Troubleshooting Using Diagnostic Test; Internal Diagnostic Test - Keysight E4982A Troubleshooting Manual

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Troubleshooting

Troubleshooting Using Diagnostic Test

Internal Diagnostic Test

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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.
Contents of the internal diagnostic test
The internal diagnostic test contains 3 test items shown in
Table 1. Each test item can be performed independently and
verifies one of various operating characteristics of the board
assembly modules.
Table 1 Internal diagnostic test item menu
1
2
3
Test equipment required for internal diagnostic test
None.
To execute the internal diagnostic test
To isolate faulty board assembly modules, execute the
diagnostic test in accordance with the following procedure.
To perform the diagnostic test properly, the following conditions must be
met:
Environmental temperature:
Warm up time: > 30 minutes
Do not operate front panel keys, keyboard and mouse during the
diagnostic test. Changing the instrument setting while the diagnostic test
is in progress will cause incorrect test results.
DC Bus Test
Rdc Test without User Calibration
Over Current Detect Test
23°C ±5°C
LCR Meter