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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 enables 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 and analog 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 is working correctly but does not detect a video signal. While in self-test
mode, the power LED remains white. Depending upon the selected input, one
of the dialog box is displayed and will continuously scroll through the screen.
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.
5. Trouble Shooting Instructions
Dell 27 Monitor
No USB Type-C Cable
The display will go into Standby Mode in 4 minutes.
www.dell.com/S2719DC
Dell 27 Monitor
No HDMI Cable
The display will go into Standby Mode in 4 minutes.
www.dell.com/S2719DC
or
S2719DC
S2719DC
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