal (High Band) Calibration Dialog Box
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) 23. On the MS4640A, click on the High Band button and the SRC LO LEVEL CAL (HIGH BAND) CALIBRATION dialog box appears as shown in Figure 5-13 below. Figure 5-13. Src LO Level Cal (High Band) Calibration Dialog Box 24.
Page 254: Low Band Lo Level Optimization
MENU BAR | 8. Help | HELP Drop-Down Menu | 3. About VectorStar. The VectorStar Application Software may be downloaded from the VectorStar Users Site at http://www.us.anritsu.com/VectorStar Then navigate to the VectorStar Users Site. 31. Verify that the Noise Floor below 2.5 GHz is within specifications by performing the Noise Floor Test as described in Chapter 3, “Performance...
Page 255: Figure 5-14. Location Of Low Band Dac Values That Require Modification
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) <LowBand> <CalVersion>1</CalVersion> <CheckSum>320</CheckSum> <TimeStamp> <Year>2008</Year> <Month>11</Month> <Day>5</Day> <Hour>15</Hour> <Minute>15</Minute> <Second>51</Second> </TimeStamp> <DacPts>30</DacPts>  <Coefficients> <Point_0>12420000;5632</Point_0> <Point_1>13000000;5632</Point_1> <Point_2>21300000;5760</Point_2> <Point_3>50000000;5760</Point_3> <Point_4>100000000;4864</Point_4> <Point_5>200000000;4608</Point_5> <Point_6>300000000;4480</Point_6> <Point_7>400000000;4480</Point_7> <Point_8>500000000;4480</Point_8> <Point_9>600000000;5248</Point_9> <Point_10>700000000;5248</Point_10> <Point_11>750000000;5376</Point_11> <Point_12>800000000;5376</Point_12> <Point_13>900000000;4992</Point_13> <Point_14>1000000000;5376</Point_14> <Point_15>1125000000;5504</Point_15>...
Page 256: High Band Lo Level Optimization
MENU BAR | 8. Help | HELP Drop-Down Menu | 3. About VectorStar. The VectorStar Application Software may be downloaded from the VectorStar Users Site at http://www.us.anritsu.com/VectorStar Then navigate to the VectorStar Users Site. 40. Connect a through cable between VNA Port 1 and Port 2.
Page 257: Table 5-3. High Band Lo Level Optimization Set Up
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) n. Click on Tr6 and then select S12. o. Press the Scale key on the front panel and set Tr1, Tr2, Tr3, and Tr4 to: • Reference Value of –20 dB •...
Page 258 5-7 Source LO Level Adjustment (Src LO Level Cal) Adjustment Procedures Spikes >0.02 dB 49. Do the following sub-procedure if there are spikes greater than ~0.20 dB: a. Press the Marker key on the front panel. Turn Mkr 1 ON and put the marker on the spike and note the frequency at which it occurs.
Page 259 Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) No Spikes > ~0.02 dB 52. Repeat Step #42 on page 5-27 through Step #48 for the setup parameters listed in the next 13 rows of Table 5-3, “High Band LO Level Optimization Set Up” on page 5-30 below.
Page 260 5-7 Source LO Level Adjustment (Src LO Level Cal) Adjustment Procedures Figure 5-15. TRACE LAYOUT Menu Table 5-3. High Band LO Level Optimization Set Up (1 of 2) Start (GHz) Stop (GHz) # of Points 1601 5-30 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 261: Figure 5-16. Location Of High Band Dac Values That Require Modification
Adjustment Procedures 5-7 Source LO Level Adjustment (Src LO Level Cal) Table 5-3. High Band LO Level Optimization Set Up (2 of 2) Start (GHz) Stop (GHz) # of Points 1601 <?xml version="1.0"?>  <HardwareCal CalType="LOCal" PC_Version="1.0.2" DSP_Version="1.0.3"> <HighBand>...
Page 262: Sqm Power Adjustment (Sqm Power Cal)
MS4645A and MS4647A only. Equipment Required • Anritsu ML2438A Power Meter • Anritsu SC7770 Power Sensor or Anritsu MA24005A Power Sensor • Anritsu 34NK50 N (m) to K (m) Adapter • Anritsu 34VFKF50 V (f) to K (f) Adapter • Anritsu 43KC-20 20 dB Fixed Attenuator Do not disconnect the output cable of the A113 5-20 GHz Doubler Module from the input of the A114 SQM at any time that RF power is applied to the 5-20 GHz Doubler Module.
Page 263: Figure 5-17. Sqm Power Cal Dialog Box
Adjustment Procedures 5-8 SQM Power Adjustment (SQM Power Cal) 7. Disconnect the 5-20 GHz Doubler Module output RF semi-rigid cable from J1 Input connector of the A114 SQM as shown in Figure 5-18 below. Figure 5-17. SQM Power Cal Dialog Box 8.
Page 264: Figure 5-18. Location Of A114 Sqm J1 Input Connector
5-8 SQM Power Adjustment (SQM Power Cal) Adjustment Procedures A112 A114 A114 A108 VITS 4. A108 V Integrated High Band Transfer Switch (VITS) RF Deck Bottom Side – MS4647A VNA equipped with – ND70093 – 66619 Option 062 5. A112 Switched Doubler Module (SDM) – ND70098 – 1.
Page 265: Source Auto Leveling Control Adjustment (Alc Cal)
• Anritsu ML2438A Power Meter • Anritsu SC7770 Power Sensor • For Models MS4645A and MS4647A: • Anritsu 33VFVF50C V (f) to V (f) Adapter • Pasternack PE9718 N (m) to V (m) Adapter • For Models MS4642A and MS4644A: •...
Page 266: Figure 5-19. Alc Cal Menu
5-9 Source Auto Leveling Control Adjustment (ALC Cal) Adjustment Procedures 5. Select the ALC Cal button and the ALC CAL menu appears as shown in Figure 5-19. Figure 5-19. ALC Cal Menu ALC Offset Cal 6. Select the ALC Offset Cal button and the ALC OFFSET CAL dialog box appears (Figure 5-20).
Page 267: Figure 5-20. Alc Offset Cal Dialog Box
Adjustment Procedures 5-9 Source Auto Leveling Control Adjustment (ALC Cal) 7. Select the Start Cal button to begin the calibration. Click on the Close button when done. Figure 5-20. ALC OFFSET CAL Dialog Box Port 1 ALC Cal 8. Zero and calibrate the Power Sensor with the Power Meter. 9.
Page 268: Figure 5-21. Port 1 Alc Cal (Full Band) Dialog Box
5-9 Source Auto Leveling Control Adjustment (ALC Cal) Adjustment Procedures Select “A-Full range power Sensor” for instruction step #2. Figure 5-21. PORT 1 ALC CAL (FULL BAND) Dialog Box Port 2 ALC Cal 13. Zero and calibrate the Power Sensor with the Power Meter. 14.
Page 269: Figure 5-22. Port 2 Alc Calibration
Adjustment Procedures 5-9 Source Auto Leveling Control Adjustment (ALC Cal) 16. Select the Start Cal button to perform calibration. Click on the Close button when done. Figure 5-22. Port 2 ALC Calibration MS4640A Series VNA MM PN: 10410-00268 Rev. D 5-39...
Page 270: Analog In Adjustment (Analog In Cal)
5-10 Analog In Adjustment (Analog In Cal) Adjustment Procedures 5-10 Analog In Adjustment (Analog In Cal) This calibration adjusts the offset and gain range of the analog inputs. Equipment Required • None Procedure 1. Warm up the VNA for at least 90 minutes. 2.
Page 271: Factory Rf Calibration (Rf Cal)
User Measurement Calibration. Equipment Required • Anritsu 3652A K Connector Calibration Kit (For MS4642A and MS4644A) • Anritsu 3654D V Connector Calibration Kit (For MS4645A and MS4647A) • Coaxial Through Line Cable, male to female •...
Page 272: Figure 5-25. Factory Rf Cal Dialog Box
5-11 Factory RF Calibration (RF Cal) Adjustment Procedures 5. Change the parameters in the dialog box as shown in Table 5-4 below. Click the Apply button when done. Table 5-4. Parameter Changes for Factory RF Calibration For Model(s) MS4642A / MS4644A VNAs MS4645A/MS4647A VNAs Open Length (mm) 5.00...
Page 273 Adjustment Procedures 5-11 Factory RF Calibration (RF Cal) 7. Connect each calibration standard from the calibration kit in sequence to the appropriate port. Click the appropriate button when ready. 8. When all seven (7) calibration standards have been measured, click the Done button to complete. MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 274: Factory Receiver Calibration (Rcvr Cal)
5-12 Factory Receiver Calibration (Rcvr Cal) Adjustment Procedures 5-12 Factory Receiver Calibration (Rcvr Cal) The Factory Receiver Calibration is intended to allow the non-ratioed parameters to read out closer to absolute power levels without a user receiver calibration. Equipment Required •...
Page 275: 5-13 Lcd Touch Panel Calibration Adjustments
Adjustment Procedures 5-13 LCD Touch Panel Calibration Adjustments 5-13 LCD Touch Panel Calibration Adjustments The LCD touch panel calibration is used to align the touch screen coordinates with those of the LCD display. Equipment Required • None Procedure 1. Exit the VectorStar application by selecting File from the Icon Tool Bar and then Exit from the drop down menu.
Page 276: Figure 5-28. Hampshire Tsharc Control Panel - Calibration Tab
5-13 LCD Touch Panel Calibration Adjustments Adjustment Procedures 4. Select the Calibration tab and then click on the Configure button. Figure 5-28. Hampshire TSHARC Control Panel - Calibration Tab 5-46 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 277: Figure 5-29. Hampshire Tsharc Control Panel, Calibration Options
Adjustment Procedures 5-13 LCD Touch Panel Calibration Adjustments 5. On the CALIBRATION OPTIONS dialog box, select 20 point calibration and 10% offset. Also click on the Inset Calibration Targets check box to enable the option (Figure 5-29). Figure 5-29. Hampshire TSHARC Control Panel, Calibration Options 6.
Page 278: Figure 5-30. Calibration Screen With Target Symbol
5-13 LCD Touch Panel Calibration Adjustments Adjustment Procedures 7. On Calibration tab window, use your finger to touch the red target symbol and the Calibration screen will appear (Figure 5-30). Figure 5-30. Calibration Screen with Target Symbol 8. Touch the target symbol with your finger and hold until the displayed word changes from TOUCH to HOLD to RELEASE.
Page 279: Figure 5-31. Touch Target Movement Verification Screen
Adjustment Procedures 5-13 LCD Touch Panel Calibration Adjustments 9. Next, the touch target movement verification screen will then appear (Figure 5-31). Use your finger to touch the screen and target symbol will appear at where your finger touches on screen. Figure 5-31.
Page 280: 5-14 Through Line Length Determination Procedure
This procedure is used to determine the length of the through line cable (including adapters) that is used for Factory RF Calibration. Equipment Required • Anritsu 3652A K connector Calibration Kit (For K connector cable) • Anritsu 3654D V connector Calibration Kit (For V connector cable) Procedure 1.
Page 281: Figure 5-33. Install Dialog Box
Adjustment Procedures 5-14 Through Line Length Determination Procedure 5. Select Cal Kit/AutoCal Characterization 6. Select Install Kit/Charac 7. The Install dialog box appears (Figure 5-33). Then, select the Cal Kit radio button, and click the browse button. Figure 5-33. Install Dialog Box MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 282: Figure 5-34. Open Dialog Box
5-14 Through Line Length Determination Procedure Adjustment Procedures 8. Locate Removable Disk (x:), where x is the drive letter designated to the USB drive by Windows (Figure 5-33). Figure 5-34. Open Dialog Box 9. Click on the Files of Type: down arrow, select Lightning Files and click Open 5-52 PN: 10410-00268 Rev.
Page 283: Figure 5-35. Highlight The Calibration Kit Component Coefficient File
Adjustment Procedures 5-14 Through Line Length Determination Procedure 10. The calibration kit component coefficient files are listed. Highlight the first file (e.g. Kit_info.kfo), click Open as shown in Figure 5-35. Figure 5-35. Highlight the calibration kit component coefficient file 11. Back to the Install dialog box, click OK to load the coefficients (Figure 5-36).
Page 284: Figure 5-37. Message Box
5-14 Through Line Length Determination Procedure Adjustment Procedures 12. A message box will appear to state all four files has been loaded (Figure 5-37). Click OK button to close the box. Figure 5-37. Message Box 13. Touch the Back icon to return to the CALIBRATION [TR] Menu. 14.
Page 285: Chapter 6 - Theory Of Operation
Chapter 6 — Theory of Operation Introduction This chapter provides a brief overview of the functional assemblies and major parts that comprise the MS4640A VNA system. It also briefly describes the operation of each major assembly. System Overview MS4640A Series Vector Network Analyzers are ratio measurement systems used to measure complex vector signal characteristics of devices and systems in the 70 kHz to 70 GHz frequency range.
Page 286: System Description
The MS4640A Vector Network Analyzer essentially incorporates two Vector Network Analyzers in one instrument. It consists of a Low Band section and a High Band section. The frequency break point of these two sections is 2.5 GHz. Refer to Figure 6-1, “VectorStar MS4640A Series VNA Simplified Block Diagram” below. MS4640A Series VNA Block Diagram >2.5 GHz...
Page 287: Functional Description Of Major Assemblies
Theory of Operation 6-4 Functional Description of Major Assemblies Functional Description of Major Assemblies The MS4640A internal assemblies and components can be divided into four major groups depending on their mounting location inside the instrument as shown below in Figure 6-2, “Phase 1 MS4640A Series VNA Typical Internal Assemblies and Components”: •...
Page 288 6-4 Functional Description of Major Assemblies Theory of Operation Front Panel RF Deck Top Side Modules 1. Typical Front Panel (Phase 1 shown) 8. RF Deck Top Right Side Modules – Consisting of: • A113 5-20 GHz Doubler Module (rear) 2.
Page 289: Analog Section
Theory of Operation 6-5 Analog Section Analog Section The Analog section is located on the right side of the instrument. It consists of the following module assemblies: • RF Source Module • Low Band Receiver Module • IF Band Module RF Source Module The RF Source Module generates the primary source and the local oscillator (LO) outputs.
Page 290: If Band Module
6-5 Analog Section Theory of Operation However, the common offset mode can only be used when the Source and LO frequencies are relatively close. The range of the DDS limits the allowable frequency difference. Furthermore, the Source and LO must be operating in the same frequency band.
Page 291: Rf Deck
Theory of Operation 6-6 RF Deck RF Deck The RF Deck is located on the bottom side of the instrument. It consists of the RF Component Control PCB Assembly and RF/Microwave components for the MS4640A Vector Network Analyzer. These components perform the following: •...
Page 292: 5-20 Ghz Doubler Module
6-6 RF Deck Theory of Operation LO Module Depending on the frequency of operation, the LO Module distributes the 2.5 to 5 GHz LO signals from the High Band LO Output of the RF Source Module to the Sampler Modules with frequency either unchanged or doubled to 5 to 10 GHz.
Page 293: Low Band Receiver Bridges
Theory of Operation 6-6 RF Deck Low Band Receiver Bridges The Low Band Receiver Bridge samples the Low Band stimulus signal and routes the sample to the Reference signal input (a1 or a2) of the Low Band Receiver Module. Low Band Test Bridges The Low Band Test Bridge separates the Low Band test signal (Reflected or Transmitted) from the stimulus signal and routes the test signal to the Test signal input (b1 or b2) of the Low Band Receiver Module.
Page 294: Digital Section
6-7 Digital Section Theory of Operation Digital Section The Digital Section is located on the left side of the instrument. The assemblies present depend on the instrument serial number. Table 6-1 below shows a summary of the Phase 1 and Phase 2 Digital Section PCBs and related assemblies.
Page 295: Graphic Adapter Card
Theory of Operation 6-7 Digital Section Graphic Adapter Card For VNAs with S/N 1132241 and below, the Graphic Adapter Card is a high performance dual display controller with 32 Mbytes of internal DRAM. It supports the digital flat panel display with a Transition Minimized Differential Signaling TMDS (PanelLink ) interface via the PMC P4 connector.
Page 296: Solid State Drive Assembly
6-7 Digital Section Theory of Operation Solid State Drive Assembly For VNAs with S/N 1133242 and above, and above, the Solid State Drive Assembly is a data storage device with an interface conformed to SATA (Serial AT Attachment) standards. It is connected directly to the Motherboard 2 PCB Assembly.
Page 297: Main Chassis Assemblies
Theory of Operation 6-8 Main Chassis Assemblies Main Chassis Assemblies The major assemblies mounted to the basic frame of the VNA are: • Motherboard 1 PCB Assembly • Motherboard 2 PCB Assembly • Power Supply • Front Panel Assembly • Rear Panel PCB Assembly Motherboard 1 PCB Assembly The Motherboard 1 PCB Assembly provides signal routing and DC power distribution paths for the Low Band Receiver Module, IF Band Module and RF Source Module.
Page 298: Rear Panel Pcb Assembly
6-8 Main Chassis Assemblies Theory of Operation • Provide an interface for user input of measurement setup and control information, via a touch screen, keys and a rotary knob • Acts as a structural member of the instrument enclosure • Provides RF shielding for the front of the instrument The front panel consists of the front panel, the front panel rotary knob, the front panel control/interface PCB, the USB A Interface connectors, and a 26 cm (10.4 in) diagonal TFT type XGA Color Liquid Crystal Display with touch screen.
Page 299: Overall Operation
Theory of Operation 6-9 Overall Operation Overall Operation Low Band Operation The 70 kHz to 2.5 GHz stimulus signal from the Low Band Source Out connector of the RF Source Module is switched via the Low Band Transfer Switch between the front panel Port 1 and Port 2 connectors. The Low Band Transfer Switch is controlled by the DSP Module via the RF Component Controller PCB Assembly to set the direction of the signal flow for the desired test.
Page 300: 6-10 Functional Block Diagrams
6-10 Functional Block Diagrams Theory of Operation The Level Detector provides feedback to the RF Source Module for High Band stimulus signal automatic leveling control (ALC). The sampled stimulus signal is then fed to the Reference signal Sampler Module. The reflected and transmitted device-under-test (DUT) signals are received simultaneously via the Port 1 and Port 2 Couplers.
Page 301 Theory of Operation 6-10 Functional Block Diagrams Figure 6-3. Functional Block Diagram – Overview of VectorStar MS4640A VNA MS4640A Series VNA MM PN: 10410-00268 Rev. D 6-17...
Page 302 6-10 Functional Block Diagrams Theory of Operation Power Supply Module Assembly High Current Low Current Outputs Outputs +3.3v +6v +12v +3.8v +12v -12v +5(standby) All Voltages to Motherboard #2 PCB Assembly Aux I/O and Triggers Quiet Bus Dedicated GPIB (internal only) (rear panel) From Power Supply...
Page 303 Theory of Operation 6-10 Functional Block Diagrams AUX I/O Quiet Trigger Dedicated GPIB From (internal) (Rear Panel) Power Standby Supply Motherboad #2 PCB Assembly Front DSP Module Control Panel On/Off To RF Power Supply Component Solid Distribution Control cPCI Bus State Drive Carrier Board...
Page 304 6-10 Functional Block Diagrams Theory of Operation 5-20 GHz Doubler 10 to 20 GHz 2.5 to 20 GHz Switched Quadrupler Module (SQM) (70 GHz Models Only) 2.5 to 5.0 GHz Notes Indicates optional external access cable DSP Quiet Indicates optional step attenuator In 20 and 40GHz models, a SPDT switch is used High Band...
Page 305 Theory of Operation 6-10 Functional Block Diagrams Switched Doubler Module 2.5 to (SDM) 70 GHz (Forward) 2.5 to High Band 40 GHz Transfer Switch (40 and 70GHz models only) 2.5 to 70 GHz Switched Quadrupler Module (Reverse) (SQM) 5-20 GHz 38 to Doubler 70GHz...
Page 306 6-10 Functional Block Diagrams Theory of Operation To Reference 2.5 to 70 GHz (Forward) Coupler High Band Transfer Switch Switched Doubler Module (SDM) 2.5 to 40 GHz 2.5 to 70 GHz (Reverse) 38 to 70 GHz To Level Switched Detector Quadrupler Module (SQM) Low Band Module...
Page 307 Theory of Operation 6-10 Functional Block Diagrams Port 1 Source Reference Port 1 cable Coupler Coupler 2.5 to 70 GHz Diplexer (Forward) w/ Bias Tee Level 2.5 to 70 GHz Sampler Detector (Reverse) From LO Module DSP Quiet Bus To Low Band Test Bridge From Ext Port...
Page 308 6-10 Functional Block Diagrams Theory of Operation 6-24 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 309: Chapter 7 - Replacement Part Groups And Common Procedures
• Torque – Use the appropriate torque wrench to tighten the connector to a specified value. In all cases, the recommended Anritsu tool (or equivalent) is specified. • Throughout this manual, SI torque units are used. For more information on SI units, refer to NIST Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition available at www.nist.gov.
Page 310: Replacement Part Groups
7-3 Replacement Part Groups Replacement Part Groups and Common Procedures • Signal/Power Connections – These are miscellaneous signal and power connections either as a multi-wire harness, one or more twisted pairs, or a ribbon cable. Not all replacement parts come with the appropriate cable or harness.
Page 311: Front Panel
Replacement Part Groups and Common Procedures 7-3 Replacement Part Groups External Components The chapter on external components (Chapter 8, “External Component Procedures”) describes how to replace Front and Rear Panel external components. These procedures can be accomplished while the covers remain in place.
Page 312: Rf Deck Bottom Side Module Replacement Overview
In some cases, specific instructions about removal and installation sequencing with cautions is also described. It also provides a link to module cross references by replacement part number, part name, Anritsu part number, engineering reference number, and RF Deck location. Finally, this chapter provides additional links to each RF Deck area and the modules located there.
Page 313: Rf Deck Bottom Side Port Module Groups
Replacement Part Groups and Common Procedures 7-3 Replacement Part Groups • The A108 Engineering Reference Number refers to two separate components that vary depending on the instrument model. • MS4642A / MS4644A: A108 High Band Transfer Switch, 40 GHz – ND70092 – 66221 – The abbreviated designator for this component is the A108 HBTS.
Page 314: Rf Deck Top Side Modules
7-3 Replacement Part Groups Replacement Part Groups and Common Procedures • Section 13-16 “Option 061/062 - Attenuators - Preparing” on page 13-47 These sections provide removal, preparation, and installation procedures “side-attached” modules which have various combinations of brackets and/or harnesses. On the outside of various port module groups, these modules can be quickly removed, prepared, and then replaced.
Page 315: Rear Panel Components
Replacement Part Groups and Common Procedures 7-3 Replacement Part Groups • Section 15-17 “Install the SLODM onto the RF Deck” on page 15-66 Rear Panel Components This chapter (Chapter 16, “Rear Panel Components”) describes how to remove the Rear Panel Sub Plate, the Rear Panel Assembly, and then service the underlying components of the A17 Rear Panel PCB Assembly and the Rear Panel Fan Assembly.
Page 316: Full Disassembly Procedures
7-3 Replacement Part Groups Replacement Part Groups and Common Procedures Full Disassembly Procedures Note These two procedures below are not recommended for repair or replacement processes. The procedures are contained in Appendix C, “Full Disassembly Procedure” describe how to fully disassemble the MS4640A Series VNA into its individual component assemblies, and then how to disassemble each major sub-assembly usually for purposes of recycling the instrument.
