Personal Computer User Manual

After checking the character fonts, respond to the prompt:

Is the display correct ? (Y/N)

If the characters match the illustration, select Y. If you find a

problem with the characters on the screen, select N to display

the error message.

Video Check

To check the video output of your monochrome adapter,

select

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 test to adjust the size of the screen display. 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, select 6. 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.

Press any key to return to the menu.

C-14

Performing System Diagnostics