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No
Yes
19. Is the SRC 1xxx1206?
No
Yes
20. Perform the following:
a. Power off the system.
b. Remove cards M01-M03, M08-M10, M11-M15, and M20-M24.
c. Power on the system.
Does the system power on?
No
Yes
21. Perform the following:
a. Power off the system.
b. Install one of the Mxx load cards that was removed in step 20.
c. Power on the system.
Does the system power on?
No
Yes
22. Have all the Mxx load cards been installed?
No
Yes
23. Perform the following:
a. Power off the system.
b. See the table at the end of this procedure to identify the possible failing
c. Remove one of the possible failing regulators and install a new regulator card.
d. Power on the system.
Does the system power on?
No
Yes
108
Service Guide
Repeat step 17 on page 107.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostic Information for Multiple Bus Systems
Go to "Entry MAP" on page 79.
Go to step 20.
Go to step 23.
Go to step 21.
The last card that was installed in step 21 is failing, replace the failing
card.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostic Information for Multiple Bus Systems.
Go to step 22.
Repeat step 21.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostic Information for Multiple Bus Systems.
regulators.
Go to step 24 on page 109.
The regulator assembly you removed in this step is failing, replace the
regulator assembly.
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