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Troubleshooting the Analyzer
To perform self tests
5 Check the HPIB controller on the A42 Memory assembly.
a Press the following keys:
[System Utility]
[
more]
[
diagnostics]
[
functional tests]
[
I/O]
[
HPIB controller]
b If the HPIB controller test fails, the A42 Memory assembly is
probably faulty.
6 Check the oven fuse on the A95 Main Power Supply assembly.
a Set the power switch to off ( O ).
b Turn the analyzer upside down.
c Remove the bottom cover.
d Wait five minutes to allow time for the power supply capacitors to
discharge.
e Remove the black power supply shield.
f Measure the resistance across F357.
g If the resistance is 0
Ω, the A85 Oven assembly is probably faulty.
h If the resistance was greater than 0
Ω, replace the fuse.
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