312 Chapter6
General Troubleshooting
System Analyzer Programming Errors (100 to 150)
359 SPAC CAL Cannot find "x" intersection for "bucket 2" of the span
accuracy calibration sweep. This error indicates a
possible failure of the sweep generator, span
attenuator, or main/FM coil sweep switches on the A14
frequency control assembly. Refer to Chapter 10,
"Synthesizer Section."
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 10, "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 10, "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, 2 MHz,
100 kHz, 30 kHz, 10 kHz, 3 kHz, 1 kHz, 300 Hz, 100
Hz, 30 Hz, 10 Hz, 3 Hz, and 1 Hz. 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.
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