Dell 858-BBBE, E2014T manual Built-in Diagnostics, 38  Troubleshooting

Built-in Diagnostics

Your monitor has a built-in diagnostic tool that helps you determine if the problems 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.

To run the built-in diagnostics:

1.Make sure that the screen is clean

2.Unplug the video cable(s) from the computer or 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.

38        Troubleshooting