IBM 6H0, Service Manual

Page: 121 / 561

Step 1522-13
Disconnect the ac power cable to each power supply of the CEC drawer and remove
the following from the CEC drawer:
1. CEC processor card
2. CEC memory card(s)
Reconnect the ac power cables to each power supply of the CEC drawer and attempt
to power on the CEC.
Does the CEC power on?
NO Go to “Step 1522-16” on page 102.
YES Go to “Step 1522-14.”
Step 1522-14
Disconnect the ac power cable from each power supply. Then reinsert the following
components in the CEC drawer, one at a time, in the sequence listed. After reinserting,
reconnect the ac power cable to each power supply.
1. CEC processor card
2. CEC memory card(s)
Does the CEC power on?
NO Replace the defective card just reinserted.
Reinsert any remaining cards in this step.
This ends the procedure. Go to
″
Map 0410: Repair Checkout
″
in the
Diagnostics Information for Multiple Bus Systems .
YES Go to “Step 1522-15.”
Step 1522-15
Have all cards in this step been reinserted?
NO Go to “Step 1522-14.”
This ends the procedure. Go to
″
Map 0410: Repair Checkout
″
in the
Diagnostics Information for Multiple Bus Systems .
YES The symptom has changed. Call your next level of support for assistance.
Chapter 3. Maintenance Analysis Procedures
101