Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Introduction
Page 1-28
Maintenance Strategy
Check the Access Log
At any time during the maintenance process, you can check the access log for
maintenance and system programming. This log indicates the last 20 times that
someone accessed maintenance or system programming. If you find that
someone accessed maintenance or system programming shortly before the
problem originated, that person may be able to help you isolate the trouble by
providing additional information on what was done.
Once you receive that information, use any maintenance or system
programming feature that may lead to the root of the problem. See “Access Log
for Maintenance and System Programming” in Chapter 2
for additional
information. See
System Programming for information about system
programming and the Inspect function.
Check the Power Supply
If the error logs indicate the power supply as the source of the problem, see
‘‘
Power Supply Problems’’ in Chapter 4.
Check the Processor
If the error logs indicate the processor as the source of the problem, use the
following as a guideline to check the processor.
■ Back up system programming.
— System programming can be backed up to a floppy disk, using
SPM.
— For Release 3.0 and later, system programming can be backed up
to a memory card, using SPM or the MLX-20L console. See
Appendix D, ‘‘
Backing Up with a Memory Card’’, for more
information.
■ See ‘‘Processor Problems’’ in Chapter 4 to troubleshoot the processor.