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4
Troubleshooting Guide
Introduction
This chapter enables qualified service personnel to diagnose suspected faults
with the power meter Rmt I/O (Remote Input/Output) signal lines and RS232/422
serial port.
If there is a problem when attempting to use the RS232/422 serial interface or the
remote I/O functions, consult the user's guide and confirm that all the user setups
are correct before proceeding with the following fault finding flowcharts.
50
Keysight N1911A/1912A Service Guide
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