Filter
Top Products
I
-
I
-
If You Have a Problem
Before You Call Hewlett-Packard
Check
the
basics
In general, a problem can be caused by a hardware failure, a software error,
or a user error. Often problems may be solved by repeating what was being
done when the problem occurred. A few minutes spent in performing these
simple checks may eliminate time spent waiting for instrument repair.
q Check that the cable TV analyzer is plugged into the proper ac power
source.
q Check that the line socket has power.
q Check that the rear-panel voltage selector switch is set correctly.
q Check that the line fuse is good.
q Check that the cable TV analyzer is turned on.
q Check that the light above
m
is on, indicating that the power supply is
on.
q Check that the other equipment, cables, and connectors are connected
properly and operating correctly.
o
Check the equipment settings in the procedure that was being used when
the problem occurred.
q Check that the test being performed and the expected results are within
the specifications and capabilities of the cable TV analyzer. Refer to the
HP 8590 E-Series
Spectrum
Analym-s
and HP 8591 C Cable TV Analyzer
Calibration Guide.
q Check the cable TV analyzer display for error messages. Refer to “Error
Messages,
”
in this chapter.
q Check operation by performing the verification procedures located in the
HP 8590 E-Series
@ectrum
Analyzers and HP 8591 C Cable TV Analyzer
Calibration Guide. Record all results in the performance test record.
q Check the brightness with the intensity knob, or adjust the focus as
described in Chapter 2 if the display focus is poor.
8-5