Dell E2222H Service-Handbuch - Seite 12

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Built-in diagnostics

Your monitor has a built-in diagnostic tool that helps you determine if any screen abnormality

you experience is an inherent problem with your monitor, or with your computer and video card.

1 2 3 4

Button 1

Button 2

Button 3

Button 4

To run the built-in diagnostics:

1. Ensure that the screen is clean (no dust particles on the surface of the screen).

2. Press and hold Button 4 for about 4 seconds and wait for a pop up menu.

3. Use Button 1 or 2 to select the

A gray test pattern appears at the beginning of the diagnostic program.

4. Carefully inspect the screen for abnormalities.

5. Press Button 1 to change the test patterns.

6. Repeat steps 4 and 5 to inspect the display in red, green, blue, black, white and text

screens.

7. When in White color test screen, check for white color uniformity and if there white color

appears greenish/reddish, etc.

8. Press Button 1 to end the diagnostic program.

6. Trouble Shooting Instructions

and press

to confirm.