HP 70000 series - Page 312

User
Application
Errors
0001
{
0999
*0021
Video output cable
Cause: The rear panel VIDEO OUT signal from the HP 70902A IF section is not getting to the
VIDEO input of the HP 70900B local oscillator source or 70903A.
Cure: Check the rear panel VIDEO OUT connection on the HP 70902A IF section. Be sure it is
routed
properly
and
the
cable
is
not
defective
.
0022
LC bandwidths
Cause: The signal amplitude of the HP 70902A IF section is too low when it is set to the LC
bandwidths (10 to 300 kHz).
Cure: The LC lters in the HP 70902A IF section require adjustment or repair.
0023
CRYSTAL
bandwidths
Cause:
The
signal
amplitude
of
the
HP
70902A
IF
section
is
too
low when it is set to the crystal
bandwidths
(
10
Hz
to
3
kHz
).
Cure:
The
crystal
lters
in
the
HP
70902A
IF
section
require
adjustment or repair.
0024
Problem/ampl low?
Cause: The signal amplitude of the HP 70902A IF section is too low in both the LC and Xtal
bandwidths. The program stops testing the HP 70902A IF section when this error is generated.
Cure:
Check
the
connection
at
the
21.4
MHz
IN on the rear panel of the HP 70902A IF section.
Be
sure
the
cable
is
routed
correctly
and
is not defective. If this does not remedy the problem,
the
HP
70902A
IF
section
21.4
MHz
Input
Filter requires adjustment or repair.
0025
Step
gain
amplifier
Cause: The gain of one or more of the step gain ampliers of the HP 70902A IF section is
incorrect.
Cure: The step gain ampliers in the HP 70902A IF section require adjustment or repair
.
0026
Res BW-accuracy
Cause: The HP 70902A IF section resolution bandwidth is incorrect.
Cure: The bandwidth lter adjustments in the HP 70902A IF section should be performed. If
this does not remedy the problem, repair the HP 70902A IF section LC or crystal bandwidth
lters.
Error Messages 6-5