Dell S2240Tb manual In-Store Demo, Common Problems

3.Press and hold Button 1 and Button 4 on the side panel simultaneously for 2 seconds. A gray screen appears.

4.Carefully inspect the screen for abnormalities.

5.Press Button 4 on the side panel again. The color of the screen changes to red.

6.Inspect the display for any abnormalities.

7.Repeat steps 5 and 6 to inspect the display in green, blue, black, white and text screens.

The test is complete when the text screen appears. To exit, press Button 4 again.

If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer.

In-Store Demo

To enter InStore OSD Mode

Detach/Disconnect all cables. Make sure the monitor is in “On” mode. Press and hold Button 2 and Button 4 for 5 seconds.

To exit InStore OSD Mode

Press and hold Button 2 and Button 4 for 5 seconds. If power is cut off during demo, resume the demo after power is restored.

Common Problems

The following table contains general information about common monitor problems you might encounter and the possible solutions:

Common	What You	Possible Solutions
Symptoms	Experience
No Video/	No picture	• Ensure that the video cable connecting the monitor and the
Power LED off		computer is properly connected and secure.
		• Verify that the power outlet is functioning properly using
		any other electrical equipment.
		• Ensure that the power button is depressed fully.
		• Ensure that the correct input source is selected via the
		Input Source menu.

No Video/	No picture or no
Power LED on	brightness

•Increase brightness & contrast controls via OSD.

•Perform monitor self-test feature check.

•Check for bent or broken pins in the video cable connector.

•Run the built-in diagnostics.

•Ensure that the correct input source is selected via the

Input Source menu.

Troubleshooting 45