Page 1 Lightning 37297E VNA, V Connectors, 40.0 MHz to 65.0 GHz Lightning 37397E VNA, V Connectors, 40.0 MHz to 65.0 GHz Anritsu Company Part Number: 10410-00303 490 Jarvis Drive Revision: A Morgan Hill, CA 95037-2809 Published: January 2011 Copyright 2006-2010 Anritsu Company...
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 Always refer to the operation manual when working near locations at which Warning 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: Table Of Contents
Table of Contents Chapter 1—General Information Manual Introduction ............1-1 Chapter Introduction .
Page 6 Table of Contents (Continued) 2-11 File Server Device With SD Card Reader........2-21 Cabling Diagram for File Server Device With SD Card Reader.
Page 7 Table of Contents (Continued) Digital Subsystem Assemblies ..........3-14 A9 Main Processor PCB Assembly .
Page 8 Table of Contents (Continued) Performance Tests ............4-5 Test Specifications.
Page 9 Table of Contents (Continued) Chapter 6—Adjustments Introduction ..............6-1 LO1 Calibration.
Page 10 Table of Contents (Continued) Chapter 8—Removal and Replacement Procedures Introduction ..............8-1 Required Equipment .
Page 11 Table of Contents (Continued) 8-14 Liquid Crystal Display (LCD) Assembly ......... 8-28 Identification .
Page 12 Table of Contents (Continued) Appendix A—Test Record Introduction ..............A-1 37xxxE Log Magnitude Dynamic Accuracy Test Worksheet .
Page 13: Chapter 1-General Information
Chapter 1 — General Information Manual Introduction This manual provides general service and preventive maintenance information for the Anritsu 37xxxE Series models of Vector Network Analyzer (VNA) systems. It contains procedures for: • Testing the instrument for proper operation. • Verifying measurement accuracy and traceability to National Institute of Standards and Technology (NIST).
Page 14: Identification Number
Chapter 1 — General Information Identification Number All Anritsu instruments are assigned a six-digit ID number, such as “042503”. This number appears on a decal affixed to the rear panel. Please use this identification number during any correspondence with Anritsu Customer Service about this instrument.
Page 15: Standard Options
• Option 015K: Flexible Test Set with Front Panel Access Connections for Samplers (K connectors only) • Option 015V: Flexible Test Set with Front Panel Access Connections for Samplers (V connectors only) Contact your local Anritsu representative for information about installing any of the above options for the 37xxxE Series VNA family.
Page 16: System Test/Certification
For the latest service and sales information in your area, please visit the following URL: www.anritsu.com/Contact.asp Technical Support Technical service support is available by contacting any Anritsu Worldwide Service Center or service support may be obtained directly from the factory by contacting: Anritsu Company...
Page 17: Verification Kits
National Institute of Standards and Technology (NIST). See the Chapter 5, “System Performance Verification” chapter for details. Verification Kits The Anritsu Verification Kits listed below are used in conjunction with the 37xxxE Performance Verification Software. Table 1-2. Verification Kit Model Numbers for Lightning 37xxxE Series VNAs...
Page 18: Static Sensitive Component Handling Procedures
1-11 Static Sensitive Component Handling Procedures Chapter 1 — General Information 1-11 Static Sensitive Component Handling Procedures The VNA contains components that can be damaged by static electricity. Below, Figure 1-2 illustrates the precautions that should be followed when handling static-sensitive subassemblies and components. If followed, these precautions will minimize the possibilities of static-shock damage to these items.
Page 19 Chapter 1 — General Information 1-11 Static Sensitive Component Handling Procedures 1 – Do not touch exposed contacts on any static sensitive component. 2 – Do not slide static sensitive component across any surface. 3 – Do not handle static sensitive components in areas where the floor or work surface covering is capable of generating a static charge.
Page 20: Recommended Test Equipment
Anritsu 3666 For instruments without Option 7 Anritsu 3668 For model 37x97E Anritsu 3669B For K Connector Anritsu T2023-2 with K connectors Assurance Air Line For V Connector Anritsu T2025-2 with V connectors For 37xxxE models with K Test Anritsu 29KF50-15...
Page 21 A = Adjustment / Internal Hardware Calibration, O = Operational Testing, P = Performance Verification, Note 2 - Usage Codes T = Troubleshooting Use one of the two models listed. Anritsu MF2413B Frequency: 0.1 to 26.5 GHz EIP Microwave, Inc., Model 578B, Frequency Counter...
Page 22 Frequency Range: Useable to the Anritsu Model MA2474D, for full frequency range of the VNA 40 GHz and below VNAs Power Sensor A, O Anritsu Model SC7770, for 65 GHz VNA models. 1-10 PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 23: Chapter 2-Replaceable Parts
490 Jarvis Drive, Morgan Hill, CA 95037-2809 Telephone: (408)-778-2000, FAX: (408)-778-0239 Exchange Items For exchange items, the failed part must be returned to Anritsu. These parts are listed in the three tables below: • Table 2-1, “Printed Circuit Board Assemblies – Exchange Parts” on page 2-2 •...
Page 24: Printed Circuit Board Assemblies
2-4 Printed Circuit Board Assemblies Chapter 2 — Replaceable Parts Printed Circuit Board Assemblies Note The A17 VNA Motherboard PCB Assembly is not a field-replaceable item. Table 2-1. Printed Circuit Board Assemblies (1 of 3)– Exchange Parts General Location Description Reference Printed Circuit Board Original...
Page 25 Chapter 2 — Replaceable Parts 2-4 Printed Circuit Board Assemblies Table 2-1. Printed Circuit Board Assemblies (2 of 3)– Exchange Parts General Location Description Reference Printed Circuit Board Original Replacement Designator Assembly Name Part Number Part Number Replacement Procedure A20 PCB Front Panel Switch Control D44280-3 D44280-3...
Page 26 2-4 Printed Circuit Board Assemblies Chapter 2 — Replaceable Parts Table 2-1. Printed Circuit Board Assemblies (3 of 3)– Exchange Parts General Location Description Reference Printed Circuit Board Original Replacement Designator Assembly Name Part Number Part Number Replacement Procedure A24 PCB VME Bus Terminator D38524-3 D38424-3...
Page 27: Rf Source And Test Set Modules And Components
Chapter 2 — Replaceable Parts 2-5 RF Source and Test Set Modules and Components RF Source and Test Set Modules and Components Table 2-2. RF Source, Test Set, Modules, and Components – Exchange Parts (1 of 5) General Location Applicable Original Replacement Description...
Page 28 2-5 RF Source and Test Set Modules and Components Chapter 2 — Replaceable Parts Table 2-2. RF Source, Test Set, Modules, and Components – Exchange Parts (2 of 5) General Location Applicable Original Replacement Description 37xxxE Part Part Assembly Name VNA Models Number Number...
Page 29 Chapter 2 — Replaceable Parts 2-5 RF Source and Test Set Modules and Components Table 2-2. RF Source, Test Set, Modules, and Components – Exchange Parts (3 of 5) General Location Applicable Original Replacement Description 37xxxE Part Part Assembly Name VNA Models Number Number...
Page 30 2-5 RF Source and Test Set Modules and Components Chapter 2 — Replaceable Parts Table 2-2. RF Source, Test Set, Modules, and Components – Exchange Parts (4 of 5) General Location Applicable Original Replacement Description 37xxxE Part Part Assembly Name VNA Models Number Number...
Page 31 Chapter 2 — Replaceable Parts 2-5 RF Source and Test Set Modules and Components Table 2-2. RF Source, Test Set, Modules, and Components – Exchange Parts (5 of 5) General Location Applicable Original Replacement Description 37xxxE Part Part Assembly Name VNA Models Number Number...
Page 32: Power Supply Module
