General Troubleshooting, 103 | Agilent Technologies 1690, 1680

Chapter 5: Troubleshooting

General Troubleshooting

General Troubleshooting

This section includes troubleshooting procedures that can be done on either the Agilent 1680A,AD- or 1690A,AD-series logic analyzers. Before any of these procedures can be done on an Agilent 1690A,AD-series logic analyzer, the logic analyzer must be connected to a host PC and both the host PC and the logic analyzer must be turned on.

To run the self-tests

The Self Test menu checks the major hardware functions of the logic analyzer to verify that it is working correctly. Self-tests can be performed all at once or one at a time. Refer to Chapter 8 for more information on the logic analyzer self-tests.

CAUTION:Because the most recently acquired data will be lost, be sure to save important data before running self tests.

1Do the following steps for an Agilent 1690A,AD-series:

a Connect the logic analyzer to a host PC and apply power.

b Apply power to the host PC and allow the PC to finish booting.

2For an Agilent 1680A,AD-series logic analyzer, apply power to the instrument and allow it to finish booting.

3Launch the Agilent Logic Analyzer application. When the application launches, observe the status field and ensure it reads “Online.”

4In the Agilent Logic Analyzer application, choose Help>Self Test... from the main menu.

CAUTION:If you have acquired data, a warning message appears, "Running self-tests will invalidate acquired data"; click OK to continue.

103

Image 103

Agilent Technologies 1690, 1680 manual General Troubleshooting, To run the self-tests, 103

