Dell P2714T Multi with LED Users Guide - Page 36
Built-in Diagnostics
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Built-in Diagnostics Your monitor has a built-in diagnostic tool that helps you determine if the problems is with your monitor or with your computer and video card. NOTE: You can run the built-in diagnostics only when no display cables are connected and the monitor is in self-test mode. 1 2 3 4 To run the built-in diagnostics: 1. Make sure the screen is clean. 2. Unplug the display cable(s) from the computer or the monitor. The monitor enters the self-test mode. 3. Press and hold button 1 and button 4 simultaneously for 2 seconds. A gray screen appears. 4. Carefully inspect the screen for abnormalities. 5. Press button 4 again. The color of the screen changes to red. 6. Inspect the display for any abnormalities. 7. Repeat step 5 and step 6 to inspect the display in green, blue, black, white, and text screens. The test is complete when the text-screen appears. To exit, press button 4 again. If you do not see any screen abnormalities while running the built-in diagnostic, the monitor is functioning properly. Check the computer and video card for problems. 36 Troubleshooting