5. System board (See notes on 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 1540A-1” on page 2-22 and follow the instructions for the new symptom.
Go to “Step 1540A-9” on page 2-31.
7043 43P Series Service Guide
3. Cable (async or graphics, including internal async cable).
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.
Is the SMS screen displayed?
NO
2.Graphics adapter (if installed).
4.Riser card