Page 317: Common - Prepare Work Area And Safety
Appendix B, “Recommended VectorStar Maintenance Fixtures” for a description of the T3545 Fixture. It is available from Anritsu or can easily be fabricated locally. 6. When working around the Front Panel or the RF Deck, a blocking device is essential to keep the loops and other components from being damaged.
Page 318: Common - Remove Outer Cover
7-5 Common - Remove Outer Cover Replacement Part Groups and Common Procedures Common - Remove Outer Cover Use this procedure to remove the instrument Outer Cover. Applicability Applicable for all MS4640A models, use this procedure to remove the instrument outer cover. Procedure 1.
Page 319: Figure 7-1. Outer Cover Assembly
Replacement Part Groups and Common Procedures 7-5 Common - Remove Outer Cover 3. Using two people, tilt the VNA up so that it is vertical and resting on its Front Handles as shown below in Figure 7-1. Make sure the instrument is stable before letting go. 1.
Page 320 7-5 Common - Remove Outer Cover Replacement Part Groups and Common Procedures 4. Remove the four (4) pan head Phillips M4 × 10 mm screws holding the Outer Cover at the Rear Panel. the screws go through the Rear Feet into the inner chassis. 5.
Page 321: Common - Remove Inner Cover
Replacement Part Groups and Common Procedures 7-6 Common - Remove Inner Cover Common - Remove Inner Cover Use this common procedure to remove the Inner Top Cover after removing the Outer Cover. The Inner Cover removal provides access to most internal assemblies. Figure 7-2.
Page 322: Procedure
7-6 Common - Remove Inner Cover Replacement Part Groups and Common Procedures Instrument with Outer Cover removed. 4. Mounting Screws • 13 screws total, five (5) screws on top and four (4) 1. Front Panel on each side 2. Rear Panel •...
Page 323: Common - Install Inner Cover
Replacement Part Groups and Common Procedures 7-7 Common - Install Inner Cover Common - Install Inner Cover Use this procedure to install the Inner Cover as shown in Figure 7-2 above. Procedure 1. Inspect the chassis to make sure all connections are complete, correctly torqued, and all PCBs correctly seated.
Page 324: Common - Install Outer Cover
7-8 Common - Install Outer Cover Replacement Part Groups and Common Procedures Common - Install Outer Cover This procedure installs the Outer Cover while the instrument is standing on its Front Panel Handles. Applicability • Applicable for all MS4640A models with any combination of options. Procedure The procedure is shown in Figure 7-3...
Page 325: Figure 7-3. Front Cover Orientation
Replacement Part Groups and Common Procedures 7-8 Common - Install Outer Cover 5. When viewing the Outer Cover, observe the following orientation: • The edge with the lip goes towards the front and the feet towards the rear. • The side with the single block of ventilation holes goes on the right side. •...
Page 326 7-8 Common - Install Outer Cover Replacement Part Groups and Common Procedures 1. Outer Cover Front 4. Cover Fastening Screws (into Inner Chassis) 2. Right Side Ventilation Block 5. Rear Feet 3. Left Side Ventilation Blocks (viewed from bottom) Figure 7-3. Front Cover Orientation (2 of 2) 6.
Page 327: Chapter 8 - External Component Procedures
Chapter 8 — External Component Procedures Introduction Use this procedure to remove and replace the front panel test ports, the front panel access loops, the rear panel access loops, and the rear panel SATA Solid State Drive (SSD) / Hard Disk Drive (HDD). The procedures covered here are: •...
Page 328: Figure 8-1. Test Port Connectors And Related Hardware
8-2 Replace Front Panel Test Ports External Component Procedures Replace Front Panel Test Ports Use this procedure to replace a Front Panel Test Port for any combination of options or no options. Also use this procedure to remove and later replace the same Test Port to access RF Deck Bottom Side modules, typically the Test Port Couplers.
Page 329 External Component Procedures 8-2 Replace Front Panel Test Ports Procedure 1. Make sure you have the correct front panel Test Port Adapter connector depending on your instrument model. Remove the Test Port Adapter 2. Use a 1/2” torque end wrench set to 60 lbf · in to loosen the Test Port Adapter. When loose, remove the adapter by hand.
Page 330 2. Loosen the Front Panel Loop using a 5/16” torque end wrench set to 8 lbf · in. • Recommended is a 5/16” Torque End Wrench – 8 lbf · in (8 mm 0.9 N · m) – Anritsu 01-201 or equivalent.
Page 331 1. Loosen the to-be-replaced Rear Panel Loop using a 5/16” torque end wrench set to 8 lbf · in. • Recommended is a 5/16” Torque End Wrench – 8 lbf · in (8 mm 0.9 N · m) – Anritsu 01-201 or equivalent.
Page 332: Figure 8-2. Solid State Drive (Left) And Hard Disk Drive (Right)
8-5 Replace the Solid State Drive/Hard Disk Drive Assembly External Component Procedures Replace the Solid State Drive/Hard Disk Drive Assembly Use this procedure to replace the SATA Solid State Drive (SSD) Assembly or the Hard Disk Drive (HDD) Assembly. Note that these replacement parts can only be used to replace a defective HDD/SSD and no additional operating system license is provided with this replacement unit.
Page 333 External Component Procedures 8-5 Replace the Solid State Drive/Hard Disk Drive Assembly 5. After the replacement SATA SSD/HDD is installed, Microsoft Windows needs to be re-activated after installed to the instrument. 6. The original Windows license key (on the Rear Panel) is re-used. MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 334 8-5 Replace the Solid State Drive/Hard Disk Drive Assembly External Component Procedures PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 335: Install The Phase 2 Carrier Board Pcb - Nd73874 - 3-72444-3
Chapter 9 — Remove and Install Digital/Analog PCBs Introduction The chapter describes how to remove the digital and analog printed circuit board (PCB) assemblies from the instrument, remove and replace any mounted daughter boards, and then install the removed assemblies into the instrument PCB bays.
Page 336 9-2 Top Side Digital PCBs Remove and Install Digital/Analog PCBs Top Side Digital PCBs Summary Use this procedure to remove the digital PCB assemblies to either replace one or more digital PCBs or to access a deeper dwelling component. Parts and Applicability All VNAs Used in all Phase 1 and Phase 2 MS4640A Series VNAs with any model and any combination of options: •...
Page 337: Figure 9-1. Digital Pcb Locations - Phase 1 Vnas
Remove and Install Digital/Analog PCBs 9-2 Top Side Digital PCBs • Small Outline Dual In-line Memory Module (SODIMM) – No ND – 3-2000-1671 • Mounts on the front side of the SBC PCB. • Two (2) per instrument • One (1) per replacement kit Digital PCB Locations The figure below shows the instrument chassis with the covers off and the locations of the Phase 1 Digital PCB Assemblies.
Page 338 9-2 Top Side Digital PCBs Remove and Install Digital/Analog PCBs Phase 1 Digital PCB Orientation Analog Section 1. Rear Panel 5. Analog Modules – The PCB-like modules are mounted horizontally in the right side analog PCB 2. Left Side – Left side of instrument when viewed from bay.
Page 339: Figure 9-2. Digital Pcb Locations - Phase 2 Vnas
Remove and Install Digital/Analog PCBs 9-2 Top Side Digital PCBs Digital Fan Rear Panel Fan ND70073 - 62095-1 Rear Panel ND70074 - 62095-2 ND70069 - 61920-3 Analog PCBs IF BAND ND70066 - 61933-3 SOURCE LOW BAND ND73874 - 3-72444-3 ND73876 - 3-2000-1661 ND70062 - 65412-4 ND73933 - 71995 ND70065 - 65413-3...
Page 340 9-2 Top Side Digital PCBs Remove and Install Digital/Analog PCBs 6. A10 Digital Signal Processor PCB Assembly – Phase 2 Digital PCB Orientation ND70066 – 61933-3 1. Rear Panel Analog PCB Section 2. Left Side – Left side of instrument when viewed from 7.
Page 341: Procedure
Remove and Install Digital/Analog PCBs 9-3 Remove Digital PCB Assemblies Remove Digital PCB Assemblies Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 342 9-4 Replace the A10 DSP Module PCB Assembly – ND70066 Remove and Install Digital/Analog PCBs Replace the A10 DSP Module PCB Assembly – ND70066 Use this procedure to replace the A10 DSP Module PCB Assembly – ND70066 or to remove it to access deeper dwelling components.
Page 343: Figure 9-3. Phase 1 - A3 Single Board Computer And A4 Usb Controller Pcb Assemblies
Remove and Install Digital/Analog PCBs 9-5 Replace the A3 SBC and A4 USB PCB Assemblies Replace the A3 SBC and A4 USB PCB Assemblies Use this procedure to replace the A3 Single Board Computer PCB Assembly and/or replace the A4 USB Controller PCB Assembly which is mounted on the A3 PCB.
Page 344 9-5 Replace the A3 SBC and A4 USB PCB Assemblies Remove and Install Digital/Analog PCBs A3 SBC PCB A4 USB PCB 1. A3 Single Board Computer PCB Assembly – 3. A4 USB Controller PCB Assembly – ND70062 – ND70061 – 3-59632 and 3-2000-1525. 65412-4 –...
Page 345 Remove and Install Digital/Analog PCBs 9-6 Replace the A6 Adapter, A7 Graphics, and A8 GPIB PCBs Replace the A6 Adapter, A7 Graphics, and A8 GPIB PCBs Use this procedure to replace the A6 cPCI-PMC Adapter Card PCB Assembly – ND70063 and/or its two daughter-board PCB assemblies: •...
Page 346 9-6 Replace the A6 Adapter, A7 Graphics, and A8 GPIB PCBs Remove and Install Digital/Analog PCBs Identification – A6 and A7 PCBs Figure 9-4 below for PCB identification and DIP Switch location. Back XGA/VGA ND70063 - 3-2000-1485 ND70064 - 3-2000-1517 GPIB ND70065 - 65413-3 Figure 9-4.
Page 347 Remove and Install Digital/Analog PCBs 9-6 Replace the A6 Adapter, A7 Graphics, and A8 GPIB PCBs PCBs DIP Switches 1. A6 cPCI-PMC Adapter Card PCB Assembly (PAC) – 4. A7 Back – There are two (2) configuration DIP ND70063 – 3-2000-1485 switches on the back of A7 PCB labeled SW1 and SW2.
Page 348 9-6 Replace the A6 Adapter, A7 Graphics, and A8 GPIB PCBs Remove and Install Digital/Analog PCBs A6, A7, and A8 PCB Procedure and A7 DIP Switch Settings 1. As described in the section above, remove the A6 cPCI-PMC Adapter Card PCB Assembly from the chassis.
Page 349: Figure 9-4. Phase 1 - A6 Cpci-Pmc Adapter, A7 Graphics Adapter, And A8 Gpib Module Pcbs
Remove and Install Digital/Analog PCBs 9-7 Install the Phase 1 Top Side Digital PCBs Install the Phase 1 Top Side Digital PCBs Use this procedure to install one or more of the Phase 1 top side digital PCBs after either servicing the PCB or accessing a deeper dwelling component.
Page 350 9-8 Replace the Phase 2 Carrier PCB and Daughter-Boards Remove and Install Digital/Analog PCBs Replace the Phase 2 Carrier PCB and Daughter-Boards Use this procedure to remove the Carrier (CB) PCB Assembly – ND73874 – 3-72444-3 and then disassemble it to replace either the CB PCB or one of its daughter-board assemblies.
Page 351: Figure 9-5. Phase 2 - Carrier Board Pcb Assembly - Nd73874 - 3-72444-3 - Front
Remove and Install Digital/Analog PCBs 9-8 Replace the Phase 2 Carrier PCB and Daughter-Boards Identification – Carrier Board – Front Side Assemblies ND70062 - 65412-4 ND73875 - 3-2000-1668 ND73874 - 3-72444-3 SODIMM NO ND - 3-2000-1671 Front GPIB ND70065 - 65413 Figure 9-5.
Page 352 9-8 Replace the Phase 2 Carrier PCB and Daughter-Boards Remove and Install Digital/Analog PCBs 1. Carrier Board PCB (CB PCB) Assembly – ND73874 8. GPIB PCB mounting screws, 2 each – 3-72444-3 9. Connectors for PMC-USB PCB on CB-PCB, 3 each 2.
Page 353: Figure 9-6. Phase 1 - Carrier Board Pcb Assembly - Nd73874 - 3-72444-3 - Back
Remove and Install Digital/Analog PCBs 9-8 Replace the Phase 2 Carrier PCB and Daughter-Boards Identification – Carrier Board – Back Side Assemblies 1. Carrier Board PCB (CB-PCB) Assembly – ND73874 6. Heatsink mounting screws and standoffs, from back – 3-72444-3 of GPU to threaded holes in heatsink, 4 each 2.
Page 354 9-9 Remove the Carrier Board Daughter-Boards Remove and Install Digital/Analog PCBs Remove the Carrier Board Daughter-Boards Use this procedure to either remove all Carrier Board (CB) PCB daughter-boards to replace the CB PCB, or remove individual daughter-boards for replacement. If all CB PCB daughter-boards are removed, it is assumed that the CB PCB is to be replaced.
Page 355 Remove and Install Digital/Analog PCBs 9-9 Remove the Carrier Board Daughter-Boards 5. If replacing the Carrier Board PCB, remove the daughter boards in sequence as described in this procedure. Then use Section 9-10 “Reassemble the Carrier Board PCB Assembly” on page 9-23 reassemble the Carrier Board PCB.
Page 356 9-9 Remove the Carrier Board Daughter-Boards Remove and Install Digital/Analog PCBs Remove the Single Board Computer If removing just the Single Board Computer PCB Assembly (SBC PCB) – ND73875 – 3-2000-1668 for replacement, the disassembly sequence is: 1. Remove the GPU PCB from the back side of the CB PCB. Note 2.
Page 357 Remove and Install Digital/Analog PCBs 9-10 Reassemble the Carrier Board PCB Assembly 9-10 Reassemble the Carrier Board PCB Assembly Use this procedure to replace the Single Board Computer (SBC PCB) – ND73875 – 3-2000-1668 onto the Carrier Board PCB (CB PCB) Assembly – ND73874 – 3-72444-3 or if you are replacing the CB PCB. Procedure 1.
Page 358 9-10 Reassemble the Carrier Board PCB Assembly Remove and Install Digital/Analog PCBs Install the GPU PCB 18. Position the CB PCB so that it is vertical. Do not lay the CB PCB flat on its heat sink side. 19. Install the Graphics Processor Unit (GPU PCB) PCB Assembly – ND73876 – 3-2000-1661 with its attached heatsink on the rear of the CB PCB.
Page 359 Remove and Install Digital/Analog PCBs 9-11 Install the Phase 2 Carrier Board PCB – ND73874 – 3-72444-3 9-11 Install the Phase 2 Carrier Board PCB – ND73874 – 3-72444-3 Use this procedure to install the Carrier Board PCB Assembly (CB PCB) – ND73874 – 3-72444-3 into the instrument chassis after replacing one or more digital PCBs or removing the assembly to access deeper dwelling assemblies.
Page 360: 9-12 Location Of Right Side Analog Module Assemblies
9-12 Location of Right Side Analog Module Assemblies Remove and Install Digital/Analog PCBs 9-12 Location of Right Side Analog Module Assemblies This section describes the following analog module assemblies which are PCB-like in configuration: • A11 IF Band Module – ND70076 – 62080 •...
Page 361: 9-13 Remove Right Side Analog Modules
Remove and Install Digital/Analog PCBs 9-13 Remove Right Side Analog Modules 9-13 Remove Right Side Analog Modules Use this procedure to remove the right side analog section PCB-like module assemblies. After removal, follow up procedures may be to replace an analog module assembly, access other chassis-mounted components, or access RF Deck hardware, components, and cables.
Page 362 9-13 Remove Right Side Analog Modules Remove and Install Digital/Analog PCBs All A11 module cable connectors are MCX. Bottom Left Connectors (left to right) Left Side Connectors (top to bottom) 10. J11 – A1 LO IF – Low Band a1 IF In. Connects to bottom A15 module J13.
Page 363: Figure 9-9. A13 Source Module - Nd70077 - 62082 Or Nd73202 - 62082-1 - Connectors
Remove and Install Digital/Analog PCBs 9-13 Remove Right Side Analog Modules Left Side Connectors Bottom Connectors (continued) 1. J17 – HB LO ALC Input – Connects to A130 LO 8. J9 – Common Het Output – Terminator installed, no Coupler Module and its forward facing J3/J4 pins (on cable.
Page 364: Figure 9-10. A15 Low Band Receiver Module - Nd70075 - 62079 - Connectors
9-13 Remove Right Side Analog Modules Remove and Install Digital/Analog PCBs Center Connectors (left to right) Bottom Connectors (left to right) 1. J13 – Connects to top A11 module J11. 5. J3 – Connects to rear panel. 2. J16 – Connects to top A11 module J14. 6.
Page 365: 9-14 Prepare Right Side Analog Modules
Remove and Install Digital/Analog PCBs 9-14 Prepare Right Side Analog Modules 11. Remove the two (2) outer screws holding the module into its card guide. 12. Pull out the A13 module and set aside. Remove A15 (Lower) Module 13. This is the lower analog module assembly. 14.
Page 366 9-15 Install the Right Side Analog Modules Remove and Install Digital/Analog PCBs 12. Press the A11 module into its backplane connector on the MB1 PCB. 13. Insert two (2) screws to hold the module in place and then tighten. 14. Connect the MCX and semi-rigid coaxial cables as listed in Figure 9-8, “A11 IF Band Module –...
Page 367: Chapter 10 - Front Panel Assembly
Chapter 10 — Front Panel Assembly 10-1 Introduction Use this procedure to remove the original front panel, and if necessary, exchange it with a replacement unit. Note that separate removal and installation procedures are used for Phase 1 and Phase 2 Front Panel Assemblies due to cabling differences.
Page 368 10-2 Access for Other Components Front Panel Assembly • A116/A117 Modules • Section 15-5 “Replace the A116/A117 Low Band Bridge Module” on page 15-12 • Sampler/LO Distribution Module PCB Assembly • Section 15-10 “Remove the Sampler/LO Distribution Module Assembly” on page 15-41 •...
Page 369: 10-3 Remove The Phase 1 Front Panel Assembly
Front Panel Assembly 10-3 Remove the Phase 1 Front Panel Assembly 10-3 Remove the Phase 1 Front Panel Assembly The external Front Panel user controls are identical on all Phase VNAs. The removal and replacement procedure changes depending on whether the Front Panel cables are permanently attached or can be removed. Use this procedure to remove the Front Panel Assembly to either replace it or to provide access to other deeper dwelling components.
Page 370: Figure 10-1. Phase 1 Front Panel Assembly
10-3 Remove the Phase 1 Front Panel Assembly Front Panel Assembly • A ~50 cm (~20”) length of lumber “2 by 2” provides a perfect spacer. Front Panel attached at left. While the cables are attached to the chassis, the Front Panel and the chassis must be kept center-aligned within At right, note the two ribbon cables connecting the 2.5 cm (~1”), and separated by no more than 5 cm (~2”).
Page 371: Figure 10-2. Blocking Under Instrument With Cover And Front Panel Off - Phase 1 Shown
Front Panel Assembly 10-3 Remove the Phase 1 Front Panel Assembly Figure 10-2. Blocking Under Instrument with Cover and Front Panel Off – Phase 1 Shown MS4640A Series VNA MM PN: 10410-00268 Rev. D 10-5...
Page 372 10-3 Remove the Phase 1 Front Panel Assembly Front Panel Assembly Remove the Front Panel 6. Remove the three (3) flat head Phillips M4 × 10 mm screws on each side of the Front Panel, six (6) total. Be very careful not to strain either the Flex Print or Ribbon cables connecting the Front Panel to the Phase 1 Motherboard 2 PCB connectors.
Page 373: Figure 10-3. Phase 1 Front Panel Cable Connections
Front Panel Assembly 10-3 Remove the Phase 1 Front Panel Assembly SLODM ND70070 - 61923-3 6. Phillips-head captive screws on cable connector Removing a Phase 1 Front Panel retainer bar. Front Panel not shown for clarity. 7. White locking tabs on P62 Connector on 1.
Page 374: Figure 10-4. Phase 1 Front Panel Cable Connectors - Close-Up Diagram
10-3 Remove the Phase 1 Front Panel Assembly Front Panel Assembly Remove the Cables from the Chassis 9. The two Front Panel Cables are permanently attached to the Front Panel POWER IN PWR CTRL ND70070 - 61923-3 POWER/SIGNAL SIGNAL Orientation Phase 1 Motherboard 2 PCB Assembly Connectors 1.
Page 375: Figure 10-5. Phase 1 Motherboard 2 Pcb Assembly - Nd70070 - 61923-3 - Front
Front Panel Assembly 10-3 Remove the Phase 1 Front Panel Assembly Identify the Phase 1 Motherboard 2 PCB Connectors 10. Use Figure 10-5 below to identify the Motherboard 2 PCB (MB2 PCB) front connectors for the Front Panel and the Power Supply. +12.0V +3.8V -12.0V...
Page 376 10-3 Remove the Phase 1 Front Panel Assembly Front Panel Assembly Remove Gray Ribbon Cable 11. Identify the grey ribbon cable for power and signal communication with the Front Panel Assembly. • It is connected to Motherboard 2 PCB Assembly connector P61. •...
Page 377: 10-4 Remove The Phase 2 Front Panel Assembly
Front Panel Assembly 10-4 Remove the Phase 2 Front Panel Assembly 10-4 Remove the Phase 2 Front Panel Assembly The external Front Panel user controls are identical on all Phase VNAs. The removal and replacement procedure changes depending on whether the Front Panel cables are permanently attached or can be removed. Use this procedure to remove the Front Panel Assembly to either replace it or to provide access to other deeper dwelling components.
Page 378: Procedure
10-4 Remove the Phase 2 Front Panel Assembly Front Panel Assembly Procedure 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9. 2. Remove Outer Cover. •...
Page 379: Figure 10-6. Phase 2 Front Panel Assembly - Open With Cable Connections
Front Panel Assembly 10-4 Remove the Phase 2 Front Panel Assembly 1. VectorStar VNA Instrument Chassis with RF Deck 7. MB2 PCB P97 HDMI connector with flexible-head Front Panel and Connectors below. HDMI cable to Front Panel HDMI connector. Above the connector, note the cable tie holding the cable to 2.
Page 380: Figure 10-7. Phase 2 Motherboard 2 Pcb Assembly - Nd73878 - 3-72813-3 - Front Detail
10-4 Remove the Phase 2 Front Panel Assembly Front Panel Assembly Remove or Replace the Phase 2 Front Panel Assembly 8. The next steps depend on whether the Front Panel is removed to access a deeper dwelling component or to replace it. •...
Page 381 Front Panel Assembly 10-4 Remove the Phase 2 Front Panel Assembly 1. P61 – Ribbon Cable Connector to Front Panel P94 – Connector Pin 1 2. P62 – +3.3 VDC Sense Connector to Power Supply P94 – Connector Pin 15 Module P94 –...
Page 382: 10-5 Prepare The Replacement Front Panel Assembly
3. On the to-be-replaced Front Panel, for each handle or rack mount ear, remove the two (2) Phillips-head screws – Anritsu Z-951102 holding each handle or ear in place. 4. Once removed, attach the handle or ear to the new Front Panel.
Page 383: Figure 10-8. Model Identity Label - 3-60124-Xx And Front Panel
Front Panel Assembly 10-5 Prepare the Replacement Front Panel Assembly 7. Use one of the following Model Identity Labels: • MS4642A Model Identity Label – No ND – 3-60124-9 • MS4644A Model Identity Label – No ND – 3-60124-10 • MS4645A Model Identity Label – No ND – 3-60124-13 •...
