To Troubleshoot Self-Test Lockup Failures - Agilent Technologies 35670A Service Manual

Agilent 35670A

To troubleshoot self-test lockup failures

Use this test to continue troubleshooting if the analyzer locked up while running the
functional test ALL.
Step 1. Check the clock signal.
G
• Set the power switch to on (
• Using an oscilloscope and a 1 M 10:1 probe, check the following signal.
Oscilloscope Setup
Connect CH1 to A6 TP105
CH1 V/div 2.0 V/div
Input Impedance
1 MΩ
CH1 Coupling
dc
Probe Atten
10
Display Mode
Repetitive
Averaging
8
Time/div
20 ns/div
Trigger
Trg'd
Trig Src
Sweep
Chan1
• If the signal is incorrect, the A6 Digital assembly is probably faulty.
).
l
Parameters
Time
Duty Cycle
Troubleshooting the Analyzer
To troubleshoot self-test lockup failures
Waveform
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