2-6 Power Supply Module Chapter 2 — Replaceable Parts Power Supply Module Table 2-3. Power Supply Module – Exchange Part General Location Applicable Description 37xxxE VNA Replacement Assembly Name Models Part Number Replacement Procedure Power Supply Module All models ND63006 Chassis Top Side For location, see Figure 2-3, “Major Assemblies...
Page 33: Miscellaneous Replacement Assemblies And Components
Chapter 2 — Replaceable Parts 2-7 Miscellaneous Replacement Assemblies and Components Miscellaneous Replacement Assemblies and Components Table 2-4. Miscellaneous Replacement Assemblies and Components – Non-Exchange Parts (1 of 2) General Location Applicable Description 37xxxE VNA Replacement Assembly Name Models Part Number Replacement Procedure All models ND54935...
Page 34 2-7 Miscellaneous Replacement Assemblies and Components Chapter 2 — Replaceable Parts Table 2-4. Miscellaneous Replacement Assemblies and Components – Non-Exchange Parts (2 of 2) General Location Applicable Description 37xxxE VNA Replacement Assembly Name Models Part Number Replacement Procedure Backlight Driver PCB for LCD All models 3-2300-1365 Front Panel Assembly...
Page 35: Instrument Covers
Chapter 2 — Replaceable Parts 2-8 Instrument Covers Instrument Covers The drawing below shows the location of the various chassis covers, associated components, and their mounting hardware. Figure 2-1. Lightning 37xxxE Chassis Covers and Mounting Hardware (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 36 2-8 Instrument Covers Chapter 2 — Replaceable Parts 1 – Chassis Cover Bottom 2 – Chassis Cover Left Side 3 – Chassis Cover Top 4 – Small Card Cage Cover 5 – Large Card Cage Cover 6 – Chassis Cover Right Side 7 –...
Page 37: Instrument Exploded View
Chapter 2 — Replaceable Parts 2-9 Instrument Exploded View Instrument Exploded View The drawing below shows an exploded view of the complete instrument. Figure 2-2. Chassis Exploded View (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev. A 2-15...
Page 38 2-9 Instrument Exploded View Chapter 2 — Replaceable Parts 1 – Front Panel Assembly 2 – Flat head Phillips 8×32 × 0.375” mounting screws, four places, two each side 3 – A19 Front Panel Switch PCB and A20 Front Panel Switch Control PCB 4 –...
Page 39: Chassis Top Side Assembly Locations
Chapter 2 — Replaceable Parts 2-10 Chassis Top Side Assembly Locations 2-10 Chassis Top Side Assembly Locations The drawing below shows major part locations in the upper chassis. A9 Main Proc PCB ND54935 ND72102 A13 to A16 Fan Assembly 62414 PCB Assemblies ND63006 Power Supply Module...
Page 40 2-10 Chassis Top Side Assembly Locations Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Test Port 2 3 – Front Panel Assembly 4 – A19 Front Panel Switch PCB – D44279-3 – Behind Front Panel 5 – A20 Front Panel Switch Control PCB – D44280-3 – Behind Front Panel 6 –...
Page 41: Chassis Major Assemblies - Exploded View
Chapter 2 — Replaceable Parts 2-10 Chassis Top Side Assembly Locations Chassis Major Assemblies – Exploded View Figure 2-4. Major Internal Assembly Locations (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev. A 2-19...
Page 42 2-10 Chassis Top Side Assembly Locations Chapter 2 — Replaceable Parts 1 – Front Panel – Not shown her for clarity. 2 – Test Set Chassis 3 – Ethernet Hub Assembly – ND72047 4 – Power Supply Module Assembly – ND63006 5 –...
Page 43: File Server Device With Sd Card Reader
Chapter 2 — Replaceable Parts 2-11 File Server Device With SD Card Reader 2-11 File Server Device With SD Card Reader Cabling Diagram for File Server Device With SD Card Reader The File Server Device with SD Card Reader – ND72103 assembly is connected to the Ethernet Hub – ND72047 and the USB Hub –...
Page 44 2-11 File Server Device With SD Card Reader Chapter 2 — Replaceable Parts Chassis viewed from top. 1 – Ethernet Hub – ND72047 2 – Cable – Ethernet CAT-5 RJ45 Male to Bulkhead RJ-45 Female – Connects to Ethernet Hub Port 5 and Female connector mounts on rear panel.
Page 45: File Server Device With Sd Card Reader - Inside Chassis View
Chapter 2 — Replaceable Parts 2-11 File Server Device With SD Card Reader File Server Device with SD Card Reader – Inside Chassis View This view shows the File Server Device mechanical mounting and its primary cable connections. File Server Device SD Card Reader ND72103 8 GB SD Card w/ OS...
Page 46 2-11 File Server Device With SD Card Reader Chapter 2 — Replaceable Parts Inside Rear Panel – File Server Device with SD Card Reader 1 – Rear Panel – Inside View 2 – Cable – Bulkhead RJ-45 Female to Ethernet CAT-5 RJ45 Male – Connects to Ethernet Hub Port 5 and Female connector mounts on rear panel.
Page 47: Sd Card Reader - Outside View
Chapter 2 — Replaceable Parts 2-11 File Server Device With SD Card Reader SD Card Reader – Outside View 8 GB SD Card w/ OS ND72104 SD Card Reader ND72103 File Server Device ND72103 Rear Panel Figure 2-7. File Server Device with SD Card Reader – Outside Chassis View (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 48 2-11 File Server Device With SD Card Reader Chapter 2 — Replaceable Parts Rear Panel – Outside – File Server Device with SD Card Reader 1 – Rear Panel – Outside View 2 – PS/2 Female Connector – Cable – Bulkhead PS/2 Female to pin connector – Connects to A17 PCB J16. 3 –...
Page 49: Usb Hub Assembly
Chapter 2 — Replaceable Parts 2-12 USB Hub Assembly 2-12 USB Hub Assembly USB Type B Port USB Type A Port Front Panel USB Hub 2000-1632 USB Hub and Front Panel USB Port 1 – USB 2.0 Hub – 2000-1632 2 –...
Page 50: Ethernet Hub Assembly
2-13 Ethernet Hub Assembly Chapter 2 — Replaceable Parts 2-13 Ethernet Hub Assembly Pwr Supply Module ND63006 Ethernet Hub ND72047 Front Panel Test Set Deck Figure 2-9. Power Supply Module – ND63003 and Ethernet Hub Assembly – ND72047 (1 of 2) 2-28 PN: 10410-00303 Rev.
Page 51 Chapter 2 — Replaceable Parts 2-13 Ethernet Hub Assembly 1 – Front Panel – Removed here for clarity. 2 – Test Set Deck Chassis – Mounted below the PCB chassis – Removed here for clarity. 3 – Ethernet Hub – ND72047 – Mounted in bracket – Bracket assembly fastens to chassis center plate in Power Supply Module bay.
Page 52: Signal Source Assembly Components
2-14 Signal Source Assembly Components Chapter 2 — Replaceable Parts 2-14 Signal Source Assembly Components 61184-3 A21A2 PCB D45244 Switched Filter D27532 Src Dwn Conv Mod ND68037 48512-3 2-20 GHz YIG Osc A21A1 PCB 1 – 2-20 GHz YIG Oscillator Assembly – ND68037 2 –...
Page 53: Front Panel Assembly
Chapter 2 — Replaceable Parts 2-15 Front Panel Assembly 2-15 Front Panel Assembly LCD Display 3-15-100 Backlight Ivr Dvr PCB 3-2300-1635 A19 Frt Pnl Sw PCB D44279-3 A20 Frt Pnl Sw Cntrl D44280-3 Figure 2-11. Front Panel Assembly (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 54 2-15 Front Panel Assembly Chapter 2 — Replaceable Parts Front Panel Assembly and Related PCS 1 – Front Panel Assembly 2 – A20 Front Panel Switch Control PCB – D44280-3 3 – A19 Front Panel Switch PCB – D33279-3 4 – Rubber Keypad – D42618 5 –...
Page 55: Rear Panel Assembly And Components
Chapter 2 — Replaceable Parts 2-16 Rear Panel Assembly and Components 2-16 Rear Panel Assembly and Components Rear Panel – Inside Components Figure 2-12. Rear Panel – Inside Components – A18 PCB, Fan, and AC Adapter Module (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 56 2-16 Rear Panel Assembly and Components Chapter 2 — Replaceable Parts 1 – Rear Panel 2 – Flat head Phillips screw, 6×32 × 0.75”, four places 3 – Flat #6 washer, four places 4 – Standoff #6×0.87”, four places 5 – Vibration isolation grommet, #6, four places 6 –...
Page 57: Rear Panel - Outside Components
Chapter 2 — Replaceable Parts 2-16 Rear Panel Assembly and Components Rear Panel – Outside Components Remove Rear Panel Connector Screws before removing A18 Rear Panel PCB – 61011-3 1 – Rear Panel 2 – GPIB Connector Hex Mounting Standoff Screws –...
Page 58: 37Xxxe Test Set Variants
