Personal Computer User Manual

Light Pen Check

To check the function of a light pen connected to the color

graphics adapter card, select 8. This test checks that a light pen

connected to the color graphics adapter is performing

accurately. When you select this check, you see these prompts:

Confirm light pen is connected

correctly before starting the check.

Start the check ? (Y/N)

After you verify that the light pen is connected properly,

select

You see this prompt:

PLACE LIGHT PEN ON CENTER OF WHITE BLOCK

Touch the center of the white block on the screen with the

light pen. When the light pen is correctly positioned, the block

moves to another part of the screen for a second test. After

three successful tests, the check ends.

An error occurs if one of the following is true:

The light pen is not connected properly

Q The light pen is malfunctioning

You do not touch the square within 12 seconds.

Performing System Diagnostics

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