Page 384 8. Clean the label holder recess on the Front Panel with appropriate cleaner and make sure it is dry before proceeding. • Recommended cleaner is Anritsu 783-1358. 9. Peel off the label backing. Position the label in the label recess.
Page 385: 10-6 Install The Phase 1 Front Panel Assembly
Front Panel Assembly 10-6 Install the Phase 1 Front Panel Assembly 10-6 Install the Phase 1 Front Panel Assembly Use this procedure to install the existing or replacement Phase 1 Front Panel Assembly on the instrument. The Front Panel is also replaced using this procedure after the installation procedures listed above in Section 10-2 “Access for Other Components”...
Page 386 10-6 Install the Phase 1 Front Panel Assembly Front Panel Assembly • See Figure 10-1, “Phase 1 Front Panel Assembly” on page 10-4 above. 8. Align the Front Panel so that the panel and chassis centerlines are within ~2.5 cm (~1”) of each other. Position the Front Panel so there is less than ~5 cm (~2”) between the Panel and the chassis.
Page 387: 10-7 Install The Phase 2 Front Panel Assembly
Front Panel Assembly 10-7 Install the Phase 2 Front Panel Assembly 10-7 Install the Phase 2 Front Panel Assembly Use this procedure to install the existing or replacement Phase 2 Front Panel Assembly on the instrument. The Front Panel is also replaced using this procedure after the installation procedures listed above in Section 10-2 “Access for Other Components”...
Page 388 10-7 Install the Phase 2 Front Panel Assembly Front Panel Assembly 8. Align the Front Panel so that the panel and chassis centerlines are within ~2.5 cm (~1”) of each other. Position the Front Panel so there is less than ~5 cm (~2”) between the Panel and the chassis. Add the Front Panel Cables 9.
Page 389: Chapter 11 - Rf Deck Module Replacement Overview
Chapter 11 — RF Deck Module Replacement Overview 11-1 Introduction This chapter provides an overview of the replacement parts located on and in the RF Deck chassis assembly. To avoid damaging components and cables, please read this chapter before attempting any RF Deck module replacements.
Page 390: Rf Deck Chassis Assembly
The RF Deck and Chassis Assembly itself is not a replaceable part. Only its attached modules and the A18 RF Control PCB Assembly are available as replacement parts. In the RF Deck area, many modules have one Engineering Reference “A” Number but can have two (2) separate Replacement/Anritsu Part Numbers depending on the instrument model and/or installed options. Note For example, the A108 Engineering Reference can refer to either the High Band Transfer Switch (HBTS), 40 GHz –...
Page 391: Figure 11-1. Typical Sampler/Lo Distribution Module Assembly - Phase 1 Shown
RF Deck Module Replacement Overview 11-3 RF Deck Top Side Center Modules The basic replacement procedure is to remove the Front Panel and the RF Deck from the instrument chassis. After attaching T3545 Fixtures, the Sampler/LO Distribution Module Assembly is removed from the RF Deck and then disassembled to access the to-be-replaced module.
Page 392 11-3 RF Deck Top Side Center Modules RF Deck Module Replacement Overview Sampler/LO Distribution Module Assembly Sampler Module Mounting on A111 LO Distribution Module The typical Phase 1 Sampler/LO Distribution Module Assembly consists of the modules below: Each Sampler Module plugs into a socket on the A111 •...
Page 393: Rf Deck Top Side Right Modules
RF Deck Module Replacement Overview 11-4 RF Deck Top Side Right Modules 11-4 RF Deck Top Side Right Modules These modules are located on the top right of the RF Deck and can only be serviced after the Front Panel and the RF Deck are removed from the instrument chassis.
Page 394 11-4 RF Deck Top Side Right Modules RF Deck Module Replacement Overview RF Deck A116 Low Band Bridge Module and A117 Low Band Bridge Module 1. RF Deck Top Side. The Front Panel and the RF Deck have been removed from the instrument chassis. 8.
Page 395: Rf Deck Top Side Rear Attenuator Modules - Overview
RF Deck Module Replacement Overview 11-5 RF Deck Top Side Rear Attenuator Modules - Overview 11-5 RF Deck Top Side Rear Attenuator Modules - Overview The number of installed top side attenuator modules depends on the equipped option. The attenuators have different replacement part numbers (ND numbers) but are the same physical/electrical part and are used on all instrument models.
Page 396: Rf Deck Top Side Rear Attenuator Modules - Option 061
11-6 RF Deck Top Side Rear Attenuator Modules - Option 061 RF Deck Module Replacement Overview 11-6 RF Deck Top Side Rear Attenuator Modules - Option 061 The figure below shows the two attenuator RF Deck Top Side configuration for VNAs with Option 061. The detailed removal, preparation, and installation procedures are covered in Chapter 15, “RF Deck Top Side Modules”.
Page 397: Figure 11-4. Ms4640A - Rf Deck Top Side Rear Attenuators - Option 062
RF Deck Module Replacement Overview 11-7 RF Deck Top Side Rear Attenuator Modules - Option 062 11-7 RF Deck Top Side Rear Attenuator Modules - Option 062 The figure below shows the four attenuator RF Deck Top Side configuration for VNAs with Option 062. The detailed removal, preparation, and installation procedures are covered in Chapter 15, “RF Deck Top Side Modules”.
Page 398 11-7 RF Deck Top Side Rear Attenuator Modules - Option 062 RF Deck Module Replacement Overview Same for All RF Deck Top Front Modules Other than the attenuators described below, the RF Deck These modules are described in Section 11-3 “RF Deck Top Side modules are the same for all VNA models.
Page 399: Rf Deck Bottom Side A18 Modules And Pcb
MS4647A Reference Module Name 20 GHz 40 GHz 50 GHz 70 GHz Number Replacement and Anritsu Part Numbers VNAs VNAs VNAs VNAs A18 RF Control PCB Assembly (A18 PCB) A18 PCB ND70068 – 61929-3 A108 High Band Transfer Switch (A108 HBTS),...
Page 400: Ms4642A A18 Modules And Pcb
11-9 MS4642A A18 Modules and PCB RF Deck Module Replacement Overview 11-9 MS4642A A18 Modules and PCB The MS4642A is equipped with just the A18 PCB and the A108 HBTS: • MS4642A: A108 High Band Transfer Switch (A108 HBTS), 40 GHz – ND70092 – 66221 •...
Page 401: 11-10 Ms4644A A18 Modules And Pcb
RF Deck Module Replacement Overview 11-10 MS4644A A18 Modules and PCB 11-10 MS4644A A18 Modules and PCB The MS4644A equipped with the A18 PCB, A108 HBTS, and the A112 SDM: • MS4644A: A112 Switched Doubler Module (A112 SDM) – ND70098 – 59772 •...
Page 402: 11-11 Ms4645A / Ms4647A A18 Modules And Pcb
11-11 MS4645A / MS4647A A18 Modules and PCB RF Deck Module Replacement Overview 11-11 MS4645A / MS4647A A18 Modules and PCB The MS4645A / MS4647A VNAs are equipped with the A18 PCB, A108 VITS, A114 SQM, and the A112 SDM: •...
Page 403: 11-12 Rf Deck Bottom Side - A18 Rf Control Pcb Assembly
RF Deck Module Replacement Overview 11-12 RF Deck Bottom Side - A18 RF Control PCB Assembly 11-12 RF Deck Bottom Side - A18 RF Control PCB Assembly The A18 PCB is the same for all instrument models with any combination of options. In general, the only reason to remove the PCB is to replace it.
Page 404 The RF Deck and Chassis Assembly itself is not a replaceable part. Only its attached modules and circuit board are replaceable. In the RF Deck area, many modules have one Engineering Reference “A” Number but can have two (2) separate Replacement/Anritsu Part Numbers depending on the instrument model and/or installed option. Note For example, the A108 Engineering Reference can refer to either the High Band Transfer Switch (HBTS), 40 GHz –...
Page 405 RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules Ports by Instrument Model and Equipped Option Removing the A108 High Band Transfer Switch (A108 HBTS) in the MS4642A / MS4644A or the A108 V Integrated Switch High Band Transfer Switch (A108 VITS) in the MS4645A / MS4647A must be done before servicing port module groups that are connected to it.
Page 406 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Table 11-2. Port Module Groups by Instrument Model and Equipped Option (2 of 3) Option 061 Option 062 Standard Option 051 Loops and Two Loops and Four Model No Options Loops...
Page 407 RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules Table 11-2. Port Module Groups by Instrument Model and Equipped Option (3 of 3) Option 061 Option 062 Standard Option 051 Loops and Two Loops and Four Model No Options Loops...
Page 408: Figure 11-8. Ms4642A - Standard No Options - Rf Deck Bottom Side - Port Group Modules
11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview • Disassembling the module group, generally by starting with the module closest to the A18 PCB and then working towards the front panel, removing each module in turn, until the to-be-replaced module is accesses and then removed.
Page 409 RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules MS4642A – Standard No Options A108 A107 A119 A110 A109 A129 A106 A105 A128 A118 A104 Figure 11-8. MS4642A - Standard No Options - RF Deck Bottom Side - Port Group Modules (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 410 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Test Ports (from left to right) Test Port 1 • TP2 – Test Port 2 • A105 – Reference Coupler, 40 GHz – No ND – 66487 •...
Page 411 RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules MS4644A – Standard No Options A112 A108 A107 A119 A110 A109 A129 A106 A105 A128 A118 A104 Figure 11-9. MS4644A - Standard No Options - RF Deck Bottom Side - Port Group Modules (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 412 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Test Ports (from left to right) Test Port 1 • TP2 – Test Port 2 • A105 – Reference Coupler, 40 GHz – No ND – 66487 •...
Page 413 RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules MS4645A / MS4647A – Standard No Options A112 A114 A108 A119 A110 A107 A129 A109 A106 A105 A128 A118 A104 Figure 11-10. MS4645A/MS4647A - Standard - RF Deck Bottom Side - Port Group Modules (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 414 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Standard Test Port 1 • Standard No Options • A105 – Reference Coupler 70 GHz – No ND – 65270 • A109 – Port 1 Level Detector, V Connector, 70 GHz – Test Ports (from left to right) ND70097 –...
Page 415: Figure 11-11. Ms4645A / Ms4647A - Option 051 - Rf Deck Bottom Side - Port Group Modules
RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules MS4645A / MS4647A – Option 051 – Front Panel Loops A112 A114 A108 A119 A110 A107 A129 A105 A109 P2 b2 A106 P2 a1 A118 A128 P2 Src TP 2 A104 P1 Src...
Page 416 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Test Ports (from left to right) Port 2 Source • P2 b2 – Port 2 Test Receiver b2 – There are no • A107 – Reference Coupler, 70 GHz – No ND – 65270 modules connected directly to Port 2 b2.
Page 417: Figure 11-12. Ms4645A / Ms4647A - Option 061 - Rf Deck Bottom Side - Port Group Modules
RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules MS4645A / MS4647A – Option 061 – Loops and Two Attenuators A112 A114 A108 A110 A109 A119 A107 A123 A105 A129 P2 b2 A118 A106 A121 P2 a2 A128 P2 Src A104...
Page 418 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Test Ports (from left to right) Port 2 Source • P2 b2 – Port 2 Test Receiver b2 • A107 – Reference Coupler, 70 GHz – No ND – 65270 •...
Page 419: Figure 11-13. Ms4645A / Ms4647A - Option 062 - Rf Deck Bottom Side - Port Group Modules
RF Deck Module Replacement Overview 11-13 RF Deck Bottom Side Port Group Modules MS4645A / MS4647A Option 062 – Loops and Four Attenuators A112 A114 A108 A110 A119 A109 A107 A123 A129 A105 A122 A118 A121 P2 b2 A106 A128 P2 a2 A120 P2 Src...
Page 420 11-13 RF Deck Bottom Side Port Group Modules RF Deck Module Replacement Overview Test Ports (from left to right) Port 2 Source • P2 b2 – Port 2 Test Receiver b2 • A122 – High Band Step Attenuator, V Connector – No •...
Page 421: Table 11-2. Port Module Groups By Instrument Model And Equipped Option
RF Deck Module Replacement Overview 11-14 Finding Module Locations 11-14 Finding Module Locations To locate an RF Deck module location and/or the appropriate removal/replacement procedure, consult any of the following documentation resources in the manual: • In Chapter 2, “Replaceable Parts”: •...
Page 422: Table 11-3. Port Modules - Standard No Options - Rf Deck Bottom Side
11-15 RF Deck Bottom Side - Port Modules - Standard No Options RF Deck Module Replacement Overview 11-15 RF Deck Bottom Side - Port Modules - Standard No Options Introduction This section lists modules by Test Port Group for Standard No Options with the following applicable notes: •...
Page 423 RF Deck Module Replacement Overview 11-15 RF Deck Bottom Side - Port Modules - Standard No Options MS4640A Series VNA MM PN: 10410-00268 Rev. D 11-35...
Page 424: Table 11-4. Port Modules - Option 051 Loops - Rf Deck Bottom Side
11-16 RF Deck Bottom Side - Port Modules - Option 051 RF Deck Module Replacement Overview 11-16 RF Deck Bottom Side - Port Modules - Option 051 Introduction This section lists modules by Test Port Group for Option 051 with the following applicable notes: •...
Page 425: Table 11-5. Port Modules - Option 061 Loops & Two Attenuators - Rf Deck Bottom Side
RF Deck Module Replacement Overview 11-17 RF Deck Bottom Side - Port Modules - Option 061 11-17 RF Deck Bottom Side - Port Modules - Option 061 Introduction This section lists modules by Test Port Group for Option 061 with the following applicable notes: •...
Page 426 11-17 RF Deck Bottom Side - Port Modules - Option 061 RF Deck Module Replacement Overview Table 11-5. Port Modules - Option 061 Loops & Two Attenuators - RF Deck Bottom Side (2 of 2) Module Name - ND Number - PN Test Port (Note 2) (Note 1)
Page 427: Table 11-6. Port Modules - Option 062 Loops & Four Attenuators - Rf Deck Bottom Side
RF Deck Module Replacement Overview 11-18 RF Deck Bottom Side - Port Modules - Option 062 11-18 RF Deck Bottom Side - Port Modules - Option 062 Introduction This section lists modules by Test Port Group for Option 062 with the following applicable notes: •...
Page 428 11-18 RF Deck Bottom Side - Port Modules - Option 062 RF Deck Module Replacement Overview Table 11-6. Port Modules - Option 062 Loops & Four Attenuators - RF Deck Bottom Side (2 of 2) Module Name - ND Number - PN Test Port (Note 2) (Note 1)
Page 429 Chapter 12 — RF Deck Bottom Side A18 Modules and PCB 12-1 Introduction This procedure describes how to remove, replace, and install the modules mounted on or through the A18 RF Control PCB located in the bottom side of the RF Deck. All of the A18 modules and the A18 PCB itself can be serviced while the RF Deck is mounted in the instrument chassis with the instrument positioned upside down.
Page 430: Table 12-1. Rf Deck A18 Modules By Instrument Model Number
MS4647A Reference Module Name 20 GHz 40 GHz 50 GHz 70 GHz Number Replacement and Anritsu Part Numbers VNAs VNAs VNAs VNAs A18 RF Control PCB Assembly (A18 PCB) A18 PCB ND70068 – 61929-3 A108 High Band Transfer Switch (A108 HBTS),...
Page 431: Figure 12-1. Ms4642A 20 Ghz Vna - Rf Deck - A18 Module And Pcb
RF Deck Bottom Side A18 Modules and PCB 12-2 A18 Module Location and Configuration MS4642A A18 RF Control PCB Configuration Each model variant of the A18 PCB configuration is shown below in Figure 12-1, Figure 12-2, and Figure 12-3. A108 MS4642A 20 GHz VNA –...
Page 432: Figure 12-2. Ms4644A 40 Ghz Vna - Rf Deck - A18 Modules And Pcb
12-2 A18 Module Location and Configuration RF Deck Bottom Side A18 Modules and PCB MS4644A A18 RF Control PCB Configuration A112 A108 RF Deck A18 Modules and PCB – MS4644A 40 GHz 1. A18 RF Control PCB Assembly – ND70068 – 61929-3 The A18 modules and PCB are replaceable while the RF 2.
Page 433: Figure 12-3. Ms4645A 50 Ghz And Ms4647A 70 Ghz Vnas - Rf Deck - A18 Pcb Modules
RF Deck Bottom Side A18 Modules and PCB 12-2 A18 Module Location and Configuration MS4645A / MS4647A A18 RF Control PCB Configuration A112 A114 A108 MS4645A 50 GHz and MS4647A 70 GHz VNA – RF 1. A18 – A18 RF Control PCB Assembly (A18 PCB) – Deck –...
Page 434 12-2 A18 Module Location and Configuration RF Deck Bottom Side A18 Modules and PCB MS4647A with Option 080/081 A18 RF Control PCB Configuration The RF Deck Bottom Side A18 RF Control PCB configuration for the MS4647A with Option 080/081 is the same as MS4647A configurations for Standard No Options, Option 051, Option 061, and Option 062 with the addition of the A133 20 - 40 GHz Coupler Module located between the A112 Switched Doubler Module and the A108 V Integrated High Band Transfer Switch.
Page 435 RF Deck Bottom Side A18 Modules and PCB 12-3 Remove A112 SDM – ND70098 – 59772 12-3 Remove A112 SDM – ND70098 – 59772 This procedure describes how to remove the A112 Switched Doubler Module (A112 SDM) located on the RF Deck bottom side within the A18 PCB Assembly.
Page 436 12-3 Remove A112 SDM – ND70098 – 59772 RF Deck Bottom Side A18 Modules and PCB Remove the MS4644A A112 SDM 10. Remove the MS4644A A112 SDM. 11. On the left side of the SDM, remove the semi-rigid coaxial cable and bend it slightly out of the way. 12.
Page 437 RF Deck Bottom Side A18 Modules and PCB 12-4 Prepare Replacement A112 SDM – ND70098 – 59772 12-4 Prepare Replacement A112 SDM – ND70098 – 59772 If replacing the A112 SDM and the signal/power cable harness is still attached to the to-be-replaced A112 SDM, remove it and attach to the replacement A112 SDM.
Page 438 12-5 Install A112 SDM – ND70098 – 59772 RF Deck Bottom Side A18 Modules and PCB 11. On the right side, install the semi-rigid coaxial cable between the A112 SDM and the A108 VITS, and again, align, thread, and torque the two connectors to 8 lbf · in. Take care working around the semi-rigid coaxial cables connected between the A108 HBTS/VITS Caution and the front Test Ports.
Page 439 RF Deck Bottom Side A18 Modules and PCB 12-6 Remove A114 SQM – ND70099 – 60-327 12-6 Remove A114 SQM – ND70099 – 60-327 This procedure describes how to remove the Switched Quadrupler Module (SQM) from the A18 RF Control PCB Assembly which is located on the RF Deck Bottom Side.
Page 440 12-6 Remove A114 SQM – ND70099 – 60-327 RF Deck Bottom Side A18 Modules and PCB 13. Remove the RF connector between A114 SQM and the A108 VITS. The V (m-m) adapter should stay with the A108 VITS. 14. Lift the A114 SQM module, cable, and bracket assembly out of the chassis and either set aside or prepare the replacement module as described below.
Page 441: Figure 12-5. A114 Switched Quadrupler Module (A114 Sqm) And Bracket Assembly
RF Deck Bottom Side A18 Modules and PCB 12-7 Prepare Replacement A114 SQM – ND70099 – 60-327 12-7 Prepare Replacement A114 SQM – ND70099 – 60-327 Use this procedure to prepare a replacement A114 SQM module which involves installing the mounting bracket as shown below in Figure 12-5.
Page 442 12-7 Prepare Replacement A114 SQM – ND70099 – 60-327 RF Deck Bottom Side A18 Modules and PCB Procedure Do not perform any RF Deck procedures unless the instrument is turned off and disconnected from Caution AC Power. Damage to RF components may occur if certain inputs/outputs are removed with live RF power.
Page 443 RF Deck Bottom Side A18 Modules and PCB 12-8 Install A114 SQM – ND70099 – 60-327 12-8 Install A114 SQM – ND70099 – 60-327 Use this procedure to install an existing or replacement A114 SQM module into the A18 RF Control PCB Assembly.
Page 444: Figure 12-6. A108 Hbts/Vits General Removal Procedure
12-9 Remove A108 HBTS/VITS Module – ND70092 or ND70093 RF Deck Bottom Side A18 Modules and PCB 12-9 Remove A108 HBTS/VITS Module – ND70092 or ND70093 Although the HBTS and the VITS share the same A108 Engineering Reference Number, the two modules are different components.
Page 445 RF Deck Bottom Side A18 Modules and PCB 12-9 Remove A108 HBTS/VITS Module – ND70092 or ND70093 Middle 1. RF Deck chassis. 7. Loosen the two connectors holding the semi-rigid coaxial cables to the port group modules. 2. Mounting plates, under some port components, fastened to the RF Deck Chassis.
Page 446: Figure 13-1. Ms4642A - Standard No Options - Test Port Group Modules
12-9 Remove A108 HBTS/VITS Module – ND70092 or ND70093 RF Deck Bottom Side A18 Modules and PCB 8. Depending on the instrument model number, do one of the following steps: • If a MS4642A, skip ahead to Step #9 - Remove the MS4642A A108 HBTS. •...
Page 447 RF Deck Bottom Side A18 Modules and PCB 12-9 Remove A108 HBTS/VITS Module – ND70092 or ND70093 Pull A108 HBTS/VITS Straight Up 26. Gently lift the A108 straight up about 10 mm (~3/8”) until the A108 pins are free from the A18 sockets. 27.
Page 448 12-10 Prepare Replacement A108 HBTS/VITS RF Deck Bottom Side A18 Modules and PCB 12-10 Prepare Replacement A108 HBTS/VITS There are no preparation requirements for either version of the A108 HBTS/VITS. 12-11 Install A108 HBTS/VITS – ND70092 or ND70093 Use this procedure to install an A108 HBTS/VITS after it has been replaced or removed to provide access for another component.
Page 449 RF Deck Bottom Side A18 Modules and PCB 12-11 Install A108 HBTS/VITS – ND70092 or ND70093 Install the A114 SQM 11. If a MS4642A or MS4644A, skip ahead to Step #13 - Next step options for the A108 HBTS/VITS installation. 12.
Page 450: Figure 12-4. Rf Deck Bottom Side Modules - Ms4647A With Option 080/081
12-12 Remove A133 RF Coupler Module – No ND – 72237 RF Deck Bottom Side A18 Modules and PCB 12-12 Remove A133 RF Coupler Module – No ND – 72237 Parts and Applicability • A133 20-40 GHz RF Coupler Module – No ND – 72237 •...
Page 451 RF Deck Bottom Side A18 Modules and PCB 12-14 Install A133 RF Coupler Module – No ND – 72237 12-14 Install A133 RF Coupler Module – No ND – 72237 Use this procedure to install an existing or replacement A113 20-40 GHz module into the A18 RF Control PCB Assembly.
Page 452 12-15 Remove A18 RF Control PCB – ND70068 – 61929-3 RF Deck Bottom Side A18 Modules and PCB 12-15 Remove A18 RF Control PCB – ND70068 – 61929-3 Use this procedure to remove the A18 RF Control PCB Assembly (A18 PCB) from the RF Deck Bottom Side. In general, the only reason to remove the A18 PCB is to replace it.
