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Keysight N5264A Service Manual

Pna-x measurement receiver
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Keysight
N5264A PNA-X
Measurement Receiver
Notice: This document contains references to Agilent.
Please note that Agilent's Test and Measurement
business has become Keysight Technologies. For
more information, go to www.keysight.com.
Service Guide

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  • Page 1 Keysight N5264A PNA-X Measurement Receiver Notice: This document contains references to Agilent. Please note that Agilent’s Test and Measurement business has become Keysight Technologies. For more information, go to www.keysight.com. Service Guide...

  • Page 2: Safety Notices

    DOCUMENT OR ANY INFORMATION reproduce, release, perform, CONTAINED HEREIN. SHOULD display, or disclose commercial KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT computer software or WITH WARRANTY TERMS commercial computer software COVERING THE MATERIAL IN THIS...

  • Page 3: Table Of Contents

    Keysight Support, Services, and Assistance ........
  • Page 4 N5264A PNA-X Measurement Receiver ........
  • Page 5 Removing and Replacing the A1–A3 and Other Front Panel Subassemblies... . 7-9 Removing and Replacing the A10, A11, and A12 Boards  (For analyzers with serial numbers prefixed MY/SG/US5144 and below.) ... . . 7-13 Keysight N5264A Service Guide...
  • Page 6 Recovering from Hard Disk Drive Problems ........8-7 Keysight N5264A Service Guide...

  • Page 7: Safety And Regulatory Information

    Keysight Measurement Receiver PNA-X Service Guide Safety and Regulatory Information Information in This Chapter This chapter provides safety information that will help protect you and your network analyzer. It also contains information that is required by various government regulatory agencies.

  • Page 8: Safety Symbols

    Warning denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a warning note until the indicated conditions are fully understood and met. Keysight N5264A Service Guide...

  • Page 9: General Safety Considerations

    This product is designed for use in Installation Category II and Pollution Degree 2. Do not operate the analyzer with the outer cover removed for more than 30 minutes, as this could cause the analyzer to overheat which could result in costly damage. Keysight N5264A Service Guide...
  • Page 10 The measuring terminals on this instrument are designed to be used with external signals described in Measurement Category I, but NOT with external signals described in Categories II, III, and IV. The input of this instrument cannot be connected to the mains. Keysight N5264A Service Guide...

  • Page 11: Servicing

    LINE switch (disconnecting device). There are no replaceable fuses in the mains input or within the power supply assembly. Keysight personnel: after calibration is completed, attach four “calibration void if seal broken” stickers to the PNA as shown in Figure 1-1.
  • Page 12 Safety and Regulatory Information General Safety Considerations Figure 1-1 Location of Calibration Stickers on PNA Keysight N5264A Service Guide...

  • Page 13: Electrostatic Discharge Protection

    3. Connect the other end of the cable to the test port and remove the short from the cable. Figure 1-2 shows a typical ESD protection setup using a grounded mat and “ESD Supplies” on page 6-33 wrist strap. Refer to for part numbers. Keysight N5264A Service Guide...
  • Page 14 Safety and Regulatory Information Electrostatic Discharge Protection Figure 1-2 ESD Protection Setup Keysight N5264A Service Guide...

  • Page 15: Regulatory Information

    This is a marking to indicate product compliance with the Canadian Interference-Causing ICES/NMB-001 Equipment Standard (ICES-001). Direct Current. IP 2 0 The instrument has been designed to meet the requirements of IP 2 0 for egress and operational environment. Keysight N5264A Service Guide...

  • Page 16: Lithium Battery Disposal

    If the battery on the A17 CPU board assembly needs to be disposed of, dispose of it in accordance with your country’s requirements. If required, you may return “Contacting the battery to Keysight Technologies for disposal. Refer to Keysight” on page 2-8 for assistance.

  • Page 17: General Product Information

    Keysight Support, Services, and The Internet address (URL) for on-line assistance. page 2-8 Assistance Service and support options available. Calibration options available. Important information about shipping your measurement receiver to Keysight for service or repair.

  • Page 18: Maintenance

    Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally. Electrical Maintenance “Review the Principles of Connector Care” on page 3-3. Refer to Keysight N5264A Service Guide...

  • Page 19: Analyzer Options And Accessories Available

    Analyzer Options and Accessories Available Analyzer Options and Accessories Available To see a list of the options and accessories available for the network analyzers, including ordering information, refer to the Keysight PNA Family Microwave Network Analyzers Configuration Guide, available online at http://literature.cdn.keysight.com/litweb/pdf/5990-7745EN.pdf.

  • Page 20: Upgrades Available

    Refer to the previous section, Available” on page 2-3, for a complete description of each option upgrade. Table 2-1 Upgrades Available Upgrade Order Number Time Domain (Option 010) N5264AU-010 LO Source (Option 108) N5264AU-108 Fast CW Mode (Option 118) N5264AU-118 Keysight N5264A Service Guide...

  • Page 21: Required Service Test Equipment

    Required Service Test Equipment (Cont’d) Critical Specifications Recommended Al ternate Model Equipment Model or Part or Part Number Number Calibration and Verification Kits 3.5 mm calibration kit Freq: 10 MHz to 26.5 GHz 85052B 85052D P,T,V Keysight N5264A Service Guide...
  • Page 22 1/4 inch and 5/16 inch open-end Thin profile 8710-0510 A, R wrench 5/16 inch, open-end torque wrench 1.1 and 2.4 N-m (10 and 21 T, R (metric equivalent is 8 mm) in-lb) settings (for semi-rigid cables) Keysight N5264A Service Guide...
  • Page 23 USB flash ROM drive None P, A, R a. Unless specified otherwise, equipment listed is required for all measurement receiver options. b. P = Performance tests, A = Adjustments, T = Troubleshooting, R = Repair, V = System verification Keysight N5264A Service Guide...

