Page 1 Keysight N5221A and N5222A 2-Port and 4-Port PNA Microwave Network Analyzers (10 MHz - 13.5 GHz) (10 MHz - 26.5 GHz)  Service Guide...
Page 2 Service Guide N5222-90001...
Page 3: Safety Notices
Notices © Keysight Technologies 2011 - 2014 Manual Part Number computer software” as defined in FAR 52.227-19 (June 1987) or any equivalent No part of this manual may be reproduced N5222-90001 agency regulation or contract clause. Use, in any form or by any means (including...
Page 4 Printing Copies of Documentation from the To print copies of documentation from the Web, download the PDF file from the Keysight web site: • Go to http://www.keysight.com. • Enter the product model number (Ex: N5222A) in the Search box.
Page 5: Table Of Contents
Shipping Your Analyzer to Keysight for Service or Repair ....... .
Page 6 Contents What the System Verification Verifies ............3-20 Measurement Uncertainty .
Page 7 Microwave PNA, N5221A/22A ........
Page 8 Contents 2-Port Configuration, Option 201..............6-25 2-Port Configuration, Option 210.
Page 9 Contents 8 General Purpose Maintenance Procedures Information in This Chapter ............... 8-2 Chapter Eight at-a-Glance .
Page 10 Contents Contents-6 Service Guide N5222-90001...
Page 11: Safety And Regulatory Information
Safety and Regulatory Information Service Guide N5222-90001...
Page 12: Information In This Chapter
Safety and Regulatory Information PNA Series Microwave Network Analyzers Information in This Chapter N5221A/22A 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 13: Safety Symbols
PNA Series Microwave Network Analyzers Safety and Regulatory Information N5221A/22A Safety Symbols Safety Symbols The following safety symbols are used throughout this manual. Familiarize yourself with each of the symbols and its meaning before operating this instrument. CAUTION Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, could result in damage to or destruction of the instrument.
Page 14: Servicing
Safety and Regulatory Information PNA Series Microwave Network Analyzers General Safety Considerations N5221A/22A WARNING Supply voltages which oscillate between the two normal input ranges of the autoranging line voltage input will damage the power supply. In rare cases, this damage has become a user safety concern.
Page 15 LINE switch (disconnecting device). NOTE There are no replaceable fuses in the mains input or within the power supply assembly. IMPORTANT Keysight personnel: after calibration is completed, attach four “calibration void if seal broken” stickers to the PNA as shown in Figure 1-1.
Page 16: Electrostatic Discharge Protection
Safety and Regulatory Information PNA Series Microwave Network Analyzers Electrostatic Discharge Protection N5221A/22A Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the network analyzer. Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged.
Page 17: Regulatory Information
PNA Series Microwave Network Analyzers Safety and Regulatory Information N5221A/22A Regulatory Information Regulatory Information This section contains information that is required by various government regulatory agencies. Instrument Markings Familiarize yourself with these instrument markings and their meanings before operating the instrument.
Page 18: 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 the battery to Keysight Technologies for disposal. Refer “Contacting Keysight” on page 2-8 for assistance.
Page 19: General Product Information
General Product Information Service Guide N5222-90001...
Page 20: Information In This Chapter
The Internet address (URL) for on-line assistance. Service and support options available. Keysight Support, Services, and Page 2-8 Calibration options available. Assistance Important information about shipping your analyzer to Keysight for service or repair. Service Guide N5222-90001...
Page 21: Maintenance
Analyzer Options, Accessories and Upgrades Available To see a list of the options, accessories, and upgrades 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. Pulse I/O Adapter-N1966A An adapter for connecting between the analyzer’s rear-panel PULSE I/O connector and the coaxial inputs...
Page 22 General Product Information PNA Series Microwave Network Analyzers Analyzer Options, Accessories and Upgrades Available N5221A/22A Figure 2-1. Pulse I/O Adapter Service Guide N5222-90001...
Page 23: Required Service Test Equipment
PNA Series Microwave Network Analyzers General Product Information N5221A/22A Required Service Test Equipment Required Service Test Equipment Recommended Alternate Model Critical Specifications Model or Part Equipment or Part Number Number Test Instruments and Software Compression U3070AK01 None specified None test set Dynamic accuracy...
Page 24 General Product Information PNA Series Microwave Network Analyzers Required Service Test Equipment N5221A/22A Required Service Test Equipment (Cont’d) Recommended Alternate Model Critical Specifications Model or Part Equipment or Part Number Number Calibration and Verification Kits 3.5 mm calibration kit Freq: 10 MHz to 26.5 GHz...
Page 25 PNA Series Microwave Network Analyzers General Product Information N5221A/22A Required Service Test Equipment Required Service Test Equipment (Cont’d) Recommended Alternate Model or Part Model Equipment Critical Specifications Number Number Tools T-8 TORX driver 0.6 N-m (5 in-lb) setting 0.5, 0.8, and 1.0 N-m...
Page 26: Keysight Support, Services, And Assistance
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 27: Shipping Your Analyzer To Keysight For Service Or Repair
Shipping Your Analyzer to Keysight for Service or Repair IMPORTANT Keysight Technologies reserves the right to reformat or replace the internal solid state drive in your analyzer as part of its repair. This will erase all user information stored on the solid state drive.
Page 28 General Product Information PNA Series Microwave Network Analyzers Keysight Support, Services, and Assistance N5221A/22A 2-10 Service Guide N5222-90001...
Page 29: Tests And Adjustments
Tests and Adjustments Service Guide N5222-90001...
Page 30: Information In This Chapter
Tests and Adjustments PNA Series Microwave Network Analyzers Information in This Chapter N5221A/22A 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.
Page 31 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Information in This Chapter Section Title Summary of Content Start Page Performing the operator’s check. Preliminary Checks Checking your test cables. Page 3-11 Perform these checks before performing system verification. What the system verification does.
Page 32: Before You Begin
• make sure that proper electrostatic discharge (ESD) protection is provided • make sure the analyzer has warmed up properly to achieve system stability • review the principles of connector care IMPORTANT Keysight personnel: see Figure 1-1 on page 1-5 to review where the calibration stickers should be placed on the PNA.
Page 33: Review The Principles Of Connector Care
Prior to making connections to your analyzer, carefully review the information about inspecting, cleaning, and gaging connectors. Refer to the calibration kit documentation for detailed connector care information. For course numbers about additional connector care instruction, contact Keysight Technologies. Refer to “Contacting Keysight” on page 2-8.
Page 34: About System Verification And Performance Tests
Tests and Adjustments PNA Series Microwave Network Analyzers About System Verification and Performance Tests N5221A/22A About System Verification and Performance Tests The performance of the network analyzer is specified in two ways: system specifications, and instrument specifications. It is the end user’s responsibility to determine which set of specifications is applicable to their use of the PNA.
Page 35: System Verification Procedure
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A About System Verification and Performance Tests System Verification Procedure The system verification procedure tests the network analyzer measurement “system”, as defined previously, against the system specifications. If confirmation is successful, the measurement system is capable of making measurements to the accuracy specified by the graphs of measurement uncertainty.
Page 36: Certificate Of Calibration
If you have a measurement application that does not use all of the measurement capabilities of the analyzer, you may ask your local Keysight Technologies service office to verify only a subset of the specifications. However, this “limited calibration” creates the possibility of making inaccurate measurements if you then use the analyzer in an application requiring additional capabilities.
Page 37: Ansi/Ncsl Z540.3-2006 And Iso/Iec 17025 Verification
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A ANSI/NCSL Z540.3–2006 and ISO/IEC 17025 Verification ANSI/NCSL Z540.3–2006 and ISO/IEC 17025 Verification To meet the criteria for ANSI/NCSL Z540.3–2006 and ISO/IEC 17025 verification, perform the preliminary checks and all performance tests without stopping to repair or adjust .
Page 38: Non-Standards Compliant Verification
Tests and Adjustments PNA Series Microwave Network Analyzers Non-Standards Compliant Verification N5221A/22A Non-Standards Compliant Verification To meet the criteria for non-standards compliant verification, perform the preliminary checks and the performance tests while stopping to troubleshoot. Refer to Figure 3-2 for test flow. Troubleshoot and repair the first problem encountered without continuing to other tests.
Page 39: Preliminary Checks
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Preliminary Checks Preliminary Checks Preliminary checks include the following: • “The Operator’s Check” on page 3-11 The operator’s check tests the network analyzer’s basic functionality of the source, switch, and receivers.
Page 40 PNA Series Microwave Network Analyzers Preliminary Checks N5221A/22A The PNA Operator’s Check dialog box will look different for different PNA model numbers and installed options. Some of the tests are performed only if the appropriate options are installed in the PNA.
Page 41: The Test Port Cable Checks
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Preliminary Checks The Test Port Cable Checks A faulty test port cable can cause a failure in the verification test. The following checks are not required, but are recommended to verify the performance of the test port cable.
Page 42 Tests and Adjustments PNA Series Microwave Network Analyzers Preliminary Checks N5221A/22A Cable Return Loss Check 1. Press UTILITY Preset 2. Perform a one-port calibration on Port 1, 1-Port Reflection. Refer to the embedded help in the analyzer if necessary. 3. Connect the test port cable to Port 1. Connect a broadband load to the other end of the cable. Tighten to the specified torque for the connector type.
Page 43 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Preliminary Checks Cable Insertion Loss Check 1. With the test port cable still connected to Port 1, connect a short to the other end of the cable. 2. Press MARKER/ANALYSIS Search...
Page 44 Tests and Adjustments PNA Series Microwave Network Analyzers Preliminary Checks N5221A/22A Cable Magnitude and Phase Stability Check 1. With the test port cable still connected to Port 1, connect a short to the other end of the cable. 2. Press UTILITY Preset 3.