Page 453: Figure 12-7. A18 Rf Control Pcb Assembly - Nd70068 - 61929-3
RF Deck Bottom Side A18 Modules and PCB 12-15 Remove A18 RF Control PCB – ND70068 – 61929-3 Identification - A18 PCB Connector Locations The figure below (Figure 12-2) shows the A18 PCB connector locations. A108 Figure 12-7. A18 RF Control PCB Assembly – ND70068 – 61929-3 (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 454 12-15 Remove A18 RF Control PCB – ND70068 – 61929-3 RF Deck Bottom Side A18 Modules and PCB 15.A18 PCB J13 – Option 062 only. Ribbon cable to pins Orientation on the A126 Low Band Attenuator Module. The figure above is inverted to show the orientation when 16.A18 PCB J14 –...
Page 455 RF Deck Bottom Side A18 Modules and PCB 12-15 Remove A18 RF Control PCB – ND70068 – 61929-3 4. Remove Inner Top Cover. • See Section 7-6 “Common - Remove Inner Cover” on page 7-13. 5. The Front Panel can stay in place. 6.
Page 456 12-16 Prepare Replacement A18 PCB – ND70068 – 61929-3 RF Deck Bottom Side A18 Modules and PCB 12-16 Prepare Replacement A18 PCB – ND70068 – 61929-3 There are no preparation procedures required for installing a new A18 PCB. 12-17 Install A18 RF Control PCB – ND70068 – 61929-3 This procedure describes how to install the A18 RF Control PCB Assembly (A18 PCB) into RF Deck bottom side.
Page 457 RF Deck Bottom Side A18 Modules and PCB 12-17 Install A18 RF Control PCB – ND70068 – 61929-3 Install MS4644A A108 HBTS and A112 SDM 10. Install the MS4644A A108 HBTS and A112 SDM. 11. Install the A108 HBTS. • See Section 12-11 “Install A108 HBTS/VITS –...
Page 458 12-17 Install A18 RF Control PCB – ND70068 – 61929-3 RF Deck Bottom Side A18 Modules and PCB 12-30 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 459 Chapter 13 — RF Deck Bottom Side Port Modules 13-1 Introduction This chapter describes how to remove, prepare, and replace the port group modules on the RF Deck Bottom Side. Port groups modules are those between the A18 RF Control PCB Assembly located towards the rear of the RF Deck Bottom Side and the front panel.
Page 460 13-1 Introduction RF Deck Bottom Side Port Modules Single Module Port Groups These are port module groups that contain a single high band step attenuator. It can be removed without disassembling other port groups or any components on the A18 RF Control PCB Assembly. Side Attached Port Group Modules These are modules attached to a multi-module port group but can be removed without disassembling the other group modules.
Page 461 RF Deck Bottom Side Port Modules 13-1 Introduction Part Numbers Related to Model Numbers Some of the modules in the port module groups also change depending on whether the instrument is a MS4642A / MS4644A or a MS4645A / MS4647A. The identification, removal, preparation, and installation procedures to use for the RF Deck Port Group Modules depend on three factors of: •...
Page 462 13-2 Chapter Organization RF Deck Bottom Side Port Modules 13-2 Chapter Organization The following chapter organization is used. Single Module Port Groups Single Module Attenuator Port Groups. These are port module groups that contain a single high band step attenuator. It can be removed without disassembling other port groups. •...
Page 463 RF Deck Bottom Side Port Modules 13-2 Chapter Organization Option 062 - Port 2 Source Modules • Section 13-37, “Option 062 - Port 2 Source Modules - Removing” on page 13-109 • Section 13-38, “Option 062 - Port 2 Source Modules - Preparing” on page 13-113 •...
Page 464 13-3 Modules by Instrument and Option RF Deck Bottom Side Port Modules 13-3 Modules by Instrument and Option The four sections following provide figures that show the location of each module. The “skeleton” drawings only show the relevant modules; some assemblies, the chassis, and many cables have been omitted. Standard No Options The drawings for Standard No Options are for the MS4642A, MS4644A, and the MS4645A / MS4647A VNAs.
Page 465 RF Deck Bottom Side Port Modules 13-4 MS4642A - Standard No Options - Port Modules 13-4 MS4642A - Standard No Options - Port Modules A108 A107 A119 A110 A109 A129 A106 A105 A128 A118 A104 Figure 13-1. MS4642A - Standard No Options - Test Port Group Modules (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 466 13-4 MS4642A - Standard No Options - Port Modules RF Deck Bottom Side Port Modules Test Ports (from left to right) Test Port 1 • TP2 – Test Port 2 • A105 – Reference Coupler, 40 GHz – No ND – 66487 •...
Page 467 RF Deck Bottom Side Port Modules 13-5 MS4644A - Standard No Options - Port Modules 13-5 MS4644A - Standard No Options - Port Modules A112 A108 A107 A119 A110 A109 A129 A106 A105 A128 A118 A104 Figure 13-2. MS4644A - Standard No Options - Test Port Group Modules (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 468 13-5 MS4644A - Standard No Options - Port Modules RF Deck Bottom Side Port Modules Test Ports (from left to right) Test Port 1 • TP2 – Test Port 2 • A105 – Reference Coupler, 40 GHz – No ND – 66487 •...
Page 469 RF Deck Bottom Side Port Modules 13-6 MS4645A / MS4647A - Standard No Options - Port Modules 13-6 MS4645A / MS4647A - Standard No Options - Port Modules A112 A114 A108 A119 A110 A107 A129 A109 A106 A105 A128 A118 A104 Figure 13-3.
Page 470 13-6 MS4645A / MS4647A - Standard No Options - Port Modules RF Deck Bottom Side Port Modules Test Ports (from left to right) Test Port 1 • TP2 – Test Port 2 • A105 – Reference Coupler 70 GHz – No ND – 65270 •...
Page 471 RF Deck Bottom Side Port Modules 13-7 MS4645A / MS4647A - Option 051 - Front Panel Loops 13-7 MS4645A / MS4647A - Option 051 - Front Panel Loops A112 A114 A108 A119 A110 A107 A129 A105 A109 P2 b2 A106 P2 a1 A118 A128...
Page 472: Figure 13-4. Ms4645A / Ms4647A - Option 051 - Front Panel Loops
13-7 MS4645A / MS4647A - Option 051 - Front Panel Loops RF Deck Bottom Side Port Modules Test Ports (from left to right) Test Port 2 • P2 b2 – Port 2 Test Receiver b2 – There are no • A119 – Low Band Bridge – ND70078 – 64016 modules connected directly to Port 2 b2.
Page 473: Figure 13-5. Ms4645A / Ms4647A - Option 061 - Loops And Two Attenuators
RF Deck Bottom Side Port Modules 13-8 MS4645A / MS4647A - Option 061 - Loops & Two Attenuators 13-8 MS4645A / MS4647A - Option 061 - Loops & Two Attenuators A112 A114 A108 A110 A109 A119 A107 A123 A105 A129 P2 b2 A118 A106...
Page 474 13-8 MS4645A / MS4647A - Option 061 - Loops & Two Attenuators RF Deck Bottom Side Port Modules Test Ports (from left to right) Test Port 2 • P2 b2 – Port 2 Test Receiver b2 • A119 – Low Band Bridge – ND70078 – 64016 •...
Page 475: Figure 13-6. Ms4645A / Ms4647A - Option 062 - Loops And Four Attenuators
RF Deck Bottom Side Port Modules 13-9 MS4645A / MS4647A - Option 062 - Loops & Four Attenuators 13-9 MS4645A / MS4647A - Option 062 - Loops & Four Attenuators A112 A114 A108 A110 A119 A109 A107 A123 A129 A105 A122 A118 A106...
Page 476 13-9 MS4645A / MS4647A - Option 062 - Loops & Four Attenuators RF Deck Bottom Side Port Modules Test Ports (from left to right) Port 2 Source • P2 b2 – Port 2 Test Receiver b2 • A107 – Reference Coupler 70 GHz – No ND – 65270 •...
Page 477: Figure 13-7. Test Port 2 - Module Group Assembly - A119, A129, And A106
RF Deck Bottom Side Port Modules 13-10 Test Port 2 Module Group Assembly 13-10 Test Port 2 Module Group Assembly The figure below shows the module and bracket assembly. The modules as shown are common to all instrument models. VNAs with Standard No Options attach an A107 to the A129, and an A110 to the A107: •...
Page 478 13-10 Test Port 2 Module Group Assembly RF Deck Bottom Side Port Modules A119 – Low Band Bridge Module 1. A119 Low Band Bridge • MS4642A / MS4644A: A119 Low Band Bridge – ND70078 – 64016 • MS4645A / MS4647A: A119 Low Band Bridge – ND70078 – 64016 2.
Page 479: Figure 13-8. A106 And A107 Reference Coupler Modules And Mounting Brackets
RF Deck Bottom Side Port Modules 13-11 A107 and A105 Reference Module/Bracket Assembly 13-11 A107 and A105 Reference Module/Bracket Assembly The figure below shows the A105/A107 Reference Coupler module and bracket assembly. A107 A105 A107 – Reference Coupler A105 – Reference Coupler 1.
Page 480 13-11 A107 and A105 Reference Module/Bracket Assembly RF Deck Bottom Side Port Modules • On Test Port 1, the A105 module is attached to the A128 module and the A109 is attached to the A105. The A105 is then attached to the A108. On instruments with Option 051: •...
Page 481: Figure 13-9. A110 Port 2 Level Detector And A109 Port 1 Level Detector Modules
RF Deck Bottom Side Port Modules 13-12 A110 Port 2 and A109 Port 1 Level Detector Modules 13-12 A110 Port 2 and A109 Port 1 Level Detector Modules The figure below shows the A110 Port 1 Level Detector Module (at left) and the A109 Port 1 Level Detector Module (at right).
Page 482 13-12 A110 Port 2 and A109 Port 1 Level Detector Modules RF Deck Bottom Side Port Modules On instruments with Standard No Options: • On Test Port 2, the A110 module is attached to the A107 module. The A107 is then attached to the A108. •...
Page 483: Figure 13-10. Test Port 1 Module Group - A118, A128, And A104
RF Deck Bottom Side Port Modules 13-13 Test Port 1 Module Group Assembly 13-13 Test Port 1 Module Group Assembly The figure below shows the basic port group assembly. The modules shown are common to all instrument models. For VNAs with Standard No Options, attach an A105 to the A128, and an A109 to the A105. •...
Page 484 13-13 Test Port 1 Module Group Assembly RF Deck Bottom Side Port Modules A118 – Low Band Bridge Module 1. A118 Low Band Bridge • MS4642A / MS4644A: A118 Low Band Bridge – ND70078 – 64016 • MS4645A / MS4647A: A118 Low Band Bridge – ND70078 – 64016 2.
Page 485: Table 13-1. Ms4642A / Ms4644A - Replacement Procedures - By Option, Port, And Module
RF Deck Bottom Side Port Modules 13-14 Identifying Port Module Removal and Installation Procedures 13-14 Identifying Port Module Removal and Installation Procedures Use the two tables below to identify your instrument model, the installed option, and then the port group and module.
Page 486 13-14 Identifying Port Module Removal and Installation Procedures RF Deck Bottom Side Port Modules Table 13-1. MS4642A / MS4644A - Replacement Procedures - By Option, Port, and Module (2 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A119 Low Band Bridge –...
Page 487 RF Deck Bottom Side Port Modules 13-14 Identifying Port Module Removal and Installation Procedures Table 13-1. MS4642A / MS4644A - Replacement Procedures - By Option, Port, and Module (3 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A123 High Band Step Attenuator, Port 2 b2, •...
Page 488 13-14 Identifying Port Module Removal and Installation Procedures RF Deck Bottom Side Port Modules Table 13-1. MS4642A / MS4644A - Replacement Procedures - By Option, Port, and Module (4 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A123 High Band Step Attenuator, Port 2 b2, •...
Page 489 RF Deck Bottom Side Port Modules 13-14 Identifying Port Module Removal and Installation Procedures Table 13-1. MS4642A / MS4644A - Replacement Procedures - By Option, Port, and Module (5 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A118 Low Band Bridge –...
Page 490: Table 13-2. Ms4645A / Ms4647A - Replacement Procedures - By Option, Port, And Module
13-14 Identifying Port Module Removal and Installation Procedures RF Deck Bottom Side Port Modules MS4645A / MS4647A Port Group Modules and Procedures For each MS4645A / MS4647A instrument option, the table below (Table 13-2) lists the port group, the modules that comprise it, and then cross references to the removal and installation procedures. In general, the modules are listed in sequence going from the A18 RF Control PCB Assembly towards the RF Deck Front Panel.
Page 491 RF Deck Bottom Side Port Modules 13-14 Identifying Port Module Removal and Installation Procedures Table 13-2. MS4645A / MS4647A - Replacement Procedures - By Option, Port, and Module (2 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A119 Low Band Bridge –...
Page 492 13-14 Identifying Port Module Removal and Installation Procedures RF Deck Bottom Side Port Modules Table 13-2. MS4645A / MS4647A - Replacement Procedures - By Option, Port, and Module (3 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A123 High Band Step Attenuator, Port 2 b2, •...
Page 493 RF Deck Bottom Side Port Modules 13-14 Identifying Port Module Removal and Installation Procedures Table 13-2. MS4645A / MS4647A - Replacement Procedures - By Option, Port, and Module (4 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A123 High Band Step Attenuator, Port 2 b2, •...
Page 494 13-14 Identifying Port Module Removal and Installation Procedures RF Deck Bottom Side Port Modules Table 13-2. MS4645A / MS4647A - Replacement Procedures - By Option, Port, and Module (5 of 5) Model Port & Option Group ERN - Module Name - PN Procedures A118 Low Band Bridge –...
Page 495 RF Deck Bottom Side Port Modules 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing Use this procedure to remove and replace an attenuator module from a single component port group. In all cases, the High Band Step Attenuators are attached to Port 2 b2 (A123) or Port 1 b1 (A121) and are only encountered in instruments equipped with Option 061 or Option 062: •...
Page 496: Figure 13-11. Option 061 - A123 Port 2 B2 And A121 Port 1 Source Attenuators
13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing RF Deck Bottom Side Port Modules A123 P2 b2 P2 a2 P2 a2 P2 Src P2 Src P1 a1 1 a1 P1 b1 Figure 13-11. Option 061 - A123 Port 2 b2 and A121 Port 1 Source Attenuators (1 of 2) 13-38 PN: 10410-00268 Rev.
Page 497 RF Deck Bottom Side Port Modules 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing Option 061 – Front Panel Loops and Two Attenuators Removing the A123 Port 2 Test Receiver b2 • The module configuration for Option 061. Attenuator •...
Page 498: Figure 13-12. Option 062 - A123, A122, A121, And A120 Attenuators
13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing RF Deck Bottom Side Port Modules Identification - Option 062 A123, A122, A121, and A120 Attenuators The figure below (Figure 13-12) shows the location of the Port 2 b2 (A123), Port 2 Source (A122), Port 1 Source (A121), and Port 1 b1 (A120) Attenuators that are equipped on instruments with Option 062.
Page 499 RF Deck Bottom Side Port Modules 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing Option 062 – Front Panel Loops and Four Attenuators • – The module configuration for Option 062. • The A108, A112, and A114 configuration shown here is for an MS4645A / MS4647A. •...
Page 500: Table 13-3. High Band Attenuator Reference And Procedure Cross References
13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing RF Deck Bottom Side Port Modules Parts and Applicability The attenuators are only equipped in instruments equipped with Option 061 or Option 062. The port they are installed on depends on the instrument option. The attenuator mounting brackets are installed either on the left side or the right side of the attenuator as shown Figure 13-13, “High Band Step Attenuator - Bracket Orientation and Assembly”...
Page 501 RF Deck Bottom Side Port Modules 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing Table 13-3. High Band Attenuator Reference and Procedure Cross References (2 of 4) Model Bracket A18 PCB Option Port ERN - Name - PN Side Connector Procedures...
Page 502 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing RF Deck Bottom Side Port Modules Table 13-3. High Band Attenuator Reference and Procedure Cross References (3 of 4) Model Bracket A18 PCB Option Port ERN - Name - PN Side Connector Procedures...
Page 503 RF Deck Bottom Side Port Modules 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing Table 13-3. High Band Attenuator Reference and Procedure Cross References (4 of 4) Model Bracket A18 PCB Option Port ERN - Name - PN Side Connector Procedures...
Page 504 13-15 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Removing RF Deck Bottom Side Port Modules 2. Remove Outer Cover. • See Section 7-5 “Common - Remove Outer Cover” on page 7-10. 3. Remove Inner Top Cover. • See Section 7-6 “Common - Remove Inner Cover”...
Page 505 RF Deck Bottom Side Port Modules 13-16 Option 061/062 - Attenuators - Preparing 13-16 Option 061/062 - Attenuators - Preparing Use this procedure to prepare any RF Deck Bottom Side attenuator for installation. The attenuators are equipped on the following ports with the following options: •...
Page 506: Figure 13-13. High Band Step Attenuator - Bracket Orientation And Assembly
13-16 Option 061/062 - Attenuators - Preparing RF Deck Bottom Side Port Modules A123 P2b2 A120 P1b1 Figure 13-13.High Band Step Attenuator - Bracket Orientation and Assembly (1 of 2) 13-48 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 507 RF Deck Bottom Side Port Modules 13-16 Option 061/062 - Attenuators - Preparing 1. A123 – High Band Step Attenuator: • The Attenuator connector J2 connects to the front panel left side Port 2 b2. • The Attenuator ribbon cable connects to the A18 PCB J4. •...
Page 508 13-16 Option 061/062 - Attenuators - Preparing RF Deck Bottom Side Port Modules Separate Attenuator and Bracket 5. Remove the two (2) pan head Phillips 4×40 × 0.187” attenuator-to-bracket screws. 6. Set the to-be-replaced attenuator aside. Install Bracket 7. Install the replacement attenuator module into its bracket, again observing the orientation listed in Step #3 above.
Page 509 RF Deck Bottom Side Port Modules 13-17 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Installing 13-17 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Installing Use this procedure to install the Option 061/062 High Band Step Attenuators into Port 2 b2 or Port 1 b1. This procedure is only for instruments equipped with Option 061 or Option 062 and only for Port 2 b2 and Port 1 b1.
Page 510 13-17 Option 061/062 - Port 2 b2/Port 1 b1 Attenuators - Installing RF Deck Bottom Side Port Modules Check Connections 8. Check that all cable connections are correctly made and fully seated in their connectors. 9. Check that all RF connections are correctly aligned, threaded, and torqued. Next Steps 10.
Page 511: Figure 13-14. Side-Attached Modules - Ms4642A - Standard No Options
RF Deck Bottom Side Port Modules 13-18 Side-Attached Modules - Standard/All Options - Removing 13-18 Side-Attached Modules - Standard/All Options - Removing Use this procedure to remove “side-attached” modules from multi-module port groups regardless of location and regardless if the port group is connected to the A108 HBTS/VITS. The general procedure is to remove any attached semi-rigid coaxial cables, disconnect any signal/power cables (if present) from the A18 RF Control PCB Assembly, loosen any bracket-to-chassis hardware (if present), and finally loosen and then remove RF connections between the to-be-replaced module and the rest of port group...
Page 512 13-18 Side-Attached Modules - Standard/All Options - Removing RF Deck Bottom Side Port Modules A108 A119 A107 A110 A109 A129 A106 A105 A128 A118 A104 3. A109 Port 1 Level Detector, 40 GHz, K Connector – MS4642A VNA with Standard No Options ND70095 –...
Page 513 RF Deck Bottom Side Port Modules 13-18 Side-Attached Modules - Standard/All Options - Removing A112 A108 A107 A119 A110 A109 A129 A106 A105 A128 A118 A104 3. A109 Port 1 Level Detector, K Connector, 40 GHz – MS4644A VNA with Standard No Options ND70095 –...
Page 514 13-18 Side-Attached Modules - Standard/All Options - Removing RF Deck Bottom Side Port Modules A112 A114 A108 A119 A110 A107 A129 A109 A106 A105 TP 2 A128 A118 A104 1. A110 – Port 2 Level Detector, V Connector, 70 GHz – MS4645A / MS4647A VNA with Standard No Options ND70096 –...
Page 515 RF Deck Bottom Side Port Modules 13-18 Side-Attached Modules - Standard/All Options - Removing A112 A114 A108 A110 A119 A107 A109 A123 A129 A105 A122 A118 A121 P2 b2 A106 A128 P2 a2 A120 P2 Src A104 P1 Src TP 2 P1 a1 P1 b1 Figure 13-17.Side-Attached Modules - MS4640A - Option 051/061/062 - MS4647A Shown (1 of 2)
Page 516 13-18 Side-Attached Modules - Standard/All Options - Removing RF Deck Bottom Side Port Modules Common Side Attached Module Configuration for All Models MS4645A / MS4647A VNA with Option 062 shown. Use this figure to identify side-attached modules for all instrument models equipped with Option 051, 061, or 062. Between the Front Panel and A108 HBTS/VITS, the module Engineering Reference Number identification and mechanical configuration is the same for all instrument models.
Page 517: Figure 13-17. Side-Attached Modules - Ms4640A - Option 051/061/062 - Ms4647A Shown
RF Deck Bottom Side Port Modules 13-18 Side-Attached Modules - Standard/All Options - Removing • See Section 7-5 “Common - Remove Outer Cover” on page 7-10. 3. Remove Inner Top Cover. • See Section 7-6 “Common - Remove Inner Cover” on page 7-13.
Page 518 13-19 Side-Attached Modules - Preparing RF Deck Bottom Side Port Modules 13-19 Side-Attached Modules - Preparing Use this procedure to prepare a replacement side-attached module. Parts and Applicability Section 13-18, “Side-Attached Modules - Standard/All Options - Removing” on page 13-53 above for a listing of the modules that use this procedure.
Page 519 RF Deck Bottom Side Port Modules 13-20 Side-Attached Modules - Installing 13-20 Side-Attached Modules - Installing Use this procedure to install a side-attached module to an RF Deck Bottom Side port module group. Parts and Applicability Section 13-18, “Side-Attached Modules - Standard/All Options - Removing” on page 13-53 above for a listing of the modules that use this procedure.
Page 520 13-21 Standard No Options - Test Port 2 Modules - Removing RF Deck Bottom Side Port Modules 13-21 Standard No Options - Test Port 2 Modules - Removing Use this procedure to access one or more modules within the Test Port 2 port module group for VNAs equipped with Standard No Options.
Page 521: Figure 13-18. Identification - Standard No Options - Test Port 2 Modules
RF Deck Bottom Side Port Modules 13-21 Standard No Options - Test Port 2 Modules - Removing Identification A112 A114 A108 A119 A110 A107 A129 A109 A106 A105 A128 A118 A104 Figure 13-18.Identification - Standard No Options - Test Port 2 Modules (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 522 13-21 Standard No Options - Test Port 2 Modules - Removing RF Deck Bottom Side Port Modules Test Port 2 Port Modules - Standard No Options • Shown for MS4645A / MS4647A with Standard No Options. • Mechanical configuration is the same for MS4642A / MS4644A. RF Control Modules •...
Page 523 RF Deck Bottom Side Port Modules 13-21 Standard No Options - Test Port 2 Modules - Removing Procedure Use this procedure to disassemble and remove a module from the Test Port 2 module group for both MS4642A / MS4644A and MS4645A / MS4647A VNAs equipped with Standard No Options. Disassemble the port group until the to-be-replaced module is available and then exit the procedure and start the preparation procedure in the second section following.
Page 524 13-21 Standard No Options - Test Port 2 Modules - Removing RF Deck Bottom Side Port Modules • MS4645A / MS4647A: A107 Reference Coupler, 70 GHz – No ND – 65270 11. Use a 5/16” torque end wrench set to 8 lbf · in to loosen the RF connection between the A107 and the A129.
