Error Messages Errors appearing on pop-up menus
388 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
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.
error message Out of specification
description The unit has been found outside the specification.This may happen due to vari-
ous reasons.
affected modules TLS
action Please run LambdaZero from the menu first. If the failure persists, reboot the
mainframe and run realign from the menu. If this does not help, please return
the unit to your local service center for repair.
error message Duty cycle out of range
description The power control loop cannot control the correct output power anymore, be-
cause the duty cycle of the external modulation is too small.
affected modules TLS
action Increase the duty cycle (that is, increase the on-state duration of the modulated
signal)
error message Beampath safety error
description A problem on the module has lead to an unsafe operation state. For this reason,
the shutter has been closed.
affected modules All attenuators
action If this problem occurs several times, please send the module to the local Agilent
service center for repair.
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