Processor Problems

The backup floppy disk or original system programming disk. See System Programming and Maintenance for instructions.

The backup memory card or original system programming memory card (Release 3.0 and later). See Appendix D, “Backing Up with a Memory Card,” for instructions.

12Reconnect the D8W cord(s) connecting the SMDR printer and/or system programming PC.

13Attach a tag to the old processor.

Use the tag to identify any visible problems and relevant error reports.

Replacing the Feature Module

NOTE:

This section applies only to releases earlier than Release 3.0.

CAUTION:

Make sure that you have a backup of system programming before replacing the feature module. See “Backing Up System Programming.”

To replace the feature module, follow the steps below.

1 Make sure system power is off.

2Remove the processor from the carrier.

a Press up on the tab on the bottom rear of the module. b Pull the bottom of the module away from the carrier.

c Lift upward to disengage the module from the rod on the top of the carrier.

3Place the processor on a flat surface.

4Grasp both metal rings on the outside of the feature module and pull straight up.

Control Unit Problems 4-31

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AT&T 3.0 manual Replacing the Feature Module