Agilent Technologies 8590 Series Service Manual page 621

Analyzers assembly-level repair
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CAL:_ _ _ (M)
During the self-calibration routine, messages may appear on the
display to indicate how the calibration routines are progressing. For
example, sweep, freq, span, MC delay, FM coil, and atten can appear
on the analyzer display.
Please note that it is normal for the φ LOCK OFF and REF
UNLOCK error messages to appear briefly during
Troubleshooting Hints
If the firmware detects a problem during the self-calibration routine,
the routine will stop and display an error message (H). Refer to the
appropriate error-message description in this section.
CAL:_ _ _: done Press CAL STORE to save (M)
Indicates that the self-calibration routine is finished and that you
should press CAL STORE.
CAL: cannot execute CALAMP
enter: 0 dB PREAMP GAIN (U)(H)
The preamplifier gain is not set to 0 dB. The preamplifier gain must be
set to 0 dB for the CAL AMPTD routine to be performed.
Troubleshooting Hints
Reset the preamplifier gain to 0 dB using the following routines.
1. Press
AMPLITUDE
preamplifier gain to 0 dB.
2. Perform the
CAL AMPTD
3. Press
CAL STORE
preamplifier setting of 0 dB.
Please note that pressing
setting to 0 dB.
If this message is still displayed after resetting the preamp gain, it is
likely there is a failure in RAM on the A16 processor/video assembly.
Chapter 14
,
,
More 1 of 3
EXTERNAL PREAMPG
routine.
to store the new calibration factors and the
does not initialize the preamp-gain
PRESET
Analyzer Messages
Interpreting Analyzer Messages
.
CAL FREQ
and set the
621

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