Keysight E4982A Troubleshooting Manual
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Keysight E4982A Troubleshooting Manual

Keysight E4982A Troubleshooting Manual

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Keysight E4982A
LCR Meter
Troubleshooting
Guide

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Summary of Contents for Keysight E4982A

  • Page 1 Keysight E4982A LCR Meter Troubleshooting Guide...
  • Page 4 June 2012 Edition 1 data. Do not proceed beyond a Should Keysight and the user have a February 2015 Edition 2 CAUTION notice until the indicated separate written agreement with...
  • Page 5 Caution Do not exceed the operating input power, voltage, and current level and signal type appropriate for the instrument being used, refer to your instrument's Function Reference. Electrostatic discharge (ESD) can damage the highly sensitive microcircuits in your instrument. ESD damage is most likely to occur as the test fixtures are being connected or disconnected.
  • Page 6 When you notice any of the unusual conditions listed below, immediately terminate operation and disconnect the power cable. Contact your local Keysight Technologies sales representative or authorized service company for repair of the instrument. If you continue to operate without repairing the instrument, there is a potential fire or shock hazard to the operator.
  • Page 7 Manufacturer’s Declaration Herstellerbescheinigung GERA- USCHEMISSION LpA < 70 dB am Arbeitsplatz normaler Betrieb nach DIN 45635 T. 19 Manufacturer's Declaration ACOUSTIC NOISE EMISSION LpA < 70 dB operator position normal operation per ISO 7779 LCR Meter...

  • Page 8: Regulatory Compliance Information

    This product complies with the essential requirements of the following applicable European Directives, and carries the CE marking accordingly: • The Low Voltage Directive 2006/95/EC • The EMC Directive 2004/108/EEC To obtain Declaration of Conformity, please contact your local Keysight Technologies sales office, agent or distributor. LCR Meter...

  • Page 9: Safety Notice Supplement

    • This equipment is a POLLUTION DEGREE 2, INDOOR USE product. • This equipment is tested in stand- alone condition and in combination with the accessories supplied by Keysight Technologies against the requirement of the standards described in the Declaration of Conformity. If it is used...
  • Page 10 N O T E POLLUTION DEGREE 2 in IEC61010-1. The E4982A is an INDOOR USE product. The LEDs in the E4982A are Class 1 in accordance with IEC60825-1, N O T E CLASS 1 LED PRODUCT. • Ground the Instrument To avoid electric shock, the instrument chassis and cabinet must be grounded with the supplied power cable’s...
  • Page 11 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 12 Safety Symbols General definitions of safety symbols used on the instrument or in manuals are listed below. Instruction Manual symbol: the product is marked with this symbol when it is necessary for the user to refer to the instrument manual. Alternating current.
  • Page 13 Keysight shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or any information contained herein.
  • Page 14 Installation Guide The installation guide provides start up setup information when you use the E4982A for the first time, system recovery procedures and troubleshooting information when Windows cannot boot up. See this manual first when you use the E4982A for the first time.
  • Page 15 Help key in the E4982A or by pressing F1 in a keyboard attached to the E4982A or by clicking the help button in a dialog box. With context sensitive help, users can receive information quickly about the area the user is working in the firmware of the E4982A.
  • Page 16 This chapter provides the procedure to isolate a faulty assembly in the E4982A. Chapter 2, "Post Repair Procedure" This chapter lists the procedures required to verify the E4982A operation after an assembly is replaced with a new one. LCR Meter...

  • Page 17: Table Of Contents

    Contents Regulatory Compliance Information Safety Notice Supplement Troubleshooting Introduction How to exit from the E4982A Measurement View To Troubleshoot the Instrument Primary Trouble Isolation No Display Troubleshooting Booting Process Troubleshooting Troubleshooting Using Diagnostic Test Internal Diagnostic Test External Diagnostic Test...
  • Page 18 LCR Meter...

  • Page 19: Troubleshooting

    E4982A LCR Meter Troubleshooting Guide Troubleshooting Introduction 18 How to exit from the E4982A Measurement View 19 To Troubleshoot the Instrument 20 No Display Troubleshooting 22 Booting Process Troubleshooting 27 Troubleshooting Using Diagnostic Test 32 Function Specific Troubleshooting 40 Performance Test failure Troubleshooting 48 This chapter provides the procedure to isolate a faulty assembly in the E4982A.

  • Page 20: Introduction

    Troubleshooting Introduction These servicing instructions are for use by qualified personnel WA R N I N G only. To avoid possible electrical shock, do not perform any servicing unless you are qualified to do so. The opening of covers or removal of parts are likely to expose WA R N I N G dangerous voltages.

  • Page 21: How To Exit From The E4982A Measurement View

    If you want to return to the Measurement View, double-click the” E4982A” N O T E icon on the desktop. If you need to shut down the E4982A, press the standby switch on the N O T E front panel.