Page 525 RF Deck Bottom Side Port Modules 13-21 Standard No Options - Test Port 2 Modules - Removing • Recommended is a Craftsman 009-44594 or equivalent torque wrench set to 15 lbf · ft with a 13/16” deep socket on a 3/8” drive. 25.
Page 526 13-22 Standard No Options - Test Port 2 Modules - Installing RF Deck Bottom Side Port Modules 13-22 Standard No Options - Test Port 2 Modules - Installing Use these procedures to install one or more components of the Test Port 2 port module group and instrument equipped with Standard No Options.
Page 527 RF Deck Bottom Side Port Modules 13-22 Standard No Options - Test Port 2 Modules - Installing • MS4642A / MS4644A: A129 Diplexer/Bias Tee Module, Port 2, 40 GHz – ND73941 – 74377 • MS4645A / MS4647A: A129 Diplexer/Bias Tee Module, Port 2, 70 GHz – ND73943 – 74278 13.
Page 528 13-22 Standard No Options - Test Port 2 Modules - Installing RF Deck Bottom Side Port Modules 29. Make sure the A110 harnesses are correctly and fully inserted into their sockets on the A18 RF Control PCB Assembly. 30. Torque the RF connection between the A110 and the A107 to 8 lbf · in. •...
Page 529 RF Deck Bottom Side Port Modules 13-23 Standard No Options - Test Port 1 Modules - Removing 13-23 Standard No Options - Test Port 1 Modules - Removing Use this procedure to access one or more modules within the Test Port 1 port module group for VNAs equipped with Standard No Options.
Page 530: Figure 13-19.Identification - Standard No Options - Test Port 1 Modules
13-23 Standard No Options - Test Port 1 Modules - Removing RF Deck Bottom Side Port Modules Identification A108 A119 A110 A107 A129 A106 Test Port 1 Port Modules - Standard No Options • Shown for MS4645A / MS4647A with Standard No Options. •...
Page 531 RF Deck Bottom Side Port Modules 13-23 Standard No Options - Test Port 1 Modules - Removing Parts and Applicability Use this procedure to remove and replace the following modules: • MS4642A / MS4644A: A105 Reference Coupler, 40 GHz – No ND – 66487 •...
Page 532 13-23 Standard No Options - Test Port 1 Modules - Removing RF Deck Bottom Side Port Modules • MS4642A / MS4644A: A110 Port 2 Level Detector, 40 GHz, K Connector – ND70094 – 67417-1 • MS4645A / MS4647A: A110 Port 2 Level Detector, V Connector, 70 GHz – ND70096 – 67389-1 •...
Page 533 RF Deck Bottom Side Port Modules 13-23 Standard No Options - Test Port 1 Modules - Removing 20. Remove the module-to-bracket hardware holding the A104 to the bracket. 21. Use a 5/16” torque end wrench set to 8 lbf · in to loosen the RF connection between the A128 and the A104 and then remove the connection.
Page 534 13-24 Standard No Options - Test Port 1 Modules - Installing RF Deck Bottom Side Port Modules 13-24 Standard No Options - Test Port 1 Modules - Installing Use these procedures to install one or more components of the Test Port 1 port module group in an instrument equipped with Standard No Options.
Page 535 RF Deck Bottom Side Port Modules 13-24 Standard No Options - Test Port 1 Modules - Installing • MS4642A / MS4644A: A128 Diplexer/Bias Tee Module, Port 1, 40 GHz – ND73940 – 74277 • MS4645A / MS4647A: A128 Diplexer/Bias Tee Module, Port 1, 70 GHz – ND73942 – 74278 13.
Page 536 13-24 Standard No Options - Test Port 1 Modules - Installing RF Deck Bottom Side Port Modules Final Checks 31. Check that all cables are correctly routed and firmly seated in their connectors. 32. Check that all semi-rigid coaxial cables are correctly aligned, threaded, and torqued. Next Steps 33.
Page 537 RF Deck Bottom Side Port Modules 13-25 Option 051/061/062 - Test Port 2 Modules - Removing 13-25 Option 051/061/062 - Test Port 2 Modules - Removing Use this procedure to access one or more modules within the Test Port 2 port module group on instruments equipped with Option 051, 061, or 062.
Page 538: Figure 13-20.Identification - Option 051/061/062 - Test Port 2 Modules
13-25 Option 051/061/062 - Test Port 2 Modules - Removing RF Deck Bottom Side Port Modules Identification A119 A129 P2 b2 A106 P2 a1 TP 2 P1 Src P1 Sr P1 a1 P1 a1 Test Port 2 Port Modules - Option 051, Option 061, and Option 062 •...
Page 539 RF Deck Bottom Side Port Modules 13-25 Option 051/061/062 - Test Port 2 Modules - Removing Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 540 13-25 Option 051/061/062 - Test Port 2 Modules - Removing RF Deck Bottom Side Port Modules • MS4645A / MS4647A: A106 Test Coupler, 70 GHz – No ND – 66245 • MS4642A / MS4644A: A129 Diplexer/Bias Tee Module, Port 2, 40 GHz – ND73941 – 74277 •...
Page 541 RF Deck Bottom Side Port Modules 13-26 Option 051/061/062 - Test Port 2 Modules - Installing 13-26 Option 051/061/062 - Test Port 2 Modules - Installing Use this procedure to install one or more components of the Test Port 2 port module group in instruments equipped with Option 051, 061, or 062.
Page 542 13-26 Option 051/061/062 - Test Port 2 Modules - Installing RF Deck Bottom Side Port Modules • MS4642A / MS4644A: Test Port Adapter K Connector – No ND – 34YK50C • MS4645A / MS4647A: Test Port Adapter V Connector – No ND – 34YV50C 12.
Page 543 RF Deck Bottom Side Port Modules 13-27 Option 051 - Port 1 Source Modules - Removing 13-27 Option 051 - Port 1 Source Modules - Removing Use this procedure to remove and replace the A105 module in the Port 1 Source (P1 Src) port module group for instruments equipped with Option 051.
Page 544: Figure 13-21.Identification - Option 051 - Port 1 Source Modules
13-27 Option 051 - Port 1 Source Modules - Removing RF Deck Bottom Side Port Modules Identification A112 A114 A114 A108 A119 A105 A109 P2 b2 P2 b P2 a1 P2 a TP 2 P1 Src P1 Src P1 a1 P1 a1 Port 1 Source Modules - Option 051 Port 1 Source Modules...
Page 545 RF Deck Bottom Side Port Modules 13-27 Option 051 - Port 1 Source Modules - Removing Parts and Applicability Use this procedure to remove and replace the following Port 1 Source modules: • MS4642A / MS4644A: A105 Reference Coupler, 40 GHz – No ND – 66487 •...
Page 546 13-27 Option 051 - Port 1 Source Modules - Removing RF Deck Bottom Side Port Modules Disconnect the A109 9. Do not use this procedure to remove or replace the A109. Instead use the following procedures to remove, prepare, and replace the A109: •...
Page 547 RF Deck Bottom Side Port Modules 13-28 Option 051 - Port 1 Source Modules - Installing 13-28 Option 051 - Port 1 Source Modules - Installing Use this procedure to replace the following Port 1 Source modules: • MS4642A / MS4644A: A105 Reference Coupler, 40 GHz – No ND – 66487 •...
Page 548 13-28 Option 051 - Port 1 Source Modules - Installing RF Deck Bottom Side Port Modules 16. Tighten the A105 module-to-bracket mounting hardware. 17. Tighten the bracket-to-chassis mounting hardware. Final Checks 18. Check that all cables are correctly routed and firmly seated in their connectors. 19.
Page 549 RF Deck Bottom Side Port Modules 13-29 Option 051/061/062 - Test Port 1 Modules - Removing 13-29 Option 051/061/062 - Test Port 1 Modules - Removing Use this procedure to service the modules in the Test Port 1 port group on instruments equipped with: •...
Page 550: Figure 13-22.Identification - Option 051/061/062 - Test Port 1 Modules
13-29 Option 051/061/062 - Test Port 1 Modules - Removing RF Deck Bottom Side Port Modules Identification A112 A114 A114 A119 P2 b2 P2 b P2 a1 P2 a A118 A128 TP 2 A104 P1 Src P1 Src P1 a1 P1 b1 Test Port 1 Modules - Option 051, 061, 062 •...
Page 551 RF Deck Bottom Side Port Modules 13-29 Option 051/061/062 - Test Port 1 Modules - Removing Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 552 13-29 Option 051/061/062 - Test Port 1 Modules - Removing RF Deck Bottom Side Port Modules Remove the A128 11. Remove the bracket-to-chassis hardware holding the A128 and the A104 to their shared bracket. • MS4642A / MS4644A: A128 Diplexer/Bias Tee Module, Port 1, 40 GHz – ND73940 – 74277 •...
Page 553 RF Deck Bottom Side Port Modules 13-30 Option 051/061/062 - Test Port 1 Modules - Installing 13-30 Option 051/061/062 - Test Port 1 Modules - Installing Use this procedure to install one or more components of the Test Port 1 port module group in instruments equipped with Option 051, 061, or 062.
Page 554 13-30 Option 051/061/062 - Test Port 1 Modules - Installing RF Deck Bottom Side Port Modules Install the Test Port 1 Test Port Adapter 10. Install the Test Port Adapter on Test Port 1. Carefully place it into position, making sure the center pin is correctly aligned.
Page 555 RF Deck Bottom Side Port Modules 13-31 Option 051/061 - Port 2 Source Modules - Removing 13-31 Option 051/061 - Port 2 Source Modules - Removing Use this procedure to service the modules in the Port 2 Source (P2 Src) port group on instruments equipped with: •...
Page 556: Figure 13-23.Identification - Option 051/061 - Port 2 Source Modules
13-31 Option 051/061 - Port 2 Source Modules - Removing RF Deck Bottom Side Port Modules Identification A112 A114 A114 A108 A119 A110 A107 P2 b2 P2 b P2 a1 P2 a TP 2 P1 Src P1 Src P1 a1 P1 a1 Port 2 Source Modules - Option 051, 061, 062 •...
Page 557 RF Deck Bottom Side Port Modules 13-31 Option 051/061 - Port 2 Source Modules - Removing Parts and Applicability • MS4642A / MS4644A: A107 Reference Coupler, 40 GHz – No ND – 66487 • MS4645A / MS4647A: A107 Reference Coupler, 70 GHz – No ND – 65270 •...
Page 558 13-32 Option 051/061 - Port 2 Source Modules - Preparing RF Deck Bottom Side Port Modules Remove the A108 HBTS/VITS 7. Remove the A108 HBTS/VITS, following the procedure steps in Section 12-9 “Remove A108 HBTS/VITS Module – ND70092 or ND70093” on page 12-16 above in Chapter •...
Page 559 RF Deck Bottom Side Port Modules 13-33 Option 051/061 - Port 2 Source Modules - Installing 13-33 Option 051/061 - Port 2 Source Modules - Installing Use this procedure to install modules in the Port 2 Source (P2 Src) port group on instruments equipped with: •...
Page 560 13-33 Option 051/061 - Port 2 Source Modules - Installing RF Deck Bottom Side Port Modules Install the A108 12. Install the A108 HBTS/VITS back into its socket on the A18 PCB by carefully following the procedure in Section 12-11, “Install A108 HBTS/VITS – ND70092 or ND70093” on page 12-20 above.
Page 561: Figure 13-24.Identification - Option 061 - Port 1 Source Modules
RF Deck Bottom Side Port Modules 13-34 Option 061/062 - Port 1 Source Modules - Removing 13-34 Option 061/062 - Port 1 Source Modules - Removing For instruments equipped with Option 061 (Front Panel Loops and Two Attenuators) or with Option 062 (Front Panel Loops and Four Attenuators), use this procedure to service the modules in the Port 1 Source module group.
Page 562 13-34 Option 061/062 - Port 1 Source Modules - Removing RF Deck Bottom Side Port Modules Parts and Applicability • MS4642A / MS4644A: A105 Reference Coupler, 40 GHz – No ND – 66487 • MS4645A / MS4647A: A105 Reference Coupler, 70 GHz – No ND – 65270 •...
Page 563 RF Deck Bottom Side Port Modules 13-34 Option 061/062 - Port 1 Source Modules - Removing • MS4642A / MS4644A: A105 Reference Coupler, 40 GHz – No ND – 66487 • MS4645A / MS4647A: A105 Reference Coupler, 70 GHz – No ND – 65270 •...
Page 564 13-35 Option 061/062 - Port 1 Source Modules - Preparing RF Deck Bottom Side Port Modules 13-35 Option 061/062 - Port 1 Source Modules - Preparing Use this procedure to prepare the A105 or A121 modules in the Option 061 Port 1 Source module group. Preparing the A105 The only preparation required is to remove any protective covers from the A105 ports.
Page 565 RF Deck Bottom Side Port Modules 13-36 Option 061/062 - Port 1 Source Modules - Installing 13-36 Option 061/062 - Port 1 Source Modules - Installing Use this procedure to install replacement modules in the Port 1 Source (P1 Src) port module group. Identification Figure 13-24, “Identification - Option 061 - Port 1 Source Modules”...
Page 566 13-36 Option 061/062 - Port 1 Source Modules - Installing RF Deck Bottom Side Port Modules Install the A105 11. Install the A105. • MS4642A / MS4644A: A105 Reference Coupler, 40 GHz – No ND – 66487 • MS4645A / MS4647A: A105 Reference Coupler, 70 GHz – No ND – 65270 12.
Page 567: Figure 13-25.Identification - Option 062 - Port 2 Source Modules
RF Deck Bottom Side Port Modules 13-37 Option 062 - Port 2 Source Modules - Removing 13-37 Option 062 - Port 2 Source Modules - Removing For instruments equipped with Option 062 (Front Panel Loops and Four Attenuators), use this procedure to service the modules in the Port 2 Source module group.
Page 568 13-37 Option 062 - Port 2 Source Modules - Removing RF Deck Bottom Side Port Modules Port 2 Source Modules - Option 062 • Shown for MS4645A / MS4647A with Option 062 • Mechanical configuration for this port module group is the same for MS4642A / MS4644A with Option 062. Port 2 Source Modules •...
Page 569 RF Deck Bottom Side Port Modules 13-37 Option 062 - Port 2 Source Modules - Removing Locate the Installed Option and Port Group 6. Use Figure 13-25, “Identification - Option 062 - Port 2 Source Modules” on page 13-109 above to locate the required port group modules.
Page 570 13-37 Option 062 - Port 2 Source Modules - Removing RF Deck Bottom Side Port Modules Next Steps 16. The next step depends on the removal objective: • If only the A107 is to be replaced, skip ahead to Section 13-38, “Option 062 - Port 2 Source Modules - Preparing”...
Page 571 RF Deck Bottom Side Port Modules 13-38 Option 062 - Port 2 Source Modules - Preparing 13-38 Option 062 - Port 2 Source Modules - Preparing Use this procedure to prepare the A107 or A122 modules in the Option 062 Port 2 Source module group. Preparing the A107 The only preparation required is to remove any protective covers from the A107 ports.
Page 572 13-39 Option 062 - Port 2 Source Modules - Installing RF Deck Bottom Side Port Modules 13-39 Option 062 - Port 2 Source Modules - Installing For instruments equipped with Option 062 (Front Panel Loops and Four Attenuators), use this procedure to install replacement modules in the Port 2 Source (P2 Src) port module group.
Page 573 RF Deck Bottom Side Port Modules 13-39 Option 062 - Port 2 Source Modules - Installing Install the A107 11. Install the A107. • MS4642A / MS4644A: A107 Reference Coupler, 40 GHz – No ND – 66487 • MS4645A / MS4647A: A107 Reference Coupler, 70 GHz – No ND – 65270 12.
Page 574 13-40 RF Deck Bottom Side - Port Group Modules - Completion RF Deck Bottom Side Port Modules 13-40 RF Deck Bottom Side - Port Group Modules - Completion Use this procedure to complete the port module replacement and installation used in the procedures above. Procedure Signal/Power Cables 1.
Page 575 Chapter 14 — RF Deck Removal and Installation 14-1 Introduction The RF Deck itself is not a replaceable component. This procedure describes how to remove the RF Deck from the instrument chassis in order to service RF Deck Top Side components or to access deeper dwelling assemblies.
Page 576: Figure 14-1. Typical Rf Deck Removed - Option 061 Loops & Two Attenuators Shown
14-2 Typical RF Deck Assembly – RF Deck Top Side RF Deck Removal and Installation • Section 19-10 “Install the Motherboard 1 PCB Assembly” on page 19-20 14-2 Typical RF Deck Assembly – RF Deck Top Side The exact components on the RF Deck Top Side vary depending on the Phase, instrument serial number, model, and equipped options.
Page 577 RF Deck Removal and Installation 14-2 Typical RF Deck Assembly – RF Deck Top Side Removed RF Deck Assembly equipped with Option RSampler/LO Distribution Module Assembly 061 – Front Panel Loops & Two Attenuators. The Sampler/LO Distribution Module (SLODM) The deck must be removed to service the modules Assembly consists of multiple components that vary below.
Page 578 14-3 Remove the RF Deck RF Deck Removal and Installation 14-3 Remove the RF Deck Use this procedure to remove the RF Deck. The deck itself is not a replaceable part. Applicability and Recommended Fixture • This procedure is for all models with any combination of options. •...
Page 579: Figure 14-2. Rf Deck Removal/Installation - Analog Modules And Semi-Rigid Coaxial Cables
RF Deck Removal and Installation 14-3 Remove the RF Deck Remove the A13 Analog Module Cables 11. See Figure 14-2 below. In the right side Analog PCB bay, on the middle A13 module, remove the two semi-rigid coaxial (SRC) cables at A13 module connectors J4 and A13 J6. These are the first two connectors from the left.
Page 580 14-3 Remove the RF Deck RF Deck Removal and Installation Orientation A15 Cables 1. Rear Panel Left to right, from instrument front to rear: 2. Left Side Chassis Plate • J3 – SRC – Connection depends on equipped option. 3. RF Deck Front Panel – Instrument Front Panel •...
Page 581: Figure 14-3. Rf Deck Top Side - Sampler/Lo Distribution Module - Mcx Coaxial Cables
RF Deck Removal and Installation 14-3 Remove the RF Deck Disconnect Sampler/LO Distribution Module Assembly MCX Coaxial Cables 15. See Figure 14-3 below. A130 A100 A101 A111 A102 A103 Figure 14-3. RF Deck Top Side - Sampler/LO Distribution Module - MCX Coaxial Cables (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 582 14-3 Remove the RF Deck RF Deck Removal and Installation For RF Deck removal, it is easiest to disconnect the MCX SLODM - Continued coaxial cables from the analog module assemblies and • A100 Sampler Module – ND70082 – 64180 – Mounts then remove the cables with the RF Deck.
Page 583: Figure 14-4. Rf Deck Bottom Side - Cables And Mounting Hardware
RF Deck Removal and Installation 14-3 Remove the RF Deck Disconnect Signal/Power Cables 19. Position instrument upside down. See Figure 14-4 below A112 A114 A108 TP 2 Figure 14-4. RF Deck Bottom Side - Cables and Mounting Hardware (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 584 14-3 Remove the RF Deck RF Deck Removal and Installation RF Deck Bottom Cable Connections and Mounting Cables Hardware. 1. Disconnect ribbon cable from A18 PCB connector Typical MS4647A Standard No Options shown. J18. Cable routes to MB2 PCB connector P42. A18 PCB and Modules 2.
Page 585 RF Deck Removal and Installation 14-3 Remove the RF Deck Attach Fixture 30. If servicing modules on the RF Deck, attach two (2) T-3545 fixtures to the RF Deck using the four (4) pan head Phillips M4 × 10 mm screws removed above. •...
Page 586 14-4 Install the RF Deck RF Deck Removal and Installation 14-4 Install the RF Deck Use this procedure to install the RF Deck after either replacing a hidden RF Module or to access another deeper dwelling component. Applicability and Recommended Fixture •...
Page 587 RF Deck Removal and Installation 14-4 Install the RF Deck 17. The four (4) MCX Sampler Module coaxial cables should still be attached to the appropriate Sampler Module. If the cables were not removed, skip ahead to Step #18 below. If they were removed, proceed with these sub-steps: a.
Page 588 14-4 Install the RF Deck RF Deck Removal and Installation 14-14 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 589 Chapter 15 — RF Deck Top Side Modules 15-1 Introduction These procedures describe how to replace RF Deck Top Side modules once the deck has been removed from the instrument. This chapter contains the following procedures: RF Deck Top Right Side Modules •...
Page 590 15-2 Top Side Right Modules Overview RF Deck Top Side Modules 15-2 Top Side Right Modules Overview Note These procedures must be performed with the RF Deck removed from the instrument chassis. Use this procedure to replace top side modules after the deck has been removed from the instrument chassis. The procedures in the next sections are applicable to all MS4640A models with any combination of options.
Page 591: Figure 15-1. Rf Deck Top Right Side Modules - A113, A115, A116, And A117
RF Deck Top Side Modules 15-2 Top Side Right Modules Overview A113 A115 A116 A117 Figure 15-1. RF Deck Top Right Side Modules – A113, A115, A116, and A117 (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev. D 15-3...
Page 592 15-2 Top Side Right Modules Overview RF Deck Top Side Modules RF Deck A116 and A117 Low Band Bridge Modules • A116 – Low Band Bridge Module – ND70079 – 64016 1. RF Deck Top Side. The Front Panel and the RF Deck •...
Page 593 RF Deck Top Side Modules 15-3 Replace the A113 5-20 GHz Doubler Module 15-3 Replace the A113 5-20 GHz Doubler Module Use this procedure to remove and then install a replacement A113 5-20 GHz Doubler Module. See Figure 15-1 on page 15-3 above for orientation and module location.
Page 594: Figure 15-2. A113 5-20 Ghz Doubler Module - Nd70080 - 64920 - Detail
15-3 Replace the A113 5-20 GHz Doubler Module RF Deck Top Side Modules Identification Figure 15-2 below for port location. Rear A115 Front 1. Top View 5. Side View 2. J1 Connector 6. Three-Quarter View 3. J2 Connector 7. Rear panel 4.
Page 595 RF Deck Top Side Modules 15-3 Replace the A113 5-20 GHz Doubler Module Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9. 2.
Page 596 15-3 Replace the A113 5-20 GHz Doubler Module RF Deck Top Side Modules 19. From the RF Deck Bottom Side, insert the four (4) pan head Phillips M3 × 8 mm screws into the A113 5-20 GHz Doubler Module. When all are correctly threaded, tighten. Connect Coaxial Cables 20.
Page 597: Figure 15-3. A115 Low Band Switch Module - Nd70079 - 64016
RF Deck Top Side Modules 15-4 Replace the A115 Low Band Transfer Switch Module 15-4 Replace the A115 Low Band Transfer Switch Module Use this procedure to remove and then install a replacement A115 Low Band Transfer Switch module (A115 LBTS). See Figure 15-1 on page 15-3 above for general orientation and module location.
Page 598 15-4 Replace the A115 Low Band Transfer Switch Module RF Deck Top Side Modules Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 599 RF Deck Top Side Modules 15-4 Replace the A115 Low Band Transfer Switch Module 17. Remove the A115 Low Band Transfer Switch Module from the chassis. Prepare the Replacement A115 Low Band Transfer Switch Module 18. If the ribbon cable is still attached on the to-be-replaced A115 Low Band Transfer Switch Module, remove it and install on the replacement A115 Low Band Transfer Switch Module.