Page 45 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Preliminary Checks Figure 3-6 Typical Cable Magnitude and Phase Stability Response If the Cable Magnitude and Phase Stability Check Fails 1. Clean the cable and devices and torque to specification. Repeat the check.
Page 46 Tests and Adjustments PNA Series Microwave Network Analyzers Preliminary Checks N5221A/22A Cable Connector Repeatability Check NOTE The connector repeatability measurement should be done at the test port as well as at the end of the test port cable. 1. With the test port cable still connected to Port 1, connect a broadband load to the other end of the cable.
Page 47 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Preliminary Checks Figure 3-7 Typical Cable Connector Repeatability Response If the Cable Connector Repeatability Check Fails 1. Clean the cable and devices, and torque to specification. Repeat the check. 2. If the check still fails, the cable should be repaired or replaced.
Page 48: System Verification
Tests and Adjustments PNA Series Microwave Network Analyzers System Verification N5221A/22A System Verification System verification is used to verify system-level, error-corrected uncertainty limits for network analyzer measurements. The verification procedure is automated and is contained in the firmware of the analyzer.
Page 49: Measurement Uncertainty
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A System Verification Measurement Uncertainty Measurement uncertainty is defined as the sum of: • the residual systematic (repeatable) errors, and • the random (non-repeatable) errors in the measurement system after calibration. The systematic errors are: •...
Page 50: Measurement Traceability
This is accomplished by measuring the devices in a Keysight verification kit. The measurement of the devices in the verification kit has a traceable path because the factory system that...
Page 51: Performing System Verification
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A System Verification Performing System Verification The following verification procedure is automated by the analyzer firmware. The process for the verification • connect cables to the analyzer test ports • perform a calibration or recall a recent calibration •...
Page 52 It is highly recommended that the test port cables be regularly tested. If the system verification is performed with a non-Keysight cable, ensure that the cable meets or exceeds the specifications for the test cable specified in the previous table, “Equipment Used in the System...
Page 53 3-28. • File Tabular Data: Writes the tabular data to a text file in the Windows XP directory C:\Program Files\Keysight\Network Analyzer\Documents\ or in the Windows 7 directory C:\Users\Public\Public Documents\Network Analyzer\SysVer\. • File Graphs: Saves a screen image in PNG format in the Windows XP directory C:\Program Files\Keysight\Network Analyzer\Documents\ or in the Windows 7 directory C:\Users\Public\Public Documents\Network Analyzer\SysVer\.
Page 54 Tests and Adjustments PNA Series Microwave Network Analyzers System Verification N5221A/22A If the System Fails the Verification Test IMPORTANT Inspect all connections. Do not remove the cable from the analyzer test port. This will invalidate the calibration that you performed earlier.
Page 55 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A System Verification Interpreting the Verification Results Figure 3-11 shows an example of typical verification results with Print Tabular Data selected in the Printer Output area of the System Verification dialog box.
Page 56 Tests and Adjustments PNA Series Microwave Network Analyzers System Verification N5221A/22A Figure 3-12 shows an example of typical verification results with Print Graphs selected in the Printer Output area of the System Verification dialog box. The printed graphical results show the following: •...
Page 57: Performance Tests
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Performance Tests Performance Tests The performance tests verify the electrical performance of your PNA. These performance tests are included in the analyzer’s firmware with Option 897 and Option 898. Your analyzer is automatically configured for each individual test.
Page 58: Source Power Accuracy Test
Tests and Adjustments PNA Series Microwave Network Analyzers Performance Tests N5221A/22A Source Power Accuracy Test Function of the Test: To confirm the accuracy of the source output power of your network analyzer over its full frequency range. Specification Tested: Test Port Output–Power Level Accuracy Equipment Used: •...
Page 59: Source Maximum Power Output Test
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Performance Tests Source Maximum Power Output Test Function of the Test: To confirm the maximum source output power of your network analyzer over its full frequency range. Specification Tested: Test Port Output–Maximum Leveled Power Equipment Used: •...
Page 60: Source Power Linearity Test
Tests and Adjustments PNA Series Microwave Network Analyzers Performance Tests N5221A/22A Source Power Linearity Test Function of the Test: To verify that the power level is linear over the analyzer’s frequency range and to check the linearity of the automatic leveling control (ALC).
Page 61: Frequency Accuracy Test
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Performance Tests Frequency Accuracy Test Function of the Test: To verify the frequency accuracy and range of the analyzer’s source output. Specification Tested: Test Port Output–CW Accuracy Equipment Used: • Frequency counter •...
Page 62: Trace Noise Test
Tests and Adjustments PNA Series Microwave Network Analyzers Performance Tests N5221A/22A Trace Noise Test Function of the Test: To measure the stability of a signal in the internal source and receiver system of your analyzer. Specification Tested: Test Port Input–Trace Noise Magnitude and Trace Noise Phase Equipment Used: A test cable.
Page 63: Receiver Compression Test
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Performance Tests Receiver Compression Test Function of the Test: To measure the compression at the analyzer’s specified maximum power level for the receivers. Specification Tested: Test Port Input–Maximum Test Port Input Level Equipment Used: •...
Page 64 Tests and Adjustments PNA Series Microwave Network Analyzers Performance Tests N5221A/22A If the Analyzer Fails this Test: • Run the Receiver Characterization adjustment, and repeat this test. • If the analyzer still fails this test, replace the A23 mixer brick for a Port 1 or Port 2 failure or the A24 mixer brick for a Port 3 or Port 4 failure, then repeat this test.
Page 65: Noise Floor Test
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Performance Tests Noise Floor Test Function of the Test: To measure the absolute power level of the noise floor for the analyzer’s receivers. Specification Tested: Test Port Input–Test Port Noise Floor Equipment Used: •...
Page 66: Calibration Coefficients Test
Tests and Adjustments PNA Series Microwave Network Analyzers Performance Tests N5221A/22A Calibration Coefficients Test Function of the Test: To verify the uncorrected calibration coefficients of your analyzer. The calibration coefficients are specified at the test port without any cables, so calibrations must be performed in both the forward and reverse directions to eliminate the effects of the test cable.
Page 67: Dynamic Accuracy Test
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Performance Tests Dynamic Accuracy Test This description applies to all N522xA, N5231A/32A/34A/35A/39A, and N5247A instruments. Function of the Test: To measure the relative power linearity of the analyzer’s receivers. Specification Tested: Test Port Input–Dynamic Accuracy Equipment Used: •...
Page 68: Adjustments
Tests and Adjustments PNA Series Microwave Network Analyzers Adjustments N5221A/22A Adjustments These adjustments are firmware-driven tests that are used to fine-tune your analyzer. If multiple adjustments are to be performed, perform them in the order listed. • “10 MHz Frequency Reference Adjustment” on page 3-41 •...
Page 69: 10 Mhz Frequency Reference Adjustment
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Adjustments 10 MHz Frequency Reference Adjustment The 10 MHz frequency adjustment is used to adjust the frequency accuracy of the network analyzer’s 10 MHz frequency reference on the A10 frequency reference board assembly.
Page 70: If Gain Adjustment
Tests and Adjustments PNA Series Microwave Network Analyzers Adjustments N5221A/22A IF Gain Adjustment The IF gain adjustment is used to adjust the IF gain of the network analyzer. Procedure Service Adjustments 1. Press UTILITY System , then , then , then click IF Gain Adjustment.
Page 71: Source Adjustment
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Adjustments Source Adjustment The source calibration is used to adjust your network analyzer for a flat source power across its full frequency range. There are differences between each test port; therefore, an adjustment is required for each port.
Page 72: Receiver Adjustment
Tests and Adjustments PNA Series Microwave Network Analyzers Adjustments N5221A/22A Receiver Adjustment The receiver calibration is used to adjust the network analyzer receivers for a flat response across its full frequency range: 1. A power meter/sensor is connected to Port 1, as shown in...
Page 73 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Adjustments Figure 3-15 Equipment Setup 1 for the Receiver Adjustment Service Adjustments 2. Press UTILITY System , then , then , then click Receiver Adjustment. 3. Ensure the GPIB settings are correct.
Page 74 Tests and Adjustments PNA Series Microwave Network Analyzers Adjustments N5221A/22A Figure 3-17 Equipment Setup 3 for the Receiver Adjustment 3-46 Service Guide N5222-90001...
Page 75: Receiver Characterization
PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Adjustments Receiver Characterization This characterizes the receivers in your analyzer. Procedure Service Adjustments 1. Press UTILITY System , then , then , then click Receiver Characterization. 2. Follow the instructions and prompts as they are displayed.
Page 76: Noise Figure Adjustment (Available Only With Option 029 Installed)
If the proper file does not already exist, click Create New to enter data for the noise source you are using. The PNA will automatically remember and use the last file selected. These files should normally reside in the C:\Program Files\Keysight\Network Analyzer\Noise directory, but can also exist elsewhere.
Page 77 PNA Series Microwave Network Analyzers Tests and Adjustments N5221A/22A Adjustments Figure 3-18 PNA Noise Adjustment Dialog Box 3. Click Begin. 4. As shown in Figure 3-19, connect an RF cable between the network analyzer test ports 1 and 2. Figure 3-19 Equipment Setup 1 for the Receiver Adjustment 5.
Page 78 Tests and Adjustments PNA Series Microwave Network Analyzers Adjustments N5221A/22A Figure 3-20 Equipment Setup 2 for the Receiver Adjustment 1. When prompted, reconnect an RF cable between the network analyzer test ports 1 and 2. 2. When prompted, disconnect the cable at port 2 and insert the ECal module between port 2 and the free end of the cable.
Page 79: Troubleshooting
Troubleshooting Service Guide N5222-90001...