2-17 37xxxE Test Set Variants Chapter 2 — Replaceable Parts 2-17 37xxxE Test Set Variants The figures in the sections following show the locations of the Test Set Modules based on the instrument type and options: • Figure 2-14, “Model 37247E Test Set Modules” on page 2-37 •...
Page 59: Test Set Modules - Model 37247E
Chapter 2 — Replaceable Parts 2-18 Test Set Modules – Model 37247E 2-18 Test Set Modules – Model 37247E ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 46535 Power Amplifier Transfer Switch 43KC-20 43KC-20 20 dB Fixed Attenuator 20 dB Fixed Attenuator 43KC-3 3 dB Fixed Attenuator...
Page 60 2-18 Test Set Modules – Model 37247E Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – 6 dB Fixed Attenuator – 43KC-6 6 –...
Page 61: Test Set Modules - Model 37347E
Chapter 2 — Replaceable Parts 2-19 Test Set Modules – Model 37347E 2-19 Test Set Modules – Model 37347E ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 46535 Power Amplifier Transfer Switch 43KC-20 43KC-20 20 dB Fixed Attenuator 20 dB Fixed Attenuator 43KC-6 4612K...
Page 62 2-19 Test Set Modules – Model 37347E Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – Bias Tee – 48383 6 –...
Page 63: Test Set Modules - Model 37269E
Chapter 2 — Replaceable Parts 2-20 Test Set Modules – Model 37269E 2-20 Test Set Modules – Model 37269E ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 43KC-10 Power Amplifier 10 dB Fixed Attenuator 46535 Transfer Switch 43KC-10 10 dB Fixed Attenuator 47520...
Page 64 2-20 Test Set Modules – Model 37269E Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – 3 dB Fixed Attenuator – 43KC-3 6 –...
Page 65: Test Set Modules - Model 37369E
Chapter 2 — Replaceable Parts 2-21 Test Set Modules – Model 37369E 2-21 Test Set Modules – Model 37369E ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 43KC-3 Power Amplifier 3 dB Fixed Attenuator 46535 Transfer Switch 43KC-3 3 dB Fixed Attenuator 47520...
Page 66 2-21 Test Set Modules – Model 37369E Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – Step Attenuator, 40 GHz, 70 dB – 4612K 6 –...
Page 67: Test Set Modules - Model 37297E
Chapter 2 — Replaceable Parts 2-22 Test Set Modules – Model 37297E 2-22 Test Set Modules – Model 37297E 49247 60129 ND61660 - 58437 Port 1 37 GHz HPF Port 1 SQM Dwn Conv & Smp Mod 49247 Port 2 37 GHz HPF ND61660 - 56650 60129 Power Amplifier...
Page 68 2-22 Test Set Modules – Model 37297E Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Port 1 Coupler – ND52929 3 – Test Port 2 4 – Port 2 Coupler – ND52929 5 – 3 dB Fixed Attenuator – ND26178 6 –...
Page 69: Test Set Modules - Model 37397E
Chapter 2 — Replaceable Parts 2-23 Test Set Modules – Model 37397E 2-23 Test Set Modules – Model 37397E 49247 60129 ND61660 - 58437 Port 1 37 GHz HPF Port 1 SQM Dwn Conv & Smp Mod 49247 Port 2 37 GHz HPF ND61660 - 56650 60129 Power Amplifier...
Page 70 2-23 Test Set Modules – Model 37397E Chapter 2 — Replaceable Parts 1 – Test Port 1 2 – Port 1 Coupler – ND52929 3 – Bias Tee – 53409 4 – Bias Tee – 53409 5 – Port 2 Coupler – ND52929 6 –...
Page 71: Chapter 3-Theory Of Operation
Chapter 3 — Theory of Operation Introduction This chapter provides a brief overview of the functional assemblies and major parts that comprise a typical 37xxxE VNA system. It also briefly describes the operation of each major assembly. System Overview Ratio Measurement Systems The Lightning 37xxxE Series Vector Network Analyzers are ratio measurement systems used to measure complex vector signal characteristics (real/imaginary, magnitude/phase, etc) of devices and systems in the 40 MHz to 65 GHz frequency range.
Page 72 3-2 System Overview Chapter 3 — Theory of Operation CONTINUED ON NEXT FIGURE Figure is continued in Figure 3-2, “Block Diagram – RF Source, Typical Test Set, and Receiver Down Conversion Modules – Part 2 of 2” on page 3-3 below.
Page 73 Chapter 3 — Theory of Operation 3-2 System Overview Figure is continued from Figure 3-1, “Block Diagram – RF Source, Typical Test Set, and Receiver Down Conversion Modules – Part 1 of 2.” on page 3-2 above. Figure 3-2. Block Diagram – RF Source, Typical Test Set, and Receiver Down Conversion Modules – Part 2 of 2 Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 74 3-2 System Overview Chapter 3 — Theory of Operation Figure 3-3. Block Diagram – Test Signal Paths – 20 GHz and 40 GHz Models PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 75 Chapter 3 — Theory of Operation 3-2 System Overview Figure 3-4. Block Diagram – Source Lock Signal Paths – 20 GHz and 40 GHz Models Lightning 37xxxE MM PN: 10410-00303 Rev. A...
Page 76 3-2 System Overview Chapter 3 — Theory of Operation Figure 3-5. Block Diagram – Test Signal Paths – 65 GHz Models PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 77 Chapter 3 — Theory of Operation 3-2 System Overview Figure 3-6. Block Diagram – Source Lock Signal Paths – 65 GHz Models Lightning 37xxxE MM PN: 10410-00303 Rev. A...
Page 78: Analog Subsystem Assemblies
3-3 Analog Subsystem Assemblies Chapter 3 — Theory of Operation Analog Subsystem Assemblies The following sections briefly describe the major assemblies that comprise the VNA Analog Subsystem. Descriptions of the functions performed by each assembly are also included. Signal Source Module The Signal Source Module consists of the items listed below;...
Page 79: Test Set Module, 20 Ghz And 40 Ghz Instruments
Chapter 3 — Theory of Operation 3-3 Analog Subsystem Assemblies The signal is switched to the Down-Converter Assembly only when the VNA is operating in the low end portion of its frequency range. The frequency of the output signal from the Source Down Converter Assembly is 40 MHz to 2 GHz.
Page 80: Test Set Modules - 65 Ghz Instruments
3-3 Analog Subsystem Assemblies Chapter 3 — Theory of Operation Both Reference signals and both Test Signals are routed into the Sampler/ Down Conversion Modules for down conversion to 2.5 MHz (3rd IF signal). This down conversion is accomplished by using LO1 and LO2 found on the A1 and A2 PCBs.
Page 81: A7 Pcb 10 Mhz Timebase
Chapter 3 — Theory of Operation 3-3 Analog Subsystem Assemblies A7 PCB 10 MHz Timebase The 10 MHz system clock is based on an OCXO mounted on the A7 PCB. The A7 PCB also contains a fixed 2.42 MHz Local Oscillator and an 80 kHz calibration signal. The 80 kHz calibration signal is periodically sent to the A3, A4, and A6 PCBs for self-calibration of IF amplifier circuits.
Page 82 3-3 Analog Subsystem Assemblies Chapter 3 — Theory of Operation Figure 3-7. Digital Subsystem Block Diagram 3-12 PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 83: A8, Source Lock/Signal Separation And Control Pcb
Chapter 3 — Theory of Operation 3-3 Analog Subsystem Assemblies A8, Source Lock/Signal Separation and Control PCB The Source Lock Phase Comparator circuit on the A8 Source Lock/ Signal Separation Control PCB compares the Source Lock (Reference A/B) signal from the Receiver Module with a signal derived from the 10 MHz reference oscillator.
Page 84: Digital Subsystem Assemblies
3-4 Digital Subsystem Assemblies Chapter 3 — Theory of Operation A5 A/D Converter PCB The A5 A/D Converter PCB contains a six-channel, two stage, switched-filter sample-and-hold circuit and a 20 bit A/D converter. Each of the six DC signals from the A3, A4, and A6 PCBs are input to a separate channel of the PCB.
Page 85: A9 Main Processor Pcb Assembly
Chapter 3 — Theory of Operation 3-4 Digital Subsystem Assemblies A9 Main Processor PCB Assembly The major components that comprise the A9 Main Processor PCB are: • 68040 Microprocessor (with integrated co-processor) – This is the CPU for the 37xxxE system. •...
Page 86: A15 Graphics Processor Pcb Assembly
3-5 Main Chassis Assemblies Chapter 3 — Theory of Operation The A14 PCB also provides the interface to the Front Panel A19 and A20 PCBs. A15 Graphics Processor PCB Assembly This PCB assembly contains circuitry that simultaneously drives both the LCD display and an external VGA monitor (if used) as follows: •...