Page 600: Figure 15-4. A116/A117 Low Band Bridge Module - Nd70078 - 64016 - Detail
15-5 Replace the A116/A117 Low Band Bridge Module RF Deck Top Side Modules 15-5 Replace the A116/A117 Low Band Bridge Module Use this procedure to replace either the inner A116 Low Band Bridge Module or the outer A117 Low Band Bridge Module.
Page 601 RF Deck Top Side Modules 15-5 Replace the A116/A117 Low Band Bridge Module Orientation Low Band Bridge Ports and Connectors 3. Low Band Bridge Module JS/J2 port – Towards the 1. A116 Low Band Bridge Module (inner) and A117 Low front panel.
Page 602 15-5 Replace the A116/A117 Low Band Bridge Module RF Deck Top Side Modules Disconnect the A116/A117 Low Band Bridge Module 11. See Figure 15-4, “A116/A117 Low Band Bridge Module – ND70078 – 64016 – Detail” on page 15-12 above for the A116/A117 Low Band Bridge Module connector orientation. Remove the A116/A117 Low Band Bridge Module JB/J3 Coaxial Cable 12.
Page 603 RF Deck Top Side Modules 15-5 Replace the A116/A117 Low Band Bridge Module Install the Front Panel 30. Position the instrument right side up. 31. Apply blocking under the front of the instrument. 32. Install the Front Panel assembly. • See Section 10-6 “Install the Phase 1 Front Panel Assembly”...
Page 604: Table 15-1. Rf Deck - Attenuator Modules - Configuration Summary
15-6 RF Deck Attenuator Overview RF Deck Top Side Modules 15-6 RF Deck Attenuator Overview The table below provides a reference for all equipped instrument attenuators. Attenuators are located on the RF Deck on both the Top Side Chassis and in the Bottom Side Chassis. The attenuators are equipped if Option 061 or Option 062 is selected.
Page 605 RF Deck Top Side Modules 15-6 RF Deck Attenuator Overview Table 15-1. RF Deck - Attenuator Modules - Configuration Summary (2 of 2) RF Deck Side Mounting Location Model Cable Harness Orientation A18 PCB Number Option ERN Name RPN Bracket Orientation Connection •...
Page 606 15-7 Replace the Low Band Source Attenuator RF Deck Top Side Modules 15-7 Replace the Low Band Source Attenuator Use this procedure to replace the RF Deck Top Side A124, A125, A126, or A127 Low Band Attenuators. In general, the only reason to remove a Low Band Attenuator is to replace it. The removal and installation procedure for each module is the same.
Page 607: Figure 15-5. Rf Deck Top Side Modules - Option 061 - Loops & Two Attenuators
RF Deck Top Side Modules 15-7 Replace the Low Band Source Attenuator Identification - Option 061 Low Band Attenuators - RF Deck Top Side As shown in Figure 15-5 below, only the A125 and A127 attenuators are installed on instruments with Option 061.
Page 608: Figure 15-6. Rf Deck Top Side Modules - Option 062 - Loops & Four Attenuators
15-7 Replace the Low Band Source Attenuator RF Deck Top Side Modules Identification - Option 062 Low Band Attenuators - RF Deck Top Side As shown in Figure 15-6 below, on instruments equipped with Option 062, all four attenuators are installed. A125 A124 A113...
Page 609 (four attenuators). The replacement ND part number changes depending on the option and the installed location. All attenuators are the same physical/electrical unit and the same Anritsu Part Number 3-2000-1502. For instruments with Option 061 - Front Loops and Two Attenuators: •...
Page 610 15-7 Replace the Low Band Source Attenuator RF Deck Top Side Modules 8. Remove the RF Deck. • See Section 14-3 “Remove the RF Deck” on page 14-4. 9. Add two (2) T3545 RF Deck Fixtures to the RF Deck chassis. •...
Page 611: Figure 15-7. Low Band Step Attenuator, Bracket, And Harness Assembly
RF Deck Top Side Modules 15-7 Replace the Low Band Source Attenuator A124 A125 A126 A127 Yellow Orange Blue Brown Green Figure 15-7. Low Band Step Attenuator, Bracket, and Harness Assembly (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev. D 15-23...
Page 612 15-7 Replace the Low Band Source Attenuator RF Deck Top Side Modules Attenuator Module Attenuator Hardware and Harness 1. Low Band DC to 2500 MHz Programmable Step The bracket and related hardware must be transferred to Attenuator Assembly: the replacement attenuator. The replacement attenuator •...
Page 613 RF Deck Top Side Modules 15-7 Replace the Low Band Source Attenuator 27. Install the RF Deck into the instrument chassis. • See Section 14-4 “Install the RF Deck” on page 14-12. Install the Front Panel 28. Position the instrument right side up. 29.
Page 614 15-8 SLODM Overview RF Deck Top Side Modules 15-8 SLODM Overview Introduction to the SLODM Assembly The Sampler/LO Distribution Module (SLODM) Assembly Part Number is for configuration purposes only and is not a replacement part. The only reason to remove and disassemble the SLODM is to replace one or more of its modules. Other than differing cable connections, the removal and replace procedure for each variant is the same.
Page 615: Table 15-2. Slodm Assembly Component Variants
RF Deck Top Side Modules 15-8 SLODM Overview Table 15-2. SLODM Assembly Component Variants (1 of 2) Assy PN / Rev A111 LO Distribution Module – ND70081 – 66270 or ND73193 – 66270 Connector Position and Number VNA Model Variant Reference Figure Options VNA S/N Left A111 J2...
Page 616 15-8 SLODM Overview RF Deck Top Side Modules Table 15-2. SLODM Assembly Component Variants (2 of 2) Assy PN / Rev A111 LO Distribution Module – ND70081 – 66270 or ND73193 – 66270 Connector Position and Number VNA Model Variant Reference Figure Options VNA S/N Left A111 J2...
Page 617: Figure 15-8. Slodm Assembly - 62084 B - Components
RF Deck Top Side Modules 15-9 Identification of SLODM Assembly Variants 15-9 Identification of SLODM Assembly Variants The figures below show the five (5) SLODM Assembly variants and their components. SLODM Assembly – 62084 B – Components A111 A130 A100 A101 A102 A103...
Page 618 15-9 Identification of SLODM Assembly Variants RF Deck Top Side Modules SLODM Assembly – 62084 Revision B A130 LO Coupler Module Connectors • J1 – Top For VNAs with S/N 1051172 and below, except S/N • J2 – Bottom 1034144. The 62084 B SLODM assembly consists of the •...
Page 619: Figure 15-9. Slodm Assembly - 62084 B - Exploded View
RF Deck Top Side Modules 15-9 Identification of SLODM Assembly Variants SLODM Assembly – 62084 B – Exploded View All SLODM Assembly variants are identical mechanically. Use the figure below as a guide to a SLODM disassembly and reassembly. A130 A100 A101 A111...
Page 620 15-9 Identification of SLODM Assembly Variants RF Deck Top Side Modules SLODM Assembly – 62084 Revision B A130 LO Coupler Module Connectors • J1 – Top For VNAs with S/N 1051172 and below, except S/N • J2 – Bottom 1034144. The 62084 B SLODM assembly consists of the •...
Page 621: Figure 15-10. Slodm Assembly - 62084 C - Components
RF Deck Top Side Modules 15-9 Identification of SLODM Assembly Variants SLODM Assembly – 62084 C – Components A130 A111 A130 Front A111 A130 Bottom A100 A101 A102 A100 A100 A103 A101 A101 A100 A102 A102 A101 A103 A103 A102 Rear A103 Front...
Page 622 15-9 Identification of SLODM Assembly Variants RF Deck Top Side Modules SLODM Assembly – 62084 Revision C A130 LO Coupler Module Connectors • J1 – Top For VNAs with S/N 1034144, S/N 1051173 and above to • J2 – Bottom S/N 1120219 and above to S/N 1120219.
Page 623: Figure 15-11. Slodm Assembly - 73231 A - Components - Ms4647A Option 080/081
RF Deck Top Side Modules 15-9 Identification of SLODM Assembly Variants SLODM Assembly – 73231 A – Components A130 A131 A131 Front A132 A111 A132 A130 Front A111 Front A111 A130 A111 A111 A111 A131 A130 A132 Bottom A100 A101 A102 A100 A103...
Page 624 15-9 Identification of SLODM Assembly Variants RF Deck Top Side Modules SLODM Assembly – 73231 Revision A A130 LO Coupler Module Connectors • J1 – Top For MS4647A VNAs equipped with Option 080/081 and • J2 – Bottom S/N 1120219 and lower. The 73231 A SLODM assembly •...
Page 625: Figure 15-12. Slodm Assembly - 62084 D - Components
RF Deck Top Side Modules 15-9 Identification of SLODM Assembly Variants SLODM Assembly – 62084 D – Components A111 A111 A100 A101 A102 A100 A103 A101 A102 A100 A103 A101 A102 A100 A103 A101 A102 A103 Figure 15-12.SLODM Assembly – 62084 D – Components (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 626 15-9 Identification of SLODM Assembly Variants RF Deck Top Side Modules SLODM Assembly – 62084 Revision D A111 LO Distribution Module Assembly For VNAs with S/N 1120220 and higher, the 62084 D The following connectors are located on the A111 LO SLODM assembly consists of the following five (5) Distribution Module Assembly –...
Page 627: Figure 15-13. Slodm Assembly - 73231 B - Components - Ms4647A Option 080/081
RF Deck Top Side Modules 15-9 Identification of SLODM Assembly Variants SLODM Assembly – 73231 B – Components A131 A132 A111 A131 A132 Front A131 A131 A132 A132 Bottom A100 A101 A102 A100 A103 A101 A102 A100 A103 A101 Rear A102 A100 A103...
Page 628 15-9 Identification of SLODM Assembly Variants RF Deck Top Side Modules SLODM Assembly – 73231 Revision B A131-A132 LO Coupler Module Connectors • J1 – Top For MS4647A VNAs equipped with Option 080/081 and • J2 – Bottom S/N 1120220 and higher. The 73231 B SLODM assembly •...
Page 629 RF Deck Top Side Modules 15-10 Remove the Sampler/LO Distribution Module Assembly 15-10 Remove the Sampler/LO Distribution Module Assembly Use this procedure to remove the Sampler/LO Distribution Module (SLODM) Assembly. The assembly itself is not a replaceable part, but consists of multiple components which are replaceable parts. This general removal procedure is the same for any VNA Phase, any model, with any combination of options.
Page 630 15-10 Remove the Sampler/LO Distribution Module Assembly RF Deck Top Side Modules 15. Remove the SLODM Assembly while carefully feeding the ribbon cable through from the RF Deck Bottom Side to the Top Side. 16. As shown in Figure 15-14 below, the SLODM Assembly is held in place two screws from the RF Deck Bottom Side and two screws from the RF Deck Top Side.
Page 631 RF Deck Top Side Modules 15-10 Remove the Sampler/LO Distribution Module Assembly Orientation RF Deck Bottom Side 5. Ribbon cable between the A111 LO Distribution Phase 1 VNA SLODM Assembly shown. Mechanically, Module Assembly and the bottom side A18 RF all SLODM Assemblies are identical.
Page 632 15-11 Remove the A130, A131, and/or A132 LO Coupler Modules RF Deck Top Side Modules 15-11 Remove the A130, A131, and/or A132 LO Coupler Modules Use this procedure to remove the A130, A131, and/or the A132 LO Coupler Modules. Remove the LO Coupler Modules to either replace them or to provide access to the underlying A100-A103 Sampler Modules or the A111 LO Distribution Module.
Page 633: Figure 15-15.A130 Lo Coupler Module - Nd70083 - 68848 - Detail
RF Deck Top Side Modules 15-11 Remove the A130, A131, and/or A132 LO Coupler Modules Identification – A130 LO Coupler Module • See Figure 15-15 below for the A130 module ports and connectors. A130 Front A100 A111 Orientation A130 LO Coupler Module Connectors 3.
Page 634: Figure 15-16.A131-A132 Lo Coupler Module - No Nd - 70685 - Detail
15-11 Remove the A130, A131, and/or A132 LO Coupler Modules RF Deck Top Side Modules Identification – A131 and A132 LO Coupler Modules Figure 15-15 below for the A131 and A132 module ports and connectors. Front A100 A101 Rear Front Rear Orientation A131-A132 LO Coupler Module Connectors...
Page 635 RF Deck Top Side Modules 15-11 Remove the A130, A131, and/or A132 LO Coupler Modules Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 636 15-11 Remove the A130, A131, and/or A132 LO Coupler Modules RF Deck Top Side Modules 15. Note the orientation of each LO Coupler Module relative to the front edge of the SLODM Assembly. Hold the A130 LO Coupler Module and remove the connector between the A100 or A101 and the A130 LO Coupler Module.
Page 637 RF Deck Top Side Modules 15-12 Replace the A130, A131, and/or A132 LO Coupler Modules 15-12 Replace the A130, A131, and/or A132 LO Coupler Modules Use this procedure to remove the A130, A131, and/or the A132 LO Coupler Modules. Remove the LO Coupler Modules to either replace them or to provide access to the underlying A100-A103 Sampler Modules or the A111 LO Distribution Module.
Page 638 15-12 Replace the A130, A131, and/or A132 LO Coupler Modules RF Deck Top Side Modules • Figure 15-10, “SLODM Assembly – 62084 C – Components” on page 15-33 above. • Figure 15-11, “SLODM Assembly – 73231 A – Components – MS4647A Option 080/081” on page 15-35 above.
Page 639 • This module is used on all instrument models with any combination of options. • Each instrument contains four (4) sampler modules with different Engineering Reference Numbers. The replacement part numbers and Anritsu part numbers are the same. All of the parts are identical electrically and mechanically.
Page 640: Figure 15-17.A100, A101, A102, A103 Sampler Module - Nd70082 - 64180 - Detail
15-13 Remove the A100, A101, A102, and/or A103 Sampler Modules RF Deck Top Side Modules Identification – A100, A101, A102, A103 Figure 15-17 below for the module ports and connectors. Rear A100 A101 Front A102 A103 Front Rear Sampler Module Sampler Module Connectors •...
Page 641 RF Deck Top Side Modules 15-13 Remove the A100, A101, A102, and/or A103 Sampler Modules Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 642 15-13 Remove the A100, A101, A102, and/or A103 Sampler Modules RF Deck Top Side Modules 15. Once loose, use finger pressure to remove the connection and set aside the A130, A131, and/or the A132 LO Coupler Module. Remove the Any or All of the Sampler Modules 16.
Page 643 • This module is used on all instrument models with any combination of options. • Each instrument contains four (4) sampler modules with different Engineering Reference Numbers. The replacement part numbers and Anritsu part numbers are the same. All of the parts are identical electrically and mechanically.
Page 644 15-14 Install the A100, A101, A102, and/or the A103 Sampler Module RF Deck Top Side Modules • Figure 15-13, “SLODM Assembly – 73231 B – Components – MS4647A Option 080/081” on page 15-39 above. Position 1 and the A100 Sampler Module 5.
Page 645 RF Deck Top Side Modules 15-15 Replace the A111 LO Distribution Module – ND73193 – 72440 15-15 Replace the A111 LO Distribution Module – ND73193 – 72440 Use this procedure to replace the A111 LO Distribution Module – ND73193 – 72440. If replacing the earlier and obsolete A111 –...
Page 646: Figure 15-18.A111 Lo Distribution Module Assembly - Nd73193 - 72440 - Detail
15-15 Replace the A111 LO Distribution Module – ND73193 – 72440 RF Deck Top Side Modules Identification – A111 – ND73193 – 72440 Figure 15-18 below for the module ports and connectors. A111 A100 A101 A102 A103 Orientation A100-A103 Sampler Modules •...
Page 647 RF Deck Top Side Modules 15-15 Replace the A111 LO Distribution Module – ND73193 – 72440 Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 648 15-15 Replace the A111 LO Distribution Module – ND73193 – 72440 RF Deck Top Side Modules • See Section 15-14, “Install the A100, A101, A102, and/or the A103 Sampler Module” on page 15-55 above. Install the LO Coupler Modules 20. If present, and not yet installed, add the required LO Coupler Modules. •...
Page 649 RF Deck Top Side Modules 15-16 Replace the Obsolete A111 LO Distribution Module – ND70081 – 66270 15-16 Replace the Obsolete A111 LO Distribution Module – ND70081 – 66270 Use this procedure to replace the obsolete A111 LO Distribution Module – ND70081 – 66270. If replacing the current A111 –...
Page 650: Figure 15-19. A111 Lo Distribution Module Assembly - Nd70081 - 66270 - Detail
15-16 Replace the Obsolete A111 LO Distribution Module – ND70081 – 66270 RF Deck Top Side Modules Identification – A111 – ND70081 – 66270 See above for the Figure 15-18, “A111 LO Distribution Module Assembly – ND73193 – 72440 – Detail” on page 15-58 above for the replacement module ports and connectors.
Page 651 RF Deck Top Side Modules 15-16 Replace the Obsolete A111 LO Distribution Module – ND70081 – 66270 Orientation A100-A103 Sampler Modules • End view at left. Three-quarter view at right. • A100 Sampler Module – Mounting position 1 and socket on A111. Depending on the VNA S/N and Replacement Part equipped options, the A100 top J2 connects to either: The obsolete ND70081 –...
Page 652 15-16 Replace the Obsolete A111 LO Distribution Module – ND70081 – 66270 RF Deck Top Side Modules Procedure Common Procedures 1. Prepare work area, work surface, and observe safety issues. • See Section 7-4 “Common - Prepare Work Area and Safety” on page 7-9.
Page 653 RF Deck Top Side Modules 15-16 Replace the Obsolete A111 LO Distribution Module – ND70081 – 66270 17. The installation procedure is the reverse of the sections above. 18. Make sure that any LO Coupler Modules that were mounted on top of the Sampler Modules have been removed.
Page 654: Figure 15-20.Installing The Sampler/Lo Distribution Module Assembly
15-17 Install the SLODM onto the RF Deck RF Deck Top Side Modules 15-17 Install the SLODM onto the RF Deck Use this procedure to install the Sampler/LO Distribution Module (SLODM) Assembly into the RF Deck Top Side chassis after replacing one or more of the SLODM Assembly components. The figure below is repeated for orientation.
Page 655 RF Deck Top Side Modules 15-17 Install the SLODM onto the RF Deck Prior Procedures Use the procedures in the sections above to replace any of the Sampler/LO distribution Module Assembly components as required: • Section 15-12, “Replace the A130, A131, and/or A132 LO Coupler Modules” on page 15-49 above.
Page 656 15-17 Install the SLODM onto the RF Deck RF Deck Top Side Modules 16. Apply blocking under the front of the instrument. 17. Install the Front Panel assembly. • See Section 10-6 “Install the Phase 1 Front Panel Assembly” on page 10-19.
Page 657 Chapter 16 — Rear Panel Components 16-1 Introduction This chapter describes removing the Rear Panel and then servicing the underlying A17 Rear Panel PCB Assembly and the Rear Panel (Analog) Fan Assembly. It also describes removing the Rear Panel to provide access to other internal components.
Page 658 16-3 Remove the Rear Panel Assembly Rear Panel Components 16-3 Remove the Rear Panel Assembly Use this procedure to remove the Rear Panel to provide access for internal parts. The Rear Panel is not a replacement part but does mount the Rear Panel cooling fan for the Analog PCB Bay and the A17 Rear Panel PCB Assembly.
Page 659 Rear Panel Components 16-3 Remove the Rear Panel Assembly Identification Use the figures below to identify the relevant parts and components. • Figure 16-1, “Rear Panel Assembly – Outside – Panel Attached with Covers Off” on page 16-3 shows the general location of components with the rear panel installed.
Page 660 16-3 Remove the Rear Panel Assembly Rear Panel Components Orientation The instrument chassis viewed from the Rear Panel with the covers off. Rear Panel 1. A17 Rear Panel PCB located here on inside of Rear Panel. 2. Rear Panel Logo Sub Plate removed. The sub plate is fastened using 14 pan head Phillips M3 × 6 mm screws. It can be removed with the covers on or off.
Page 661 Rear Panel Components 16-3 Remove the Rear Panel Assembly Rear Panel Motherboard 2 PCB Left Side Figure 16-2. Rear Panel Assembly – Inside – A17 PCB Cable Connections (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev. D 16-5...
Page 662 16-3 Remove the Rear Panel Assembly Rear Panel Components Orientation The instrument is viewed from the left side with the side plate removed for clarity. The rear panel is to the left. A17 Rear Panel PCB Assembly 1. 1 – A17 Rear Panel PCB – ND70067 – 61924-3 •...
Page 663 Rear Panel Components 16-3 Remove the Rear Panel Assembly Figure 16-3. Rear Panel Assembly – Outside – A17 PCB and Fan Mounting Hardware (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev. D 16-7...
Page 664 16-3 Remove the Rear Panel Assembly Rear Panel Components Orientation 1. Rear Panel Assembly viewed from outside. A17 Rear Panel Assembly PCB 2. A17 Rear Panel PCB Assembly – ND70067 – 61924-3 – PCB mounted here (not shown) on inside of Rear Panel Assembly.
Page 665 Rear Panel Components 16-3 Remove the Rear Panel Assembly Figure 16-4. Rear Panel Assembly – Inside View – Cable Connections (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev. D 16-9...
Page 666 16-3 Remove the Rear Panel Assembly Rear Panel Components Orientation 1. A17 Rear Panel PCB Assembly – ND70067 – 61924-3 2. Rear Panel Chassis Plate A17 PCB - MCX to BNC Connections 3. A17 Rear Panel PCB Assembly P8 MCX Connector – Connects to Trigger Out BNC 4.
Page 667 Rear Panel Components 16-3 Remove the Rear Panel Assembly • See Section 7-6 “Common - Remove Inner Cover” on page 7-13. 5. The Front Panel can stay attached to the instrument chassis. • Best practices recommend removing the Front Panel Loops if equipped. 1.
Page 668 16-3 Remove the Rear Panel Assembly Rear Panel Components Remove Rear Panel Sub Plate 6. Remove and set aside the 14 pan head Phillips M3 × 6 mm screw holding the silk-screened Rear Panel Sub Plate in place. 7. Gently pull off the Rear Panel Sub Plate and set aside. Note Be careful handling the Sub Plate and do not scratch its surface.
Page 669 Rear Panel Components 16-3 Remove the Rear Panel Assembly Remove the Rear Panel Assembly 8. Remove the Rear Panel Loops and set aside. 9. Remove the four (4) outer flat head Phillips M3 × 6 mm screws that hold the AC Module Housing to the Rear Panel.
Page 670 16-3 Remove the Rear Panel Assembly Rear Panel Components Orientation Chassis viewed from the left rear corner of the instrument. Components 1. A17 Rear Panel PCB Assembly (not shown) located on inside of the Rear Panel Chassis Plate. 2. Rear Panel Chassis plate with silk-screened Rear Panel Sub Plate removed. 3.
Page 671 Rear Panel Components 16-4 Remove the A17 Rear Panel PCB Assembly 16-4 Remove the A17 Rear Panel PCB Assembly Use this procedure to remove the A17 Rear Panel PCB Assembly. In general, the only reason to remove the A17 PCB is to replace it. Part and Applicability •...
Page 672 16-4 Remove the A17 Rear Panel PCB Assembly Rear Panel Components 14. To replace the Rear Panel Fan Assembly, skip ahead to Section 16-7, “Remove the Rear Panel Fan Assembly” on page 16-19. 15. To replace another assembly, skip to any of the following chapters: •...
Page 673: Figure 16-1. Rear Panel Assembly - Outside - Panel Attached With Covers Off
Rear Panel Components 16-5 Prepare the Replacement A17 Rear Panel PCB Assembly 16-5 Prepare the Replacement A17 Rear Panel PCB Assembly There are no replaceable components on the A17 PCB. If any of the ribbon cables came out with the to-be-replaced PCB, remove them and install on the replacement A17 PCB.
