Technical information

2.7.2.3.3 Preliminary Steps

Proceed as follows.

1. Insert the Color Displays Test-Pattern Diskette into drive A of the

system unit.

CAUTION:

Use caution when making adjustments with the cover removed. There are

high voltages on the analog and video cards.

2. Power on the system unit and the display. The system unit runs its

internal checks, and then loads the program from the diskette.

Note: The following error codes may appear. Take the action specified

to clear the problem.

 ASP001E: Cannot open adapter

The setup program has detected that the display is attached to the

Personal System/2 planar VGA port. To continue testing in VGA

modes only, type VGA at the A: DOS prompt and press Enter

 ASP002E: Cannot open display

The setup program has detected that a display adapter is installed

in the system but cannot find a display attached.

a. Power off the system unit.

b. Check that the display to be tested is attached to the adapter

nearest slot 1.

c. Power on the system unit.

Alternatively, remove all adapters not needed for the test,

reconfigure your Personal System/2 and retry the setup test.

3. With the Brightness control set to center detent (midpoint), adjust G2

and Focus until the setup menu is visible. Select pattern C, and

depress the keyboard spacebar until black field is selected, then

adjust the G2 control to give minimum background illumination.

4. Allow 20 minutes for the display to warm up before making any further

adjustments.

5. Set the Contrast control to midpoint.

PS/2 Displays Maintenance Manual

Preliminary Steps

2.7.2.3.3 - 1