IBM 6151 Maintenance And Service Manual page 75

Step 16
Look at the SRN you recorded after the repair checkout.
4. Write the Service Request Number here:
13 - 234 -
100 - :Jd34 -
JJ64
AJZB179
DID THE REPAIR CHECKOUT RUN RESULT IN THE SAME
SRN YOU HAVE BEEN ANALYZING (ignore any location
code changes)?
NO Either the system has more than one problem or another
problem was created during service. Go to "Step 3" on
page 3-0010-4 and analyze the new SRN.
YES Remove the new FRU and install the original FRU; then
continue on the next page.
(6/88) Problem Isolation Charts 3-0010-17