Agilent Technologies 8590 Series Service Manual page 652

Analyzer Messages
Interpreting Analyzer Messages
2. Use
DISPLAY CAL DATA
factors.
3. Perform the
CAL AMPTD
to monitor changes in the bandwidth control factors
CAL DATA
each time the
CAL AMPTD
4. Repeat the
CONF TEST
present, look for an unstable bandwidth-filter assembly or
bandwidth control line.
Refer to bandwidth control line information in
troubleshooting the bandwidth control lines.
• The bandpass shape of the failed resolution bandwidths may have
drifted since the last time the self-calibration routines were run.
1. Look at the bandpass shape of each failed bandwidth. If
realignment is needed, refer to the crystal and LC bandwidth
filter adjustment procedure in
2. Run the
CAL AMPTD
using
CAL STORE
3. Repeat the
CONF TEST
present, one of the bandwidth-filter assemblies may be defective.
Refer to the
CONF TEST
about the confidence test routine.
RF PRESEL ERROR (H)
Indicates that the preselector peak routine cannot be performed.
For 8592L, 8593E, 8595E, and 8596E spectrum analyzers only.
Related Assemblies
A7 analog interface assembly, A3A8 (switched) YIG-tuned filter.
Troubleshooting Hints
Ensure that the signal source is connected to the RF input.
RF PRESEL TIMEOUT (H)
Indicates that the preselector peak routine cannot be performed.
Related Assemblies
A7 analog interface assembly, A3A8 (switched) YIG-tuned filter.
Troubleshooting Hints
Ensure that the signal source is connected to the RF input.
652
to view the current bandwidth control
self-calibration routine. Use
routine is performed.
routine. If the error message is still
Chapter 2
self-calibration routine and store the data
.
routine. If the error message is still
description in Chapter 13
DISPLAY
Chapter 5 when
.
for more information
Chapter 14