IBM ARTIC X.25, Manual To Operations, Page: 45 / 70

3. Insert your copy of the
IBM Realtime Interface Co-Processor:
Advanced Diagnostic diskette 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 Procedures
4-17