Page 87: A18 Rear Panel Interface Pcb
Chapter 3 — Theory of Operation 3-5 Main Chassis Assemblies • Front panel casting A18 Rear Panel Interface PCB This PCB assembly contains the rear panel connectors listed below. It also includes the associated circuitry and cabling interfaces that link these connectors (and the rear panel fan assembly) to the A17 Motherboard PCB and other assemblies within the VNA.
Page 88: Power Supply Module
3-5 Main Chassis Assemblies Chapter 3 — Theory of Operation Power Supply Module The Power Supply Module is a single self-contained assembly mounted on the left side wall of the chassis, behind the LCD. This module provides: • Unregulated +5, +9, ±18, and ±27 VDC supply voltages to the other assemblies of the 37000E •...
Page 89: Chapter 4-Operational Performance Tests
Chapter 4 — Operational Performance Tests Introduction The tests in this chapter provide a means of fully testing the 37xxxE VNA system for proper operation and signal stability. These tests are intended to be used as a periodic check of the operational functionality of the VNA.
Page 90: Checking The Service Log
4-2 Checking the Service Log Chapter 4 — Operational Performance Tests Checking the Service Log Checking the service log consists of viewing the entries written into the log. The service log contains historical information about instrument condition and any failures that may have occurred.
Page 91 Chapter 4 — Operational Performance Tests 4-2 Checking the Service Log • Any other error messages in the service log may indicate an instrument problem and should be investigated. Refer to Chapter 7, “Troubleshooting”for additional information. The CLEAR SERVICE LOG menu selection will immediately and permanently clear all the error message entries from the service log.
Page 92: Self Test
4-3 Self Test Chapter 4 — Operational Performance Tests Self Test The self test performs a series of tests that verify that various internal VNA circuits are functional and operating properly. Procedure To start the self test: 1. Press the Option Menu key (Enhancement key group) to display the OPTIONS menu. 2.
Page 93: Performance Tests
VNA and the PC. • Anritsu 365X calibration kit that matches the test port connectors of the VNA must be used. A sliding termination is required only if the Source Match or Directivity tests are to be performed. Only the female components of the calibration kit will be used.
Page 94: Additional Required Equipment
• The Frequency Accuracy test requires an EIP brand frequency counter. Most models are acceptable, but GPIB, Band 3, and External 10 MHz reference input capabilities are required. • The Port 1 Power test requires an Anritsu Model ML24XX power meter with an appropriate power sensor. Other meters and sensors, as shown in Table 1-3, “Recommended Test Equipment”...
Page 95: Running The Tests
This test checks the ability of the instrument to maintain source phase lock at minimum source power. If the test fails, performing a Source Lock Threshold calibration may solve the problem. If this does not solve the problem, it must be corrected by a trained Anritsu Service Engineer. Source and LO Tests These tests use built-in VNA diagnostics to check all phase lock loop error voltages of the RF source, LO1, and LO2 of the down conversion section.
Page 96: Transmission Noise And Stability Test
This is identical to Transmission Noise and Stability except that full reflections are installed on the Test Ports, rather than an RF cable. If the test fails, check the Option 15 front panel cables (if installed), then contact a trained Anritsu Service Engineer.
Page 97: Frequency Accuracy Test
A precision 10 MHz reference signal (such as that found on an Anritsu MG369XA series synthesizer) should be connected to the rear panel of the counter. Do not use the 37000E 10 MHz OUT as a reference for the counter.
Page 98: Source Match Test
If failures occur, details are written to the VNA service log for evaluation by a trained Anritsu Service Engineer. This test will continue indefinitely until stopped by the operator (using the Escape key or Cancel button) or when 20 errors have occurred.
Page 99: 37Xxxe Log Magnitude Dynamic Accuracy Test
0 dBm. An external step attenuator that has been accurately characterized for 2 GHz at the Anritsu calibration lab is used. Measurements are made on each step of the attenuator after a CW 12 Terms calibration at 2 GHz with 10 Hz IF Bandwidth has been performed and the VNA has been set to S21 measurement mode.
Page 100 3670K50-2 Cable Test Setup for Lightning 37247E, 37269E, 37347E, and 37369E VNAs 1 – Anritsu Lightning 37xxxE VNA 2 – Anritsu 33KFKF50 Adapter from 3652A Calibration Kit 3 – Anritsu 3670K50-2 Cable 4 – Anritsu 33KKF50B Adapter from 3652A Calibration Kit 5 –...
Page 101 1 – Anritsu Lightning 37xxxE VNA 2 – Anritsu 34VFKF50 Adapters 3 – Anritsu 3670K50-2 Cable 4 – Anritsu 33KK50B Adapter from 3652A Calibration Kit 5 – USB Memory Device from 3652A Calibration Kit 6 – Insert calibration standards here Figure 4-5.
Page 102 4-5 37xxxE Log Magnitude Dynamic Accuracy Test Chapter 4 — Operational Performance Tests d. Select C.W. (1 POINT) e. Change C.W. FREQUENCY to 2 GHz and then select NEXT CAL STEP f. Change PORT 1 CONN to K(F) g. Change PORT 2 CONN to K(M) h.
Page 103 11. Set all four switches on the SC3796 Step Attenuator Control Box to 0 dB. Figure 4-6. Anritsu SC3796 Step Attenuator Control Box 12. Install the ribbon cable connector plug of the step attenuator to the DIP socket of the SC3796 Step Attenuator Control Box.
Page 104: Analysis Of The Measurement
4-5 37xxxE Log Magnitude Dynamic Accuracy Test Chapter 4 — Operational Performance Tests 22. Set both switches (10 dB and 20 dB) back to 0 dB position. 23. Toggle the third switch from the right to 40 dB position to set the step attenuator to 40 dB attenuation. 24.
Page 105 Chapter 4 — Operational Performance Tests 4-5 37xxxE Log Magnitude Dynamic Accuracy Test 42. Subtract the values of Column D from Column C to compute the values for Lower Limit. Record the computed values in Column F. • The uncertainty values in Column C of Table A-2, “Log Magnitude/Dynamic Accuracy Test”...
Page 106 4-5 37xxxE Log Magnitude Dynamic Accuracy Test Chapter 4 — Operational Performance Tests 4-18 PN: 10410-00303 Rev. A Lightning 37000E MM...
Page 107: Chapter 5-System Performance Verification
Chapter 5 — System Performance Verification Introduction This chapter provides specific procedures to be used to verify that the VNA is making accurate, traceable S-parameter measurements. The operational performance tests described in Chapter 4 should be performed at least once annually, and prior to verifying the system performance test procedures in this chapter. Please ensure that you have read and fully understand the servicing concepts for the VNA presented in Chapter 1 prior to continuing with this chapter.
Page 108: Verification Software
Factory Standard 37xxxE Vector Network Analyzer System (at Anritsu). The factory Standard 37xxxE VNA 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 109: Verification Procedure
Note Use of non-Anritsu calibration or verification kits is not supported. • Anritsu 37000 Verification Software which is included in the Verification Kit for the connector type in use. Install the Lightning 37000 VNA Verification Software on the PC Controller prior to starting the Note procedure below.
Page 110: Vna Traceability
5-5 VNA Traceability Chapter 5 — System Performance Verification VNA Traceability According to the International Vocabulary of Basic and General Terms in Metrology (VIM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 2nd ed., 1993, definition 6.10, traceability is defined as: “the property of the result of a measurement or the value of a standard that can be related to stated references through an unbroken chain of comparisons all having stated uncertainties.”...
