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If You Have a Problem
Before You Call Hewlett-Packard
If
the
analyzer
measurements
appear
inaccurate
If it appears that the cable TV analyzer measurements are inaccurate the
cable TV analyzer correction factors may have been removed from the
measurement results. If this occurs, perform the frequency and amplitude
self-calibration routines given in “Turning on the Analyzer for the First Time”
in Chapter 2. After running these routines, press CAL STORE , then perform
the conEdence test.
Perform the conEdence test by pressing the following keys:
m
More 1 of 4
CQNF
TEST
The cable TV analyzer performs a self-test by cycling through its major
functions. The confidence test is performed within 1 to 2 minutes.
If the unit does not function properly, messages appear on the screen. See
“Error Messages” for explanations of error messages.
If error messages appear, record the messages and refer to the cable TV
analyzer service guide or contact the nearest Hewlett-Packard Sales and
Service Office listed in Table
8-l.
If
the
error
message
FREQ
UNCAL
stays
on
screen
Perform the frequency self-calibration routine by pressing CAL FREQ , wait
for the routine to complete, then press CAL
STONE
.
8-7