  • Page 24: Keysight Support, Services, And Assistance

    Service and Support Options The analyzer’s standard warranty period is three-years from the time of initial delivery. All repairs require the analyzer to be shipped to the nearest Keysight Technologies service center. Extended warranty periods can be purchased with the initial product purchase.

  • Page 25: Shipping Your Instrument To Keysight For Service Or Repair

    General Product Information Keysight Support, Services, and Assistance If you do not have access to the Internet, please contact your Keysight field engineer. In any correspondence or telephone conversation, refer to the Keysight product by its model number and full serial number. With this information, the Keysight representative can determine whether your product is still within its warranty period.

  • Page 26: Tests And Adjustments

    Keysight Measurement Receiver PNA-X Service Guide Tests and Adjustments Information in This Chapter This chapter contains procedures to help you check, verify, and adjust your PNA. — The checks verify the operation of the assemblies in your analyzer. — The verification compares the operation of your analyzer to a gold standard.

  • Page 27: Before You Begin

    To reduce the chance of electrostatic discharge, follow all of the recommendations outlined in “Electrostatic Discharge Protection” on page 1-7, for all of the procedures in this chapter. Keysight N5264A Service Guide...

  • Page 28: Allow The Analyzer To Warm Up

    — Use correct end of calibration block — Gage all connectors before first use Making Connections — Align connectors carefully Do Not — Apply bending force to connection — Make preliminary connection contact — Over tighten preliminary connection lightly Keysight N5264A Service Guide...
  • Page 29 Cleaning connectors with alcohol shall only be done with the instrument’s power cord removed, and in a well-ventilated area. Allow all residual alcohol moisture to evaporate, and the fumes to dissipate prior to energizing the instrument. Keysight N5264A Service Guide...

  • Page 30: Performance Tests

    Tests and Adjustments Performance Tests Performance Tests The only performance test applicable to your N5264A microwave PNA-X measurement receiver is: Frequency Accuracy Test — Frequency Accuracy Test Function of the Test: To verify the frequency accuracy and range of the analyzer’s source output.

  • Page 31: Adjustments

    Adjustments are firmware-driven tests that are used to fine-tune your analyzer. The 10 MHz Frequency Reference Adjustment is applicable to the standard N5264A and the Synthesizer BW Adjustment and EE Default Adjustment are applicable for the N5264A Option 108. “10 MHz Frequency Reference Adjustment” on page 3-6 —...

  • Page 32: Synthesizer Bandwidth Adjustment (Option 108)

    , then , then , then click EE Default Adjustment. 2. On the dialog box, select Initialize rather than Adjust/Verify because an adjustment is typically unnecessary. 3. Follow the instructions and prompts as they are displayed. Keysight N5264A Service Guide...

  • Page 33: Troubleshooting

    Keysight Measurement Receiver PNA-X Service Guide Troubleshooting Information in This Chapter The information in this chapter helps you: — Identify the portion of the analyzer at fault. — Locate the specific troubleshooting procedure to identify the assembly or peripheral at fault.

  • Page 34: Chapter Four At-A-Glance

    This represents a “hardkey”, a key that is physically located on the instrument. Hardkey This represents a “softkey”, a key whose label is determined by the instrument Softkey firmware. Menu Item This represents an item in a drop-down or pop-up menu. Keysight N5264A Service Guide...

  • Page 35: Operating The Analyzer With Covers Removed

    Operating the Analyzer With Covers Removed Operating the Analyzer With Covers Removed Do not operate the analyzer with the outer cover removed for more than 30 minutes, as this could cause the analyzer to overheat which could result in costly damage. Keysight N5264A Service Guide...

  • Page 36: Protect Against Electrostatic Discharge (Esd)

    To reduce the chance of electrostatic discharge, follow all of the recommendations outlined in “Electrostatic Discharge Protection” on page 1-7, for all of the procedures in this chapter. Keysight N5264A Service Guide...

  • Page 37: Assembly Replacement Sequence

    Step 2. Replace the faulty assembly and determine what adjustments are necessary. Refer to Chapter 7, “Repair and Replacement Procedures.” Step 3. Perform the necessary adjustments. Refer to Chapter 3, “Tests and Adjustments.” Step 4. Perform the necessary performance tests. Refer to Chapter 3, “Tests and Adjustments.” Keysight N5264A Service Guide...

  • Page 38: Getting Started With Troubleshooting

    Check the Basics A problem can often be solved by repeating the procedure you were following when the problem occurred. Before calling Keysight Technologies or returning the instrument for service, please perform the following checks: 1. Is there power at the mains receptacle? If not, correct this situation and proceed.
  • Page 39 Troubleshooting Getting Started with Troubleshooting Figure 4-1 Troubleshooting Organization Flowchart Go to “Power Up Troubleshooting” Go to “Front Panel Troubleshooting” “Rear Panel Go to Troubleshooting” Keysight N5264A Service Guide...

  • Page 40: Power Up Troubleshooting

    — If the line switch glows green and the fans are operating (audible), but the “Troubleshooting LCD Display Problems” on display remains dark, go to page 4-14. — If the instrument appears to abort the network analyzer measurement “Contacting Keysight” on interface process, contact Keysight. Refer to page 2-8. Keysight N5264A Service Guide...