Page 111: Vertical Traceability Path
The horizontal path shows the conventional traceability chain for the verification kit. The stated uncertainty in the verification program comes from three major sources: • NIST Report • Anritsu Reference Standards • Device-under-test (DUT) Lightning 37xxxE MM PN: 10410-00303 Rev. A...
Page 112 5-5 VNA Traceability Chapter 5 — System Performance Verification PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 113: Chapter 6-Adjustments
Chapter 6 — Adjustments Introduction This chapter contains procedures that are used to restore the calibration of the VNA signal source and the related source lock system assemblies. Use these procedures after various signal source related assemblies have been replaced due to troubleshooting or repair activities. Please insure that you have read and fully understand the servicing concepts for the VNA presented in Chapter 1, “General Information”...
Page 114: Lo2 Calibration
LO2 Calibration This procedure uses the VNA internal diagnostics and calibration menus to adjust the A2 second LO PCB assembly. Perform this calibration procedure if: • The A2 PCB is replaced. • The display of DIAGNOSTICS | TROUBLESHOOTING | LO2 MAIN PHASELOCK VOLTAGE is outside of the limit lines.
Page 115: Frequency Calibration
Refer to Table 1-3 on page 1-8 for additional information about the following equipment: • Anritsu MF241XB Frequency Counter or equivalent EIP brand counter equipped with Band 3 Input and GPIB capability RF/Microwave Cable • GPIB cable (Anritsu 2100-2, or equivalent)
Page 116 6-4 Frequency Calibration Chapter 6 — Adjustments HARDWARE OPTIONS DIAGNOSTICS HARDWARE CALIBRATIONS CALIBRATIONS (FOR SERVICE (FOR SERVICE TRIGGERS START SELF TEST ONLY) ONLY) READ SERVICE LOG REAR PANEL START SOURCE OUTPUT FREQ CALIBRATION INSTALLED OPTIONS CALIBRATION DIAGNOSTICS PERIPHERAL TESTS PREVIOUS MENU MULTIPLE SOURCE CALIBRATION CONTROL...
Page 117 Chapter 6 — Adjustments 6-4 Frequency Calibration 3. Follow the directions displayed on the screen to set-up and connect the frequency counter to the VNA. Refer also to Figure 6-2 below. Select START SOURCE FREQ CALIBRATION from the menu (above). 4.
Page 118: Post Calibration Actions
6-4 Frequency Calibration Chapter 6 — Adjustments Post Calibration Actions 1. After the calibration process is completed, perform the following actions, as appropriate: If calibration passes: 2. Save the calibration data to the SD Card as follows: 3. Press the Option Menu key in the Enhancement key group to display the OPTIONS menu. 4.
Page 119: Rf Power/Alc Calibration
Table 1-3, “Recommended Test Equipment” on page 1-8 Chapter 1, “General Information” additional information about the following equipment: • Anritsu ML24XXA with Version 2.02 or later, with Anritsu Power Sensors MA2474A (use sensor SC6230 for 65 GHz models) • GPIB cable, Anritsu 2100-2, or equivalent calibration.
Page 120: Post Calibration Actions
Power Sensor Anritsu ML24XXA Power Meter 1 – Anritsu 37xxxE VNA 2 – Dedicated GPIB Ports and Cable 3 – Anritsu ML24XXA Power Meter 4 – Power Sensor and Cable Figure 6-3. Equipment Setup for RF Power/ALC Calibration 4. Follow the directions displayed on the VNA screen until the calibration is completed.
Page 121: Source Lock Threshold
Chapter 6 — Adjustments 6-6 Source Lock Threshold Source Lock Threshold This procedure uses the VNA internal diagnostics and calibration menus to adjust the source lock threshold of the phase-lock loop. Perform this calibration procedure: • If the Low Power Phase Lock Test (Chapter 4) fails. •...
Page 122 6-6 Source Lock Threshold Chapter 6 — Adjustments 6-10 PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 123: Chapter 7-Troubleshooting
Insufficient care or training will often result in damage to the instrument and cause increased expense and down time. Note that every Anritsu Service Center has factory-trained Service Engineers who can solve all 37xxxE operation problems quickly and reliably, often with warranted repairs.
Page 124: Power-Up Problems
7-2 Power-Up Problems Chapter 7 — Troubleshooting Power-Up Problems If the instrument is non-functional when power-up is attempted, proceed as follows: The main power supply for the instrument is mounted on the left side of the instrument chassis. Remove the power cord before attempting to remove this supply. Simply turning off the power is not Warning sufficient because hazardous voltages are present under the clear plastic cover whenever a power cord is in place.
Page 125 Chapter 7 — Troubleshooting 7-2 Power-Up Problems 2. Check the power supply voltages at J4 and J13 of the motherboard. The correct voltages and acceptable AC ripple are listed in Table 7-1 below: Table 7-1. DC Power Supply Voltage Checks Connect To Common Measure...
Page 126: Boot-Up Problems
7-3 Boot-Up Problems Chapter 7 — Troubleshooting Boot-Up Problems Boot-up Process Sequences The boot-up process is controlled by the firmware resided in the internal flash memory on the A9 PCB assembly. The boot-up activities include: • Testing and initializing the A9 Main Processor PCB •...
Page 127 Chapter 7 — Troubleshooting 7-3 Boot-Up Problems Figure 7-2 below, the boot-up troubleshooting procedure flow is shown. START Connect an external Monitor to the VNA rear panel VGA connector Turn On Instrument External Monitor Stopped at "Waiting LCD displays Boot displays Firmware for Server.."? Firmware Version?
Page 128: Troubleshooting Boot-Up Problems
7-4 Other Boot-Up Problems Chapter 7 — Troubleshooting • Conducting an IF Calibration • Resetting and loading the front panel state that was in effect prior to the last power down • Starting the measurement process The system software fully controls the VNA system after boot-up (with operator intervention and Note guidance).
Page 129: Warming Up
“RF Unleveled” appears with the Source Power set to 0 dB (Default) or lower, a problem exists with the 37000E. Numerical data with no easily understood identifying labels is of use only to Anritsu Service personnel in the process of PC board repair. PCB repair is a factory-only function.
Page 130: Diagnostic Displays
7-6 Diagnostic Displays Chapter 7 — Troubleshooting • This indicates “out-of-range”. The internal 37xxxE DVM was not able to measure the voltage. This is particularly useful information when troubleshooting IF Calibration errors. Diagnostic Displays The Diagnostic displays listed below are useful in troubleshooting the 37xxxE problems to the replaceable subassembly level.
Page 131: Error Messages During Measurements
If the condition persists, the difficult nature of this problem means that the 37xxxE should be returned to an Anritsu Service Center where factory-trained Service Engineers and replacement parts are available. If the error message also contains the prefixes A, B, or C, the corrective action is found in Note paragraphs farther down in this section.
Page 132: Measurement Accuracy Problems
“Adjustments”) may solve the problem. If the problem persists, the difficult nature of this problem means the best solution is to return the VNA to an Anritsu Service Center for repair. IF Cal Failures (during self-test or measurement) If only “Test A” is noted on the front panel error messages or <OVL> is present in the Service Log only in the “A”...
Page 133: Insufficient System Dynamic Range
Chapter 7 — Troubleshooting 7-9 Non-Response or Other Unusual Behavior The calibration selected should be 12 Term. Also perform the calibration using sliding terminations rather than broadband fixed terminations. Insufficient System Dynamic Range Select “Include Isolation” and increase the RF Source power during the calibration setup. Before measuring the Isolation Devices during the calibration, press the Video IFBW key and select “10 Hz Minimum”.
