IBM X.25 manual Removal and Replacement Procedures, ON, or

3.Insert your copyIBMof Realtimethe Interface Co-Processor:

Advanced Diagnosticdiskette into the diskette drive, if previously removed.

4.When the system is powered on (step 5), observe the yellow light emitting diode (LED) on the unrecognized co-processor adapter.

Note: The	LED	should	come on for a few seconds and then go
off	and	remain	off.

5.Set the Power switch on the system unit (and expansion unit, if attached) to On.

6.Respond to the screen prompts that brought you to the previous screen.

IS THE LED NEVER “ON,” CONTINUOUSLY	“ON,” OR
BLINKING?

YES Replace the co-processor adapter and rerun the PCI co-processor adapter diagnostics.

NO You have completed the problem-isolation procedures. Set the system unit’s power switch to OFF.

If you still suspect a problem, check the entire system for loose or damaged connectors.

If you have followed these procedures and still have not solved the problem, request technical assistance.

Removal and Replacement Procedures

Use the procedures in this section to remove a failing co-processor adapter and to install a replacement.

Problem Determination Procedures4-17