IBM 6151 Maintenance And Service Manual page 409

Step 11
The last adapter installed or a FRU attached to it is failing.
'"-
62-Pin
Connector
•
AJZB24fi
WAS THE LAST ADAPTER INSTALLED THE RT PC
EXPANSION UNIT ADAPTER?
NO Use the removal procedure in the section that applies to the
failing FRU and exchange it; then continue on the next
page.
YES Go to "IBM RT PC 6192 Expansion Unit PIC 0100" on
page 3-0100-1.
(6/88) Problem Isolation Charts 3-9860-11