How to Use and Troubleshoot the Dell S2715H Monitor

Table of Contents

1. Using the Monitor Self-Test
2. Using the Built-In Diagnostics
3. No sound from the speakers
4. No power and power LED off
5. Mobile High-Definition Link (MHL) interface is not working
6. USB interface is not working

This article has instructions to troubleshoot issues in a Dell S2715H Monitor.

Using the Monitor Self-Test

The 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.

1. Turn off both the computer and the monitor.
2. Unplug all video cables from the back of the monitor.
3. Turn on the monitor. The floating dialog box would appear on-screen if the monitor cannot sense a video signal but is working properly.
4. The floating dialogue box will also appear during normal system operation if the video cable becomes disconnected or damage.
    

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Using the Built-In Diagnostics

Enable

1. Unplug the video cables from the computer or monitor, the monitor then goes into the self-test mode.
2. Press button 1 and button 4 on the front panel simultaneously for 2 seconds.
3. By pressing the button 4 to change the color which will be changed in gray, red, green, blue, black, white and text screens.

Disable

1. The test is complete when the text screen. To exit, press the button 4 again.
2. The program will return to normal display when there’s no any action took for 5 minutes.

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No sound from the speakers

1. Power off and restart the monitor.
2. Make sure the audio cable connection is connected correctly to PC audio output
3. Unplug the headphone jack from the headphone port (the left side of the unit).
4. Adjust the volume level from Audio option through OSD
5. Adjust the monitor resolution to the optimum resolution, if necessary.
6. If issue persists, Contact Dell Technical Support.

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No power and power LED off

1. Ensure that the power button is pressed to power on the device.
2. Ensure that the adapter connecting the power code and the monitor is properly connected and secure.
3. Ensure the situation of the Power Button LED is On During Active.
4. If issue persists, Contact Dell Technical Support.

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Mobile High-Definition Link (MHL) interface is not working

1. Ensure the MHL cable and MHL device are MHL certified.
2. Check your MHL device is turned on.
3. Check your MHL device is not in standby mode.
4. Check physical MHL cable connection is corresponding to input source selected on OSD Menu: HDMI (MHL).
5. Wait for 30 seconds after connecting MHL cable as some MHL devices require longer recovery time.
6. If issue persists, Contact Dell Technical Support.

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USB interface is not working

1. Make sure the monitor is turned on.
2. Reconnect the upstream cable and the USB peripherals.
3. Switch off and then turn on the monitor again.
4. Reboot the computer.
5. If issue persists, Contact Dell Technical Support.

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