Keysight Technologies P Series Service Manual page 75

Instrument
ChA measurement board
check
ChB peak path
ChB CW path
ChB measurement board
check
Keysight N8262A Service Guide
Purpose
Executes an internal self-test
procedure on the
measurement board assembly
for channel A
Verifies that the peak path of
channel B is working
(Note: This does not prove that
the peak path meets its
specifications)
Verifies that the average path
of channel B is working
(Note: This does not prove that
the average path meets its
specifications)
Executes an internal self-test
procedure on the
measurement board assembly
for channel B
Debug tips
Replace the measurement
board assembly for channel A
to see if this clears the fault
Replace the measurement
board assembly for channel B
to see if this clears the fault
Not applicable
Replace the measurement
board assembly for channel B
to see if this clears the fault
Troubleshooting Guide
Possible faul ts
– Measurement board
assembly, channel A (high
probability)
– Mother board (low
probability)
– Measurement board
assembly, channel B (low
probability)
– Mother board (high
probability)
Mother board
– Measurement board
assembly, channel B (high
probability)
– Mother board (low
probability)
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