Page 674 16-6 Install the A17 Rear Panel PCB Assembly Rear Panel Components 9. Connect the External Trigger coaxial cable to the top A17 PCB P11 MCX Connector. Connect the Ribbon Cables to the A17 PCB 10. Attach the longer ribbon cable to the upper A17 PCB P1 connector. This cable will route to Motherboard 2 PCB connector P17 when the Rear Panel is installed.
Page 675 Rear Panel Components 16-7 Remove the Rear Panel Fan Assembly 16-7 Remove the Rear Panel Fan Assembly Use this procedure to remove the Rear Panel Fan Assembly. In general, the only reason to remove the fan is to replace it. Part and Applicability •...
Page 676 16-8 Preparing the Replacement Rear Panel Fan Rear Panel Components 16-8 Preparing the Replacement Rear Panel Fan Use this procedure to install the threaded spring clips and ground cable to the replacement fan. Procedure 1. At each corner of the fan, remove the four (4) threaded spring clips. 2.
Page 677 Rear Panel Components 16-9 Install the Rear Panel Fan Assembly 16-9 Install the Rear Panel Fan Assembly Use this procedure to install a replacement Rear Panel Fan Assembly. Procedure 1. Place the fan loosely in position and route the power cable through the center cable clip. Hardware Sequence 2.
Page 678 16-10 Installing the Rear Panel Assembly Rear Panel Components 16-10 Installing the Rear Panel Assembly Use this procedure to install the Rear Panel Assembly after either replacing the Rear Panel Fan, the A17 Rear Panel PCB Assembly, or after replacing an internal component. Identification Use the figures in the sections above to identify the relevant parts and components.
Page 679 Chapter 17 — Power Supply Module 17-1 Introduction This procedure describes how to remove the Power Supply Module from the instrument chassis, and if required, replace it, and finally install it. Use this procedure to either replace the module, or to remove it from the chassis in order to service the deeper dwelling components: •...
Page 680: Figure 17-1. Power Supply Module Location And Orientation - Phase 1 Vna Shown
17-2 Power Supply Module Overview Power Supply Module Identification - Location The Power Supply Module Assembly and its three major cable harnesses are mounted in the Digital PCB Section near the left front of the instrument chassis as shown in Figure 17-1 below.
Page 681 Power Supply Module 17-2 Power Supply Module Overview Front Panel – Phase 1 Shown SLODM Assembly 1. Front Panel 7. Sampler/LO Distribution Module (SLODM) Assembly • Note that the Phase 2 Front Panel has three (3) • The SLODM components vary depending on the cables that are not included with the replacement instrument S/N and the equipped options.
Page 682: Figure 17-2. Phase 1 Power Supply Module Assembly - Nd70072 - 62088
17-2 Power Supply Module Overview Power Supply Module Identification – Phase 1 Power Supply Module – ND70072 – 62088 The Phase 1 Power Supply Module has three attached cable harnesses for power, power control, and the AC Line Input modules. The power harness and control harness (not shown in Figure 17-2 below) go to the Motherboard 2 PCB...
Page 683 Power Supply Module 17-2 Power Supply Module Overview 1. Power Supply Module Assembly – ND70072 – 62088 7. AC Module Mounting Bracket – With Cable 3-72058. 8. Four (4) flat head Phillips M3 x 8 mm screws. 2. Power control wiring harness (not shown here) to •...
Page 684: Figure 17-3. Phase 1 Power Supply Module Wiring Harness Connections
17-2 Power Supply Module Overview Power Supply Module The main harness connections are to the front end of the Power Supply Module and are connected via pan head Phillips screws that hold the 30 color-coded harness wires with ring lugs. The replacement module comes with the harness installed.
Page 685 Power Supply Module 17-2 Power Supply Module Overview MS4640A Series VNA MM PN: 10410-00268 Rev. D 17-7...
Page 686: Figure 17-4. Phase 2 Power Supply Module Assembly - Nd73933 - 71995
17-2 Power Supply Module Overview Power Supply Module Identification – Phase 2 Power Supply Module – ND73933 – 71995 The Phase 2 Power Supply Module has four (4) attached cable harnesses for power, power control, 3.3 VDC sense, and the AC Line Input modules. The power harness, control harness (not shown in Figure 17-2 below) go to the Phase 2 Motherboard 2 PCB...
Page 687 Power Supply Module 17-2 Power Supply Module Overview 1. Phase 2 Power Supply Module – ND73933 – 71995 7. AC Input Power Supply Module (inside bracket). – With Cables 3-71996 and 3-67873. • Connections to the Power Supply Module are shown below in Figure 17-6.
Page 688: Figure 17-5. Phase 2 Power Supply Module Wiring Harness Connections
17-2 Power Supply Module Overview Power Supply Module The main harness connections are to the front end of the Phase 2 Power Supply Module and are connected via pan head Phillips screws that hold the 30 color-coded harness wires with ring lugs. The replacement module comes with the 3-71996 and 3-67873 harnesses installed.
Page 689 Power Supply Module 17-2 Power Supply Module Overview 1. Power Supply Module Assembly – ND73933 – 71995 4. 3.3 Volt Sense Cable – 3-67873 – with Cables 3-71996 and 3-67873. • Connects to the P62 3.3 VD Sense connector on the front of the MB2 PCB.
Page 690: Figure 17-6. Power Supply Module Assembly - Ac Line Module Connections
17-2 Power Supply Module Overview Power Supply Module Identification - AC Line Input Module Connections The AC Line Input Module connects via three (3) color coded wires with ring lugs to a barrier strip connector on the rear of the Power Supply Module. The AC Line Input Module, the AC Module Mounting Bracket, and the AC Module Harness comes with the replacement Power Supply Module Brown Blue...
Page 691 Power Supply Module 17-3 Remove the Power Supply Module 17-3 Remove the Power Supply Module Parts and Applicability • Power Supply Module – ND70072 – 62088 • For all VNAs with S/N 1132241 and lower. • Includes Power Supply Cable Assembly – 3-70258 •...
Page 692: Figure 17-7. Location Of Left Side Screw And Rear Panel Screws
17-3 Remove the Power Supply Module Power Supply Module Remove the Left Side Chassis Panel 11. Remove the chassis left side plate mounting screws as shown in Figure 17-7. 1. Rear Panel, removed here for clarity. 5. On side plate, seven (7) flat head Phillips M4 × 8 mm screws holding the Side Plate to the instrument 2.
Page 693 Power Supply Module 17-3 Remove the Power Supply Module 13. On the instrument left side, remove the seven (7) flat head Phillips M4 × 8 mm screws holding the Side Plate to the instrument chassis. 14. On the instrument left side, remove the seven (7) flat head Phillips M4 × 10 mm screws that hold the side plate to the Digital PCB Fan Bracket Assembly and to the Power Supply Module Mounting Bracket.
Page 694 17-3 Remove the Power Supply Module Power Supply Module Disconnect Power Cables from Motherboard 2 PCB Assembly 17. At the instrument front, disconnect the Power Supply Module cables. The cables vary with the Power Supply Module version. 18. All Power Supply Versions: Remove the main power supply harness 30-pin connector from the Motherboard 2 (MB2) PCB Assembly P94 connector.
Page 695 Power Supply Module 17-4 Prepare the Replacement Power Supply Module 17-4 Prepare the Replacement Power Supply Module Use this procedure to move the Power Supply Mounting Bracket and related hardware from the to-be-replaced Power Supply Module and transfer it to the new replacement module. Procedure 1.
Page 696 17-5 Install the Power Supply Module Power Supply Module 17-5 Install the Power Supply Module Use this procedure to install the Power Supply Module into the instrument chassis if it was removed for replacement or to access a deeper dwelling component. Procedure Assumptions 1.
Page 697 Power Supply Module 17-5 Install the Power Supply Module Completion Procedures 16. Add blocking under the front of the instrument. 17. Install the Front Panel Assembly. • Section 10-6, “Install the Phase 1 Front Panel Assembly” on page 10-19 18. If removed, install the digital PCBs. •...
Page 698 17-5 Install the Power Supply Module Power Supply Module 17-20 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 699 Chapter 18 — Digital PCB Fan Assembly 18-1 Introduction This chapter describes how to remove and replace the fan that cools the Digital PCB Bay. This fan is termed the “Digital PCB Fan Bracket and Card Guide Assembly” and consists of the fan, brackets, card guides, and related mounting hardware.
Page 700 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Use this procedure to access and remove the Digital PCB Fan Bracket/Card Guide Assembly. Part and Applicability • Digital PCB Fan Assembly – ND70073 – 62095-1 •...
Page 701: Figure 18-1. Digital Pcb Fan Assembly - Nd70073 - 62095-1 - Detail
Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Identification The figure below shows the fan and harness. Black 1. Digital PCB Fan Assembly 3. Attached harness 2-pin header connector. • Connects to the Motherboard 2 PCB Assembly 2.
Page 702: Figure 18-2. Digital Pcb Fan Assembly - Chassis Location - Phase 1 Example
18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly Procedure Orientation 1. Use Figure 18-2 below to identify the Digital PCB Fan Assembly in the chassis top view and locate and identify the Digital PCB Fan Assembly, related brackets, and mounting hardware. Digital Fan ND70073 - 62095-1 Rear Panel...
Page 703 Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly 6. Digital PCB Fan Assembly – ND70073 – 62095-1 – Orientation Mounted in the Digital Section, with 165 mm cable 1. Rear Panel – Located at the top of this drawing. harness and plug.
Page 704: Figure 18-3. Digital Pcb Fan Assembly - Major Component Location - Rear View
18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly 2. Use Figure 18-3 below to identify the chassis left side plate and the power supply module which must be removed to access the digital PCB fan and bracket assembly. Front Panel Right Side Analog PCBs...
Page 705 Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Orientation A17 Rear Panel PCB Assembly Connectors The instrument chassis viewed from the Rear Panel with 4. Serial Connector port with two (2) 4×40 × 0.187 M-F the covers off.
Page 706 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly 12. For Phase 1 VNAs with S/N 1132241 and lower, remove the A6 cPCI-PMC Adapter Card PCB Assembly – ND70063 – 3-2000-1485. Mounted on the A6 PCB are the: •...
Page 707 Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Remove Analog Modules 14. From the instrument right side, disconnect, pull out, and set aside the analog module assemblies. • See Section 9-13, “Remove Right Side Analog Modules” on page 9-27.
Page 708: Figure 18-4. Digital Pcb Fan Assembly - Removing Rear Panel Sub Plate
18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly Remove the Rear Panel Sub Plate 23. Remove the Rear Panel Sub Plate. The Sub Plate is the outer rear panel with the silk-screened port information. 1. Rear Panel 4.
Page 709: Figure 18-5. Remove Or Install The Rear Panel Assembly
Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Remove the Rear Panel Assembly 26. Remove the four (4) outer flat head Phillips M3 × 6 mm screws that hold the AC Module Housing to the Rear Panel.
Page 710 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly Orientation A17 Rear Panel PCB Connectors (top to bottom) Chassis viewed from the left rear corner of the 4. Serial (10101) Port DB connector and its two (2) instrument.
Page 711: Figure 18-6. Remove Or Install The Instrument Chassis Left Side Plate
Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Remove the Chassis Left Side Plate 30. Once the Rear Panel Assembly is removed, use Figure 18-6 below for orientation on the removing the instrument chassis left side plate. 1.
Page 712: Figure 18-7. Remove Or Install The Power Supply Module Assembly
18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly Remove the Power Supply Module 31. Use Figure 18-7 below for orientation on removing the Power Supply Module. 6. Ground post on the chassis center plate with ring lug Orientation cables from the Power Supply Module and the AC 1.
Page 713: Figure 18-8. Disconnect Or Connect The Power Supply Module Ground Cables
Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly 33. At the front of the instrument, remove the power supply control cable from the Motherboard 2 PCB Assembly P93 header connector. 34. Remove the four (4) pan head Phillips M2.5 × 10 mm screws holding the Power Supply Module Bracket into the Card Guide Rails.
Page 714: Figure 18-9. Remove Or Install The Dc Fan Bracket/Card Guide Assembly
18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly Digital PCB Fan Assembly Remove the DC Fan Bracket/Card Guide Assembly 38. Remove the DC Fan Bracket Assembly with the attached Card Guide Assembly from the chassis. 1. Instrument rear 5. Instrument chassis center plate. 2.
Page 715: Figure 18-10.Digital Pcb Fan Bracket/Card Guide Assembly
Digital PCB Fan Assembly 18-2 Remove the Digital PCB Fan Bracket/Card Guide Assembly 39. From the Analog PCB Bay, remove the eight (8) flat head Phillips M4 × 10 mm screws holding the Digital PCB Fan Assembly with attached PCB Card Guide Assembly in place. 40.
Page 716: Figure 18-11. Card Guide Assembly After Removing The Fan And Fan Bracket
18-3 Prepare the Replacement Digital PCB Fan Assembly Digital PCB Fan Assembly 18-3 Prepare the Replacement Digital PCB Fan Assembly Use this procedure to disassemble the Digital PCB Fan Assembly, and install the replacement fan. Prerequisites 1. The Digital PCB Fan Assembly has been removed from the instrument chassis. 2.
Page 717: Figure 18-12. Remove Or Install The Digital Pcb Fan On The Fan Bracket
Digital PCB Fan Assembly 18-3 Prepare the Replacement Digital PCB Fan Assembly Remove the Fan from the Fan Bracket 4. Remove the Digital PCB Fan from the Digital Fan Bracket as shown below in Figure 18-12. Figure 18-12.Remove or Install the Digital PCB Fan on the Fan Bracket (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 718 18-3 Prepare the Replacement Digital PCB Fan Assembly Digital PCB Fan Assembly Fan, Airflow, and Bracket Fastening Hardware 1. Digital PCB Fan and Harness The fan is held to its mounting bracket with the following hardware in four (4) places: 2.
Page 719: Figure 18-13.Remove Or Install The Fan And Digital Pcb Fan Bracket
Digital PCB Fan Assembly 18-3 Prepare the Replacement Digital PCB Fan Assembly Fan to Fan Bracket Mounting Hardware 5. As shown in Figure 18-12 above, the fan mounting hardware consists of four (4) sets of the following: • Pan head Phillips 6×32 × 0.750” mounting screws •...
Page 720 18-3 Prepare the Replacement Digital PCB Fan Assembly Digital PCB Fan Assembly 12. Working from the front side of the Fan Bracket, insert each screw through the washer, and then through the standoff (with the standoff flange facing the screw head), through the vibration isolation grommet, and finally thread into the spring clip mounted on the fan.
Page 721 Digital PCB Fan Assembly 18-4 Install the Digital Fan Bracket Card Guide Assembly 18-4 Install the Digital Fan Bracket Card Guide Assembly Use this procedure to install the Digital Fan Bracket Card Guide Assembly into the chassis after removal. This procedure is used after removing the assembly to replace the fan, or to access the Motherboard 1 PCB Assembly.
Page 722: Figure 16-5. Remove Or Install The Rear Panel Sub Plate
18-4 Install the Digital Fan Bracket Card Guide Assembly Digital PCB Fan Assembly Install the Chassis Left Side Plate 15. See Figure 17-7, “Location of Left Side Screw and Rear Panel Screws” on page 17-14 for orientation. 16. Position the chassis left side plate loosely in position and then prepare to insert the 14 flat head screws to hold it in place.
Page 723 Digital PCB Fan Assembly 18-4 Install the Digital Fan Bracket Card Guide Assembly Install Covers 32. Install the Inner Top Cover. • Section 7-7 “Common - Install Inner Cover” on page 7-15 33. Install the Outer Cover. • Section 7-8 “Common - Install Outer Cover” on page 7-16 MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 724 18-4 Install the Digital Fan Bracket Card Guide Assembly Digital PCB Fan Assembly 18-26 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 725 Chapter 19 — MB1 and MB2 PCB Replacement Procedures 19-1 Introduction This chapter describes the procedures to remove the Motherboard 1 PCB and the Motherboard 2 PCB Assemblies. The Motherboard 2 PCB Assembly must be first removed to replace the Motherboard 1 PCB Assembly and is mounted horizontally below the PCB bays and above the RF Deck Assembly.
Page 726: Figure 19-1. Motherboard 1 (Mb1) Pcb Assembly - Phase 1 / Phase 2 Mb2 Pcbs
19-1 Introduction MB1 and MB2 PCB Replacement Procedures Front Right ND70069 - 61920-3 Analog PCBs Digital PCBs Left Phase 2 ND73878 - 3-72813-3 Rear Phase 1 ND70070 - 61923-3 Figure 19-1. Motherboard 1 (MB1) PCB Assembly – Phase 1 / Phase 2 MB2 PCBs (1 of 2) 19-2 PN: 10410-00268 Rev.
Page 727 MB1 and MB2 PCB Replacement Procedures 19-1 Introduction Orientation Phase 1 MB2 PCB Viewing the instrument chassis from the Rear Panel. 5. Mounted horizontally below the Digital PCB Bay and just above the RF Deck chassis. Removals 6. MB2 – Phase 1 Motherboard 2 PCB Assembly – The Left Side Chassis Plate, the Rear Panel Plate, the ND70070 –...
Page 728 19-2 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 MB1 and MB2 PCB Replacement Procedures 19-2 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 The Phase 1 MB2 is only compatible with the Phase 1 digital section PCBs and power supply module listed below.
Page 729: Figure 19-2. Phase 1 Motherboard 2 Pcb Assembly - Nd70070 - 61923-3 - Connectors
MB1 and MB2 PCB Replacement Procedures 19-2 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 Figure 19-2 below, the MB2 connector locations are shown. In Figure 19-3 on page 19-7, a detailed view of the MB2 front connectors is shown. ND70070 - 61923-3 Phase 1 Figure 19-2.
Page 730 19-2 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 MB1 and MB2 PCB Replacement Procedures Power Supply Connectors A3 Single Board Computer PCB Edge Connectors P62 – +3.3 VDC Sense Cable P93 – Power Control Cable P94 – Main Cable Harness from Power Supply Front Panel Connectors P61 –...
Page 731: Figure 19-3. Phase 1 Motherboard 2 Pcb Assembly - Nd70070 - 61923-3 - Front
MB1 and MB2 PCB Replacement Procedures 19-2 Phase 1 – MB2 PCB Assembly – ND70070 – 61923-3 +12.0V +12.0V +3.3V +3.8V -12.0V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL FRONT PANEL PWR CTRL 1. P61 – Ribbon Cable Connector to Front Panel P94 –...
Page 732 19-3 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 MB1 and MB2 PCB Replacement Procedures 19-3 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 The Phase 2 MB2 is only compatible with the Phase 2 digital section PCBs and power supply module listed below.
Page 733: Figure 19-4. Phase 2 Motherboard 2 Pcb Assembly - Nd73878 - 3-72813-3 - Connectors
MB1 and MB2 PCB Replacement Procedures 19-3 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 Figure 19-4 below, the MB2 connector locations are shown. In Figure 19-5 on page 19-11, a detailed view of the MB2 front connectors is shown. ND73878 - 3-72813-3 Phase 2 Figure 19-4.
Page 734 19-3 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 MB1 and MB2 PCB Replacement Procedures Power Supply Connectors Carrier Board PCB Edge Connectors P94 – Main Cable Harness from Power Supply P93 – Power Control Cable P62 – +3.3 VDC Sense Cable Front Panel Connectors P61 –...
Page 735: Figure 19-5. Phase 2 Motherboard 2 Pcb Assembly - Nd73878 - 3-72813-3 - Front
MB1 and MB2 PCB Replacement Procedures 19-3 Phase 2 – MB2 PCB Assembly – ND73878 – 3-72813-3 +12.0V +3.8V -12.0V +12.0V +3.3V Pin 15 Pin 1 Pin 30 POWER IN Pin 16 FRONT PANEL HDMI +3.3VD SENSE PWR CTRL 1. P61 – Ribbon Cable Connector to Front Panel P94 –...
Page 736 19-4 Remove the Motherboard 2 PCB Assembly MB1 and MB2 PCB Replacement Procedures 19-4 Remove the Motherboard 2 PCB Assembly Use this removal procedure for both Phase 1 and Phase 2 MB2 PCBs. Both PCBs are mechanically identical. Common Procedures 1.
Page 737 MB1 and MB2 PCB Replacement Procedures 19-4 Remove the Motherboard 2 PCB Assembly Rear Panel Sub Plate 17. Position the instrument right side up. 18. Be careful not to scratch the silk-screened Rear Sub Plate when working on it. 19. Remove the Rear Sub Plate by removing 14 pan head Phillips M3 × 6 mm screws. 20.
Page 738 19-5 Prepare the Replacement Motherboard 2 PCB Assembly MB1 and MB2 PCB Replacement Procedures Next Steps 41. At this point, the next step depends on the removal goal. Use one of the two procedure groups below depending on that goal. 42.
Page 739 MB1 and MB2 PCB Replacement Procedures 19-6 Install the Motherboard 2 PCB Assembly 13. Install the RF Deck. • See Section 14-4 “Install the RF Deck” on page 14-12. Install Analog Module Assemblies 14. Position the instrument right side up. 15.
Page 740: Figure 19-6. Motherboard 1 Pcb Assembly - Nd70069 - 61920-3 - Replacement
19-7 Motherboard 1 PCB Assembly – ND70069 – 61920-3 MB1 and MB2 PCB Replacement Procedures 19-7 Motherboard 1 PCB Assembly – ND70069 – 61920-3 Part and Applicability • MB1 – Motherboard 1 PCB Assembly – ND70069 – 61920-3 • Applicable to all MS4640A models with any combination of options. •...
Page 741 MB1 and MB2 PCB Replacement Procedures 19-7 Motherboard 1 PCB Assembly – ND70069 – 61920-3 1. Front Panel removed here. 7. MB1 J11 – Connects to MB2 PCB 2. Motherboard 2 PCB removed here. 8. MB1 J12 – Connects to MB2 PCB 3.
Page 742 19-8 Remove the MB1 PCB Assembly – ND70069 – 61920-3 MB1 and MB2 PCB Replacement Procedures 19-8 Remove the MB1 PCB Assembly – ND70069 – 61920-3 Procedure Use this procedure to remove the Motherboard 1 PCB assembly. In general, the only reason to remove the Motherboard 1 PCB Assembly is to replace it.
Page 743 MB1 and MB2 PCB Replacement Procedures 19-8 Remove the MB1 PCB Assembly – ND70069 – 61920-3 18. Remove the Digital PCB Fan Bracket and Card Guide Assembly. • See Section 18-2, “Remove the Digital PCB Fan Bracket/Card Guide Assembly” on page 18-2.
Page 744 19-9 Prepare the Replacement Motherboard 1 PCB Assembly MB1 and MB2 PCB Replacement Procedures 19-9 Prepare the Replacement Motherboard 1 PCB Assembly There are no replaceable parts and no cable harnesses on the Motherboard 1 PCB Assembly. 19-10 Install the Motherboard 1 PCB Assembly Use this procedure to install a replacement Motherboard 1 PCB Assembly.
Page 745 MB1 and MB2 PCB Replacement Procedures 19-10 Install the Motherboard 1 PCB Assembly Analog Module Assemblies 16. Position the instrument right side up. 17. Install the analog section module assemblies and connect their cables. • See Section 9-15 “Install the Right Side Analog Modules” on page 9-31.
