IBM 7026-H80 - RS/6000 - 256 MB RAM Service Manual page 116

Step 1522-4
Use the information in the "I/O Drawer and Power Supply LED Status" on page 28 to
answer the following question.
Note: This table also applies to the CEC drawer LEDs.
Is the power supply LED blinking quickly?
NO
YES
Step 1522-5
Is there a power supply with a flashing LED?
NO
YES
Step 1522-6
Are both I/O drawer power supply LEDs flashing?
NO
YES
98
Service Guide
Check the SPCN cabling.
Replace the CEC drawer power supply.
Replace the CEC drawer backplane.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostics Information for Multiple Bus Systems
Replace the power supply with the flashing LED.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostics Information for Multiple Bus Systems
Go to "Step 1522-7" on page 99.
Go to "Step 1522-6".
Replace the power supply with the flashing LED.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostics Information for Multiple Bus Systems
Replace the CEC backplane.
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostics Information for Multiple Bus Systems