378 8163A/B, 8164A/B, 8166A/B User’s Guide
14 Error Messages
error message Zeroing failed. Light?
description Zeroing has still detected some light. Either the input is not darkened properly or there is some error on the
powermeter module/head.
affected modules Powermeter
action Darken the optical input(s) properly. If the failure persists, please return the unit to your local service center
for repair.
error message Selftest failed
description The selftest of the module in slot <slot> has failed. If the slot is occupied by an optical head interface
module, the head selftest has failed.
affected modules all
action Please return the unit to your local service center for repair.
error message BRAM corrupted
description The battery buffered RAM is corrupted.
affected modules Mainframe
action Please return the unit to your local service center for repair.
error message Please run realign (from menu)
description The alignment of laser cavity is not ideal.
affected modules TLS
action Please follow this instruction and run the realignment, which can be selected from the menu of the tunable
laser source module. If the failure persists, please return the unit to your local service center for repair.
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