Page 80: Information In This Chapter
Troubleshooting PNA Series Microwave Network Analyzers Information in This Chapter N5221A/22A 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 81: Conventions Used For Hardkeys, Softkeys, And Menu Items
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Operating the Analyzer With Covers Removed Conventions Used for Hardkeys, Softkeys, and Menu Items The following conventions are used in this document: This represents a “hardkey”, a key that is physically located on the Hardkey instrument.
Page 82: 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 83: Troubleshooting Organization
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Getting Started with Troubleshooting Troubleshooting Organization Follow the flowgraph in Figure 4-1 to help direct you to the correct section for troubleshooting the analyzer. Figure 4-1 Troubleshooting Organization Flowchart Go to “Power Up Troubleshooting”...
Page 84: Power Up Troubleshooting
• If the line switch glows green and the fans are operating (audible), but the display remains dark, go to “Troubleshooting LCD Display Problems” on page 4-12. • If the instrument appears to abort the network analyzer measurement interface process, contact Keysight. Refer to “Contacting Keysight” on page 2-8. Service Guide N5222-90001...
Page 85: Power Supply Check
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Power Up Troubleshooting Power Supply Check NOTE There are no fuses to replace within the power supply. If you determine that the power supply is the failed assembly, replace the power supply. A catastrophic failure in the power supply can be determined by observing the line switch and the power supply LED indicators: 1.
Page 86 Troubleshooting PNA Series Microwave Network Analyzers Power Up Troubleshooting N5221A/22A Figure 4-2 A15 Midplane Board Power Supply LED Indicators and Measurement Points WARNING The instrument contains potentially hazardous voltages. Refer to the safety symbols provided on the instrument and in “General Safety Considerations”...
Page 87 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Power Up Troubleshooting Table 4-1 Power Supply Measurement Points Expected Expected Test Point Supply Name Test Point Supply Name Level (Vdc) Level (Vdc) 5.2 V analog 5.2 ±0.1 TP517 Analog Ground TP516 15.0 ±0.1 7 V analog...
Page 88 Troubleshooting PNA Series Microwave Network Analyzers Power Up Troubleshooting N5221A/22A page 7-14). 7. Remove the A13 13.5 GHz synthesizer board (refer to “Removing and Replacing the A4–A13 Boards” on page 7-14). 8. Remove the A4 13.5 GHz synthesizer board, if present (refer to “Removing and Replacing the A4–A13...
Page 89 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Power Up Troubleshooting If the Fans Are Not Operating CAUTION The power supply may be in thermal shutdown if the instrument has been operating without the fans running. Allow the instrument to cool down before troubleshooting.
Page 90: Troubleshooting Lcd Display Problems
Troubleshooting PNA Series Microwave Network Analyzers Power Up Troubleshooting N5221A/22A If the correct voltage is not present, suspect a defective A14 system motherboard. Refer to “Removing and Replacing the A14 System Motherboard” on page 7-16. Troubleshooting LCD Display Problems This procedure is intended to isolate the faulty assembly when the display is dark. If the display is lit, but the color mix is faulty, refer to “A3 Display Test”...
Page 91: Front Panel Troubleshooting
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Front Panel Troubleshooting Front Panel Troubleshooting The front panel assembly consists of the A1 front panel interface board, the keypad, the A2 USB board, and the A3 display assembly. The following tests verify the operation of the front panel assembly when the analyzer is in the measurement mode.
Page 92 Troubleshooting PNA Series Microwave Network Analyzers Front Panel Troubleshooting N5221A/22A Checking the Front Panel Keys To check the front panel keys, push each key and compare the name in the Key Label box to the name physically labeled on the key cap. These names are also in Table 4-2 below.
Page 93: A3 Display Test
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Front Panel Troubleshooting Checking the RPG (Front Panel Knob) To check the RPG knob: 1. Press the UTILITY key. Preset 2. Rotate the knob and check for a fluid movement of numbers on the analyzer display.
Page 94: Checking The A2 Usb Board
Troubleshooting PNA Series Microwave Network Analyzers Front Panel Troubleshooting N5221A/22A Checking the A2 USB Board To verify proper operation of the USB board: • Connect a known good USB device, such as a USB mouse, to a front panel USB port.
Page 95: Rear Panel Troubleshooting
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Rear Panel Troubleshooting Rear Panel Troubleshooting Each rear panel connector is associated with a hardware group in the analyzer. You can use the data at these rear panel connectors to help troubleshoot these hardware groups in addition to testing the connectors.
Page 96: Lan Troubleshooting
Troubleshooting PNA Series Microwave Network Analyzers Rear Panel Troubleshooting N5221A/22A 6. On the left side of the window under folders: Measurement & Automation a. Click the plus sign to expand the folder. Measurement & Automation b. Click the plus sign to expand the folder.
Page 97 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Rear Panel Troubleshooting Ping Command The analyzer has the built-in capability of performing a “ping” operation. Ping will request the analyzer to send a few bytes of information to a specific LAN device. That device will then signal the analyzer that it has received the information.
Page 98 Troubleshooting PNA Series Microwave Network Analyzers Rear Panel Troubleshooting N5221A/22A  Pinging 141.121.69.162 with 32 bytes of data:  Reply from 141.121.69.162: bytes=32 time<10ms TTL=127 Reply from 141.121.69.162: bytes=32 time<10ms TTL=127  Reply from 141.121.69.162: bytes=32 time<10ms TTL=127 Reply from 141.121.69.162: bytes=32 time<10ms TTL=127 Ping statistics for 141.121.69.162:...
Page 99 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Rear Panel Troubleshooting If neither function properly: • One or both IP addresses could be wrong. • One or both LAN states could be set to off. • The crossover cable could be miswired.
Page 100 Troubleshooting PNA Series Microwave Network Analyzers Rear Panel Troubleshooting N5221A/22A Table 4-3 LAN Pin Definitions and Wire Color Codes Pin Number Color Pin Number Color 1 (transmit +) White/orange White/blue 2 (transmit ) 6 (receive ) Orange Green 3 (receive +)
Page 101: Measurement System Troubleshooting
, then . Verify that the Help About NA... information displayed in this screen is correct for your analyzer. If any of the information is incorrect, contact Keysight Technologies. Refer to “Contacting Keysight” on page 2-8. Service Guide N5222-90001 4-23...
Page 102 , then Service Utilities View EEPROM Headers , then , then . Refer to Figure 4-6. If the information is incorrect for any of the PC boards, contact Keysight Technologies. Refer to “Contacting Keysight” on page 2-8. 4-24 Service Guide N5222-90001...
Page 103 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting Figure 4-6 EEPROM Header Info Dialog Window Error Messages SOURCE UNLEVELED: The source ALC circuit on the A19 test set motherboard is running open-loop. Check the cable connections for the A21 HMA26.5 and the A19 test set motherboard.
Page 104: Verifying The A, B, C, D, And R Traces (Standard S-Parameter Mode)
PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A Verifying the A, B, C, D, and R Traces (Standard S-Parameter Mode) The first step is to verify that the A, B,C, D, and R traces are present and that they are approximately level: •...
Page 105 — Go to Chapter 3, “Tests and Adjustments” and perform all the tests in that section. — If a problem still exists, contact Keysight. Refer to “Contacting Keysight” on page 2-8. • If any of the traces are not present, are noisy or distorted, or are at an incorrect level, then there is a problem with the analyzer’s measurement system.
Page 106: Where To Begin Troubleshooting
Troubleshooting PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A Where to Begin Troubleshooting For the purposes of troubleshooting, the analyzer block diagram is divided into the following functional groups: • the source and LO group — A10 frequency reference —...
Page 107 Properties in the resulting pop-up menu. mouse button and then click Click the Hardware tab, click Device Manager, and then expand Keysight PNA DSP Device in the resulting list. The following entry should be listed: Keysight Technologies DSP Driver #2 and should be enabled.
Page 108: Checking The Source Group
Troubleshooting PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A Checking the Source Group Source Group Tests Before checking the source group assemblies, you must open the analyzer. CAUTION Use an antistatic work surface and wrist strap to reduce the chance of electrostatic discharge for all of the procedures in this chapter.
Page 109 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting Equipment Setup 1. Before starting these checks, zero and calibrate the power meter. (See the power meter user’s guide for instructions on setting the calibration factor.) 2. If the Receiver Display (...
Page 110 PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A 5. If the observed problem was frequency banded rather than broadband related, set the analyzer frequency to the center of the problem band. The spectrum analyzer should measure a signal above the network analyzer setting.
Page 111 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting 7. If the signal is present, reconnect cables W43 and W44, and then continue with “Checking the Receiver Group” on page 4-38. Checking the A4 and A13 Source Synthesizer Outputs 1.
Page 112: Checking The Signal Separation Group
Troubleshooting PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A Checking the Signal Separation Group Before checking the signal separation group assemblies, you must open the analyzer. CAUTION Use an antistatic work surface and wrist strap to reduce the chance of electrostatic discharge for all of the procedures in this chapter.
Page 113 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting Checking Port 1, 2, 3, or 4 Power Outputs (A, B, C, or D Signals) The object of this check is to verify the power of the output signal across the entire frequency range.
Page 114 Troubleshooting PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A signal path from the output of the source board to the output port. Set the network analyzer for an S or S measurement for Port 1, 2, 3, or 4 respectively, with a CW frequency of 800 MHz.
Page 115 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting Checking the A34, A35, A36, and A37 60-dB Source Step Attenuators 1. Locate the appropriate semirigid cable at the output of the source step attenuator to be checked: • Options 219 and 419 —...