  • Page 41: Power Supply Check

    ACOM as ground reference for analog supplies and the point marked DCOM as ground reference for digital supplies. Refer to Figure 4-2 for the power supply measurement points on the A15 Table 4-2 on page 4-11 midplane board. Refer to for the correct voltages. Keysight N5264A Service Guide...
  • Page 42 Failure to do so can result in personal injury or loss of life. Do not operate the analyzer with the outer cover removed for more than 30 minutes, as this could cause the analyzer to overheat which could result in costly damage. 4-10 Keysight N5264A Service Guide...
  • Page 43 If the missing supply voltages return to a “power on” condition after removal of an assembly, suspect that assembly as being defective. Remove the network analyzer assemblies in the order specified in the following Chapter 7 steps (refer to for removal instructions). Keysight N5264A Service Guide 4-11...
  • Page 44 You should be able to determine if the shorted condition has changed. Isolate the remaining three assemblies: 4-12 Keysight N5264A Service Guide...
  • Page 45 A14 system motherboard. THIS MUST BE DONE QUICKLY AS THE ANALYZER WILL RAPIDLY OVERHEAT WITHOUT THE COOLING EFFECT OF THE FANS. DO NOT PLUG IN THE POWER CORD UNTIL READY TO PERFORM MEASUREMENTS. Keysight N5264A Service Guide 4-13...

  • Page 46: Troubleshooting Lcd Display Problems

    There are no front panel adjustments for intensity and contrast of the LCD. 1. If the display is dim, the A3 display assembly is defective. Refer to “Removing and Replacing the A1–A3 and Other Front Panel Subassemblies” on page 7-9. 4-14 Keysight N5264A Service Guide...
  • Page 47 4. If the front panel interface ribbon cable is properly connected, suspect that one or more of the following is defective: — inverter board (mounted on the display assembly) — A1 front panel interface board — A3 display assembly Keysight N5264A Service Guide 4-15...

  • Page 48: Front Panel Troubleshooting

    Service More Front Panel Test Press UTILITY System , then , then , then A Front Panel Key Test Utility dialog box will be displayed, as shown in Figure 4-4. 4-16 Keysight N5264A Service Guide...
  • Page 49 7-9. Table 4-2 Front Panel Keyboard Key Names TRACE/CHAN RESPONSE ENTRY ENTRY Keys Keys Keys Keys (Cont’d)  Meas Trace 1 Trace 2 Format Cancel Enter Trace 3  Scale Help . (decimal point) Keysight N5264A Service Guide 4-17...
  • Page 50 3. If the movement of numbers is not smooth or no numbers appear at all, suspect a faulty A1 front panel interface board. To replace the A1 front panel interface board, refer to “Removing the A1 Front Panel Interface Board and Keypad Assembly” on page 7-9. 4-18 Keysight N5264A Service Guide...

  • Page 51: A3 Display Test

    USB port. — Wait 15 seconds for the analyzer to verify the device connection, and then check the operation of the USB device. — If the device performs correctly, the USB board is functioning properly. Keysight N5264A Service Guide 4-19...

  • Page 52: A1 Front Panel Interface Board

    Checking the Operation of the Key Pad Commands To verify the key pad functionality, refer to “Front Panel Keypad and RPG Test” on page 4-16. Checking the Display To verify the display functionality, refer to “A3 Display Test” on page 4-19. 4-20 Keysight N5264A Service Guide...

  • Page 53: Rear Panel Troubleshooting

    , then Configure , then SICL/GPIB... SICL/GPIB/SCPI dialog box is displayed. 3. In the GPIB block, click System Controller to establish the analyzer as a controller. Wait for the analyzer to configure, and then click OK. Keysight N5264A Service Guide 4-21...

  • Page 54: Lan Troubleshooting

    Problems with the Local Area Network (LAN) can be difficult to solve. Software and protocol problems can make it difficult to determine whether the analyzer's hardware is working properly, or if there is a problem with the LAN or cabling. 4-22 Keysight N5264A Service Guide...
  • Page 55 Windows Taskbar menu at the bottom of the display. b. On the Windows Taskbar menu, click Start, point to Programs, Accessories, and then click Command Prompt. c. The command prompt window is displayed. Keysight N5264A Service Guide 4-23...
  • Page 56 Other software may behave somewhat differently, but basically the same. 1. The letters x represent the IP address of the other device on the network. 2. The letters x represent the IP address of the analyzer. 4-24 Keysight N5264A Service Guide...
  • Page 57 A crossover cable can be made from a standard LAN cable by connecting pin 1 from each connector to pin 3 of the other connector, and pin 2 from each connector to pin 6 of the other connector. Keysight N5264A Service Guide 4-25...
  • Page 58 2 on the  other end of the cable. 3. Insulate all exposed wires so that they cannot short together. 4. Label this as a crossover cable so that it cannot be confused with a standard cable. 4-26 Keysight N5264A Service Guide...
  • Page 59 Troubleshooting Rear Panel Troubleshooting Figure 4-5 Construction of a Crossover Cable Keysight N5264A Service Guide 4-27...

  • Page 60: Instrument Block Diagram

    Troubleshooting Instrument Block Diagram Instrument Block Diagram N5264A PNA-X Measurement Receiver 4-28 Keysight N5264A Service Guide...
  • Page 61 REAR PANEL FRONT PANEL N5264A Overall Block Diagram INTERCONNECTS INTERCONNECTS (Includes Options 700 - Standard; 108 - LO Source Service Guide: N5264-90001 USB x 4 DISPLAY USB BD A20 IF MULTIPLEXER A12 SIGNAL PROCESSING Main IF A ADC MODULE (SPAM) 10.7 MHz...
  • Page 62 Troubleshooting Instrument Block Diagram 4-30 Keysight N5264A Service Guide...

  • Page 63: Theory Of Operation

    Theory of Operation Information in This Chapter This chapter provides a general description of the operating theory of the N5264A PNA-X measurement receiver. — Theory of operation is explained to the assembly level only. — Component-level circuit theory is not provided.

  • Page 64: Measurement Receiver System Operation

    The major functional groups are: — Synthesized LO Group (Option 108) IF Multiplexer Group — — Digital Processor and Digital Control Group Power Supply Group — Keysight N5264A Service Guide...
  • Page 65 “Digital Processing and Digital Control Group Operation” on Refer to page 5-14. Power Supply Group The power supply functional group provides power for the other assemblies in the instrument. “Power Supply Group Operation” on page 5-19. Refer to Keysight N5264A Service Guide...

