AT&T MERLIN LEGEND Communications System Release 2.0 Maintenance And Troubleshooting Manual page 110

Control Unit Problems
Step
4
Demand Test Slot 00:
Make a selection
Peek
[Poke]
[System Erase]
Exit
5
Slot 00 System Erase:
System will be down. . .
Do you want to continue?
Yes
No
Exit
Replacing the Processor
A failed processor must be replaced immediately, as follows.
1. If possible, save all the system programming to a floppy disk by using
the backup function.
NOTE:
When the processor fails, backup is usually impossible.
2. Power down the system by turning off the following components in the
order given:
a. power supply on the basic carrier
b. power supply on each expansion carrier
c. auxiliary power units (if present)
4-20 Processor Problems
Display
Instructions
Poke and System Erase are not
displayed so that the customer does not
accidentally change the processor
memory.
To select System Erase, select the left
button on Line 5 twice.
Select Yes.