IBM 6151 Maintenance And Service Manual page 257

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IBM 5154 Enhanced Color Graphics Display PIC 5800
Use this PIC to get an SRN when there is a problem that prevents
you from reading the display screen easily, the two-digit display is
blank, and the power-on indicator is on.
Step
1
1.
Be sure the power switch on the display is set to On.
2. Look at the power-on indicator on the display.
Power-On
Indle.tor
11t21J~L
__
-----;r-Pow.r
Switch
~-t--t----7"~
Contr.st
Control
Brlghtn•••
Control
AJZBl97
IS THE POWER-ON INDICATOR ON?
YES Go to "Step 3" on page 3-5800-3.
NO Continue on the next page.
(6/88) Problem Isolation Charts 3-5800-1