6
Checking Signal Generator Functionality
Use the following procedure to confirm that the signal generator powers on and that the internal check does not identify
errors. The internal check evaluates the operation of the signal generator and returns an error message if it detects a
problem.
NOTE
When signal generators are first connected to ac line power, the error message
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 thirty minutes.
2. Run the instrument self-test by pressing
Utility
>
Instrument Info/Help Mode
>
Self Test
>
Run Complete Self Test
. Upon
completion, a summary of the self-test will be displayed. Use the service guide to troubleshoot any failures detected by
the test.
NOTE
Some circuits may require up to 50 minutes to warm up before passing the self-test. If 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
>
View Next Error Message
. The first error message in the error queue appears in the display text
area. (Refer to the signal generator error messages document for information about each error message.)
After resolving all problems causing errors, press
Utility
>
Clear Error Queue(s)
.
•
If the ERR annunciator is off, the signal generator functionality check has passed.
