HP 70000 series - Page 334

Hardware
Broken
Errors
7000
{
7999
7014
12.5 MZ to YTO LK BD
12.5 MHz to YIG-tuned oscillator lock board error
Cause: The internal 12.5 MHz reference signal is not at the correct power level on the YTO
phase lock board. 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-P
ackard
for
servicing.
7015
YTO unleveled YIG-tuned oscillator unleveled
Cause: The leveling amplier for the Local Oscillator output is not able to generate the
proper output level. 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.
7016
YTO
is
unlocked
YIG-tuned
oscillator
is
unlocked
Cause:
During
a
sweep
of
the
local
oscillator
,
phase
lock
was lost. If an external frequency
reference
is
being
used, its accuracy should be veried.
Cure:
V
erify external reference accuracy. If no external reference is being used, module
service
or
calibration is necessary. Return to Hewlett-Packard for servicing.
7017
External ref (100 MZ)
External
100
MHz
reference
error
Cause: The detector used to automatically switch between an internal and external reference
is not operating properly. 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.
7018
50 MZ to sampler
50 MHz to sampler error
Cause: The internal 50 MHz sampler drive signal is not at the correct power level at the
sampler. 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 6-27