  • Page 66: Synthesized Lo Group Operation (Option 108)

    50 MHz that is sent to the A11 13.5 GHz LO synthesizer board. The A11 13.5 GHz synthesizer board produces an LO signal that is sent through the A21 multiplier/amplifier 26.5 (HMA26.5) to the rear panel LO OUT connector. Keysight N5264A Service Guide...
  • Page 67 Theory of Operation Synthesized LO Group Operation (Option 108) Figure 5-2 Synthesized LO Group (Option 108) Keysight N5264A Service Guide...

  • Page 68: A10 Frequency Reference Board

    10 MHz reference signal for the A12 signal processing ADC module (SPAM) board. The VCO output is also divided by two to produce a 50 MHz reference signal for the A11 13.5 GHz LO synthesizer board. Keysight N5264A Service Guide...

  • Page 69: A11 13.5 Ghz Lo Synthesizer Board (Option 108)

    MHz to 26.508 GHz that is sent to the rear panel LO OUT connector. A19 Test Set Motherboard The A19 test set motherboard serves these functions: — to act as an interface between the A17 CPU board and the auxiliary rear panel interconnects. Keysight N5264A Service Guide...
  • Page 70 TTL in, low level (10 s min) aborts sweep Interrupt In +22 V +22 Vdc, 100 mA max. 15–16 SEL1–2 TTL out, test set select bits 1-2, tied to 0 V AD11 TTL I/O, address and latched data Keysight N5264A Service Guide...
  • Page 71 TTL out, low = input mode, high = output mode TTL out, active low data write strobe (1 s min) Output Strobe Write Strobe No connect Not used Pass Fail TTL out, latched, indicates pass fail (programmable polarity) Keysight N5264A Service Guide...
  • Page 72 Programmable ±10 V @ 100 mA out Nominally 0 ohms 2.44 mV typical resolution 1 MHz BW ACOM System ground GndSense Ground sense for Analog In and Analog Out Connected with 51.1 ohms to ACOM 5-10 Keysight N5264A Service Guide...
  • Page 73 Analog input: ±10 V @ 1.22 mV typical resolution Rin > 1 M-ohm BW 1 MHz ADC conversion time < 1 us typical Power Button Open collector input Active low replicates power button key press. Keysight N5264A Service Guide 5-11...

  • Page 74: If Multiplexer Group Operation

    These inputs provide the five IF input signals that are sent to the A12 SPAM board for digital processing. A20 IF Multiplexer Board The A20 IF multiplexer board routes the five rear panel IF input signals to the A12 SPAM board. 5-12 Keysight N5264A Service Guide...
  • Page 75 Theory of Operation IF Multiplexer Group Operation Figure 5-3 IF Multiplexer Group Keysight N5264A Service Guide 5-13...

  • Page 76: Digital Processing And Digital Control Group Operation

    — — A2 USB Board A3 Display Assembly — — Keypad Assembly — A14 system motherboard Data Acquisition and Processing Subgroup — A12 SPAM Board — — A17 CPU Board A51 Solid State Drive — 5-14 Keysight N5264A Service Guide...
  • Page 77 Theory of Operation Digital Processing and Digital Control Group Operation Figure 5-4 Digital Processing and Digital Control Group Keysight N5264A Service Guide 5-15...

  • Page 78: Front Panel Subgroup

    The video data received from the A17 CPU board includes the following: • digital TTL horizontal sync • digital TTL red video • blanking • digital TTL vertical sync • digital TTL green video • data clock • digital TTL blue video 5-16 Keysight N5264A Service Guide...

  • Page 79: Data Acquisition And Processing Subgroup

    In addition, when the analyzer is in the system controller mode, the CPU controls peripheral devices through the peripheral port interfaces. Front panel settings are stored in SRAM, with a battery providing at least five years of backup storage when external power is off. Keysight N5264A Service Guide 5-17...
  • Page 80 (IDE) data storage device which is connected directly to, and physically mounted within the enclosure of, the A17 CPU board. The full operating system and firmware for the network analyzer is stored on the A51 hard disk drive. 5-18 Keysight N5264A Service Guide...

  • Page 81: Power Supply Group Operation

    The +15 V standby supply remains on continuously whenever the power supply is plugged in. This supply is used to provide power to front panel LEDs and CPU components when the analyzer is turned off. Keysight N5264A Service Guide 5-19...

  • Page 82: Replaceable Parts

    Service Guide Replaceable Parts Information in This Chapter This chapter: — identifies the replaceable parts for the Keysight PNA-X measurement receiver. — includes several tables and illustrations to assist you in identifying the correct part for your measurement receiver. — contains ordering information for new assemblies and rebuilt-exchange assemblies.

  • Page 83: Ordering Information

    Ordering Information To order a part listed in the replaceable parts lists: — include the part number — indicate the quantity required — Contact Keysight Technologies for instructions on where to send the order. Refer to “Contacting Keysight” on page 2-8.

  • Page 84: Assembly Fault Identification And Replacement Sequence

    Adjustments.” Step 6. Perform the necessary performance tests. Refer to Chapter 3, “Tests and Adjustments.” Step 7. Keysight personnel: see Figure 1-1 on page 1-6 to review where the calibration stickers should be placed on the PNA. Keysight N5264A Service Guide...

  • Page 85: Replaceable Parts Listings

    Replaceable Parts Replaceable Parts Listings Replaceable Parts Listings This section contains the replacement part numbers and their descriptions for your Keysight microwave PNA. You can find the locations of replaceable parts in this section: Table 6-1, or — listed by reference designator in Table 6-2.
  • Page 86 Memory Modules on page 6-32 — Upgrades Orderable by Model Number on page 6-32 — USB Accessories on page 6-33 — Rack Mount Kits and Handle Kits on page 6-33 — Touch-up Paint on page 6-33 — Keysight N5264A Service Guide...

