8163A/B, 8164A/B, 8166A/B User’s Guide 393Error Messages 1425016 +5V attenuator encoder voltage on TCFS board not in limits25017 +2.5V attenuator encoder voltage on TCFS board not in limitsaction Please return the unit to your local service center for repairerror message TCFS Temperature Selftest Failed (error value)description Verifies whether the TCFS temperature sensors are working correctlyerror value 25021 TCFS board temperature sensor U620 above limit25022 TCFS case temperature sensor possibly not connectedaction Please return the unit to your local service center for repairerror message TCFS Amp. Offset Selftest Failed (error value)description Checks whether an applied offset for channel A, B and M is measured within limitserror value 25031 TCFS Chan A offset not in limits25032 TCFS Chan B offset not in limits25034 TCFS Chan M offset not in limitsaction Please return the unit to your local service center for repairerror message TCFS Amplifier Selftest Failed (error value)description This test calibrates the TCFS A, B and M channel and verifies if all resulting values are in limitserror value 25041 TCFS Hybrid amplifier offset could not be removed25042 One of the channels A, B or M failed during calibrationaction Please return the unit to your local service center for repair
