Keysight Technologies P Series - Page 75

Troubleshooting Guide 5
Keysight N8262A Service Guide 75
ChA measurement board
check
Executes an internal self-test
procedure on the
measurement board assembly
for channel A
Replace the measurement
board assembly for channel A
to see if this clears the fault
– Measurement board
assembly, channel A (high
probability)
– Mother board (low
probability)
ChB peak path
Verifies that the peak path of
channel B is working
(Note: This does not prove that
the peak path meets its
specifications)
Replace the measurement
board assembly for channel B
to see if this clears the fault
– Measurement board
assembly, channel B (low
probability)
– Mother board (high
probability)
ChB CW path
Verifies that the average path
of channel B is working
(Note: This does not prove that
the average path meets its
specifications)
Not applicable Mother board
ChB measurement board
check
Executes an internal self-test
procedure on the
measurement board assembly
for channel B
Replace the measurement
board assembly for channel B
to see if this clears the fault
– Measurement board
assembly, channel B (high
probability)
– Mother board (low
probability)
Instrument Purpose Debug tips Possible faults