Keysight Technologies 8163A User Manual page 379

14 Error Messages
error message
description
affected modules
action
error message
description
affected modules
action
error message
description
affected modules
action
error message
description
affected modules
action
378
Zeroing failed. Light?
Zeroing has still detected some light. Either the input is not darkened properly or there is some error on the
powermeter module/head.
Powermeter
Darken the optical input(s) properly. If the failure persists, please return the unit to your local service center
for repair.
Selftest failed
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.
all
Please return the unit to your local service center for repair.
BRAM corrupted
The battery buffered RAM is corrupted.
Mainframe
Please return the unit to your local service center for repair.
Please run realign (from menu)
The alignment of laser cavity is not ideal.
TLS
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.
8163A/B, 8164A/B, 8166A/B User's Guide