Dell S2340T Multi Touch Monitor - Manual (Page 42)

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 activate the In-Store Demo:
1. Turn on the monitor.
2. Unplug the video cable(s) from the back of the monitor.
3. Press and hold the Button 2 along with the Button 4 on the front panel for 5 seconds. Flashing labels appear floating randomly on screen.
4. To exit In-Store Demo, press and hold the Button 2 along with the Button 4 on the front panel for 5 seconds.
NOTE: If a video cable is inserted with signal while in In-Store Demo, the display becomes to Demo mode .
NOTE: In-Store Demo is not a diagnostic tool to test for abnormalities. Instead, use the built-in diagnostics.
Common Problems
The following table contains general information about common monitor problems you might encounter and the possible solutions.
Common Symptoms What You Experience Possible Solutions
No Video/Power LED off No picture Ensure that the video cable connecting the monitor and the 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 Select button.
No Video/Power LED on No picture or no 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 Select button.
Poor Focus Picture is fuzzy, blurry, or
ghosting
Eliminate video extension cables.
Reset the monitor to Factory Settings.
Change the video resolution to the correct aspect ratio (16:9).
Shaky/Jittery Video Wavy picture or fine movement Reset the monitor to Factory Settings.
Check environmental factors.
Relocate the monitor and test in another room.
Missing Pixels LCD screen has spots Cycle power on-off.
Pixel that is permanently off is a natural defect that can occur in LCD technology.
For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:
support.dell.com.
Stuck-on Pixels LCD screen has bright spots Cycle power on-off.
Pixel that is permanently off is a natural defect that can occur in LCD technology.
For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:
support.dell.com.