Agilent Technologies 8753ES Option 011 Service Manual page 337

PARALLEL PORT NOT AVAILABLE FOR GPIO
Error Number 165 You have defined the parallel port as COPY for sequencing in the GPIB menu. To
access the parallel port for general purpose I/O (GPIO), set the selection to [GPIO].
PARALLEL PORT NOT AVAILABLE FOR COPY
Error Number 167 You have defined the parallel port as general purpose I/O (GPIO) for sequencing. The
definition was made under the
copy, set the selection to
PHASE LOCK CAL FAILED
Error Number 4 An internal phase lock calibration routine is automatically executed at power-on,
preset, and any time a loss of phase lock is detected. This message indicates that phase
lock calibration was initiated and the first IF detected, but a problem prevented the
calibration from completing successfully. Refer to
Correction Constants,"
appear if you connect a mixer between the RF output and R input before turning on
frequency offset mode. Ignore it: it will go away when you turn on frequency offset.
This message may also appear if you turn on frequency offset mode before you define
the offset.
PHASE LOCK LOST
Error Number 8
Phase lock was acquired but then lost. Refer to
Troubleshooting."
POSSIBLE FALSE LOCK
Error Number 6 Phase lock has been achieved, but the source may be phase-locked to the wrong
harmonic of the synthesizer. Perform
48)" on page 3-10
POWER METER INVALID
Error Number 116 The power meter indicates an out-of-range condition. Check the test setup.
POWER METER NOT SETTLED
Error Number 118 Sequential power meter readings are not consistent. Verify that the equipment is set
up correctly. If so, preset the instrument and restart the operation.
POWER SUPPLY HOT!
Error Number 21 The temperature sensors on the A8 post-regulator assembly have detected an
over-temperature condition. The power supplies regulated on the post-regulator have
been shut down. Refer to
Chapter 10
Local
key menus. To access the parallel port for
PARALLEL [COPY]
and execute pretune correction (test 48). This message may
"Source Pretune Correction Constants (Test
.
Chapter 7 , "Source Troubleshooting."
Service Key Menus and Error Messages
.
Chapter 3 , "Adjustments and
Chapter 7 , "Source
Error Messages
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