Agilent Technologies 8590 Series Service Manual page 657

Analyzer Messages
Interpreting Analyzer Messages
Too many signals with valid N dB points (U)
Indicates the N dB PTS function has located two or more signals that
have amplitudes within the specified dB from the signal peak. If this
happens, you should decrease the span of the analyzer so that only the
signal that you want to measure is displayed.
Trace A is not available (U)
Indicates that trace A is in the store-blank mode and cannot be used for
limit-line testing. Use or to change trace A from
CLEAR WRITE A VIEW A
the store-blank mode to the clear write mode, and then turn on
limit-line testing.
UNDF KEY (U)
The softkey number is not recognized by the analyzer.
USING DEFAULTS: _ _ _
The analyzer has determined that the contents of certain RAM
locations are not within the expected values. The number following the
colon corresponds to the location that caused the default condition. This
number was used during the initial design and is not applicable to
troubleshooting.
Related Assemblies
A16 processor/video assembly.
Troubleshooting Hints
This message may indicate that the battery used to power the RAM is
dead. Refer to restoring analyzer memory.
USING DEFAULTS self cal needed (U)
Indicates that the current correction factors are the default correction
factors and that the CAL FREQ &AMPTD routine needs to be
performed. For the 8592L, 8593E, 8595E, or 8596E, the CAL YTF
routine is also required.
Verify gate trigger input is disconnected before
CAL AMPTD (U)
This message is meant to remind you that nothing should be connected
to the GATE TRIGGER INPUT connector on the analyzer rear panel
during the CAL AMPTD routine.
Chapter 14 657