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5
Troubleshooting
78
Scroll down at least 256 samples to verify the data. My
Bus 1 shows four 8- bit binary counters decrementing by 1.
If the listing does not look similar to the figure, there is a
possible problem with the cable or probe. Cause for cable
test failures include:
•
Open channel.
•
Channel shorted to a neighboring channel.
•
Channel shorted to either ground or a supply voltage.
If the test data is not correct, then perform the following
step to isolate the failure.
11
Verify the failure:
a
Swap the E5379A probes so that the pod 1 cable
remains connected to the stimulus board's pod 4
connector and the pod 2 cable remains connected to
the stimulus board's pod 5 connector — just using
different probes.
Select the Run icon
b
If the failure is the same (that is, the error follows the
cable) then the cable is suspect.
If the failure switches pods (that is, the error follows the
E5379A probe) the probe is suspect.
.
16962A Logic Analyzer Service Guide
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