  • Page 87: Front Panel Assembly, Front Side, All Options

    Power switch overlay ➆ W1312-40017 Front (RPG) knob ⑧ N5264-80002 Nameplate Not shown 5023-1399 Front handle a. For part numbers of rack mount kits and handle kits, refer to “Rack Mount Kits and Handle Kits” on page 6-33. Keysight N5264A Service Guide...

  • Page 88: Front Panel Assembly, Back Side, All Options

    J1 ➀ N5242-40001 Keypad assembly ➁ 0515-0430 Machine screw, M3.0 x 6 pan head (9 to attach front panel interface board to front frame and 3 to attach display cable to display hold down bracket.) Keysight N5264A Service Guide...
  • Page 89 2090-1036 (LED) LCD display  2090-0883 (Tube) critical footnote Display assembly (continued from previous page) N5242-20121 Spacers (For display hold down bracket standoffs.) For use with LCD  (Tube) display 2090-0883 only. critical footnote Keysight N5264A Service Guide...
  • Page 90 In March 2013, Keysight discontinued using a display with florescent tube backlighting, and began using a display with LED backlighting. Associated parts are indicated in this table with either “Tube” or “LED.” If you replace an old part number <designated “Tube”>...
  • Page 91 Replaceable Parts Replaceable Parts Listings Figure 6-2 Front Panel Assembly, Back Side, All Options Figure 6-3 A3 Display Assembly with Old LCD Display 2090-0883 6-10 Keysight N5264A Service Guide...

  • Page 92: Top Assemblies, All Options

    Replaceable Parts Listings Figure 6-4 A3 Display Assembly with New LCD Display 2090-1036 Top Assemblies, All Options When replacing an old assembly, install an assembly with either the same part number or the new part number. Keysight N5264A Service Guide 6-11...
  • Page 93 Replaceable Parts Replaceable Parts Listings In February 2012, the N5264A analyzer underwent significant hardware changes. These changes included a redesigned Signal Processing ADC Module (SPAM) board, Frequency Reference board, left side inner bracket, and right side inner bracket. It is very important that this redesigned hardware be used only with analyzer serial numbers prefixed MY/SG/US5204 and above.
  • Page 94 Windows XP, and you do not want to upgrade to Windows 7, it is highly recommended that you upgrade your firmware to 9.90.17 or above. Please be aware that Keysight cannot guarantee 100% compatibility with Windows XP and or older versions of firmware <10.45.xx. To upgrade your firmware go to http://na.support.key-...
  • Page 95 Replaceable Parts Replaceable Parts Listings Figure 6-5 Top Assemblies, All Options 6-14 Keysight N5264A Service Guide...
  • Page 96 Replaceable Parts Replaceable Parts Listings This page is intentionally left blank. Keysight N5264A Service Guide 6-15...

  • Page 97: Top Cables, All Options

    A11 13.5 GHz (LO) synthesizer board J5 8120-5063 Rear-panel 10 MHz REF IN to A10 frequency reference board J2 A10 frequency reference board J3 to rear-panel 10 MHz REF OUT a. SR = semirigid coaxial cable; F = flexible coaxial cable 6-16 Keysight N5264A Service Guide...
  • Page 98 Replaceable Parts Replaceable Parts Listings Figure 6-6 Top Cables, All Options Keysight N5264A Service Guide 6-17...

  • Page 99: Bottom Assemblies, All Options

    Replaceable Parts Listings Bottom Assemblies, All Options Reference Part Number Description Designator N5240-60163 Test set motherboard Was N5245-60003 or N5240-60043 N5240-60062 IF multiplexer board Was N5240-60045 5087-7765  LO Multiplier/amplifier 26.5 (HMA26.5) (Option 108) Was 5087-7711 6-18 Keysight N5264A Service Guide...
  • Page 100 Replaceable Parts Replaceable Parts Listings Figure 6-7 Bottom Assemblies, All Options Keysight N5264A Service Guide 6-19...

  • Page 101: Bottom Cables, All Options

    A20 IF multiplexer board J1 ➃ 8121-0834 Rear-panel HANDLER I/O to A19 test set motherboard J400 a. SR = semirigid coaxial cable; F = flexible coaxial cable; nR = n wires in a ribbon (flat) cable 6-20 Keysight N5264A Service Guide...
  • Page 102 Replaceable Parts Replaceable Parts Listings Figure 6-8 Bottom Cables, All Options Keysight N5264A Service Guide 6-21...

  • Page 103: Top Hardware And Miscellaneous Parts, All Options

    Power supply bracket ➇ 0515-0375 Machine screw, M3.0 x 16, pan head (To attach midplane board to midplane bracket.) ➈ 0400-0353 Midplane board grommets Figure 6-9 Top Hardware and Miscellaneous Parts, Side View, All Options 6-22 Keysight N5264A Service Guide...
  • Page 104 Replaceable Parts Replaceable Parts Listings Figure 6-10 Top Hardware and Miscellaneous Parts, Top View, All Options Keysight N5264A Service Guide 6-23...

  • Page 105: Bottom Hardware And Miscellaneous Parts, All Options

    ➆ N5221-00006 Test set front sub panel N5242-00018 ➇ 0515-1227 Machine screw M3.0 x 6 flat head (to attach test set front sub panel to front of side brackets.) ➈ N5221-00005 Test set deck N5242-00002 6-24 Keysight N5264A Service Guide...
  • Page 106 Replaceable Parts Replaceable Parts Listings Figure 6-11 Bottom Hardware and Miscellaneous Parts, All Options Keysight N5264A Service Guide 6-25...

