622 Chapter14
Analyzer Messages
Interpreting Analyzer Messages
CAL: DATA NOT STORED
CAL AMP NEEDED (U)(H)
The current correction-factor data is the default calibration data. The
instrument firmware prevents the default data from being stored.
While the default data is in use, a flag is set. If
CAL STORE is pressed,
the error message is displayed and
CAL STORE is disabled. Successful
completion of the
CAL AMPTD routine clears the flag.
Related Assemblies
A16 processor/video assembly
Troubleshooting Hints
Perform the CAL FREQ and CAL AMPTD. For 8592L, 8593E, 8595E, and
8596E spectrum analyzers, also perform the
CAL YTF routine. If the
error message reappears after pressing
CAL STORE, the CAL AMPTD
routine was not successfully completed.
Pressing
CAL FETCH also clears the correction-data error flag and can
permit erroneous data to be stored. Use
CAL FETCH only for
troubleshooting.
CAL: FM SPAN SENS FAIL (H)
During the CAL FREQ self-calibration routine, the analyzer cannot set
the span sensitivity of the FM coil. The output of the fine-tune DAC,
located on the A7 analog interface assembly, is changed to move the
displayed signal four divisions. If the signal does not move to within
± 1.25 divisions of the expected display position, the error message is
displayed.
Related Assemblies
8590L and 8591E spectrum analyzers only: A6 YTO, A7 analog
interface.
All other 8590 E-Series and L-Series spectrum analyzers: A3A7 YTO,
A7 analog interface.
Troubleshooting Hints
Perform the CAL FREQ routine again.
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