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Is the SMS screen displayed?
NO One of the FRUs remaining in the system unit is defective.
In the following order, exchange the FRUs that have not been exchanged:
1. Go to the Problem Determination Procedures (test procedures) for the
device attached to the S1 serial port or the display attached to the
graphics adapter, and test those devices. If a problem is found,
follow the procedures for correcting the problem on that device.
2. Graphics adapter (if installed).
3. Cable (async or graphics, including internal async cable).
4. Riser card.
5. System board. (See notes on page 2-1.)
Repeat this step until the defective FRU is identified or all the FRUs have
been exchanged.
If the symptom did not change and all the FRUs have been exchanged,
call your service support person for assistance.
If the symptom changed, check for loose cards and obvious problems. If
you do not find a problem, return to “Step 1540B-1” on page 2-39 and
follow the instructions for the new symptom.
YES Go to “Step 1540B-8” on page 2-46.
Chapter 2. Maintenance Analysis Procedures (MAPs) 2-45