  • Page 107: Internal Hardware And Miscellaneous Parts, All Options

    ➆ All prefixes N5242-40002 PC board guides ➇ All prefixes N5242-00016 Side bracket (left) a. In this table, the two letters that indicate the PNA manufacturing location have been removed from each serial number prefix. 6-26 Keysight N5264A Service Guide...
  • Page 108 Replaceable Parts Replaceable Parts Listings Figure 6-12 Internal Hardware and Miscellaneous Parts, All Options Keysight N5264A Service Guide 6-27...

  • Page 109: External Hardware And Miscellaneous Parts, All Options

    Hole plug (When instrument is rack mounted.) ➇ 0515-0372 Machine screw, M3.0 x 8, pan head (To attach inner cover.) ➈ N5221-00001 Inner cover (retaining shield) Was N5264-00003 ➉ 0515-1227 Machine screw, M3.0 x 6, flat head (To attach inner cover.) 6-28 Keysight N5264A Service Guide...
  • Page 110 Replaceable Parts Replaceable Parts Listings Figure 6-13 External Hardware and Miscellaneous Parts, All Options Keysight N5264A Service Guide 6-29...

  • Page 111: Rear Panel Assembly, All Options

    Termination, 50 ohm load 8121-0834 HANDLER I/O cable assembly 2190-0068 Lock washer 2950-0054 Hex nut Bottom foot (Refer to “External Hardware and Miscellaneous Parts, All Options” on page 6-28.) 6960-0076 Hole plug 2190-0102 Lock washer 2950-0035 Hex nut 6-30 Keysight N5264A Service Guide...
  • Page 112 Replaceable Parts Replaceable Parts Listings Figure 6-14 Rear Panel Assembly, All Options Keysight N5264A Service Guide 6-31...

  • Page 113: Miscellaneous Part Numbers

    Installation and Quick Start Guide (for all PNA series analyzers) (Cannot be ordered. Part number E8356-90001 is for reference only. Must be printed from the Keysight Web site.) Service Guide. (Not available in printed form. Part number is for reference only. Must be printed N5264-90001 from the Keysight Web site.)
  • Page 114 N5232AU-1CP or N5239AU-1CP Option 1CP includes the following separately orderable items: Rack mount kit (rack mount flanges and hardware) 5063-9237 Rack mount rail set E3663AC 5063-9230 Front handle kit (two classic handles and hardware) Touch-up Paint Keysight N5264A Service Guide 6-33...
  • Page 115 Parchment white (for use on rack mount flanges, rack support flanges, and front 6010-1148 panels) a. For rack mount use, you must replace factory installed ruggedized handles (thick aluminum, no trim) with classic handles (thin aluminum with plastic trim), included with Option 1CP. 6-34 Keysight N5264A Service Guide...

  • Page 116: Repair And Replacement Procedures

    PNA-X Service Guide Repair and Replacement Procedures Information in This Chapter This chapter contains procedures for removing and replacing the major assemblies of your Keysight Technologies PNA-X measurement receiver. Chapter Seven at-a-Glance Section Title Summary of Content Start Page Personal Safety Warnings Warnings and cautions pertaining to personal safety.

  • Page 117: Personal Safety Warnings

    The front panel switch is only a standby switch and is not a LINE switch (disconnecting device). Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended. Discard used batteries according to manufacturer’s instructions. Keysight N5264A Service Guide...

  • Page 118: Electrostatic Discharge (Esd) Protection

    To reduce the chance of electrostatic discharge, follow all of the recommendations outlined in “Electrostatic Discharge Protection” on page 1-7, for all of the procedures in this chapter. Keysight N5264A Service Guide...

  • Page 119: Removal And Replacement Procedures

    7-20 Power supply page 7-22 CPU board page 7-24 GPIB board page 7-26 Test set motherboard page 7-28 IF multiplexer board page 7-30 Multiplier/amplifier 26.5 (HMA26.5) (Option 108) page 7-32 Solid state drive page 7-34 Keysight N5264A Service Guide...

  • Page 120: Removing The Covers

    Ribbon cables and wires must never be positioned on top of hardware. 3. Reverse the order of the removal procedures above. Keysight N5264A Service Guide...
  • Page 121 Repair and Replacement Procedures Removing the Covers Figure 7-1 Outer and Inner Cover Removal Keysight N5264A Service Guide...

  • Page 122: Removing And Replacing The Front Panel Assembly

    ) from the A1 front panel interface board. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. Keysight N5264A Service Guide...
  • Page 123 Repair and Replacement Procedures Removing and Replacing the Front Panel Assembly Figure 7-2 Front Panel Assembly Removal Keysight N5264A Service Guide...

  • Page 124: Removing And Replacing The A1-A3 And Other Front Panel Subassemblies

    ) and remove the inverter board. Removing the Touchscreen Controller Board ④ 1. Disconnect the touchscreen controller board cable (item ) from the touchscreen controller board and front panel interface board. 2. Disconnect the flat flex cable from the touchscreen. Keysight N5264A Service Guide...
  • Page 125 A3 display assembly from the front panel assembly. 3. The touch screen can now be removed from the front panel assembly. Note the orientation of the touch screen in the front panel assembly for installation of the new touch screen. 7-10 Keysight N5264A Service Guide...
  • Page 126 (item ) that attach it to ⑧ the LCD display hold down bracket (item ). Note the location of the four ⑩ spacers (item ) before separating the LCD display from the hold down bracket. Keysight N5264A Service Guide 7-11...
  • Page 127 A3 Display Assembly and Touch Screen Removal-2 Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-12 Keysight N5264A Service Guide...

  • Page 128: Removing And Replacing The A10, A11, And A12 Boards  (For Analyzers With Serial Numbers Prefixed My/Sg/Us5144 And Below.)