Page 746 19-10 Install the Motherboard 1 PCB Assembly MB1 and MB2 PCB Replacement Procedures 19-22 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 747 Each port and connector is described with its connector type, its function, input/output limits, and, for the External I/O connector, its pin-out diagram. See the VectorStar MS4640A Series VNA Operation Manual – 10410-00266 for an overview of the user interface and detailed descriptions for each menu and dialog box.
Page 748: Figure A-1. Typical Vectorstar Ms4640A Series Vna Front Panel
Typical VectorStar Front Panel. The Front Panel appearance varies depending in instrument model, phase, and equipped options. Figure A-1. Typical VectorStar MS4640A Series VNA Front Panel PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 749 Front and Rear Panel Reference A-3 Front Panel Hard Keys and Connectors Frequency Calibration Power Measurement Sweep Application Channel System Response File Trace Display Help Scale Marker Preset Standby Operate Figure A-2. Typical MS4640A Series Front Panel Hard Keys and Connectors (1 of 2) MS4640A Series VNA MM PN: 10410-00268 Rev.
Page 750 A-3 Front Panel Hard Keys and Connectors Front and Rear Panel Reference Top Row Bottom Row 1. Instrument model number identification 11. Standby/Operate Key: Pressing and holding the key for more than one (1) second toggles the VNA 2. Display Area: Touch screen with instrument test between standby and operate modes.
Page 751: Table A-1. Front Panel Hard Keys And Functions
Front and Rear Panel Reference A-3 Front Panel Hard Keys and Connectors Front Panel Hard Key and Connector Description The front panel hard keys are described in Table A-1 below. All front panel keys, controls, and ports are standard and equipped on all instrument models unless otherwise specified. Table A-1.
Page 752 A-3 Front Panel Hard Keys and Connectors Front and Rear Panel Reference Table A-1. Front Panel Hard Keys and Functions (2 of 8) Key Name Primary Functions Calibration, Measurement, and Application Keys Calibration Key Pressing Calibration displays the user interface CALIBRATION menu. Navigation Path: MAIN | Calibration | CALIBRATION menu Measurement Key Pressing Measurement displays the MEASUREMENT menu in the user interface...
Page 753 Front and Rear Panel Reference A-3 Front Panel Hard Keys and Connectors Table A-1. Front Panel Hard Keys and Functions (3 of 8) Key Name Primary Functions Preset Key Returns the instrument (or presets it) to the last active configuration preset loaded as defined and set in the PRESET SETUP menu.
Page 754 A-3 Front Panel Hard Keys and Connectors Front and Rear Panel Reference Table A-1. Front Panel Hard Keys and Functions (4 of 8) Key Name Primary Functions Response, Display, Scale, and Marker Key Group Response Key Pressing Response displays the Response menu in the user interface display. The RESPONSE menu displayed depends on whether the instrument is in 2-Port or 4-Port mode.
Page 755 Front and Rear Panel Reference A-3 Front Panel Hard Keys and Connectors Table A-1. Front Panel Hard Keys and Functions (5 of 8) Key Name Primary Functions Navigation and Data Entry Keys Rotary Knob The operation of the Rotary Knob varies depending on the cursor focus. On selections, rotating the Rotary Knob clockwise moves the selection down.
Page 756 A-3 Front Panel Hard Keys and Connectors Front and Rear Panel Reference Table A-1. Front Panel Hard Keys and Functions (6 of 8) Key Name Primary Functions Keypad and Data Entry Key Group Keypad Digit Keys Used to enter digits from 0 (zero) to 9 (nine). .
Page 757 Front and Rear Panel Reference A-3 Front Panel Hard Keys and Connectors Table A-1. Front Panel Hard Keys and Functions (7 of 8) Key Name Primary Functions Test Port 1 and Loop Connectors Test Port 1 Universal Test Port Connector. K (m) for MS4642A and MS4644A.
Page 758 A-3 Front Panel Hard Keys and Connectors Front and Rear Panel Reference Table A-1. Front Panel Hard Keys and Functions (8 of 8) Key Name Primary Functions Test Port 2 and Loop Connectors Test Port 2 Universal Test Port Connector. K (m) for MS4642A and MS4644A.
Page 759: Figure A-3. Typical Ms4640A Series Vna Rear Panel
Front and Rear Panel Reference A-4 Rear Panel Ports and Connectors Rear Panel Ports and Connectors The MS4640A Series VNA rear panel connectors are shown below in Figure A-3. The following figure, Figure A-4, “Schematic of typical MS4640A Series VNA Rear Panel Ports and Connectors” provides identification of each connector and port.
Page 760 A-4 Rear Panel Ports and Connectors Front and Rear Panel Reference Figure A-4. Schematic of typical MS4640A Series VNA Rear Panel Ports and Connectors (1 of 2) A-14 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 761 27. Microsoft Windows 7 or Windows XP Software talker/listener. License Sticker 11. Dedicated GPIB (f) Port: GPIB port for control of 28. Anritsu Company Instrument Serial Number and peripheral devices such as a Power Meter or Installed Options Sticker: The sticker lists the External Source.
Page 762: Table A-2. Rear Panel Connectors
A-4 Rear Panel Ports and Connectors Front and Rear Panel Reference Rear Panel Port and Connector Descriptions A summary of the MS4640A Series VNA rear panel connectors is available in Table A-2 below. The table defines the name of each connector, its type, general specifications, and may provide a cross reference to a connector pin-out diagram later in this chapter.
Page 763 Front and Rear Panel Reference A-4 Rear Panel Ports and Connectors Table A-2. Rear Panel Connectors (2 of 10) Connector Name Primary Function / Cross References AC Power Internal Fuses Use the tab in the AC Power Rocker Switch (described above) to remove the fuse cover and access the fuses.
Page 764 A-4 Rear Panel Ports and Connectors Front and Rear Panel Reference Table A-2. Rear Panel Connectors (3 of 10) Connector Name Primary Function / Cross References Serial Port 9-pin Mini D-Sub (f) Connector Compatible with RS-232C. Provides control for AutoCal modules and other accessories.
Page 765 Front and Rear Panel Reference A-4 Rear Panel Ports and Connectors Table A-2. Rear Panel Connectors (4 of 10) Connector Name Primary Function / Cross References IF Input/Output Loop Connectors Input/Outputs a1 IF SMA (f) Connectors Inputs used with external converters such as Millimeter Wave (mmW) modules, or for antenna testing.
Page 766 A-4 Rear Panel Ports and Connectors Front and Rear Panel Reference Table A-2. Rear Panel Connectors (5 of 10) Connector Name Primary Function / Cross References External I/O and GPIB Ports External I/O Port 25-pin D-Sub (f) connector. User-defined I/O for custom external test set interface, to synchronize with different sweep states, such as Start, Stop, or Driven Port.
Page 767 Front and Rear Panel Reference A-4 Rear Panel Ports and Connectors Table A-2. Rear Panel Connectors (6 of 10) Connector Name Primary Function / Cross References External Trigger and Lock Ports Ext Trigger BNC (f) Connector External Trigger Lock Status BNC (f) Connector Trigger Lock Status Ready for Trigger...
Page 768 A-4 Rear Panel Ports and Connectors Front and Rear Panel Reference Table A-2. Rear Panel Connectors (7 of 10) Connector Name Primary Function / Cross References Analog In Ports Analog In 1 BNC (f) Connector Independent input for measurements simultaneous with the RF measurements, for current sensing, efficiency computation, and power detection.
Page 769 Front and Rear Panel Reference A-4 Rear Panel Ports and Connectors Table A-2. Rear Panel Connectors (8 of 10) Connector Name Primary Function / Cross References Network, USB, and PS2 Connectors LAN Ethernet Port 10/100BaseT Ethernet RJ-45 Connector. Standard. USB 2.0 Type A Ports USB 2.0 Type A Ports, two (2) on Rear Panel.
Page 770 A-4 Rear Panel Ports and Connectors Front and Rear Panel Reference Table A-2. Rear Panel Connectors (9 of 10) Connector Name Primary Function / Cross References Bias Fuses Bias Fuse Port 1 Fuse Connector Included with optional Bias Input Ports above. One fuse per Bias Input Port Fuses are F-Type rated at 0.5 A, 250 V.
Page 771 Front and Rear Panel Reference A-4 Rear Panel Ports and Connectors Table A-2. Rear Panel Connectors (10 of 10) Connector Name Primary Function / Cross References Access Loops (< 2.5 GHz) a2 Access Loop SMA (f) port with SMA (m) loop. Receiver path for Port 2 For <2.5 GHz frequency coverage.
Page 772: Figure A-5. External I/O Db-25P Connector Pinout Diagram
The outputs are 0 V low and +3.3 V high and are TTL compatible. 23 - 25. Reserved Reserved controlling Anritsu external test sets. Figure A-5. External I/O DB-25P Connector Pinout Diagram A-26 PN: 10410-00268 Rev. D...
Page 773 MS4640A main chassis. If multiple uses are anticipated, obtain Knurled Head M5 x 8 mm screws to speed fixture setup. If required by the customer, the T3545 Fixture can be purchased from Anritsu or easily manufactured locally using the specifications in the figure below.
Page 774: Figure B-1. T3545 - Rf Deck Maintenance Fixture - 62036
Dimensions in inches, Aluminum, 0.090” Thick, Break Corners and Edges Figure B-1. T3545 – RF Deck Maintenance Fixture – 62036 The RF Deck Fixture above can be ordered from Anritsu or manufactured locally. PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 775 Disassembly into Main Assemblies The procedure below is a summary of how to disassemble the VectorStar MS4640A Series VNA down to its major replaceable assemblies. Once the RF Deck is removed, it is attached to a T3545 Fixture and component-level disassembly continues.
Page 776 C-2 Full Disassembly Procedures Full Disassembly Procedure Rear Panel Removal 12. Remove the Rear Panel SATA Solid State Drive (SSD) or the Hard Disk Drive (HDD) by loosening the hardware in two (2) places and then gently pull out the HDD from its Motherboard 2 PCB connector. 13.
Page 777 Full Disassembly Procedure C-2 Full Disassembly Procedures 33. Place instrument back down onto cart. 34. Disassemble the remaining chassis walls by removing the appropriate hardware. MS4640A Series VNA MM PN: 10410-00268 Rev. D...
Page 778 C-3 Disassembly Overview for Individual Components Full Disassembly Procedure Disassembly Overview for Individual Components If required, the procedures below describe how to disassemble each component. These procedures are not recommended for field level repairs. SATA Hard Disk Drive 1. Remove the left and right side brackets from the SATA Drive by removing hardware in four (4) places. Then slide the SATA Drive out from between its brackets.
Page 779 Full Disassembly Procedure C-3 Disassembly Overview for Individual Components Rear Panel 1. Place the Rear Panel Assembly in a fixture or vise to keep it stable. Unplug the coaxial cables from the A17 Rear Panel PCB. 2. Disconnect the ground cable from the fan guard to the Rear Panel by removing the nut on the fan and the screw on the Rear Panel.
Page 780 C-3 Disassembly Overview for Individual Components Full Disassembly Procedure 5. Remove the hardware from the A6 PCB panel ejector and separate the panel from the PCB. 6. Separate the plastic ejector from the panel by removing existing hardware. 7. Remove all cable assemblies. RF Deck Disassembly 1.
Page 781 Appendix D — Test Record Introduction Use this appendix to print out and record test, calibration, and verification information. The following test records are available: • Section D-2 “Log Magnitude Dynamic Accuracy” on page D-2. MS4640A Series VNA MM PN: 10410-00268 Rev. D...
Page 782: Table D-1. Measured S21 Values And Calculated Step Attenuator Attenuation Values
D-2 Log Magnitude Dynamic Accuracy Test Record Log Magnitude Dynamic Accuracy This appendix section provides the test record that can be used to record the result of the Log Magnitude Dynamic Accuracy Test. Make a copy of the following Test Record pages and document the test results each time the Log Magnitude Dynamic Accuracy Test is performed.
Page 783: Table D-2. Attenuation Calculated Upper Limits, Mean Values, Lower Limits, And Pass/Fail
Test Record D-3 MS4640A Log Magnitude Dynamic Accuracy Test Record MS4640A Log Magnitude Dynamic Accuracy Test Record MS4640A Log Magnitude Dynamic Accuracy Test Worksheet Instrument Information Model: Serial Number: Options: Comments: Operator: Date: Table D-2. Attenuation Calculated Upper Limits, Mean Values, Lower Limits, and Pass/Fail Attenuation Attenuation Device...
Page 784 D-3 MS4640A Log Magnitude Dynamic Accuracy Test Record Test Record PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 785 Technical Data Sheet – 11410-00432. VectorStar Technical Data Sheet This and many other documents are available on the Anritsu web site at www.anritsu.com. In the search field, enter “VectorStar” or “MS4640A” to find VectorStar VNA information. MS4640A Series VNA MM...
Page 786 E-2 VectorStar Technical Data Sheet VectorStar Technical Data Sheet PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 787 • Standard No Options Installed • Option 051 Front Panel Loops • Option 061 Front Panel Loops and two Attenuators • Option 062 Front Panel Loops and four Attenuators. Anritsu Part Number Assy Assembly Advanced Technology Attachment. See SATA. Auxiliary b1, b2 b1 means Test Channel numerator for S11/S12 measurements.
Page 788 The referenced component can only be serviced after partial instrument disassembly. Instrument Test Software. The current MS4640A Series VNA instrument test software is 2300-531-R. It is described in the VectorStar MS4640A Series 2300-531-R Instrument Test Software Quick Start Guide – 10410-00291.
Page 789 SMA, K, and V connectors are torqued to 8 lbf · in (8 inch pounds) using a 5/16” Torque End Wrench – Anritsu 01-201 or equivalent. The front panel Test Port Adapters require a 1/2” torque end wrench set to 60 lbf · in (60 inch pounds).
Page 790 Panel PCB Assembly is ND70067 – 62086 – A17. No ND There is no “ND” part number for this part and the Anritsu Part Number is used instead. Many replacement parts have ND part numbers such as the replacement SATA Hard Drive – ND70071. Some replacement parts only have Anritsu Part Numbers such as the MS4642A / MS4644A Test Port Connector –...
Page 791 Plug number “Pn” on the indicated location, typically on a PCB or panel. Anritsu Part Number. Replacement parts are identified by a variable combination of Anritsu part numbers and/or “ND” part numbers. Some parts are further identified by engineering “A” reference numbers.
Page 792 F-2 Glossary and Abbreviations Glossary Port Module Groups A collection of RF Deck Bottom Side modules that are mechanically and electrically connected to provide input/output to the named port. The disassembly and access procedure for a port module group depends on several factors and in this manual are divided up into the following common procedures: 1.
Page 793 A3 Single Board Computer PCB Assembly. Some replacement parts do not have an “ND” number and are identified as “No ND” with their Anritsu Part Numbers. For example, the 40 GHz High Band Step Attenuators used on the MS4642A / MS4644A with Option 061 or 062 are identified as “No ND –...
Page 794 VectorStar Front Panel and two ports located on the Rear Panel. Volts V connector Trademarked Anritsu Company. A 1.85 mm coaxial connector with a rated frequency range from DC to 70 GHz. Variants VNA hardware configuration combinations based on either the VNA model number, the installed option, or both.
Page 795 Glossary F-2 Glossary and Abbreviations Verif. Kit Verification Kit VITS V Integrated High Band Transfer Switch Module – A108 – ND70093 – 66619. The module is installed on MS4645A and MS4647A models. The A108 module installed on MS46742A / MS4644A VNAs is the A108 High Band Transfer Switch Module – ND70092 –...
Page 796 F-2 Glossary and Abbreviations Glossary F-10 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 797 Most VectorStar VNA internal cables are identified with three labels providing the following information: • The assembly and connector where they originate. • The cable or harness Anritsu part number. • The assembly and connector where they terminate. Cable Cross Reference Tables All three cross reference tables use the same data.
Page 798 G-4 Notes to Cable Cross Reference Tables Cabling Tables Table G-1. Notes to Cable Cross Reference Tables (2 of 2) Note Description • Any – Standard No Options, Option 051, 061, or 062. • Standard No Options – Option 051, 061, or 062 is not installed. •...
Page 799: Table G-2. Vectorstar Internal Cables - Sorted By Part Number
Cabling Tables G-5 VectorStar MS4640A VNA Cables by Part Number VectorStar MS4640A VNA Cables by Part Number This table sorts cables by Anritsu part number. See Table G-1, “Notes to Cable Cross Reference Tables” on page G-1 above for note definitions.
Page 800 G-5 VectorStar MS4640A VNA Cables by Part Number Cabling Tables Table G-2. VectorStar Internal Cables - Sorted by Part Number (2 of 6) Origin Dest Description Link Between Models Options 62109-4 A108 J4 A105 J1 A108 J4 - A105 J1, V male to male RF High Band Transfer Switch MS4645A Standard...
Page 801 Cabling Tables G-5 VectorStar MS4640A VNA Cables by Part Number Table G-2. VectorStar Internal Cables - Sorted by Part Number (3 of 6) Origin Dest Description Link Between Models Options 62111-2 A103 J2 A111 J5 A103 J2 - A111 J5, V male to K male a2 Sampler Module to LO RF Cable Module...
Page 802 G-5 VectorStar MS4640A VNA Cables by Part Number Cabling Tables Table G-2. VectorStar Internal Cables - Sorted by Part Number (4 of 6) Origin Dest Description Link Between Models Options 62112-7 A117 J3 RF Deck A117 J3 - Rear a2 Out, SMA male to Port 2 Low Band Reference Rear Panel male RF Cable...
Page 803 Cabling Tables G-5 VectorStar MS4640A VNA Cables by Part Number Table G-2. VectorStar Internal Cables - Sorted by Part Number (5 of 6) Origin Dest Description Link Between Models Options 62112-27 A116 J3 A15 J3 A116 J3 - A15 J3, SMA male to male Port 1 Low Band Reference Standard RF Cable...
Page 804 G-5 VectorStar MS4640A VNA Cables by Part Number Cabling Tables Table G-2. VectorStar Internal Cables - Sorted by Part Number (6 of 6) Origin Dest Description Link Between Models Options 67357-4 A108 J3 A105 J1 A108 J3 - A105 J1, K male to male RF High Band Transfer Switch MS4642A Cable...
Page 805: Table G-3. Vectorstar Internal Cables - Sorted By Origin, Destination, And Part Number
Cabling Tables G-6 VectorStar MS4640A VNA Cables by Origin VectorStar MS4640A VNA Cables by Origin This cross reference table is sorted by the origin (or “from”) assembly or module. See Table G-1, “Notes to Cable Cross Reference Tables” on page G-1 above for note definitions.
Page 806 G-6 VectorStar MS4640A VNA Cables by Origin Cabling Tables Table G-3. VectorStar Internal Cables - Sorted by Origin, Destination, and Part Number (2 of 7) Orig Origin Dest Description Link Between Models Options A104 J2 A100 J1 62109-2 A104 J2 - A100 J1, V Port 1 High Band Test MS4645A Standard...
Page 807 Cabling Tables G-6 VectorStar MS4640A VNA Cables by Origin Table G-3. VectorStar Internal Cables - Sorted by Origin, Destination, and Part Number (3 of 7) Orig Origin Dest Description Link Between Models Options A108 J3 A105 J1 67357-2 A108 J3 - A105 J1, K High Band Transfer MS4642A Standard...
Page 808 G-6 VectorStar MS4640A VNA Cables by Origin Cabling Tables Table G-3. VectorStar Internal Cables - Sorted by Origin, Destination, and Part Number (4 of 7) Orig Origin Dest Description Link Between Models Options A113 J2 A108 J1 62112-14 A113 J2 - A108 J1, SMA 5-20 GHz Doubler Module MS4642A A113-J02...
Page 809 Cabling Tables G-6 VectorStar MS4640A VNA Cables by Origin Table G-3. VectorStar Internal Cables - Sorted by Origin, Destination, and Part Number (5 of 7) Orig Origin Dest Description Link Between Models Options A119 J3 A15 J7 62112-30 A119 J3 - A15 J7, SMA Port 2 Low Band Test Standard A119-J03...
Page 810 G-6 VectorStar MS4640A VNA Cables by Origin Cabling Tables Table G-3. VectorStar Internal Cables - Sorted by Origin, Destination, and Part Number (6 of 7) Orig Origin Dest Description Link Between Models Options RF Deck A100 J1 62111-10 Front b1 In - A100 J1, K RF Deck Front Panel b1 MS4642A RFD-FP-B1...
Page 811 Cabling Tables G-6 VectorStar MS4640A VNA Cables by Origin Table G-3. VectorStar Internal Cables - Sorted by Origin, Destination, and Part Number (7 of 7) Orig Origin Dest Description Link Between Models Options RF Deck A119 J2 62112-6 Rear Port 2 Src In - A119 Rear Panel Port 2 Src In RFD-RP-P2 Rear Panel...
Page 812: Table G-4. Vectorstar Internal Cables - Sorted By Destination, Origin, And Part Number
G-7 VectorStar Cables by Destination Cabling Tables VectorStar Cables by Destination This cross reference table is sorted by the destination (or “to”) assembly or module. See Table G-1, “Notes to Cable Cross Reference Tables” on page G-1 above for note definitions. Table G-4.
Page 813 Cabling Tables G-7 VectorStar Cables by Destination Table G-4. VectorStar Internal Cables - Sorted by Destination, Origin, and Part Number (2 of 6) Dest Origin Description Link Between Models Options A15 J7 A127 J2 62112-26 A127 J2 - A15 J7, SMA male to Port 2 Low Band Test Step male RF Cable Attenuator to Low Band...
Page 814 G-7 VectorStar Cables by Destination Cabling Tables Table G-4. VectorStar Internal Cables - Sorted by Destination, Origin, and Part Number (3 of 6) Dest Origin Description Link Between Models Options A102 J1 A106 J2 62111-5 A106 J2 - A102 J1, K male to V Port 2 Test Coupler to b2 MS4642A Standard...
Page 815 Cabling Tables G-7 VectorStar Cables by Destination Table G-4. VectorStar Internal Cables - Sorted by Destination, Origin, and Part Number (4 of 6) Dest Origin Description Link Between Models Options A108 J1 A113 J2 62112-14 A113 J2 - A108 J1, SMA male to 5-20 GHz Doubler Module to MS4642A male RF Cable...
Page 816 G-7 VectorStar Cables by Destination Cabling Tables Table G-4. VectorStar Internal Cables - Sorted by Destination, Origin, and Part Number (5 of 6) Dest Origin Description Link Between Models Options A128 J2 RF Deck 62107-1 Front Port 1 Src In - A128 J2, V RF Deck Front Panel Port 1 Src MS4645A Front Panel...
Page 817 Cabling Tables G-7 VectorStar Cables by Destination Table G-4. VectorStar Internal Cables - Sorted by Destination, Origin, and Part Number (6 of 6) Dest Origin Description Link Between Models Options RF Deck A105 J3 62109-19 A105 J3 - Front Port 1 Src Out, V Port 1 High Band Reference MS4645A Front Panel...
Page 818 G-7 VectorStar Cables by Destination Cabling Tables G-22 PN: 10410-00268 Rev. D MS4640A Series VNA MM...
Page 819 Symbols to L Subject Index Bias Fuse Port 2 ......A-24 Symbols Bias Input Port 1 Connector ....A-23 .
Page 820 M to X Left Arrow Key ......A-9 Lock Status ......A-21 Safety Symbols For Safety .
Page 822 Anritsu Company 490 Jarvis Drive Anritsu utilizes recycled paper and environmentally conscious inks and toner. Morgan Hill, CA 95037-2809 http://www.anritsu.com...

This manual is also suitable for:

Vectorstar ms4647a Vectorstar ms4645a Vectorstar ms4644a Vectorstar ms4642a