To Troubleshoot Display Failures - Agilent Technologies 89410A Service Manual

To troubleshoot display failures

Use this test to separate A100 Display assembly failures from A47
DSP/Display Controller assembly failures. If the screen is blank or the
grid is not displayed, do initial verification on
the A40 CPU assembly is faulty.
1 Check the display controller signals.
a
Set the power switch to off ( O ).
b
Remove the top cover.
c Disconnect the ribbon cable from A90 P10.
Troubleshooting the Analyzer
To troubleshoot display failures
page 1-10 to determine if
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