    Removing and Replacing the A10, A11, and A12 Boards  (For analyzers with serial numbers prefixed MY/SG/US5144 and below.) In February 2012, the N5264A analyzer underwent significant hardware changes. These changes included a redesigned Signal Processing ADC Module (SPAM) board, left side inner bracket, and right side inner bracket.
  • Page 129 Repair and Replacement Procedures Removing and Replacing the A10, A11, and A12 Boards (For analyzers with serial numbers prefixed MY/SG/US5144 and below.) Figure 7-6 A10, A11, and A12 Boards Removal 7-14 Keysight N5264A Service Guide...

  • Page 130: Removing And Replacing The A10, A11, And A12 Boards  (For Analyzers With Serial Numbers Prefixed My/Sg/Us5204 And Above.)

    Removing and Replacing the A10, A11, and A12 Boards  (For analyzers with serial numbers prefixed MY/SG/US5204 and above.) In February 2012, the N5264A analyzer underwent significant hardware changes. These changes included a redesigned Signal Processing ADC Module (SPAM) board, left side inner bracket, and right side inner bracket.
  • Page 131 MY/SG/US5204 and above.) 3. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. Figure 7-7 A10, A11, and A12 Boards Removal 7-16 Keysight N5264A Service Guide...

  • Page 132: Removing And Replacing The A14 System Motherboard

    ) that secure the A14 system motherboard to the chassis. 12.Slide the A14 system motherboard toward the rear of the measurement ⑤ receiver to release it from the 15 keyhole standoffs (item ) on the chassis. Keysight N5264A Service Guide 7-17...
  • Page 133 Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-18 Keysight N5264A Service Guide...
  • Page 134 Repair and Replacement Procedures Removing and Replacing the A14 System Motherboard Figure 7-8 A14 System Motherboard Removal Keysight N5264A Service Guide 7-19...

  • Page 135: Removing And Replacing The A15 Midplane Board

    2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-20 Keysight N5264A Service Guide...
  • Page 136 Repair and Replacement Procedures Removing and Replacing the A15 Midplane Board Figure 7-9 A15 Midplane Board Removal Keysight N5264A Service Guide 7-21...

  • Page 137: Removing And Replacing The A16 Power Supply Assembly

    5. Slide the A16 power supply assembly out the rear of the measurement receiver. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-22 Keysight N5264A Service Guide...
  • Page 138 Repair and Replacement Procedures Removing and Replacing the A16 Power Supply Assembly Figure 7-10 A16 Power Supply Assembly Removal Keysight N5264A Service Guide 7-23...

  • Page 139: Removing And Replacing The A17 Cpu Board Assembly

    (SSD)” on page 7-34. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-24 Keysight N5264A Service Guide...
  • Page 140 Repair and Replacement Procedures Removing and Replacing the A17 CPU Board Assembly Figure 7-11 A17 CPU Board Assembly Removal Keysight N5264A Service Guide 7-25...

  • Page 141: Removing And Replacing The A18 Gpib Board

    5. Slide the A18 GPIB board out the rear of the measurement receiver. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-26 Keysight N5264A Service Guide...
  • Page 142 Repair and Replacement Procedures Removing and Replacing the A18 GPIB Board Figure 7-12 A18 GPIB Board Removal Keysight N5264A Service Guide 7-27...

  • Page 143: Removing And Replacing The A19 Test Set Motherboard

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-28 Keysight N5264A Service Guide...
  • Page 144 Repair and Replacement Procedures Removing and Replacing the A19 Test Set Motherboard Figure 7-13 A19 Test Set Motherboard Removal Keysight N5264A Service Guide 7-29...

  • Page 145: Removing And Replacing The A20 If Multiplexer Board

    Torque rear panel RF connector nuts to 21 in-lbs and PULSE I/O connector screws to 6 in-lbs. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-30 Keysight N5264A Service Guide...
  • Page 146 Repair and Replacement Procedures Removing and Replacing the A20 IF Multiplexer Board Figure 7-14 A20 IF Multiplexer Board Removal Keysight N5264A Service Guide 7-31...

  • Page 147: Removing And Replacing The A21 Hma26.5

    1. Reverse the order of the removal procedure. Torque all RF cable connectors to 10 in-lbs. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-32 Keysight N5264A Service Guide...
  • Page 148 Repair and Replacement Procedures Removing and Replacing the A21 HMA26.5 Figure 7-15 A21 HMA26.5 Removal Keysight N5264A Service Guide 7-33...

  • Page 149: Removing And Replacing The A51 Solid State Drive (Ssd)

    Copy Unique Files from the Hard Disk If installing an SSD for Windows XP: if the user has loaded unique calibration kit information, navigate to C:\Program Files\Keysight\Network Analyzer and copy USER_CALKITFILE to a USB flash memory drive. Also copy any personal user files that you wish to preserve.
  • Page 150 Install Backup Files onto the New SSD The files that were previously saved onto a USB flash memory drive must now be installed onto the new SSD. The network analyzer must be powered up and operating. Keysight N5264A Service Guide 7-35...

  • Page 151: Removing And Replacing The Rear Panel

    9. Slide the rear panel over the cable connectors and off of the measurement receiver. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-36 Keysight N5264A Service Guide...
  • Page 152 Repair and Replacement Procedures Removing and Replacing the Rear Panel Figure 7-17 Rear Panel Removal Keysight N5264A Service Guide 7-37...

  • Page 153: Removing And Replacing The Fans

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-38 Keysight N5264A Service Guide...
  • Page 154 Repair and Replacement Procedures Removing and Replacing the Fans Figure 7-18 B1 Fan Removal Keysight N5264A Service Guide 7-39...

