Troubleshooting
This section contains information about how to troubleshoot instrument proble ms
in order to isolate faulty modules in the ECO8000 Series.
General troubleshooting strategy
Use the following guidelines as a general troubleshooting strategy:
When troubleshooting an unknown instrument problem, first perform the
performance verification procedures. (See the ECO8000 Series Specifications
and Performance Verification Technical Reference manual.)
When troubleshooting a known instrument problem, run only the diagnostic
portion o f the performance verification procedures to gain information about
the subsystems.
Try to determine which of the three main subsystems are affected. These
subsystems are largely independent and knowing which system is affected
will he
lp isolate the problem to certain boards.
Channel Control system (left keyboard, channel status LEDs, Main board
and ch
annel module boards)
Configuration and Monitoring system (right keyboard, LCD display, and
Proc
essor board)
Redundant Power system (Power Supply modules and Combiner board).
Verify all of the internal connections to powe r and user si gnals.
ECO8000 Series Service Manual 4–1
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