To Troubleshoot Din Connector Failures - Agilent Technologies 89410A Service Manual

Troubleshooting the Analyzer

To troubleshoot DIN connector failures

To troubleshoot DIN connector failures
Use this test to determine if the fuse for the DIN connector is failing
before replacing the A80 Keyboard assembly.
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Set the power switch to on ( l ).
Check the voltage on pin 4 of the KEYBOARD connector for +5V.
If the voltage is correct, the Keyboard assembly is probably faulty.
If the voltage is not correct, replace the A80 F1 fuse.