  • Page 155: Removing And Replacing The Lithium Battery

    1. Reverse the order of the removal procedure following all instructions included with the new battery. 2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal procedure. Refer to Table 7-2 on page 7-42. 7-40 Keysight N5264A Service Guide...
  • Page 156 Repair and Replacement Procedures Removing and Replacing the Lithium Battery Figure 7-19 Lithium Battery Removal Keysight N5264A Service Guide 7-41...

  • Page 157: Post-Repair Procedures

    A19 test set motherboard Reinstall the serial number. (Refer to None needed “Installing or Changing a Serial Number” Chapter Re-enable all hardware options. (Refer “Option Entitlement Certificate” Chapter A20 IF multiplexer board None needed None needed 7-42 Keysight N5264A Service Guide...
  • Page 158 A21 HMA26.5 (Option 108) EE Default Adjustment (Option None needed 108) A51 hard disk drive None needed Read and write to the drive B1 fan No adjustment needed Check for fan operation Battery No adjustment needed None Keysight N5264A Service Guide 7-43...

  • Page 159: General Purpose Maintenance Procedures

    Keysight Measurement Receiver PNA-X Service Guide General Purpose Maintenance Procedures Information in This Chapter Chapter Eight at-a-Glance Section Title Summary of Content Start Page Option Enable Utility How to use the option enable utility to: page 8-2 — enable options that have been added to your measurement receiver, —...

  • Page 160: Option Enable Utility

    Using the current Host ID will cause a license to be generated that will not work with the instrument. To determine the new Host ID, use the utility at the below listed web site with the new model number. http://na.support.keysight.com/pna/upgrades.html Keysight N5264A Service Guide...

  • Page 161: Enabling Or Removing Options

    Some applications require a license key that is provided by Keysight. If you do not have the required license key, contact Keysight for assistance. Refer to “Contacting Keysight”...
  • Page 162 , then , then System Help About NA... b. Press UTILITY System , then , then 6. If the options are still not listed correctly, contact Keysight for assistance. Refer to “Contacting Keysight” on page 2-8. Keysight N5264A Service Guide...

  • Page 163: Installing Or Changing A Serial Number

    Change. 3. If an error is made in entering the serial number, obtain a clear code from Keysight, enter the clear code in the space provided and click CLEAR. The correct serial number can then be entered. To change an incorrect serial number, a clear-code password is required.

  • Page 164: Firmware Upgrades

    If your measurement receiver is connected to the Internet, there are two methods available for checking the availability of, and downloading, new firmware: — Download directly from: http://www.keysight.com/find/pna. (Select your measurement receiver’s model number in this web site to view available upgrades.) —...

  • Page 165: Operating System Recovery

    Recovering from Hard Disk Drive Problems If you suspect that you have a hard disk drive problem, go to the “Hard Drive Recovery” link on the Keysight PNA Series: Service & Support Home Page on the Internet. The URL for the Keysight PNA Series: Service & Support Home Page is: http://na.support.keysight.com/pna/...
  • Page 166 A2 USB board illustrated , 7-14, 7-16 adjustments illustrated , 6-10, 6-11 procedure , 7-13, 7-15 EE default part number A14 system motherboard frequency removal and replacement illustrated 6-14 at 10 MHz illustrated 7-10 operation 5-16 synthesizer bandwidth Keysight N5264A Service Guide...
  • Page 167 5-16 part numbers 6-32 part number 6-28 rear panel , 5-7, 5-8, 5-18 required for servicing upgrades Display 5-18 warmup time EXT 10 MHz REF IN bottom assembly, assemblies location of part numbers bottom replacement assembly, Keysight N5264A Service Guide...
  • Page 168 See illustrated description 6-14 functional operation enabling digital control part number 6-11 options group removal entitlement certificate, digital processing replacement option group environment, operating 13, 7-14, 7-15, 7-16 IF multiplexer front frame specifications multiplexer illustrated verification Keysight N5264A Service Guide...
  • Page 169 6-11 6-14 illustrated 7-33 parts list part number 6-11 procedure 7-32 LED board removal illustrated , 6-19, replacement 6-25 part number , 6-18, 6-24 7-27 lower dress panel cables illustrated part numbers 6-32 data storage 5-18 Keysight N5264A Service Guide...
  • Page 170 , 6-10, 6-11 illustrated , 6-10, 6-11 parts list er board part number LED board CPU board 5-17 removal and replacement illustrated , 6-19, 6-25 data acquisition illustrated 7-10 part number , 6-18, 6-24 subgroup 5-17 procedure Keysight N5264A Service Guide...
  • Page 171 5-17 required for servicing solid state drive illustrated 5-18 , 6-22, 6-23 monitor, external 4-15 SPAM board miscellaneous 5-17 motherboard, system, See system motherboard 5-16 part numbers 6-32 test set motherboard required option Keysight N5264A Service Guide...
  • Page 172 ESD , 1-7, 3-2, 4-3, 4-4, screws replaceable cables, ribbon, for bottom assemblies pulse I/O adapter, N1966A See cables, illustrated 6-25 PWR I/O 6-16 ribbon part numbers 6-24 connector Keysight N5264A Service Guide...
  • Page 173 7-34 operation removal and replacement data storage 5-18 synthesizer band width illustrated , 7-11, 7-12 illustrated 6-14 adjustment procedure operation 7-10 5-18 system touch-up part number 6-11 adjustments paint removal and replacement EE default Keysight N5264A Service Guide...
  • Page 174 4-15 order numbers 6-32 port part numbers rear panel 6-32 to measurement receiver connector 5-18 accessories part numbers 6-33 board warm up front panel, analyzer warning illustrated , 6-10, Keysight N5264A Service Guide...
  • Page 175 Installation Note Xxxxx-xxxxx...
  • Page 176 This information is subject to change without notice. © Keysight Technologies 2008-2016 Edition 1, March 2016 www.keysight.com...

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