Page 134 7-9 Non-Response or Other Unusual Behavior Chapter 7 — Troubleshooting 1 – Go to Figure 7-4 on page 7-13 Figure 7-3. Error Code DE Lock Failure Troubleshooting – 65 GHz Models Only (1 of 3) 7-12 PN: 10410-00303 Rev. A Lightning 37000E MM...
Page 135 Chapter 7 — Troubleshooting 7-9 Non-Response or Other Unusual Behavior Go to Fails in Forward only ? Fails below 38 GHz? Fails above 38 Fails above 38 GHz? GHz? not logical Normal power at Normal power at Normal power at Port 1 (S21)? Port 1(S21)? Port 1(S21)?
Page 136 7-9 Non-Response or Other Unusual Behavior Chapter 7 — Troubleshooting Fails Reverse not logical only? Fails below 38 GHz? Fails above 38 Fails above 38 GHz? GHz? not logical Normal power at Normal power at Normal power at Port 2 (S12)? Port 2 (S12)? Port 2 (S12)? A8, transfer sw...
Page 137 Chapter 7 — Troubleshooting 7-9 Non-Response or Other Unusual Behavior Lock Failure DE (error code 6XXX) Verify Front Panel RF cables (Opt.15 only) are connected correctly Fails both Forward and Fails Forward Fails Reverse Reverse? only? only? Normal power at Normal power at Normal power at Port 1?
Page 138 7-9 Non-Response or Other Unusual Behavior Chapter 7 — Troubleshooting Table 7-2. Typical Reference Signal Values in dBm - 65 GHz Models Only Measurement in dBm Sampler/Down Conversion Frequency SQM In SDM Out MUX J4 MUX J1 Module Input 20 GHz –26 37 GHz –28...
Page 139: Chapter 8-Removal And Replacement Procedures
37000E instruments are covered by a three year factory warranty. Unauthorized repair attempts by Caution non-Anritsu service personnel will void this warranty. All RF connections (at the Wxxx cables) should be torqued to 8 lbf·in (“8 inch-pounds”) using the 5/16” 01-201 torque end wrench from a Calibration Kit.
Page 140: Covers
8-3 Covers Chapter 8 — Removal and Replacement Procedures Covers Adjustment and troubleshooting operations require removal of the top cover. Replacement of some VNA assemblies and parts require removal of all covers. The following procedures describe this process. It is only necessary to loosen the VNA handle assemblies to remove the top, bottom, or side covers. Note However, if the front panel is to be removed, remove the handle assemblies at this time.
Page 141 Chapter 8 — Removal and Replacement Procedures 8-3 Covers Figure 8-2. 37xxxE All Covers Exploded View (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev. A...
Page 142: Prerequisites
8-3 Covers Chapter 8 — Removal and Replacement Procedures 1 – Chassis Cover Bottom 2 – Chassis Cover Left Side 3 – Chassis Cover Top 4 – Small Card Cage Cover 5 – Large Card Cage Cover 6 – Chassis Cover Right Side 7 –...
Page 143 Chapter 8 — Removal and Replacement Procedures 8-3 Covers • Remove the feet from the two top corners at the rear of the VNA (Figure 8-1 on page 8-2 above). • Remove the center screw from the rear of the top cover. •...
Page 144: A1 To A16 Pcbs
8-4 A1 to A16 PCBs Chapter 8 — Removal and Replacement Procedures A1 to A16 PCBs This section provides instructions for removing and replacing the A1 through A9 and A13 through A16 PCBs, which are located underneath the covers of the large and small card-cages, respectively. Prerequisites •...
Page 145: Identification
Chapter 8 — Removal and Replacement Procedures 8-5 Remove/Replace A9 PCB Backup Battery Identification A9 PCB Assembly PCB Assemblies A13-A16 Printed Circuit Board Assemblies, A1-A8 Figure 8-3. A1 to A16 PCB Assemblies Removal Diagram (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 146: Prerequisites
8-5 Remove/Replace A9 PCB Backup Battery Chapter 8 — Removal and Replacement Procedures 1 – Front Panel 2 – A13, A14, A15, and A16 PCBs 3 – PCB Covers 4 – PCB Covers 5 – A9 Main Processor PCB – with Backup Battery – 3-633-43 6 –...
Page 147: Signal Source Modules
“Adjustments”. Required Equipment • Connector 5/16” torque end wrench set to 8 lbf·in inch, Anritsu Model 01-201 or equivalent. Throughout these procedures, always use the 5/16” torque end wrench set to 8 lbf·in for connecting the Signal Source Module semi-rigid coaxial lines and RF/microwave components.
Page 148: Identification
8-6 Signal Source Modules Chapter 8 — Removal and Replacement Procedures Identification The figure below (Figure 8-4) shows the locations of major assemblies in the chassis top-side. The figure following (Figure 8-5, “Signal Source Module Assemblies Removal Details” on page 8-12) shows the major Signal Source Assembly Module component locations.
Page 149 Chapter 8 — Removal and Replacement Procedures 8-6 Signal Source Modules 1 – Test Port 1 2 – Test Port 2 3 – Front Panel Assembly 4 – A19 Front Panel Switch PCB – D44279-3 – Behind Front Panel 5 – A20 Front Panel Switch Control PCB – D44280-3 – Behind Front Panel 6 –...
Page 150: Prerequisites
8-6 Signal Source Modules Chapter 8 — Removal and Replacement Procedures 61184-3 A21A2 PCB D45244 Switched Filter D27532 Src Dwn Conv Mod ND68037 48512-3 2-20 GHz YIG Osc A21A1 PCB 1 – 2-20 GHz YIG Oscillator Assembly – ND68037 2 – A21A2 Source Control PCB Assembly – 61184-3 3 –...
Page 151: Signal Source Module Assembly Removal Procedure
Chapter 8 — Removal and Replacement Procedures 8-6 Signal Source Modules Signal Source Module Assembly Removal Procedure Use the following procedure to remove the Signal Source Module from the chassis. This step is necessary before any of the module components can be removed or replaced. 1.
Page 152: A21A2 Source Control Pcb
8-7 A21A2 Source Control PCB Chapter 8 — Removal and Replacement Procedures A21A2 Source Control PCB Use the following procedure to remove/replace the A21A2 Source Control PCB assembly. Prerequisites • Switch the VNA power to off and remove the power cord. •...
Page 153: A21A1 Source Yig Bias Control Pcb
Chapter 8 — Removal and Replacement Procedures 8-8 A21A1 Source YIG Bias Control PCB A21A1 Source YIG Bias Control PCB Use the following procedure to remove/replace the A21A1 Source YIG Bias Control PCB assembly. Prerequisites • Switch the VNA power to off and remove the power cord. •...
Page 154: Switched Filter Assembly
8-9 Switched Filter Assembly Chapter 8 — Removal and Replacement Procedures Switched Filter Assembly Use the following procedure to remove/replace the Switched Filter assembly. Prerequisites • Switch the VNA power to off and remove the power cord. • Remove all covers (see Section 8-3 “Covers”...
Page 155: Source Down Converter Assembly
Chapter 8 — Removal and Replacement Procedures 8-10 Source Down Converter Assembly 8-10 Source Down Converter Assembly Use the following procedure to remove/replace the Down Converter assembly. Prerequisites • Switch the VNA power to off and remove the power cord. •...
Page 156: Yig Oscillator Assembly
8-11 YIG Oscillator Assembly Chapter 8 — Removal and Replacement Procedures 8-11 YIG Oscillator Assembly Use the following procedure to remove/replace the YIG (Yttrium Iron Garnet) Oscillator assembly. Prerequisites • Switch the VNA power to off and remove the power cord. •...
Page 157: A24 Vme Bus Terminator Pcb
Chapter 8 — Removal and Replacement Procedures 8-12 A24 VME Bus Terminator PCB 8-12 A24 VME Bus Terminator PCB This section provides instructions for removing and replacing the A24 VME Bus Terminator PCB assembly. Lightning 37xxxE MM PN: 10410-00303 Rev. A 8-19...
Page 158: Identification
8-12 A24 VME Bus Terminator PCB Chapter 8 — Removal and Replacement Procedures Identification Rear Panel A24 VME Bs Trm PCB D36524-3 A17 Motherboard PCB Right Side Left Side Front Panel TP 2 Figure 8-6. Location of the A24 VME Bus Terminator PCB Assembly (1 of 2) 8-20 PN: 10410-00303 Rev.
Page 159: Prerequisites
Chapter 8 — Removal and Replacement Procedures 8-12 A24 VME Bus Terminator PCB 1 – Test Port 1 2 – Test Port 2 3 – A17 Motherboard PCB 4 – A24 VME Bus Terminator PCB – D36624-3 5 – Front Panel 6 –...
Page 160: Front Panel Assembly
