Common Problems - Dell UltraSharp U3415W User Manual

Common Problems

The following table contains general information about common monitor problems you
might encounter and the possible solutions:
Common
Symptoms
No Video/Power No picture
LED off
No Video/Power No picture or no
LED on brightness
Poor Focus Picture is fuzzy,
blurry, or
ghosting
Shaky/Jittery Wavy picture or
Video fine movement
Missing Pixels LCD screen has
spots
Stuck-on Pixels LCD screen has
bright spots
Brightness Picture too dim
Problems or too bright
Geometric Screen not
Distortion centered
correctly
62
| Troubleshooting
What You
Experience
• 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 in the
Source
• 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
Source
• 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.
Possible Solutions
menu.
menu.
Input
Input