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Safety Considerations
Before you disassemble the signal generator, turn the power switch off
WARNING
and unplug the power cord. Failure to unplug the signal generator can
result in personal injury.
Electrostatic discharge (ESD) can damage or destroy electronic components. All
CAUTION
work on electronic assemblies should be performed at a static-safe workstation.
Check Signal Generator Functionality
Use the following procedure to confirm that the signal generator powers up and the internal check
identifies no errors. The internal check evaluates the operation of the signal generator and returns an error
message if it detects a problem.
When the signal generator is first connected to ac line power, the error message
NOTE
ERROR 514, Reference Oven Cold occurs which causes both the OVEN COLD annunciator
and the ERR annunciator to turn on.
After approximately five minutes, the OVEN COLD annunciator automatically clears, but the
ERR annunciator remains on until all errors are cleared from the error queue.
1. Turn on the signal generator and let it warm up for at least five minutes.
2. Run the signal generator self-test by pressing
Run Complete Self Test
guide to troubleshoot any failures detected by the test.
Some circuits may require up to 50 minutes to warm up before passing the self-test. If
NOTE
self-tests continue to fail after 50 minutes of warm up, troubleshoot the instrument.
3. Check to see if the ERR annunciator is on.
• If the ERR annunciator is on, review the error messages in the error queue by pressing
>
Utility
Error Info
to the signal generator error messages document for information about each error message.)
After resolving all problems causing errors, press
• If the ERR annunciator is off, the signal generator functionality check has passed.
. Upon completion a summary of the self-test will be displayed. Use the service
. The first error message in the error queue appears in the display text area. (Refer
>
Utility
Instrument Info/Help Mode
Clear Error Queue(s)
>
>
Self Test
.
5
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