Page 116: Checking The Receiver Group
Troubleshooting PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A Checking the Receiver Group Equipment Used for These Tests Model or  Alternate Model or Part Equipment Type Part Number Number Spectrum analyzer 8565E 856xE a. Refer to the IMPORTANT notice on page 4-23.
Page 117 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting Checking the A23 and A24 Mixer Brick Receiver Outputs Set the network analyzer for an S11 measurement with a CW frequency of 1 GHz. 1. Locate the following flexible cables at the receiver IF outputs of the mixer brick(s).
Page 118 Troubleshooting PNA Series Microwave Network Analyzers Measurement System Troubleshooting N5221A/22A 3. If the measured signal is not present replace the A33 reference mixer switch. Refer to “Removing and Replacing the A33 Reference Mixer Switch” on page 7-40. Checking the A42, A43, A44, and A45 35-dB Receiver Step Attenuators 1.
Page 119 PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Measurement System Troubleshooting 5. If the measured signal is present, replace the A12 SPAM board. Refer to “Removing and Replacing the A4–A13 Boards” on page 7-14. 6. If the measured signal is not present replace the A20 IF multiplexer board. Refer to “Removing and...
Page 120 N5221A/22A 2-Port Overall Block Diagram (Includes Options 200-Standard; 201-Configurable Test Set; 210-Metrology; 217-Attenuators; and 219-Bias Tees Service Guide: N5222-90001 DISPLAY USB BD A20 IF MULTIPLEXER A12 SIGNAL PROCESSING IF = 0.826 MHz for CW Freq < 53 MHz OPTION 200 OR 210 ADC MODULE (SPAM) IF = 7.438 MHz for CW Freq >...
Page 121: Instrument Block Diagrams Sheet 1
PNA Series Microwave Network Analyzers Troubleshooting N5221A/22A Instrument Block Diagrams Sheet 1 Service Guide N5222-90001 4-43...
Page 122 N5221A/22A 4-Port Overall Block Diagram (Includes Options 400-Standard; 401-Configurable Test Set; 410-Metrology; 4 17-Attenuators; and 419-Bias Tees Service Guide: N5222-90001 DISPLAY USB BD A20 IF MULTIPLEXER A12 SIGNAL PROCESSING IF = 0.826 MHz for CW Freq < 53 MHz OPTION 400 OR 410 ADC MODULE (SPAM) IF = 7.438 MHz for CW Freq >...
Page 123: Theory Of Operation
Theory of Operation Service Guide N5222-90001...
Page 124: Information In This Chapter
Information in This Chapter N5221A/22A Information in This Chapter This chapter provides a general description of the operating theory of the N5221A/22A 2-port and 4-port PNA microwave network analyzers. • Theory of operation is explained to the assembly level only.
Page 125: Network Analyzer System Operation
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Network Analyzer System Operation Network Analyzer System Operation The PNA network analyzer generates two (2-port models) or four (4-port models) phase-locked incident signals and an LO signal from the internal synthesized source. By means of signal separation, the incident signals are divided into reference signals and test signals.
Page 126: Functional Groups Of The Network Analyzer
Theory of Operation PNA Series Microwave Network Analyzers Network Analyzer System Operation N5221A/22A Figure 5-2 2-Port System Simplified Block Diagram Functional Groups of the Network Analyzer The operation of the network analyzer can be separated into major functional groups. Each group consists of assemblies that perform a distinct function in the instrument.
Page 127 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Network Analyzer System Operation Technical Specifications documents, available online at: http://literature.cdn.keysight.com/litweb/pdf/N5221-90002.pdf http://literature.cdn.keysight.com/litweb/pdf/N5221-90001.pdf Refer to “Synthesized Source Group Operation” on page 5-6. Signal Separation Group Each of the incident signals from the source group is separated into a reference path and a test path. The reference signal is transmitted to the receiver group.
Page 128: Synthesized Source Group Operation
Theory of Operation PNA Series Microwave Network Analyzers Synthesized Source Group Operation N5221A/22A Synthesized Source Group Operation The source group produces a stable output signal by phase locking a synthesized voltage-controlled oscillator (VCO). Refer to Table 5-1 on page 5-8 for the full frequency range of the source.
Page 129 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Synthesized Source Group Operation Figure 5-3 Source Group Service Guide N5222-90001...
Page 130 Theory of Operation PNA Series Microwave Network Analyzers Synthesized Source Group Operation N5221A/22A Table 5-1 Subsweep Frequencies ➊ ➋ ➌ ➍ Mixer Brick A4/A13 A5/A8 Band L.O. Harm. Nmbr. Synthesizer HMA26.5 Synthesizer Source Frequency (GHz) Frequency (GHz) Frequency (GHz) Frequency (GHz) 0.01083 to 0.05383...
Page 131: A4, A13, And A11 13.5 Ghz Synthesizer Boards
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Synthesized Source Group Operation A4, A13, and A11 13.5 GHz Synthesizer Boards The A13 13.5 GHz synthesizer board is included only on 4-port models. The A4, A11, and A13 13.5 GHz synthesizer boards use the 50 MHz reference signal from the A14 frequency reference board to tune a VCO circuit that sweeps from 2 GHz to 4 GHz.
Page 132: A21 Multiplier/Amplifier 26.5 Board (Hma26.5)
Theory of Operation PNA Series Microwave Network Analyzers Synthesized Source Group Operation N5221A/22A A21 Multiplier/Amplifier 26.5 Board (HMA26.5) In bands 2–15, the synthesized LO input is filtered, amplified, and passed through to the A22 splitter (4-port only). In bands 16-21, the input is amplified, doubled, and filtered, then sent to the output.
Page 133: A19 Test Set Motherboard
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Synthesized Source Group Operation 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.
Page 134 Theory of Operation PNA Series Microwave Network Analyzers Synthesized Source Group Operation N5221A/22A Table 5-2 TEST SET I/O Connector Pin Assignments DB-25 Female Connector Pin Numbers Name Function SEL0 TTL out, test set select bit 0, tied to 0 V...
Page 135 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Synthesized Source Group Operation Table 5-3 HANDLER I/O Connector Pin Assignments Rectangular 36-Pin Female Connector Pin Numbers Name Function 0 V, ground reference TTL in, negative pulse (1 s min) latches OUTPUT1-2 INPUT1 3–4...
Page 136 Theory of Operation PNA Series Microwave Network Analyzers Synthesized Source Group Operation N5221A/22A Table 5-4 PWR I/O Connector Pin Assignments DB-9 Female Connector Name Description +15V +15 V @ 400 mA -15V -15 V @ 400 mA AnalogOut1 Analog Output Voltage...
Page 137: Signal Separation Group Operation
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Signal Separation Group Operation Signal Separation Group Operation The signal separation group divides the source incident signals into a reference path and a test path. Refer Figure 5-4 on page 5-17 Figure 5-5 on page 5-18.
Page 138: A25-A28 Receiver Couplers
Theory of Operation PNA Series Microwave Network Analyzers Signal Separation Group Operation N5221A/22A Normal Measurement Configuration For those analyzers equipped with configurable test set and source attenuators, with the inclusion of an external amplifier and accessories, you can calibrate the analyzer and test devices at power levels up to +30 dBm.
Page 139 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Signal Separation Group Operation Figure 5-4 4-Port Signal Separation Group Service Guide N5222-90001 5-17...
Page 140 Theory of Operation PNA Series Microwave Network Analyzers Signal Separation Group Operation N5221A/22A Figure 5-5 2-Port Signal Separation Group 5-18 Service Guide N5222-90001...
Page 141: A34-A37 65-Db Source Step Attenuators And A38-A41 Bias Tees
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Signal Separation Group Operation A34–A37 65-dB Source Step Attenuators and A38–A41 Bias Tees On 4-port models with some options, a step attenuator and a bias tee are placed in the signal path of each test port between the A25–A28 receiver couplers and the A29–A32 test port couplers.
Page 142: Receiver Group Operation
Theory of Operation PNA Series Microwave Network Analyzers Receiver Group Operation N5221A/22A Receiver Group Operation The receiver group measures and processes the input signals into digital information for processing and eventual display. Figure 5-6 on page 5-24 Figure 5-7 on page 5-25 are simplified block diagrams of the receiver functional group for 2-port and 4-port analyzers respectively.
Page 143: A20 If Multiplexer Board
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Receiver Group Operation The A23 mixer brick sends the EXT TSET DRIVE LO OUT signal to a rear-panel connector for use with an external test set. This same output connector on the A24 mixer brick is terminated.
Page 144 Theory of Operation PNA Series Microwave Network Analyzers Receiver Group Operation N5221A/22A Table 5-5 PULSE I/O Connector Pin Assignments DB-15 Female Connector Name Description IFGateAin IF pulse gate input A (TTL) IFGateBin IF pulse gate input B (TTL) IFGateCin IF pulse gate input C (TTL)
Page 145: A12 Spam Board (Analog Description)
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Receiver Group Operation A12 SPAM Board (Analog Description) The A12 SPAM board contains digital and analog circuitry. For digital descriptions, refer to “A12 SPAM Board (Digital Description)” on page 5-29. In this assembly, the IF signals (A, B, C, D, and R for 4-port models and A, B, R1, and R2 for 2-port models) from the A20 IF multiplexer board go through a gain stage where small signals are amplified to ensure that they can be detected by the analog-to-digital converter (ADC).
Page 146 Theory of Operation PNA Series Microwave Network Analyzers Receiver Group Operation N5221A/22A Figure 5-6 4-Port Receiver Group 5-24 Service Guide N5222-90001...
Page 147 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Receiver Group Operation Figure 5-7 2-Port Receiver Group Service Guide N5222-90001 5-25...
