Keysight Technologies P Series Service Guide

5 Troubleshooting Guide
74 Keysight N8262A Service Guide
Instrument Self-Test
Instrument Purpose Debug tips Possible faults
Test point voltages
Checks that all of the supply
voltages are present
Replace the PSU to see if this
clears the faults
– PSU (low probability)
– Mother board (high
probability)
Calibrator
Verifies that the calibrator is
working
(Note: This test does not
check that the calibrator
meets its specifications)
– Check/reseat that cable
between the calibrator
assembly and the mother
board
– Attempt to adjust the 1 mW
power reference level
– Calibrator assembly (high
probability)
– Mother board (low
probability)
Fan Verifies that the fan is working
– Check/reseat the cable
between the fan assembly
and the mother board
– Check visually to see
whether or not the fan is
working
– Fan assembly (high
probability)
– Mother board (low
probability)
Battery
Checks that the lithium
manganese battery on the
mother board is working
Replace the battery to see if
this clears the fault
– Lithium manganese battery
(high probability)
– Mother board (low
probability)
ChA peak path
Verifies that the peak path of
channel A is working
(Note: This does not prove that
the peak path meets its
specifications)
Replace the measurement
board assembly for channel A
to see if this clears the fault
– Measurement board
assembly, channel A (low
probability)
– Mother board (high
probability)
ChA CW path
Verifies that the average path
of channel A is working
(Note: This does not prove that
the average path meets its
specifications)
Not applicable Mother board

Keysight Technologies P Series Specifications

General

Brand	Keysight Technologies
Model	P Series
Category	Measuring Instruments
Language	English