IBM 6151 Maintenance And Service Manual page 355

Step 3
1. Open the customer access door.
2. Look at the four red failure indicators.
/
Brlghtn•••
Override Button
II
IIr\ghlne~
I /
Power
Control " " /
I /
Switch
,,~~~~~~II
""'
/
/
'
- :
1 ~'-'.~~llrnl~V'V~,v~
__
~..P~JJll~.ii'~E1.~'~~~::.~~::I:;
11
--I-r----..-.
Failure
Indicators
AJZB211
ARE ANY OF THE FOUR RED FAILURE INDICATORS ON?
YES
Record
SRN
26-610; then go to "Step 9" on page 3-6100-9.
NO
Continue on the next page.
(6/88) Problem Isolation Charts 3-6100-3