Troubleshooting the Analyzer

Agilent 35670A

To troubleshoot display failures

 

 

 

 

To troubleshoot display failures

 

 

 

Use this test to isolate display failures to the A101 Display assembly, A102 DC-DC

 

 

 

Converter assembly, or A7 CPU assembly.

 

 

 

Step 1. Check the DC-DC Converter assembly.

 

 

 

Set the power switch to off ( O ).

 

 

 

Connect the voltmeter to A102 TP1.

 

 

 

Set the power switch to on ( l ).

 

 

 

Check that the voltage reads is 210 10 Vdc.

 

 

 

 

 

 

 

 

 

 

Caution

 

 

The Display assembly will be damaged if the voltage is at or above 235 Vdc.

 

 

 

 

 

 

 

 

 

 

 

G

 

If the voltage is incorrect, the A102 DC-DC Converter assembly is probably

 

 

faulty.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Agilent Technologies 35670-90066 manual To troubleshoot display failures, Connect the voltmeter to A102 TP1, Faulty