Keysight Technologies E5072A Troubleshooting Manual
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Keysight Technologies E5072A Troubleshooting Manual

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Keysight E5072A Network Analyzer
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Summary of Contents for Keysight Technologies E5072A

  • Page 1 Keysight E5072A Network Analyzer Troubleshooting Guide...
  • Page 2 FAR and the DFARS agreement and written consent from used or copied only in accordance and are set forth specifically in Keysight Technologies, Inc. as with the terms of such license. writing elsewhere in the EULA. governed by United States and...

  • Page 3: Safety Summary

    POLLUTION DEGREE 2 in IEC61010-1. The E5053A is an INDOOR USE product. The LEDs in the E5072A are Class 1 in accordance with IEC60825-1, CLASS 1 LED PRODUCT This equipment is MEASUREMENT CATEGORY I (CAT I). Do not use for CAT...
  • Page 4 To avoid the danger of introducing additional hazards, do not install substitute parts or perform unauthorized modifications to the instrument. Return the instrument to a Keysight Technologies Sales and Service Office for service and repair to ensure that safety features are maintained in operational condition.

  • Page 5: Safety Symbols

    Certification Keysight Technologies certifies that this product met its published specifications at the time of shipment from the factory. Keysight Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institution’s calibration facility or by the calibration facilities of other...
  • Page 6 Caution Safety Symbols For any assistance, contact your nearest Keysight Technologies Sales and Service Office. Addresses are provided at the back of this manual. Keysight E5072A Network Analyzer...

  • Page 7: Table Of Contents

    How to exit from the E5072A Measurement View ....... . .
  • Page 8 Warning Message ............44 Keysight E5072A Troubleshooting Guide...

  • Page 9: Troubleshooting

    Keysight E5072A Network Analyzer Troubleshooting Guide Troubleshooting This chapter provides the procedure to isolate a faulty assembly in the E5072A. Introduction These servicing instructions are for use by qualified personnel only. To avoid possible electrical shock, do not perform any servicing unless you are qualified to do so.

  • Page 10: How To Exit From The E5072A Measurement View

    You need to exit from the E5072A Measurement View to perform some troubleshooting. The following is the procedure to exit from the E5072A Measurement View. Step 1. Connect the mouse and external keyboard to the connectors on the E5072A rear panel. Step 2. Turn the instrument on.

  • Page 11: To Troubleshoot The Instrument

    Figure 1-12, “Measurement view,” on page Step 2. Check the display • If no display appears on the LCD after the E5072A is turned on, go to “No Display Troubleshooting” on page • If the E5072A stops in booting process despite something being displayed on the LCD, go to “Booting Process Troubleshooting”...
  • Page 12 Troubleshooting To Troubleshoot the Instrument Figure 1-2 Primary trouble isolation flowchart Keysight E5072A Network Analyzer...

  • Page 13: No Display Troubleshooting

    Troubleshooting No Display Troubleshooting No Display Troubleshooting If the E5072A displays nothing despite it is powered from proper ac power line, isolate the failure in accordance with the procedure shown in Figure 1-3. Connect the keyboard to the E5072A rear panel connector, turn the power on and start trouble isolation.
  • Page 14 No Display Troubleshooting Step 1. Check fan operation and DC monitor LED If the rear panel fan (blower) doesn't run, a failure in power supply is assumed. Remove the E5072A outer cover and check if the following LEDs light: •...
  • Page 15 Step 2. Check system fan inside. If the system fan on the chassis inside the E5072A don't run, problem seems in the A80 Analog Base board or the flat cable between the A80 Analog Base board and CPU module. In this case, remove the E5072A outer cover and make sure whether the fan run or not.
  • Page 16 Whether all the connections to the A50 CPU Module are normal or not. Check if there is any disconnection or connection working loose. Step 4. Checking with the external monitor Connect an external VGA monitor to the VIDEO output on the E5072A rear panel. •...