  • Page 22: To Troubleshoot The Instrument

    Figure 12, “Measurement View,” on page Step 2. Check the display. • If no display appears on the LCD after the E4982A is turned on, go to “No Display Troubleshooting" on page • If the E4982A stops during booting process despite something being displayed on the LCD, go to “Booting...
  • Page 23 Troubleshooting Figure 2 Primary trouble isolation flowchart LCR Meter...

  • Page 24: No Display Troubleshooting

    Troubleshooting No Display Troubleshooting If the E4982A displays nothing despite being powered from proper ac power line, isolate the failure in accordance with the procedure shown in Table Connect the keyboard to the E4982A rear panel connector and start trouble isolation. The methods of trouble isolation are described in the procedural step 1 to 6.
  • Page 25 Troubleshooting Figure 3 No display trouble isolation procedure LCR Meter...
  • Page 26 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 E4982A outer cover and check if the following LEDs light: • +3.3 V and +5 V DC monitor LEDs on A60 CPU module as...
  • Page 27 Check system fan inside. If the system fan, located on the left side of the chassis inside the E4982A, does not run, the problem seems to be in the A51 DSP board or the flat cable between the A51 DSP board and A60 CPU module.
  • Page 28 Step 4. Check the external monitor Connect an external VGA monitor to the External Monitor Output Port on the E4982A rear panel. • If something is displayed on the external monitor, the problem seems to be related to the LCD display. Also,...

  • Page 29: Booting Process Troubleshooting

    Troubleshooting Booting Process Troubleshooting Figure 7 represents the booting process flow in the E4982A. If the E4982A stops in the booting process, troubleshoot using the following step- by- step procedure. Figure 7 Booting process flowchart LCR Meter...
  • Page 30 While the Boot up screen is displayed, if you want to perform system N O T E recovery, select Keysight Recovery System as soon as the Windows Boot Manager screen is displayed. For details of the system recovery, refer to the Installation Guide.
  • Page 31 Troubleshooting Figure 9 Boot up Screen Step 3. Windows boot screen. The Windows boot screen is displayed. The Windows boot screen consists of two screens. Each screen is displayed in Figure 10 order as shown in . If the Windows boot screens are displayed, it is assumed that the HDD works and the Windows operating system is starting up.
  • Page 32 The operating system automatically checks the device drivers which are N O T E necessary for use in the E4982A and are installed in the system before the E4982A is shipped from Keysight factory. If the operating system does not detect them, a message box is displayed.
  • Page 33 Troubleshooting If the message “Will Shut Down in Five Seconds” is displayed and N O T E shutdown occurs, the A51 DSP board has failed to start up. The following messages may be displayed before the shutdown occurs: “Fatal Error: Failed to Initialize DSP Driver” or “Fatal Error: Failed to Initialize DSP”...

  • Page 34: Troubleshooting Using Diagnostic Test

    Troubleshooting Troubleshooting Using Diagnostic Test The E4982A has an internal and an external diagnostic test function to diagnose the analog measurement section and internal dc power supply voltages. The diagnostic tests make it possible to isolate a faulty board assembly. The following paragraphs describe the procedure to perform the diagnostic tests.
  • Page 35 Troubleshooting Step 1. Press key. Step 2. Click Service - Internal Test. The internal test warning screen as shown in Figure 13 displayed. Check the warning conditions and click Start Test. Figure 13 Internal Test 1/4 Step 3. Select Execute All or Execute Single. The internal test window is shown as in Figure Figure 14 Internal Test 2/4...
  • Page 36 Troubleshooting Execute All executes all tests in succession. Figure 15 Internal Test 3/4 Execute Single allows you to choose the test you want to execute as shown in Figure Figure 16 Internal Test 4/4 Step 4. Click Exit to exit the internal diagnostic test. LCR Meter...

  • Page 37: External Diagnostic Test

    Troubleshooting External Diagnostic Test Contents of the external diagnostic test The external diagnostic test contains 6 test items shown in Table 2. Each test item can be performed independently and verifies one of various operating characteristics of the board assembly modules. Table 2 External diagnostic test item menu IF Ranging Test...
  • Page 38 Troubleshooting To perform the diagnostic test properly, the following conditions must be N O T E met: 23°C ±5°C Environmental temperature: Warm up time: > 30 minutes Do not operate front panel keys, keyboard and mouse during the N O T E diagnostic test.
  • Page 39 Troubleshooting The external test window is shown as in Figure Figure 18 External Test 2/4 Execute All executes all tests in succesion. Execute Single allows you to choose the test you want to execute as shown in Figure Figure 19 External Test 3/4 Step 4.