Page 148: Digital Processing And Digital Control Group Operation
Theory of Operation PNA Series Microwave Network Analyzers Digital Processing and Digital Control Group Operation N5221A/22A Digital Processing and Digital Control Group Operation The digital processor and control group provides digital control for the entire analyzer. It provides: • front panel operation, •...
Page 149 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Digital Processing and Digital Control Group Operation Figure 5-8 Digital Processing and Digital Control Group Service Guide N5222-90001 5-27...
Page 150: Front Panel Subgroup
Theory of Operation PNA Series Microwave Network Analyzers Digital Processing and Digital Control Group Operation N5221A/22A Front Panel Subgroup The front panel subgroup contains the following assemblies: • A1 Front Panel Display Board • A2 USB Board • A3 Display Assembly •...
Page 151 PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Digital Processing and Digital Control Group Operation • A12 SPAM Board (Digital Description) • A17 CPU Board (including rear-panel interconnects) • A51 Solid State Drive A12 SPAM Board (Digital Description) The A12 SPAM board contains digital and analog circuitry. For analog descriptions, refer to “A12 SPAM...
Page 152 Theory of Operation PNA Series Microwave Network Analyzers Digital Processing and Digital Control Group Operation N5221A/22A Rear Panel Interconnects The rear panel includes the following interfaces: USB x4 Four universal serial bus (USB) jacks (industry standard 4-pin connectors). GPIB (0)...
Page 153: Power Supply Group Operation
PNA Series Microwave Network Analyzers Theory of Operation N5221A/22A Power Supply Group Operation Power Supply Group Operation The A16 power supply assembly is a switching power supply operating at 103 kHz switching frequency. The input power ranges for the power supply are 90 to 132 Vac or 195 to 250 Vac. The power supply automatically senses the input voltage and switches between these two ranges.
Page 154 Theory of Operation PNA Series Microwave Network Analyzers Power Supply Group Operation N5221A/22A 5-32 Service Guide N5222-90001...
Page 155: Replaceable Parts
Replaceable Parts Service Guide N5222-90001...
Page 156: Information In This Chapter
Information in This Chapter This chapter: • identifies the replaceable parts for the Keysight PNA series microwave network analyzer. • includes several tables and illustrations to assist you in identifying the correct part for your analyzer. • contains ordering information for new assemblies and rebuilt-exchange assemblies.
Page 157: 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. To order a part that is not listed in the replaceable parts lists: •...
Page 158: Rebuilt-Exchange Assemblies
Replaceable Parts PNA Series Microwave Network Analyzers Rebuilt-Exchange Assemblies N5221A/22A Rebuilt-Exchange Assemblies Under the rebuilt-exchange assembly program: • Certain factory-repaired and tested assemblies are available on a trade-in basis. • Exchange assemblies are offered for lower cost than a new assembly, but meet all factory specifications required of a new assembly.
Page 159: Replaceable Parts Listings
N5221A/22A 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: • listed by reference designator in Table 6-1, or •...
Page 160 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Table 6-1 Part Number Listing by Reference Designator (Continued) Reference Designator Description Location Test set motherboard IF multiplexer board LO Multiplier/amplifier 26.5 (HMA26.5) Splitter Your option set determines which Mixer brick assemblies are in your PNA.
Page 161 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Table 6-2 Part Number Listing by Type of Part Assemblies and Cables • “Front Panel Assembly, Front Side, All Options” on page 6-8 • “Front Panel Assembly, Back Side, All Options” on page 6-10 •...
Page 162: Front Panel Assembly, Front Side, All Options
N5242-80007 Power switch overlay W1312-40017 Front panel (RPG) knob N5221-80005 Nameplate, N5221A Nameplate, N5222A N5222-80001 Machine screw, M3.0 x 6, 90-deg flat head (To attach subpanel to front 0515-1946 frame.) (Only 2 used on 2-port, all 4 used on 4-port.) a.
Page 163 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-2 Front Panel Assembly, Front Side, All Options Service Guide N5222-90001...
Page 164: Front Panel Assembly, Back Side, All Options
Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Front Panel Assembly, Back Side, All Options Reference Designator Part Number Qty Description N5240-60065 Front panel interface board Was N5240-60046 N5240-60063 USB board Was N5240-60047 Ribbon cable, 60-wire, A14 system motherboard J9 to A1 front panel...
Page 165 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 166 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-4 A3 Display Assembly with Old LCD Display 2090-0883 6-12 Service Guide N5222-90001...
Page 167 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-5 A3 Display Assembly with New LCD Display 2090-1036 Service Guide N5222-90001 6-13...
Page 168 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Top Assemblies and Cables, All Options Top Assemblies, All Options IMPORTANT When replacing an old assembly, install an assembly with either the same part number or the new part number.
Page 169 About Network Analyzer. In the window displayed, find “System CPU Version.” d. For more information on the N8983A SSD, refer to the Windows 7 Operating System Upgrade Kit Installation Note, available online at http://literature.cdn.keysight.com/litweb/pdf/N8983-90001.pdf. e. The lithium battery is located inside the A17 CPU board assembly. Refer to “Removing and Replacing the...
Page 170 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-6. Top Assemblies, All Options 6-16 Service Guide N5222-90001...
Page 171 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Top Cables, All Cables—All Options Reference Designator Type Part Number Qty Description A4 13.5 GHz (source 1) synthesizer board J1207 N5222-20066 to A5 26.5 GHz source (1) board P1 A13 13.5 GHz (source 2) synthesizer board J1207...
Page 172 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-7 Top Cables, All Cables—All Options 6-18 Service Guide N5222-90001...
Page 173 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 2-Port Configuration, Option 200 Bottom Assemblies, Standard 2-Port Configuration, Option 200 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7829 ...
Page 174 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-8 Bottom Assemblies, Standard 2-Port Configuration, Option 200 6-20 Service Guide N5222-90001...
Page 175 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, Standard 2-Port Configuration, Option 200 Reference Designator Type Part Number Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 176 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-9 Bottom RF Cables, Standard 2-Port Configuration, Option 200 6-22 Service Guide N5222-90001...
Page 177 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Ribbon Cables and Wire Harnesses, Standard 2-Port Configuration, Option 200 Reference Designator Type Part Number Description N5225-60001 A19 test set motherboard J221 to port 1 LED board J1...
Page 178 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-10 Bottom Ribbon Cables and Wire Harnesses, Standard 2-Port Configuration, Option 200 6-24 Service Guide N5222-90001...
Page 179: Port Configuration, Option 201
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 2-Port Configuration, Option 201 Bottom Assemblies, 2-Port, Option 201 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7829 ...
Page 180 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-11 Bottom Assemblies, 2-Port, Option 201 6-26 Service Guide N5222-90001...
Page 181 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, 2-Port, Option 201 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 182 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-12 Bottom RF Cables, 2-Port, Option 201 6-28 Service Guide N5222-90001...
Page 183 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 201 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to port 1 LED board J1 N5242-60002 A19 test set motherboard J3 to A33 reference mixer switch...
Page 184 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-13 Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 201 6-30 Service Guide N5222-90001...
Page 185: Port Configuration, Option 210
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 2-Port Configuration, Option 210 Bottom Assemblies, 2-Port, Option 210 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7829 ...
Page 186 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-14 Bottom Assemblies, 2-Port, Option 210 6-32 Service Guide N5222-90001...
Page 187 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, 2-Port, Option 210 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 188 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-15 Bottom RF Cables, 2-Port, Option 210 6-34 Service Guide N5222-90001...
Page 189 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-16 Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 210 Reference Designator Type Part Number Description N5225-60001 A19 test set motherboard J221 to port 1 LED board J1...
Page 190 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-17 Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 210 6-36 Service Guide N5222-90001...
Page 191: Port Configuration, Option 217
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 2-Port Configuration, Option 217 Bottom Assemblies, 2-Port, Option 217 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7829 ...
Page 192 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-18 Bottom Assemblies, 2-Port, Option 217 6-38 Service Guide N5222-90001...
Page 193 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, 2-Port, Option 217 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 194 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-19 Bottom RF Cables, 2-Port, Option 217 6-40 Service Guide N5222-90001...
Page 195 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 217 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to port 1 LED board J1 N5242-60002 A19 test set motherboard J3 to A33 reference mixer switch...
Page 196 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-20 Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 217 6-42 Service Guide N5222-90001...
Page 197: Port Configuration, Option 219
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 2-Port Configuration, Option 219 Bottom Assemblies, 2-Port, Option 219 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7829 ...
Page 198 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-21 Bottom Assemblies, 2-Port, Option 219 6-44 Service Guide N5222-90001...
Page 199 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, 2-Port, Option 219 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 200 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-22 Bottom RF Cables, 2-Port, Option 219 6-46 Service Guide N5222-90001...
Page 201 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 219 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to port 1 LED board J1 N5242-60002 A19 test set motherboard J3 to A33 reference mixer switch...
Page 202 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-23 Bottom Ribbon Cables and Wire Harnesses, 2-Port, Option 219 6-48 Service Guide N5222-90001...
Page 203: Port Configuration, Option 400
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 4-Port Configuration, Option 400 Bottom Assemblies, Standard 4-Port Configuration, Option 400 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7139...
Page 204 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-24 Bottom Assemblies, Standard 4-Port Configuration, Option 400 6-50 Service Guide N5222-90001...
Page 205 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, Standard 4-Port Configuration, Option 400 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 206 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-25 Bottom RF Cables, Standard 4-Port Configuration, Option 400 6-52 Service Guide N5222-90001...
Page 207 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Ribbon Cables and Wire Harnesses, Standard 4-Port Configuration, Option 400 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to ports 1/3 LED board J1...
Page 208 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-26 Bottom Ribbon Cables and Wire Harnesses, Standard 4-Port Configuration, Option 400 6-54 Service Guide N5222-90001...
