334 Chapter7
General Troubleshooting
Error Messages
360 SPAC CAL The start bucket correction is out of range. This error
indicates a possible failure of the sweep generator on
the A14 frequency control assembly. Refer to “Sweep
Generator Circuit,” in Chapter 11 , “Synthesizer
Section.”
361 SPAC CAL The percent of span correction is out of range. This
error indicates a possible failure of the sweep generator
on the A14 frequency control assembly. Refer to “Sweep
Generator Circuit,” in Chapter 11 , “Synthesizer
Section.”
Automatic IF Errors (400 to 599)
These error codes are generated when the automatic IF
adjustment routine detects a fault. This routine first
adjusts amplitude parameters, then resolution
bandwidths in this sequence: 300 kHz, 1 MHz,
100 kHz, 30 kHz, 10 kHz, 3 kHz, 1 kHz, 300 Hz,
100 Hz, 30 Hz, 10 Hz, 3 Hz, 1 Hz, and 2 MHz. The
routine restarts from the beginning if a fault is
detected. Parameters adjusted after the routine begins
but before the fault is detected are correct; parameters
adjusted later in the sequence are suspect. Refer to
"Automatic IF Adjustment" in Chapter 8.
The IF Section relies on the ADC and video circuitry to
perform its continuous IF adjustments. IF-related
errors occur if the ADC, video circuitry, or A4 assembly
linear path is faulty.
400 AMPL <300 Unable to adjust amplitude of resolution bandwidths
less than 300 Hz.
401 AMPL 300 Unable to adjust amplitude of 300 Hz resolution
bandwidth.
402 AMPL 1K Unable to adjust amplitude of 1 kHz resolution
bandwidth.
403 AMPL 3K Unable to adjust amplitude of 3 kHz resolution
bandwidth.
404 AMPL 10K Unable to adjust amplitude of 10 kHz resolution
bandwidth.
Errors 405 to 416: When these 10K resolution
bandwidth (RBW) error messages appear, use the
following steps to check for errors 581 or 582:
1. Press
LINE to turn the spectrum analyzer off.
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