Dell U2718Q UltraSharp Users Guide - Page 53

Common Problems, Common, Symptoms, What You, Experience, Possible Solutions

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Common Problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common Symptoms What You Experience No Video/Power No picture LED off No Video/Power No picture or no LED on brightness Poor Focus Shaky/Jittery Video Picture is fuzzy, blurry, or ghosting Wavy picture or fine movement Missing Pixels LCD screen has spots Stuck-on Pixels LCD screen has bright spots Brightness Problems Geometric Distortion Picture too dim or too bright Screen not centered correctly Possible Solutions • 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 pressed fully. • Ensure that the correct input source is selected in the Input Source menu. • 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 in the Input Source menu. • Eliminate video extension cables. • Reset the monitor to factory settings. • Change the video resolution to the correct aspect ratio. • Reset the monitor to factory settings. • Check environmental factors. • Relocate the monitor and test in another room. • 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: http://www.dell.com/ support/monitors. • 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: http://www.dell.com/ support/monitors. • Reset the monitor to factory settings. • Adjust brightness & contrast controls via OSD. • Reset the monitor to factory settings. • Adjust horizontal & vertical controls via OSD. Troubleshooting | 53

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Troubleshooting
|
53
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 pressed fully.
•
Ensure that the correct input source is selected in the
Input
Source
menu.
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 in the
Input
Source
menu.
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.
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/monitors
.
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/monitors
.
Brightness
Problems
Picture too dim
or too bright
•
Reset the monitor to factory settings.
•
Adjust brightness & contrast controls via OSD.
Geometric
Distortion
Screen not
centered
correctly
•
Reset the monitor to factory settings.
•
Adjust horizontal & vertical controls via OSD.