HP 70000 series - Page 338

Hardware
Broken
Errors
7000
{
7999
7035
Dist amp B error
Either the input to the HP 70310A precision frequency reference Distribution Amplier \B"
board assembly is beyond the specied operating range, or a hardware failure exists. The most
probable causes are either: (a) one or more outputs are unleveled due to faulty HP 70310A
precision frequency reference hardware, or (b) an input that is too low in power.
7036
HP-MSIB error
7041
FFS
won't
tune
low
Fractional
frequency
source
cannot
tune
low
Cause: The frequency synthesizer will not acquire lock at the lowest end of its operating range.
This error will only occur on power up of the system, or when the TEST command is invoked
from
the
front
panel
or
remotely
.
Cure:
If
an
external
frequency
reference
is
being
used,
its
accuracy
should
be
veried.
If
the
reference
is
good,
there is a hardware failure. The module must be returned to
Hewlett-P
ackard
for
servicing.
7042
FFS
won't
tune
high
Fractional
frequency
source
cannot tune high
Cause:
The
frequency
synthesizer will not acquire lock at the highest end of its operating
range. This error will only occur on power up, or when the TEST command is invoked, either
remotely or from the front panel.
Cure: If an external frequency reference is being used, its accuracy should be veried.
If the reference is good, there is a hardware failure. The module must be returned to
Hewlett-Packard for servicing.
7043
Freq board adjust
Frequency-board adjust
Cause: The Frequency control board is out of calibration. This error will only occur on power
up of the system, or when the TEST command is invoked, either from the front panel or
remotely.
Cure: Return to Hewlett-Packard for servicing.
Error Messages 6-31