Keysight Technologies 8163A User Manual page 394

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8163A/B, 8164A/B, 8166A/B User's Guide
25016 +5V attenuator encoder voltage on TCFS board not in limits
25017 +2.5V attenuator encoder voltage on TCFS board not in limits
Please return the unit to your local service center for repair
TCFS Temperature Selftest Failed (error value)
Verifies whether the TCFS temperature sensors are working correctly
25021 TCFS board temperature sensor U620 above limit
25022 TCFS case temperature sensor possibly not connected
Please return the unit to your local service center for repair
TCFS Amp. Offset Selftest Failed (error value)
Checks whether an applied offset for channel A, B and M is measured within limits
25031 TCFS Chan A offset not in limits
25032 TCFS Chan B offset not in limits
25034 TCFS Chan M offset not in limits
Please return the unit to your local service center for repair
TCFS Amplifier Selftest Failed (error value)
This test calibrates the TCFS A, B and M channel and verifies if all resulting values are in limits
25041 TCFS Hybrid amplifier offset could not be removed
25042 One of the channels A, B or M failed during calibration
Please return the unit to your local service center for repair
Error Messages 14
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