  • Page 40: Diagnostic Test Failure Troubleshooting

    Troubleshooting A connection figure as shown in Figure 20 is displayed. Connect as shown and click OK. Figure 20 External Test 4/4 Step 5. In the main External Test window, click Exit to exit the external diagnostic test. Diagnostic Test Failure Troubleshooting Table 4 Table 5 represents the contents of the...
  • Page 41 Troubleshooting Table 5 External diagnostic test failure troubleshooting information Failed test Probable faulty board assembly Test Source Receiver Head Board Board IF Ranging Test Rdc Test without User Calibration Rdc Performance Test with User Calibration Rdc SNR Test with User Calibration Impedance Performance Test with User Calibration Impedance SNR Test with User Calibration...

  • Page 42: Function Specific Troubleshooting

    Troubleshooting Function Specific Troubleshooting If the E4982A exhibits a failure symptom that is related to a specific function or control such as a front panel key control, data storage, remote control interface, external trigger, external keyboard or mouse, isolate the trouble using the Function Specific Troubleshooting procedures described below.

  • Page 43: To Check The Device Driver

    35 To Check the Device Driver First, confirm that the E4982A device drivers are properly installed with the following procedure. Procedure Step 1. Exit from the E4982A measurement view in accordance with the procedure described in “How to exit...
  • Page 44 Troubleshooting Figure 22 System Properties Window (General) Step 3. Select the Hardware tab and click on the Device Manager button. The operating system detects all the necessary device drivers and displays the device names as shown in Figure Figure 23 System Properties Window (Hardware) LCR Meter...

  • Page 45: To Check The Front Panel

    Troubleshooting Step 4. Click the expand icon (+) on the left to expand the selected device category. Right click on the selected device and click Property to show the status detail as shown in Figure Figure 24 Opening Device Driver Property Step 5.
  • Page 46 Troubleshooting Step 2. Click Service - Keyboard Test. This opens the Front Panel Test window as shown in Figure Figure 25 Front Panel Test window 1/2 Step 3. Press the front panel keys. Red ticks will appear on the Front Panel Test window whenever the corresponding key on the front panel is pressed as shown in Figure Turn the rotary knob clockwise or counterclockwise.

  • Page 47: To Check The Touch Panel

    ENTRY keys on the E4982A front panel. If the color test screen does not appear, perform Step 4. Step 3. Connect an external VGA monitor to the External Monitor Output Port on the E4982A rear panel. LCR Meter...

  • Page 48: To Check The External Keyboard

    A60 CPU Module may be faulty. To Check the Mouse Procedure Step 1. Connect a mouse to the E4982A rear panel USB port. Step 2. Verify that the mouse buttons work normally. If any button does not work or the mouse pointer does not move, a failure in the mouse or the A60 CPU Module is suspected.

  • Page 49: To Check The External Trigger Input

    Connect a USB cable between controller PC and USB Interface port (USBTMC) on the rear panel of the E4982A. Turn the controller PC on. If the E4982A cannot detect the controller PC, the problems seems to be in the CPU module.

  • Page 50: Performance Test Failure Troubleshooting

    Troubleshooting Performance Test failure Troubleshooting This section describes the adjustment and troubleshooting procedures used when the E4982A fails the performance tests. If the performance of the instrument is critical for the test limits and seems adjustable, perform first the adjustment(s) related to the failed test. When the test result...

  • Page 51: Performance Test Failure Troubleshooting

    Troubleshooting Table 8 Adjustment failure Troubleshooting information Failed item Probable faulty board assembly Test Source Receiver Head Board Board Frequency Reference DC Offset Cancel DAC (Source DC Offset) Over Current Detect Pre Receiver IF Range Pre Receiver RF Range Synthesizer Gain Source Output Power Local Gain Receiver Calibration...
  • Page 52 Troubleshooting Table 9 Performance Test failure Troubleshooting information Failed test Probable faulty board assembly Test Source Receiver Head Board Board Frequency Accuracy Power Level Accuracy Impedance Measurement Accuracy LCR Meter...

  • Page 53: Post Repair Procedure

    E4982A Network Analyzer Installation Guide Post Repair Procedure Post Repair Procedures 52 This chapter lists the procedures required to verify the E4982A operation after an assembly is replaced with a new one.

  • Page 54: Post Repair Procedures

    Post Repair Procedure Post Repair Procedures Table 10 lists the required procedures that must be performed after the replacement of an assembly. These are the recommended minimum procedures to ensure that the replacement is successfully completed. Table 10 Post Repair Procedures Replaced Required Adjustment Correction Verification...

  • Page 55: Regional Sales And Support Offices

    Regional Sales and Support Offices For more information about Keysight Technologies test and measurement products, applications, services, and for the current sales office listing, visit our web site: http://www.keysight.com/find/tmdir You can also contact one of the following centers and ask for a test and measurement sales...
  • Page 56 LCR Meter...
  • Page 58 This information is subject to change without notice. © Keysight Technologies 2012, 2015 Edition 2, February 2015 *E4982-90100* E4982-90100 www.keysight.com...

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