8-13 Front Panel Assembly Chapter 8 — Removal and Replacement Procedures 8-13 Front Panel Assembly This section provides instructions for removing and replacing the VNA Front Panel assembly. Required Equipment • Open-end wrench, 1 inch • Hex driver, 3/32”, ball end 8-22 PN: 10410-00303 Rev.
Page 161: Identification
Chapter 8 — Removal and Replacement Procedures 8-13 Front Panel Assembly Identification 1 – Front Panel Assembly 2 – Mounting screws Figure 8-7. Removal of Front Panel Assembly Lightning 37xxxE MM PN: 10410-00303 Rev. A 8-23...
Page 162 8-13 Front Panel Assembly Chapter 8 — Removal and Replacement Procedures A36J2 A36J1 A17J3 A17J2 TP 2 A17J1 Test Set Bottom View with Front Panel to right. The bottom side center front panel mounting screw is accessible with the instrument upside down. Shown here is a Lightning 37269E VNA. In other instrument models, the modules and their positioning vary, but Front Panel Mounting Screw is in the same location 1 –...
Page 163 Chapter 8 — Removal and Replacement Procedures 8-13 Front Panel Assembly LCD Display 3-15-100 Backlight Ivr Dvr PCB 3-2300-1635 A19 Frt Pnl Sw PCB D44279-3 A20 Frt Pnl Sw Cntrl D44280-3 Figure 8-9. Front Panel Assembly (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 164 8-13 Front Panel Assembly Chapter 8 — Removal and Replacement Procedures Front Panel Assembly and Related PCS 1 – Front Panel Assembly 2 – A20 Front Panel Switch Control PCB – D44280-3 3 – A19 Front Panel Switch PCB – D33279-3 4 –...
Page 165: Prerequisites
On instruments with Option 15V (found only on 65 GHz instruments), there is a very high risk of Note damage to RF cables and connectors during re-assembly. Such instruments should be returned to an Anritsu Service Center for repairs to the front panel assembly. Remove/Replace Procedure 1. Place the VNA in the right side up position.
Page 166: Liquid Crystal Display (Lcd) Assembly
PCB have been determined to be functioning correctly, replacing the LCD will likely solve display problems. Due to the likelihood of damage to RF cables and connectors, Anritsu advises to NOT remove the Caution front panel of 65 GHz instruments having Option 15V to perform this repair.
Page 167: Power Supply Module
Chapter 8 — Removal and Replacement Procedures 8-15 Power Supply Module 8-15 Power Supply Module This section describes removing and replacing the Power Supply module that is mounted on the frame of the instrument behind the LCD. Prerequisites 1. Remove the power cord from the instrument. 2.
Page 168: Identification
8-15 Power Supply Module Chapter 8 — Removal and Replacement Procedures Identification Pwr Supply Module ND63006 Ethernet Hub ND72047 Front Panel Test Set Deck Figure 8-10. Power Supply Module – ND63003 and Ethernet Hub Assembly – ND72047 (1 of 2) 8-30 PN: 10410-00303 Rev.
Page 169: Power Supply Removal
Chapter 8 — Removal and Replacement Procedures 8-15 Power Supply Module 1 – Front Panel – Removed here for clarity. 2 – Test Set Deck Chassis – Mounted below the PCB chassis – Removed here for clarity. 3 – Ethernet Hub – ND72047 – Mounted in bracket – Bracket assembly fastens to chassis center plate in Power Supply Module bay.
Page 170: Power Supply Installation
8-15 Power Supply Module Chapter 8 — Removal and Replacement Procedures Power Supply Installation 1. Attach the Line Voltage wires to the terminals as shown in Figure 8-11 below. Green/Yellow Blue Bro wn 1 – Green/Yellow Wire and Connector 2 – Blue Wire and Connector 3 –...
Page 171: Rear Panel Assembly
Chapter 8 — Removal and Replacement Procedures 8-16 Rear Panel Assembly 8-16 Rear Panel Assembly This section provides instructions for removing and replacing the Rear Panel Assembly. Required Equipment • Phillips Screwdriver (#2) • Open-end Wrenches (various sizes) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 172: Identification - Rear Panel Assembly
8-16 Rear Panel Assembly Chapter 8 — Removal and Replacement Procedures Identification – Rear Panel Assembly Figure 8-12. Rear Panel – Inside Components – A18 PCB, Fan, and AC Adapter Module (1 of 2) 8-34 PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 173 Chapter 8 — Removal and Replacement Procedures 8-16 Rear Panel Assembly 1 – Rear Panel 2 – Flat head Phillips screw, 6×32 × 0.75”, four places 3 – Flat #6 washer, four places 4 – Standoff #6×0.87”, four places 5 – Vibration isolation grommet, #6, four places 6 –...
Page 174: Identification - Rear Panel Outside Components
8-16 Rear Panel Assembly Chapter 8 — Removal and Replacement Procedures Identification – Rear Panel Outside Components Remove Rear Panel Connector Screws before removing A18 Rear Panel PCB – 61011-3 1 – Rear Panel 2 – GPIB Connector Hex Mounting Standoff Screws –...
Page 175: Remove/Replace Procedure
Chapter 8 — Removal and Replacement Procedures 8-16 Rear Panel Assembly • Remove all covers (Section 8-3 “Covers” on page 8-2 above). Note It is not necessary to remove the rear panel to remove the A18 rear panel PCB. Remove/Replace Procedure 1.
Page 176: A18 Rear Panel Pcb
8-17 A18 Rear Panel PCB Chapter 8 — Removal and Replacement Procedures 8-17 A18 Rear Panel PCB This section provides instructions for removing and replacing the A18 Rear Panel PCB assembly. Required Equipment • Nut Driver, 9/32 inch • Nut Driver, 3/16 inch •...
Page 177: Fan Assembly
Chapter 8 — Removal and Replacement Procedures 8-18 Fan Assembly 8-18 Fan Assembly This section provides instructions for removing and replacing the Rear Panel Fan Assembly. Identification See the following figures: • Figure 8-12, “Rear Panel – Inside Components – A18 PCB, Fan, and AC Adapter Module” on page 8-34 •...
Page 178: File Server Device
8-19 File Server Device Chapter 8 — Removal and Replacement Procedures 8-19 File Server Device This section provides instructions for removing and replacing the File Server Device assembly. 8-40 PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 179: Identification
Chapter 8 — Removal and Replacement Procedures 8-19 File Server Device Identification 8 GB SD Card w/ OS ND72104 SD Card Reader ND72103 File Server Device ND72103 Rear Panel Figure 8-14. File Server Device with SD Card Reader – Outside Chassis View (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 180 8-19 File Server Device Chapter 8 — Removal and Replacement Procedures Rear Panel – Outside – File Server Device with SD Card Reader 1 – Rear Panel – Outside View 2 – PS/2 Female Connector – Cable – Bulkhead PS/2 Female to pin connector – Connects to A17 PCB J16. 3 –...
Page 181 Chapter 8 — Removal and Replacement Procedures 8-19 File Server Device File Server Device SD Card Reader ND72103 8 GB SD Card w/ OS ND72104 Rear Panel Figure 8-15. File Server Device with SD Card Reader – Inside Chassis View (1 of 2) Lightning 37xxxE MM PN: 10410-00303 Rev.
Page 182: Prerequisites
8-19 File Server Device Chapter 8 — Removal and Replacement Procedures Inside Rear Panel – File Server Device with SD Card Reader 1 – Rear Panel – Inside View 2 – Cable – Bulkhead RJ-45 Female to Ethernet CAT-5 RJ45 Male – Connects to Ethernet Hub Port 5 and Female connector mounts on rear panel.
Page 183: Usb Hub Assembly
Chapter 8 — Removal and Replacement Procedures 8-20 USB Hub Assembly 8-20 USB Hub Assembly This section provides instructions for removing and replacing the File Server Device assembly Identification USB Type B Port USB Type A Port Front Panel USB Hub 2000-1632 USB Hub and Front Panel USB Port 1 –...
Page 184: Remove/Replace Procedure
8-20 USB Hub Assembly Chapter 8 — Removal and Replacement Procedures • Position the VNA upside down. Remove/Replace Procedure 1. Remove USB cable coming from the Rear Panel USB Port which is connected to Hub Port 5. 2. Remove the screws holding the USB hub bracket in place. 3.
Page 185: Test Set Module Assemblies
Tests”) is also strongly suggested. Required Equipment • Connector torque wrench (5/16 inch), Anritsu Model 01-201, or equivalent • 1 inch open-end wrench and 3/32 inch ball end hex wrench (only if couplers are to be replaced) Throughout these procedures, always use the 5/16” connector torque wrench for connecting the Test Set Module semi-rigid coaxial lines and RF/microwave components.
