Ibm 6155 Extended Monochrome Graphics Display Pic 6200 . 3-6200-1 - IBM 6150 Hardware Maintenance Manual

TNL SN20-9843 (03-27-87) to 75X0152 or 75X0166
IBM 6155 Extended Monochrome Graphics Display PIC 6200
Step 1
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.
Be sure the Power On and Brightness Control is set to On.
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Contrast Control
Power On and Brightness Control
IS THE DISPLAY POWER-ON INDICATOR ON?
NO Go to "Step 4" on page 3-6200-4.
YES Continue on the next page.
(3/87) Problem Isolation Charts 3-6200-1