Contents

Agilent Technologies 1680/90-Series Logic Analyzer Agilent 1680/90-Series Logic Analyzer-At a Glance Features Service Strategy This Book Contents To test the multiple-clock state acquisition Troubleshooting Theory of Operation General Information Accessories Supplied Agilent Part Number Accessories Channel Count SpecificationsCharacteristics Full Channel Probes Dimensions Equipment Required Recommended Test Equipment Preparing for Use To inspect the logic analyzer Power Requirements To connect the 1690A,AD-series logic analyzer to a host PC To apply power To start the user interface To clean the logic analyzerTo test the logic analyzer Testing Performance Test Interval Materials Required Description To make the test connectorsQty To make the test connectors Pulse Generator Setup Timebase Channel Trigger To set up the test equipment and the logic analyzerSet up the test equipment Equipment Required Critical Specifications Oscilloscope Setup Acquisition Display Trigger Shift ∆ Time Set up the 1680A,AD-series logic analyzerChannel Define meas To perform the logic analyzer self-tests Set up the 1690A,AD-series logic analyzer Set the reporting level Click Close to close the Analysis System Self Tests dialog To test the threshold accuracy Set up the equipment Connect and configure the logic analyzer Test the ECL Threshold Test the 0 V User Threshold Test the next pod To set up the logic analyzer for the state mode tests To set up the logic analyzer for the state mode tests Click OK to close the Value dialog To set up the logic analyzer for the state mode tests To test the single-clock, single-edge, state acquisition Channel 1 Output Combinations Channel 2 Output Combination Channel 2 Output Verify the test signal Setup/Hold Combinations Test Sample Position Times Window Check the setup/hold combination To test the single-clock, single-edge, state acquisition Following clock configurations will be used in steps 4, 5, To test the single-clock, single-edge, state acquisition Following clock configurations will be used in steps 9, 10 To test the single-clock, single-edge, state acquisition Test the next channels 1680/81A,AD and 1690/91A,AD To test the multiple-clock state acquisition 1680A, AD or 1690A, AD only 1682A, AD or 1692A, AD only Verify the test signal 2.0 ns 4.50 ns +3.0 ns To test the multiple-clock state acquisition To test the multiple-clock state acquisition Enable the pulse generator channel 1 Comp with the LED on Test the next channels 1680/81A, AD and 1690/91A, AD To test the single-clock, multiple-edge, state acquisition Modify the following pulse generator settings 1680A,AD or 1690A,AD only Pod 2, channel 1682A,AD or 1692A,AD only Pod 1, channel Verify the test signal Check the setup/hold with single clock, multiple clock edges To test the single-clock, multiple-edge, state acquisition Following clock configurations will be used in steps 3, 4, To test the single-clock, multiple-edge, state acquisition Test the next channels 1680/81A,AD and 1690/91A,AD To test the time interval accuracy Function Generator Setup To test the time interval accuracy Click the Run icon to fill acquisition memory Acquire and verify the test data To test the time interval accuracy Accuracy Test Settings Results Self-TestsPerformance Test Record Threshold Edge Acquisition Performance Test Record Settings ResultsMultiple-Clock Multiple-Edge Acquisition Time Interval Performance Test Record Settings Results Single-Clock Performance Test Record Calibrating and Adjusting Logic analyzer calibration Troubleshooting To install the fan guard To use the flowcharts Start Troubleshooting the Agilent 1680A,AD-series Replace Power supply Are both instrument Yes Possible problem with LCD display, inverter, or cables Does the blue Uninstall, then reinstall Agilent Logic Analyzer application Possible problem with To test the power supply voltages To check the power-up tests Pin Voltage Power Supply Voltages To test the LCD display signals To test disk drive voltages Equipment Required Critical Specification Disk Drive Voltages Pin No Signal To verify the CD-ROM Disk Drive Voltages Pin Signals Pin No To reinstall the operating system To recover the operating system Problems with the Operating System Troubleshooting the Agilent 1690A,AD-series Yes Is the power cord Connected? Consult host PC Test pass? Task Manager To verify connectivity 100 Device Manager 101 102 To run the self-tests General Troubleshooting103 104 105 106 Acquisition board status LEDs 107 To test the logic analyzer probe cables 108 109 110 To check the BNC Trigger input/output signals 111 On the DC source, enter a voltage setting of 3.000 112 To test the auxiliary powerDigital Multimeter 005% accuracy 113 Replacing Assemblies 114 1680A,AD-series disassembly/assemblyPrepare the instrument for disassembly To remove the chassis from the sleeve 115 To remove the acquisition board 116 117 To remove the power supply 118 To remove the hard disk drive 119 To remove the CD-ROM drive assembly 120 To remove the flexible disk drive 121 122 To remove the PCI boards 123 To remove the motherboard 124 Transfer the I/O panel to the replacement board 125 126 To remove the front panel assembly 127 Reverse this procedure to install the front panel assembly 128 To disassemble the front panel assembly 129 To remove the distribution board 130 To remove the inverter board 131 To remove the fans 132 To remove the cable tray 133 1690A,AD-series disassembly/assembly 134 To remove the fascia 135 Remove the fascia away from the front panel 136 137 To remove the deck 138 139 140 To remove the line filter 141 To remove the front panel and front frame 142 143 Replaceable Parts 144 Replaceable Parts Ordering See Also Replaceable Parts List145 Exploded View 147 Agilent 1680A,AD-Series Replaceable PartsReplaceable Parts Ref. Des Exchange Assemblies 148 0515-0372 149 150 151 Front Panel Assembly 152 Exploded View 154 Agilent 1690A,AD-Series Replaceable Parts 155 156 157 Power Cables and Plug Configurations Plug Type Cable Plug Description Length Color Country In/cm 158 159 Theory of Operation Block-Level Theory Agilent 1680A,AD-Series Logic Analyzer Block Diagram 160 161 Agilent 1680A,AD-series Logic Analyzer Theory 162 Power SupplyLogic Acquisition Board Block Diagram Acquisition Board 163 164 Front Panel Board Power Distribution Board165 166 Agilent 1690A,AD-series Logic Analyzer Theory 167 Power-up Self-Tests 1680A,AD-seriesSelf-Tests Descriptions Connectivity Tests 1690A,AD-series 168 Acquisition Board Self Tests 169 Logic Analyzer Self-Tests 170 171 172 Manual Part Number Technology Licenses