Dell P2723QE, Руководство по обслуживанию

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Service Manual
14
6. Trouble Shooting Instructions
Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an
inherent problem with your monitor, or with your computer and video card.
To run the built-in diagnostics:
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the screen).
2. When there is no video input, press and hold in Up or Down or Left or Right direction will be able to access the Main Menu.
3. Use up or down direction to select the Self-Diagnostic function in the Main Menu > Others and confirm with center key. A gray test
pattern appears at the beginning of the diagnostic program.
4. Carefully inspect the screen for abnormalities.
5. Select Up or Down or Left or Right key to change the test patterns.
6. Repeat steps 4 and 5 to inspect 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 Up or Down or Left or Right key to end the diagnostic program.