Page 209: Port Configuration, Option 401
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings 4-Port Configuration, Option 401 Bottom Assemblies, 4-Port, Option 401 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7139...
Page 210 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-27 Bottom Assemblies, 4-Port, Option 401 6-56 Service Guide N5222-90001...
Page 211 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, 4-Port, Option 401 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 212 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Reference Designator Type Part Number Qty Description N5242-60020 A24 mixer brick (R3) to A20 IF multiplexer (P413) N5242-60023 A24 mixer brick (C) to A20 IF multiplexer (P601) W59-W63 Refer to “Top Cables, All Cables—All Options”...
Page 213 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-28 Bottom RF Cables, 4-Port, Option 401 Service Guide N5222-90001 6-59...
Page 214 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 401 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to ports 1/3 LED board J1 N5242-60002 A19 test set motherboard J3 to A33 reference mixer switch...
Page 215 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-29 Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 401 Service Guide N5222-90001 6-61...
Page 216: Port Configuration, Option 410
Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A 4-Port Configuration, Option 410 Bottom Assemblies, 4-Port, Option 410 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 (HMA26.5) 5087-7139...
Page 217 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-30 Bottom Assemblies, 4-Port, Option 410 Service Guide N5222-90001 6-63...
Page 218 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom RF Cables, 4-Port, Option 410 Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 219 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-31 Bottom RF Cables, 4-Port, Option 410 Service Guide N5222-90001 6-65...
Page 220 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 410 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to ports 1/3 LED board J1 N5242-60005 Rear-panel PWR I/O to A19 test set motherboard J301...
Page 221 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-32 Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 410 Service Guide N5222-90001 6-67...
Page 222: Port Configuration, Option 417
Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A 4-Port Configuration, Option 417 Bottom Assemblies, 4-Port, Option 417 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 HMA26.5) 5087-7139...
Page 223 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-33 Bottom Assemblies, 4-Port, Option 417 Service Guide N5222-90001 6-69...
Page 224 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom RF Cables, 4-Port, Option 417 (Ports 1 and 2) Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 225 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-34 Bottom RF Cables, 4-Port, Option 417 (Ports 1 and 2) Service Guide N5222-90001 6-71...
Page 226 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom RF Cables, 4-Port, Option 417 (Ports 3 and 4) Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20041 W5 to A26 port 3 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 227 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-35 Bottom RF Cables, 4-Port, Option 417 (Ports 3 and 4) Service Guide N5222-90001 6-73...
Page 228 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 417 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to ports 1/3 LED board J1 N5242-60002 A19 test set motherboard J3 to A33 reference mixer switch...
Page 229 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-36 Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 417 Service Guide N5222-90001 6-75...
Page 230: Port Configuration, Option 419
Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A 4-Port Configuration, Option 419 Bottom Assemblies, 4-Port, Option 419 Reference Designator Part Number Description N5240-60163 Test set motherboard Was N5245-60003 N5240-60062 IF multiplexer board 5087-7765 LO Multiplier/amplifier 26.5 HMA26.5) 5087-7139...
Page 231 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Figure 6-37 Bottom Assemblies, 4-Port, Option 419 Service Guide N5222-90001 6-77...
Page 232 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Bottom RF Cables, 4-Port, Option 419 (Ports 1 and 2) Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20040 W3 to A25 port 1 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 233 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings a. SR = semirigid coaxial cable; F = flexible coaxial cable Service Guide N5222-90001 6-79...
Page 234 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-38 Bottom RF Cables, 4-Port, Option 419 (Ports 1 and 2) 6-80 Service Guide N5222-90001...
Page 235 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom RF Cables, 4-Port, Option 419 (Ports 3 and 4) Reference Designator Type Part Number Qty Description Refer to “Top Cables, All Cables—All Options” on page 6-17. N5222-20041 W5 to A26 port 3 receiver coupler Refer to “Top Cables, All Cables—All Options”...
Page 236 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-39 Bottom RF Cables, 4-Port, Option 419 (Ports 3 and 4) 6-82 Service Guide N5222-90001...
Page 237 PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 419 Reference Designator Type Part Number Description N5242-60009 A19 test set motherboard J221 to ports 1/3 LED board J1 N5242-60002 A19 test set motherboard J3 to A33 reference mixer switch...
Page 238 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-40 Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 419 6-84 Service Guide N5222-90001...
Page 239: Top Assemblies And Cables, All Options
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Rear Panel Assembly, All Options Part Item Number Number Description CPU board. Refer to “Top Assemblies and Cables, All Options” on page 6-14 for part number. Solid state drive assembly (SSDA). Refer to “Top Assemblies and Cables, All Options”...
Page 240 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-41 Rear Panel Assembly, All Options 6-86 Service Guide N5222-90001...
Page 241: Top Hardware And Miscellaneous Parts, All Options
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Top Hardware and Miscellaneous Parts, All Options Reference Designator Part Number Description 3160-4199 3160-0281  Fan guard Was 3160-4198 0361-1272 Fan rivet N5242-00015 Fan bracket Machine screw, M3.0 x 8, pan head (5 to attach fan bracket to chassis, 4 to...
Page 242 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-43 Top Hardware and Miscellaneous Parts, Top View, All Options 6-88 Service Guide N5222-90001...
Page 243: Bottom Hardware And Miscellaneous Parts
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Bottom Hardware and Miscellaneous Parts Reference Qty Description Designator Part Number Machine screw, M3.0 x 8, pan head (4 to attach A19 test set motherboard to test set deck, 6 to attach A19 test set motherboard to stabilizer bracket, 4 to attach stabilizer bracket to A20 IF mux board, 17 to attach test set deck to chassis, 4 to attach A23–A24 mixer bricks to bottom of mixer brick mounting...
Page 244 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-44. Bottom Hardware and Miscellaneous Parts, All Options 6-90 Service Guide N5222-90001...
Page 245: Internal Hardware And Miscellaneous Parts, All Options
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings Internal Hardware and Miscellaneous Parts, All Options Reference Part Number Description Designator N5221-00003 Left side inner bracket W1312-00048 Midplane bracket N5221-00002 Right side inner bracket N5242-00001 Chassis Machine screw, M3.0 x 8, pan head (4 to attach midplane bracket to left...
Page 246 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-45 Internal Hardware and Miscellaneous Parts, All Options 6-92 Service Guide N5222-90001...
Page 247: External Hardware And Miscellaneous Parts, All Options
PNA Series Microwave Network Analyzers Replaceable Parts N5221A/22A Replaceable Parts Listings External Hardware and Miscellaneous Parts, All Options Reference Designator Part Number Description N5242-00014 Outer cover 5041-9611 Rear foot 0515-1619 Machine screw M4.0 x 25, pan head (To attach rear foot.) ➄...
Page 248 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Figure 6-46 External Hardware and Miscellaneous Parts, All Options 6-94 Service Guide N5222-90001...
Page 249: Miscellaneous Part Numbers
Documentation Installation and Quick Start Guide (for all PNA series analyzers) (Cannot be ordered. Part number is for reference only. Must be printed from the Keysight Web site. Refer to “Printing E8356-90001 Copies of Documentation from the Web” on page iii.) Service Guide.
Page 250 Replaceable Parts PNA Series Microwave Network Analyzers Replaceable Parts Listings N5221A/22A Table 6-3 Part Numbers for Miscellaneous Parts and Accessories (Continued) Model or Part Description Number Connector Caps Cap, protective, 0.812-ID 1401-0214 Cap, protective, 0.625-ID 1401-0225 Cap, protective, 1/4 - 36 threads...
Page 251: Repair And Replacement Procedures
Repair and Replacement Procedures Service Guide N5222-90001...
Page 252: Information In This Chapter
PNA Series Microwave Network Analyzers Information in This Chapter N5221A/22A Information in This Chapter This chapter contains procedures for removing and replacing the major assemblies of your Keysight Technologies PNA series microwave network analyzer. Chapter Seven at-a-Glance Section Title Summary of Content...
Page 253: Personal Safety Warnings
PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Personal Safety Warnings Personal Safety Warnings WARNING These servicing instructions are for use by qualified personnel only. To avoid electrical shock, do not perform any servicing unless you are qualified to do so.
Page 254: Removal And Replacement Procedures
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removal and Replacement Procedures N5221A/22A Removal and Replacement Procedures Table 7-1 List of Procedures Reference Designator Assembly Description Location Covers, outer and inner Page 7-6 Page 7-52 Fan bracket and fans...
Page 255 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removal and Replacement Procedures Table 7-1 List of Procedures (Continued) Reference Designator Assembly Description Location Page 7-38 A29 Port 1 test port coupler A30 Port 3 test port coupler A31...
Page 256: Removing The Covers
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing the Covers N5221A/22A Removing the Covers Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m)
Page 257 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing the Covers Figure 7-1 Outer and Inner Cover Removal Service Guide N5222-90001...
Page 258: Removing And Replacing The Front Panel Assembly
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the Front Panel Assembly N5221A/22A Removing and Replacing the Front Panel Assembly Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 259 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the Front Panel Assembly Figure 7-2 Front Panel Assembly Removal Service Guide N5222-90001...
Page 260: Removing And Replacing The A1-A3 And Other Front Panel Subassemblies
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A1–A3 and Other Front Panel Subassemblies N5221A/22A Removing and Replacing the A1–A3 and Other Front Panel Subassemblies Tools Required • T-8 TORX driver (torque to 6 in-lb or 0.68 N.m) •...
Page 261 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A1–A3 and Other Front Panel Subassemblies Removing the Touchscreen Controller Board ④ 1. Disconnect the touchscreen controller board cable (item ) from the touchscreen controller board and front panel interface board.