  • Page 17: Booting Process Troubleshooting

    Troubleshooting Booting Process Troubleshooting Booting Process Troubleshooting Figure 1-7 represents the booting process flow in the E5072A. If the E5072A stops in the booting process, troubleshoot using the following step-by-step procedure. Figure 1-7 Booting process flowchart Keysight E5072A Network Analyzer...
  • Page 18 While the Boot up screen is displayed, if you want to do system recovery, select “Keysight Recovery System” as soon as in the screen. For details of the system recovery, refer to the Installation Guide. http://www.keysight.com/find/e5072a-manual Keysight E5072A Network Analyzer...
  • Page 19 If you encounter the following problems, try to reinstall the operating system before replacing the HDD. • "xxx file is missing" is displayed on DOS screen. • The Window boot screen is not displayed after the splash screen is displayed. Keysight E5072A Network Analyzer...
  • Page 20 • Windows always boots up with Safe Mode. If the E5072A was turned off without shutdown process, Microsoft Scandisk runs while the windows boot screens are displayed. If a serious problem is found in the scandisk, execute system recovery. For details of the system recovery, refer to the Installation Guide.
  • Page 21 While the power-on self test is in progress, "Power on test" is displayed at the left in the instrument status bar. If the power-on test fails, an error message is displayed there. For more details, refer to “Troubleshooting Using Diagnostic Test” on page Keysight E5072A Network Analyzer...

  • Page 22: Troubleshooting Using Diagnostic Test

    Power On Self Test Power-on self-test always takes place once the E5072A is turned on. When a failure is detected, a message "Power on self test failed" is displayed. The content of the power-on self-test is the same as a part of the diagnostic test program and includes the DC power supply voltage, source PLL synthesizer and level controller (ALC) tests.

  • Page 23: Test Equipment Required For Diagnostic Test

    Do not operate front panel keys, keyboard and mouse during the diagnostic test. Changing the instrument settings while the diagnostic test is in progress will cause incorrect test results. Step 1. Connect a mouse and an external keyboard to the E5072A’s rear panel connector. Step 2. Press key.
  • Page 24 Step 10. Press Module1 main to open the Module1 main program file. "Diagnostic Test Program" dialog box (Main Menu) will appear as shown in Figure 1-14. Figure 1-14 Diagnostic Test dialog box Step 11. To exit the diagnostic test, click "Exit" button. Keysight E5072A Network Analyzer...

  • Page 25: Program Overall

    Troubleshooting Using Diagnostic Test Program Overall Instrument  Information The option and serial number for the E5072A, and test date can be entered automatically. Test Conditions The test conditions, “Temperature”, “Humidity” and person doing the test (“Tested by”) can be entered.

  • Page 26: Diagnostic Test Failure Troubleshooting

    Figure 1-16 Setup dialog box The test result file named “resultDT.txt” is created on the drive D (D:\Keysight\Service\Log\) of the E5072A after “Exit” button of the Main Menu is pressed. The text file can be read and edited with a PC.
  • Page 27 Table 1-4 The meaning of abbreviations Abbreviation Meaning (Description) Analog Base Module Synthesizer Module Level Vernier Module T2-SW Enhanced tsunami switch Module Step attenuator Module RF Front End Module Receiver Module Local Distributor Module Decoder driver Module Keysight E5072A Network Analyzer...

  • Page 28: Function Specific Troubleshooting

    Function Specific Troubleshooting Function Specific Troubleshooting If the E5072A exhibits a failure symptom that is related to a specific function or control such as a front panel key control, display, data storage, remote control interface, printer interface, external trigger, external keyboard or mouse, isolate the trouble using the Function Specific Troubleshooting procedures described below.

  • Page 29: To Check The Device Driver

    “To Check the LAN” on page 34 To Check the Device Driver Make sure first whether the E5072A device drivers are installed properly or not by the following procedure, if a function of specific device in the E5072A doesn't work.
  • Page 30 Figure 1-20. Figure 1-20 Opening Device Driver Property If there is a problem with the device driver, perform system recovery. For details of the system recovery, refer to the Installation Guide. http://www.keysight.com/find/e5072a-manual Keysight E5072A Network Analyzer...

  • Page 31: To Check The Front Panel

    Panel I/F board and CPU module. • If only a specific key doesn't work, check first if the key is subsided in the panel. • If the rotary knob doesn't work, check the A52 Front Panel I/F board involving the RPG. Keysight E5072A Network Analyzer...

  • Page 32: To Check The Touch Panel

    Blue, White and Black every 2 seconds and returns to the measurement view. If the color test screen doesn't appear correctly, perform Step 4 below. Step 4. Connect an external VGA monitor to the VIDEO output port on the E5072A rear panel.

