Dell Alienware 25 Gaming AW2521HFL Alienware AW2521HFL Monitor Users Guide - Page 61

Troubleshooting, Self-test

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Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. Self-test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: 1. Turn off both your computer and the monitor. 2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove all digital cables from the back of computer. 3. Turn on the monitor. NOTE: A dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED blinks blue (default color). NOTE: This box also appears during normal system operation, if the video cable is disconnected or damaged. 4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor. If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly. Troubleshooting | 61

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Troubleshooting
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61
Troubleshooting
WARNING: Before you begin any of the procedures in this section,
follow the
Safety instructions
.
Self-test
Your monitor provides a self-test feature that allows you to check whether your
monitor is functioning properly. If your monitor and computer are properly
connected but the monitor screen remains dark, run the monitor self-test by
performing the following steps:
1.
Turn off both your computer and the monitor.
2.
Unplug the video cable from the back of the computer. To ensure proper
Self-Test operation, remove all digital cables from the back of computer.
3.
Turn on the monitor.
NOTE: A dialog box should appear on-screen (against a black
background), if the monitor cannot sense a video signal and is working
correctly. While in self-test mode, the power LED blinks blue (default
color).
NOTE: This box also appears during normal system operation, if the video
cable is disconnected or damaged.
4.
Turn off your monitor and reconnect the video cable; then turn on both
your computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check
your video controller and computer, because your monitor is functioning
properly.