Page 262 Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A1–A3 and Other Front Panel Subassemblies N5221A/22A Removing the A3 Display Assembly and the Touchscreen ① 1. Disconnect the following cables from the A1 front panel interface board: display cable (item ), inverter ➁...
Page 263 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A1–A3 and Other Front Panel Subassemblies ⑥ ⑦ 4. The display cable (item ) can be removed by removing the three screws (item ) that attach it to the ⑧...
Page 264: Removing And Replacing The A4-A13 Boards
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A4–A13 Boards N5221A/22A Removing and Replacing the A4–A13 Boards Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 265 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A4–A13 Boards Figure 7-6 A4, A5, A8, A10, A11, A12, and A13 Boards Removal Service Guide N5222-90001 7-15...
Page 266: Removing And Replacing The A14 System Motherboard
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A14 System Motherboard N5221A/22A Removing and Replacing the A14 System Motherboard Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38N.m) •...
Page 267 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A14 System Motherboard Figure 7-7 A14 System Motherboard Removal Service Guide N5222-90001 7-17...
Page 268: Removing And Replacing The A15 Midplane Board
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A15 Midplane Board N5221A/22A Removing and Replacing the A15 Midplane Board Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 269 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A15 Midplane Board Figure 7-8 A15 Midplane Board Removal Service Guide N5222-90001 7-19...
Page 270: Removing And Replacing The A16 Power Supply Assembly
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A16 Power Supply Assembly N5221A/22A Removing and Replacing the A16 Power Supply Assembly Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 271 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A16 Power Supply Assembly Figure 7-9 A16 Power Supply Assembly Removal Service Guide N5222-90001 7-21...
Page 272: Removing And Replacing The A17 Cpu Board Assembly
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A17 CPU Board Assembly N5221A/22A Removing and Replacing the A17 CPU Board Assembly Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 273 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A17 CPU Board Assembly Figure 7-10 A17 CPU Board Assembly Removal Service Guide N5222-90001 7-23...
Page 274: Removing And Replacing The A18 Gpib Board
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A18 GPIB Board N5221A/22A Removing and Replacing the A18 GPIB Board Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 275 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A18 GPIB Board Figure 7-11 A18 GPIB Board Removal Service Guide N5222-90001 7-25...
Page 276: Removing And Replacing The A19 Test Set Motherboard
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A19 Test Set Motherboard N5221A/22A Removing and Replacing the A19 Test Set Motherboard Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 277 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A19 Test Set Motherboard Figure 7-12 A19 Test Set Motherboard Removal Service Guide N5222-90001 7-27...
Page 278: Removing And Replacing The A20 If Multiplexer Board
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A20 IF Multiplexer Board N5221A/22A Removing and Replacing the A20 IF Multiplexer Board Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 279 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A20 IF Multiplexer Board Figure 7-13 A20 IF Multiplexer Board Removal Service Guide N5222-90001 7-29...
Page 280: Removing And Replacing The A21 Hma26.5
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A21 HMA26.5 N5221A/22A Removing and Replacing the A21 HMA26.5 Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 281 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A21 HMA26.5 Figure 7-14 A21 HMA26.5 Removal Service Guide N5222-90001 7-31...
Page 282: Removing And Replacing The A22 Splitter
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A22 Splitter N5221A/22A Removing and Replacing the A22 Splitter Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 283 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A22 Splitter Figure 7-15 A22 Splitter Removal Service Guide N5222-90001 7-33...
Page 284: Removing And Replacing The A23 And A24 Mixer Bricks
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A23 and A24 Mixer Bricks N5221A/22A Removing and Replacing the A23 and A24 Mixer Bricks Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) •...
Page 285 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A23 and A24 Mixer Bricks Replacement Procedure 1. Reverse the order of the removal procedure. ⑤ If replacing the A24 mixer brick, remember to install the short circuit termination (item ), removed from the old mixer brick, onto the new mixer brick in the same location.
Page 286: Removing And Replacing The A25-A28 Receiver Couplers And Mounting Brackets
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A25–A28 Receiver Couplers and Mounting Brackets N5221A/22A Removing and Replacing the A25–A28 Receiver Couplers and Mounting Brackets Tools Required • T-6 TORX driver (torque to 4 in-lb or 0.45 N.m) •...
Page 287 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A25–A28 Receiver Couplers and Mounting Brackets Figure 7-17 A25 through A28 Receiver Couplers Removal Service Guide N5222-90001 7-37...
Page 288: Removing And Replacing The A29-A32 Test Port Couplers
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A29–A32 Test Port Couplers N5221A/22A Removing and Replacing the A29–A32 Test Port Couplers Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 289 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A29–A32 Test Port Couplers Figure 7-18 A29 through A32 Test Port Couplers Removal Service Guide N5222-90001 7-39...
Page 290: Removing And Replacing The A33 Reference Mixer Switch
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A33 Reference Mixer Switch N5221A/22A Removing and Replacing the A33 Reference Mixer Switch Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 291 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A33 Reference Mixer Switch Figure 7-19 A33 Reference Mixer Switch Removal Service Guide N5222-90001 7-41...
Page 292: Attenuators
PNA Series Microwave Network Analyzers Removing and Replacing the A34–A37 Source Attenuators, the A38–A41 Bias Tees, and the A42–A45 Receiver Attenuators N5221A/22A Removing and Replacing the A34–A37 Source Attenuators, the A38–A41 Bias Tees, and the A42–A45 Receiver Attenuators Tools Required •...
Page 293 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A34–A37 Source Attenuators, the A38–A41 Bias Tees, and the A42–A45 Receiver Attenuators Figure 7-20 Source and Receiver Step Attenuators and Bias Tees Removal Service Guide N5222-90001...
Page 294: Removing And Replacing The A38-A41 Bias Tees
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the A38–A41 Bias Tees N5221A/22A Removing and Replacing the A38–A41 Bias Tees Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 295 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A38–A41 Bias Tees Figure 7-21 A38 through A41 Bias Tees Removal Figure 7-22 Orientation of Bias Tee Capacitors Service Guide N5222-90001 7-45...
Page 296: Removing And Replacing The A51 Solid State Drive (Ssd)
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 297 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the A51 Solid State Drive (SSD) Install Backup Files onto the New Solid State Drive The files that were previously saved onto a USB flash memory drive must now be installed onto the new SSD.
Page 298: Removing And Replacing The Rear Panel
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the Rear Panel N5221A/22A Removing and Replacing the Rear Panel Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 299 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the Rear Panel Figure 7-24 Rear Panel Removal Service Guide N5222-90001 7-49...
Page 300: Removing And Replacing The Front Panel Led Boards
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the Front Panel LED Boards N5221A/22A Removing and Replacing the Front Panel LED Boards Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 301 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the Front Panel LED Boards Figure 7-25 Front Panel LED Boards Removal Service Guide N5222-90001 7-51...
Page 302: Removing And Replacing The Fans
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the Fans N5221A/22A Removing and Replacing the Fans Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 303 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the Fans Figure 7-26 B1 Fan Removal Service Guide N5222-90001 7-53...
Page 304: Removing And Replacing The Lithium Battery
Repair and Replacement Procedures PNA Series Microwave Network Analyzers Removing and Replacing the Lithium Battery N5221A/22A Removing and Replacing the Lithium Battery Tools Required • T-10 TORX driver (torque to 9 in-lb or 1.02 N.m) • T-20 TORX driver (torque to 21 in-lb or 2.38 N.m) •...
Page 305 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Removing and Replacing the Lithium Battery Figure 7-27 Lithium Battery Removal Service Guide N5222-90001 7-55...
Page 306: Post-Repair Procedures
Procedures referenced in this table are located in Chapter 3, “Tests and Adjustments,” unless specified otherwise. Step 7. Keysight personnel: see “Location of Calibration Stickers on PNA” on page 1-5 to review where the calibration stickers should be placed on the PNA.
Page 307 PNA Series Microwave Network Analyzers Repair and Replacement Procedures N5221A/22A Post-Repair Procedures Table 7-2 Related Service Procedures (Continued)  Adjustments Verification, Performance, Replaced Assembly and Other Procedures and Other Tests and Procedures EE Default Adjustment: Synth LO only Frequency Accuracy Test...
Page 308 Repair and Replacement Procedures PNA Series Microwave Network Analyzers Post-Repair Procedures N5221A/22A Table 7-2 Related Service Procedures (Continued)  Adjustments Verification, Performance, Replaced Assembly and Other Procedures and Other Tests and Procedures IF Gain Adjustment Noise Floor Test A22 splitter Receiver Characterization...
Page 309 General Purpose Maintenance Procedures Service Guide N5222-90001...
Page 310: Information In This Chapter
General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Information in This Chapter N5221A/22A Information in This Chapter Chapter Eight at-a-Glance Section Title Summary of Content Start Page Error Terms How to use error terms as a preventive maintenance page 8-3 and troubleshooting tool.
Page 311: Error Terms
PNA Series Microwave Network Analyzers General Purpose Maintenance Procedures N5221A/22A Error Terms Error Terms Using Error Terms as a Diagnostic Tool By examining error terms, you can monitor system performance for preventive maintenance and troubleshooting purposes. The magnitude and shape of the error terms are affected by: •...
Page 312: Using Flowgraphs To Identify Error Terms
General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Error Terms N5221A/22A as a tool: CAUTION Perform the following procedure only at a static-safe workstation, and wear a grounded wrist strap. This is important. If not properly protected against, electrostatic discharge can seriously damage your analyzer, resulting in costly repair.
Page 313 PNA Series Microwave Network Analyzers General Purpose Maintenance Procedures N5221A/22A Error Terms Figure 8-2 Flowgraph of Two-Port Error Terms where: E = error term 1st Subscript: D = Directivity S = Source Match R = Reflection Tracking X = Crosstalk (Isolation)
Page 314 General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Error Terms N5221A/22A Figure 8-3 Flowgraph of Three-Port Error Terms where: E = error term DIR = Directivity MAT = Forward Source Match and Reverse Load Match TRK = Forward Reflection Tracking and Reverse Transmission Tracking...