Page 186: Test Set Modules - Model 37247E
8-22 Test Set Modules – Model 37247E Chapter 8 — Removal and Replacement Procedures 8-22 Test Set Modules – Model 37247E “Test Set Module Removal/Replacement Procedures” on page 8-59 for the removal/replacement procedure. ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 46535 Power Amplifier...
Page 187 Chapter 8 — Removal and Replacement Procedures 8-22 Test Set Modules – Model 37247E 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – 6 dB Fixed Attenuator – 43KC-6 6 –...
Page 188: Test Set Modules - Model 37347E
8-23 Test Set Modules – Model 37347E Chapter 8 — Removal and Replacement Procedures 8-23 Test Set Modules – Model 37347E “Test Set Module Removal/Replacement Procedures” on page 8-59 for the removal/replacement procedure. ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 46535 Power Amplifier...
Page 189 Chapter 8 — Removal and Replacement Procedures 8-23 Test Set Modules – Model 37347E 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – Bias Tee – 48383 6 –...
Page 190: Test Set Modules - Model 37269E
8-24 Test Set Modules – Model 37269E Chapter 8 — Removal and Replacement Procedures 8-24 Test Set Modules – Model 37269E “Test Set Module Removal/Replacement Procedures” on page 8-59 for the removal/replacement procedure. ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 43KC-10 Power Amplifier...
Page 191 Chapter 8 — Removal and Replacement Procedures 8-24 Test Set Modules – Model 37269E 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – 3 dB Fixed Attenuator – 43KC-3 6 –...
Page 192: Test Set Modules - Model 37369E
8-25 Test Set Modules – Model 37369E Chapter 8 — Removal and Replacement Procedures 8-25 Test Set Modules – Model 37369E “Test Set Module Removal/Replacement Procedures” on page 8-59 for the removal/replacement procedure. ND61660 - 58437 Dwn Conv & Smp Mod ND61660 - 56650 43KC-3 Power Amplifier...
Page 193 Chapter 8 — Removal and Replacement Procedures 8-25 Test Set Modules – Model 37369E 1 – Test Port 1 2 – Port 1 Coupler – D29422 3 – Test Port 2 4 – Port 2 Coupler – D29422 5 – Step Attenuator, 40 GHz, 70 dB – 4612K 6 –...
Page 194: Test Set Modules - Model 37297E
8-26 Test Set Modules – Model 37297E Chapter 8 — Removal and Replacement Procedures 8-26 Test Set Modules – Model 37297E “Test Set Module Removal/Replacement Procedures” on page 8-59 for the removal/replacement procedure. 49247 60129 ND61660 - 58437 Port 1 37 GHz HPF Port 1 SQM Dwn Conv &...
Page 195 Chapter 8 — Removal and Replacement Procedures 8-26 Test Set Modules – Model 37297E 1 – Test Port 1 2 – Port 1 Coupler – ND52929 3 – Test Port 2 4 – Port 2 Coupler – ND52929 5 – 3 dB Fixed Attenuator – ND26178 6 –...
Page 196: Test Set Modules - Model 37397E
8-27 Test Set Modules – Model 37397E Chapter 8 — Removal and Replacement Procedures 8-27 Test Set Modules – Model 37397E “Test Set Module Removal/Replacement Procedures” on page 8-59 for the removal/replacement procedure. 49247 60129 ND61660 - 58437 Port 1 37 GHz HPF Port 1 SQM Dwn Conv &...
Page 197: Test Set Module Removal/Replacement Procedures
RF cabling, Phillips-head mounting screws, and unplugging bias cables. Replacement parts supplied by Anritsu have instructions where instructions are necessary. Take careful note of all warnings and notes printed on the first page of this chapter. RF connectors are easily damaged.
Page 198 8-27 Test Set Modules – Model 37397E Chapter 8 — Removal and Replacement Procedures 8-60 PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 199: Appendix A-Test Record
Appendix A — Test Record Introduction Use this appendix to print out and record test, calibration, and verification information. The following test records are available: • Section A-2 “37xxxE Log Magnitude Dynamic Accuracy Test Worksheet” on page A-2. • This appendix provides the test record that can be used to record the result of the Log Magnitude Dynamic Accuracy Test.
Page 200: 37Xxxe Log Magnitude Dynamic Accuracy Test Worksheet
A-2 37xxxE Log Magnitude Dynamic Accuracy Test Worksheet Appendix A — Test Record 37xxxE Log Magnitude Dynamic Accuracy Test Worksheet 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 201: 37Xxxe Log Magnitude Dynamic Accuracy Test Record
Appendix A — Test Record A-3 37xxxE Log Magnitude Dynamic Accuracy Test Record 37xxxE Log Magnitude Dynamic Accuracy Test Record Model: Serial Number: Date: Operator: Step Attenuator ID: Table A-2. Log Magnitude/Dynamic Accuracy Test – A – – B – –...
Page 202 A-3 37xxxE Log Magnitude Dynamic Accuracy Test Record Appendix A — Test Record PN: 10410-00303 Rev. A VectorStar MS4640A Series VNA MM...
Page 203: Appendix B-Connector Care
Pin Depth Problems Based on Anritsu precision components returned for repair, destructive pin depth of mating connectors is the major cause of failure in the field. When a precision component is mated with a connector having a destructive pin depth, damage will likely occur to the precision component’s connector. A connector is considered to have destructive pin depth when the center pin is too long in respect to the connector’s reference plane...
Page 204 Appendix B — Connector Care Before mating an unknown or new device with your VNA Port connectors or calibration devices, always measure the pin depth of the device’s connectors. Use a Anritsu Pin Depth Gauge, or equivalent, for these measurements (Figure B-1 below).
Page 205: Pin-Depth Tolerance
Appendix B — Connector Care B-2 Precautions Pin-Depth Tolerance The center pin of a precision connector has a tolerances measured in mils (one mil = 1/1000 inch). The connectors of test devices may not be precision types and they may not have the proper pin-depth. These connectors should be measured before mating to ensure suitability.
Page 206: Repair And Maintenance
• Dirt or foreign material in connector cavity. Repair and Maintenance Anritsu recommends that no maintenance other than cleaning be attempted by the customer. Any device with a suspected defective connector should be returned to Anritsu for repair and/or service when needed.
Page 207: Appendix C-Lightning 37000E Technical Data Sheet
The latest version of the Lightning 37xxxE Vector Network Analyzers Technical Date Sheet – 11410-00573 can be downloaded from the Anritsu Internet site at www.anritsu.com. This data sheet provides performance specifications for all of the model variants in the 37xxxE series.
Page 208 C-1 Introduction Appendix C — Lightning 37000E Technical Data Sheet PN: 10410-00303 Rev. A Lightning 37xxxE MM...
Page 209: Index
Excessive Ripple ......7-10 Anritsu 37xxx Test Software – 2300-178 ..1-4 Exchange Assembly Program .
Page 210 H to P Frequency Calibration ..... 6-3 Measurement Conditions ....5-1 Front Panel Assembly .
Page 211 R to V Stated References ......5-4 Stated Uncertainties ..... . .5-4 Ratio Measurement Systems .
Page 212 W to Y Video IF Bandwidth Test ....4-8 VNA Measurement ......5-4 Warnings VNA Traceability .
Page 214 Anritsu Company 490 Jarvis Drive Anritsu prints on recycled paper with vegetable soybean oil ink. Morgan Hill, CA 95037-2809 http://www.anritsu.com...

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Lightning 37247e Lightning 37347e Lightning 37269e Lightning 37369e Lightning 37297e Lightning 37397e

Anritsu Lightning 37 E Series Maintenance Manual

Chapter 1-General Information

Chapter 2-Replaceable Parts

Chapter 3-Theory Of Operation

Chapter 4-Operational Performance Tests

Chapter 5-System Performance Verification

Chapter 6-Adjustments

Chapter 7-Troubleshooting

Chapter 8-Removal And Replacement Procedures

Appendix A-Test Record

Appendix B-Connector Care

Appendix C-Lightning 37000E Technical Data Sheet

Quick Links

Troubleshooting

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