Lucent Technologies MERLIN LEGEND Release 6.1 Maintenance And Troubleshooting Manual page 142

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting 555-661-140
Processor Problems
If hidden key is pressed, the following screen appears.
Replacing the Processor Module
A failed processor module must be replaced immediately.
To replace the processor module, follow the steps below.
If possible, save system programming.
See Appendix D, "Backing Up with a Memory Card." To back up onto a
floppy disk, see System Programming and Maintenance (SPM) .
Power down the system.
a. Turn off the power supply on the basic carrier.
b. Turn off the power supply on each expansion carrier.
c. Unplug the auxiliary power units (if present) from the AC outlet.
Unplug the D8W cord(s) connecting the SMDR printer and/or
system programming PC.
Remove the processor module.
Inspect the processor module for any visible problems.
Inspect the carrier.
For Release 3.0 and later, skip to Step 8. For Release 2.1 and earlier,
install a feature module in the new processor.
Issue 1
August 1998
Page 4-30