Yes Go to step 4.
4. Repeat step 3 on page 112 until a new regulator has been installed in positions
R01, R02, and R04-R10. Then continue with the next step.
5. Remove the processor cards from the system rack.
Attention: To prevent overheating problems, do not remove any card completely
from the card enclosure unless you install an airflow card in its place.
6. Power on the system.
Is SRC 1xxx640x displayed?
No Go to step 7.
Yes Exchange the system backplane assembly in the system rack.
This ends the procedure. Go to ″Map 0410: Repair Checkout″ in the
Diagnostic Information for Multiple Bus Systems.
7. Perform the following:
a. Power off the system.
b. Install one of the cards you removed in step 5.
c. Power on the system.
Is SRC 1xxx640x displayed?
No Go to step 8.
Yes Power off the system.
Replace the last card installed.
This ends the procedure. Go to ″Map 0410: Repair Checkout″ in the
Diagnostic Information for Multiple Bus Systems.
8. Repeat step 7 until all cards have been reinstalled.
This ends the procedure.
Chapter 3. Maintenance Analysis Procedures 113
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