Maintenance for CSI systems
555-233-119
64
Issue 5 October 2002
Screen 11
shows all possible SPE-Down alarms.
Screen 11.
Display Alarms
NOTE:
The “MAINT” designation is used for PR-MAINT.
Determine the location of the problem. It is possible for two or more circuit packs
to have failed. It is also possible for a fatal problem with one circuit pack to affect
another circuit pack, especially the Processor circuit pack.
Use all three of the following methods to determine where the fatal fault lies.
■
Type display alarms.
display alarms shows where maintenance thinks the problem lies. The
alarms are a good indication of why the system went down.
■
Observe red LEDs on the circuit pack to determine where software or
processor firmware (LMM) had a problem.
■
Type reset.
Observe all the diagnostics on the screen, and note if the LMM has a
problem with any of the diagnostics.
The procedure to get a system out of SPE-Down mode follows.
NOTE:
This is important! If you cannot complete the first step or have problems
with the maintenance interface, then the first step should be to replace the
Processor circuit pack. You must obtain a new license file any time you
replace the processor circuit pack.
1. Determine which circuit pack is defective by displaying alarms and
observing the red LEDs.
The following general purpose maintenance procedures may be used with other
repair strategies to clear system-alarmed and user-reported troubles.
DISPLAY ALARMS:
Physical Logical On Alternate Alarm Date Date
Name Name Board? Name Type Alarmed Resolved
------ PROC_BD y ----- MAJOR ------ ------
------ MEM_BD_0 y ----- MAJOR ------ ------
------ M_BUS y ----- MAJOR ------ ------
------ MAINT* y ----- MAJOR ------ ------