Dell The world’s first 5K . Dell UltraSharp 27 Monitor Users Guide - Page 51
Troubleshooting, Self-Test
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Troubleshooting CAUTION: 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. 3. Turn On the monitor. The floating 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 remains white. Also, depending upon the selected input, one of the dialog boxes shown below will continuously scroll through the screen. Dell UP2715K No DP Cable The display will go into Power Save Mode in 5 minutes. www.dell.com/support/monitors or Dell UP2715K No mDP Cable The display will go into Power Save Mode in 5 minutes. www.dell.com/support/monitors 4. This box also appears during normal system operation, if the video cable becomes disconnected or damaged. 5. 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 51