  • Page 33: To Check The Mouse

    A50 CPU Module may be faulty. To Check the Mouse Procedure Step 1. Connect the mouse to the E5072A rear panel USB port. Step 2. Turn the instrument on. Step 3. Move the mouse and verify that the mouse pointer move smoothly. If it doesn’t move smoothly, check first whether a foreign substance (dust, lint,...

  • Page 34: To Check The Gpib

    Procedure Connect USB cable between controller PC and USB Interface port (USBTMC) on the rear panel of E5072A. Turn the controller PC on. If the E5072A cannot detect controller PC, the problem seems in the CPU module. Keysight I/O Library should be installed on PC.

  • Page 35: Performance Test Failure Troubleshooting

    Performance Test failure Troubleshooting This section describes the adjustment and troubleshooting procedures used when the E5072A fails the performance tests. If the performance of the instrument is critical for the test limits and seems to be adjustable, perform first the adjustment(s) related to the failed test. When the test result is far from the tolerance of the test or the performance is not adjustable, isolate the faulty assembly in accordance with the "Performance Tests failure Troubleshooting...

  • Page 36: Adjustment Test Failure

    When Crosstalk, System dynamic range or Uncorrected system performance test fails, check first whether the connections of the RF semi-rigid cables between the suspicious assembly and others are tight or loose. Also check for possible disconnection (impairment) of the cables and connectors. Keysight E5072A Network Analyzer...
  • Page 37 ###: Most suspicious assembly ##: Suspicious assembly #: Possible faulty assembly Table 1-9 The meaning of abbreviations Abbreviation Meaning (Description) Oven Board Analog Base Module Synthesizer Module Level Vernier Module T2-SW Enhanced tsunami switch Module Keysight E5072A Network Analyzer...
  • Page 38 Troubleshooting Performance Test failure Troubleshooting Table 1-9 The meaning of abbreviations Abbreviation Meaning (Description) Step attenuator Module RF Front End Module Receiver Module Local Distributor Module Decoder driver Module Keysight E5072A Network Analyzer...
  • Page 39 Keysight E5072A Network Analyzer Troubleshooting Guide Post-Repair Procedures This chapter lists the procedures required to verify the E5072A operation after an assembly is replaced with a new one. Post-Repair Procedures Table 2-1 Post Repair Procedures lists the required procedures that must be performed after the replacement of an assembly.
  • Page 40 Module” in Spot Adjustment of the Frequency Accuracy Test program. RF Output Level Accuracy and Flatness Test RF Output Level Linearity Test Trace Noise Test Crosstalk & System Dynamic Range Test Noise Floor Test Dynamic Accuracy Test Uncorrected System Performance Test Keysight E5072A Network Analyzer...
  • Page 41 A92 RF Front Perform the following required “To Execute the Diagnostic Test” on page 23 End Module adjustments using “RF Front End Perform the following performance test: Module” in Spot Adjustment of the Uncorrected System Performance Test program. Keysight E5072A Network Analyzer...
  • Page 42 Calibration of the Touch Screen Inspect the Booting Process “To Check the Touch Panel” on page 32 Inverter Board No adjustment needed Inspect the Booting Process 24 bit I/O No adjustment needed “To Execute the Diagnostic Test” on page 23 Keysight E5072A Network Analyzer...
  • Page 43 Network Analyzer Troubleshooting Guide Messages The E5072A can display error messages as well as messages that indicate the internal operating status of the equipment. This appendix explains what these messages mean. They are listed in alphabetical order. Messages showing the status of the E5072A are displayed in the lower-left area of the E5072A LCD screen.
  • Page 44 GPIB. This message is not displayed when another error (against a red background) has already been displayed in the instrument message/Warning area. The warning messages for this instrument are described in WebHelp. Please refer to Keysight website. http://ena.support.keysight.com/e5072a/manuals/webhelp/eng/index.htm# product_inform ation/error_messages/warning_message.htm Keysight E5072A Troubleshooting Guide...
  • Page 45 This information is subject to change without notice. © Keysight Technologies 2011-2019 Edition 3, May 2019 E5072-90100 E5072-90100 www.keysight.com...

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