After checking the characters, respond to the prompt:

Is the display correct (Y/N) ?

If the characters displayed match the illustration, press Y and Enter. If they do not match the illustration, press N and then Enter to display the error message.

Video Check

To check the video output of your monochrome adapter, press

4 followed by Enter. This check displays two different screens, black and intensified white. First you see the black screen; press any key to display the intensified white screen. Then press any key to end this check.

You can use this display to adjust the size of the display on the screen. The vertical and horizontal adjustments are located on your monitor.

Sync Check

This test is provided for service purposes only. If you accidentally select this option, press any key to end the test.

Run All Above Checks

To run all the tests on the menu in sequence, press 6 and Enter. When you choose this option, all checks for the monochrome adapter and CRT are performed automatically in sequential order. Although you do not start each test, you must still supply the appropriate responses to progress from one test to the next.

Performing System Diagnostics

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