Page 315 PNA Series Microwave Network Analyzers General Purpose Maintenance Procedures N5221A/22A Error Terms Figure 8-4 Flowgraph of Four-Port Error Terms where: E = error term DIR = Directivity MAT = Forward Source Match and Reverse Load Match TRK = Forward Reflection Tracking and Reverse Transmission Tracking...
Page 316: Accessing Error Terms
General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Error Terms N5221A/22A Accessing Error Terms Error terms can be accessed either manually or programmatically: Manually • “Front Panel Access to Error Terms” on page 8-8 Programmatically • “GPIB Access to Error Terms” on page 8-9 •...
Page 317 PNA Series Microwave Network Analyzers General Purpose Maintenance Procedures N5221A/22A Error Terms Programmatic Access to Error Terms GPIB Access to Error Terms You can access error terms by way of GPIB with Standard Commands for Programmable Instruments (SCPI). For more information on GPIB and SCPI, refer to the embedded help in the analyzer. Type in keyword “errors, systematic”...
Page 318: Error Term Data
General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Error Terms N5221A/22A Error Term Data The error term descriptions in this section include the following information: • a table of the error terms • description and significance of each error term •...
Page 319 PNA Series Microwave Network Analyzers General Purpose Maintenance Procedures N5221A/22A Error Terms Directivity (E and E and E are the uncorrected forward and reverse directivity error terms of the system. The directivity error of the test port is determined by measuring the S and S reflection of the calibration kit load.
Page 320 General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Error Terms N5221A/22A Isolation (Crosstalk) (E and E Isolation, or crosstalk, is the uncorrected forward and reverse isolation error terms that represent leakage between the test ports and the signal paths. The isolation error terms are characterized by measuring transmission (S ) with loads attached to both ports during the measurement calibration.isolation...
Page 321: Option Enable Utility
PNA Series Microwave Network Analyzers General Purpose Maintenance Procedures N5221A/22A Option Enable Utility Option Enable Utility Accessing the Option Enable Utility To start the option enable utility: Service Option Enable • Press UTILITY System then then • A dialog box similar to the one illustrated in Figure 8-6 is displayed.
Page 322: Enabling Or Removing Options
These options are enabled using the option enable utility and require a special license key. NOTE 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 323: Repairing And Recovering Option Data
System , then , then 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. Service Guide N5222-90001 8-15...
Page 324: Installing Or Changing A Serial Number
2. VERY CAREFULLY, type the new serial number into the space provided and then click 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 .
Page 325: Firmware Upgrades
If your network analyzer 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 analyzer’s model number in this web site to view available upgrades.) •...
Page 326: Operating System Recovery
Operating System Recovery Recovering from Solid State Drive (SSD) Problems If you suspect that you have a solid state drive problem, go to the “Hard Drive Recovery” link on the Keysight PNA Series: Service & Support Home Page on the Internet.
Page 327: Correction Constants
• Navigate to the EEPROM Backup Utility, located at: C:\Program Files\Keysight\Network Analyzer\Service\eebackup.exe • Run the program. • Click Backup EEPROM.
Page 328 General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers Correction Constants N5221A/22A 8-20 Service Guide N5222-90001...
Page 329 Index Numerics removal and replacement troubleshooting 4-17 illustrated 7-15 A18 GPIB board 13.5 GHz LO synthesizer board illustrated 6-16 procedure 7-14 operation part number 6-14 troubleshooting 4-31 part number 6-14 removal and replacement A11 13.5 GHz LO synthesizer board removal and replacement illustrated 6-16 illustrated...
Page 330 Index illustrated 7-35 operation 5-28 removal and replacement procedure 7-34 part number 6-10 illustrated 7-43 troubleshooting 4-39 removal and replacement procedure 7-42 A24 mixer brick illustrated 7-12 7-13 troubleshooting 4-37 illustrated 6-50 6-56 6-63 6-77 procedure 7-12 A37 test port 2 source step attenuator operation 5-20 illustrated...
Page 331 Index illustrated 7-43 frequency keypad assembly 5-28 procedure 7-42 at 10 MHz 3-41 MA 26.5 5-10 5-16 troubleshooting 4-40 IF gain 3-42 main RAM 5-29 A44 test port 4 receiver step attenuator noise figure 3-48 mixer brick 5-20 illustrated 6-76 6-77 receiver calibration 3-44...
Page 332 Index removal and replacement replaceable assemblies cables, RF in bottom assembly, Option 200 procedure 7-54 illustrated 6-50 6-56 6-63 illustrated 6-22 6-28 6-34 before applying power part numbers 6-49 6-55 6-62 bias tee part numbers 6-21 6-27 6-33 replaceable RF cables removal and replacement in bottom assembly, Option 219 illustrated...
Page 333 8-15 5-30 channel, See receiver repairing 8-15 constants characterization, receiver storage correction 8-19 adjustment 3-47 5-30 contacting Keysight checks solid state disk 5-30 controllers cable DCOM troubleshooting with 4-18 connector repeatability, failure of default, EE correction constants 8-19 3-19...
Page 334 Index documentation rear panel 5-10 procedure part numbers 6-95 external display assembly dress panel analyzer illustrated 6-11 lower front panel replaceable parts 6-93 6-94 parts list 6-10 illustrated monitor 4-12 display board part number operation 5-28 dynamic range, high front frame measurement configuration 5-16 illustrated...
Page 335 5-11 procedure 7-10 procedure 7-28 hard disk drive test 4-14 troubleshooting 4-40 copying files from 7-46 4-13 troubleshooting insertion loss 7-47 installing backup files onto Keysight check removal and replacement contacting failure of 3-15 Service Guide N5222-90001 Index-7...
Page 336 Index support by reference designator motherboard, system illustrated 6-16 kits calibration operation 5-28 rack mount part number 6-14 part numbers 6-96 removal and replacement machine screws upgrade in bottom assemblies illustrated 7-17 order numbers 6-96 illustrated 6-90 procedure 7-16 verification part numbers 6-89 motherboard, test set...
Page 337 Index mixer brick 5-20 part numbers 6-41 cables, all power supply 5-31 replaceable wire harnesses in top assembly, all options 6-17 processing subgroup 5-28 illustrated 6-42 documentation 6-95 receiver group 5-20 part numbers 6-41 hardware receiver step attenuators 5-20 Option 400, bottom assembly in bottom assembly 6-89 replaceable RF cables...
Page 338 Index in bottom assembly, Option 219 part numbers 6-85 TEST SET I/O 5-12 6-47 in top assembly, all options ping command, LAN 4-19 in bottom assembly, illustrated 6-87 6-88 from network 4-20 Option 219/H85 6-41 part numbers 6-14 6-16 6-87 to analyzer 4-19 in bottom assembly, Option 400...
Page 339 Index functional description of options 8-14 functional group parts, See specific part. R receiver group repair troubleshooting 4-26 option data 8-15 block diagram 5-24 5-25 R trace post-repair procedures 7-56 defined 4-28 troubleshooting 4-26 procedures operation 5-20 rack mount kits caution about troubleshooting 4-38...
Page 340 Index illustrated 6-86 part numbers 6-47 A22 splitter part numbers 6-85 in bottom assembly, Option 219/H85 illustrated 7-33 in top assembly, all options 6-14 6-16 illustrated 6-42 procedure 7-32 illustrated 6-87 6-88 part numbers 6-41 A23 mixer brick part numbers 6-87 in bottom assembly, Option 400 illustrated...
Page 341 Option 219 procedure 7-52 warnings illustrated 6-48 front panel assembly warranty part numbers 6-47 illustrated one-year return to Keysight in bottom assembly, Option 219/H85 procedure standard illustrated 6-42 front panel LED board shipment for service or repair part numbers 6-41 illustrated...
Page 342 3-31 memory modules troubleshooting 4-37 source power accuracy 3-30 part numbers 6-96 SPAM board test port maximum power output support illustrated 6-16 contacting Keysight 3-31 operation options test port power accuracy 3-30 analog 5-23 organization receiver compression 3-35 digital 5-29...
Page 343 Index test port output power linearity 3-32 troubleshooting 4-36 illustrated 6-76 6-77 trace noise 3-34 test port 2 receiver step attenuator part number 6-68 illustrated 6-38 6-76 6-77 test equipment removal and replacement required for service part number 6-37 6-43 6-68 illustrated 7-43...
Page 344 Index removal and replacement A4 13.5 GHz source 1 synthesizer trace R 4-26 illustrated 7-12 7-13 board 4-33 typical power output procedure 7-12 A40 test port 4 bias tee 4-37 Port 1 4-35 touch-up A41 test port 2 bias tee 4-37 Port 2 4-35...
Page 345 3-20 monitor 4-12 port rear panel connector 5-30 warm up analyzer warning for servicing warranty service one-year return to Keysight standard wire harnesses in bottom assembly, Option 200 illustrated 6-24 6-30 6-36 part numbers 6-23 6-29 6-35 in bottom assembly, Option 219...
Page 346 This information is subject to change without notice. © Keysight Technologies 2011 - 2014 December 1, 2014 *N5222-90001* N5222-90001 www.keysight.com...

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N5222a

Keysight N5221A Service Manual

Safety and Regulatory Information

8 General Purpose Maintenance Procedures

General Product Information

Tests and Adjustments

Troubleshooting

Theory of Operation

Replaceable Parts

Repair and Replacement Procedures

Quick Links

Troubleshooting

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Summary of Contents for Keysight N5221A