Dell C7016H User Guide - Page 48

Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety Instruction 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 cables from the back of the computer. To ensure proper Self- Test operation, remove all VGA / DP / HDMI (MHL)1 / HDMI (MHL)2 cables from the back of 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 selftest mode, the power LED remains white. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen. 4. This box also appears during normal system operation, if the video cable becomes disconnected or damaged. The monitor will enter Power Save Mode after 5 minutes if left at this state. 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. 48 Troubleshooting