60
| Troubleshooting
Common
symptoms
What you
experience
Possible solutions
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,
https://www.dell.com/pixelguidelines
.
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 PixelPolicy, see,
https://www.dell.com/pixelguidelines
.
Brightness
problems
Picture too dim
or too bright
• Reset the monitor to factory settings.
• Adjust brightness and contrast controls through
OSD.
Geometric
Distortion
Screen not
centered
correctly
• Reset the monitor to factory settings.
•
Auto adjust
via OSD.
• Adjust horizontal & vertical controls via OSD.
Horizontal/
Vertical Lines
Screen has one
or more lines
• Reset the monitor to factory settings.
• Perform
Auto adjust
via OSD.
• Adjust
Phase
and
Pixel Clock
controls via OSD.
• Perform monitor self-test feature check and
determine if these lines are also in self-test
mode.
• Check for bent or broken pins in the video cable
connector.
• Run the built-in diagnostics.
Synchronization
Problems
Screen is
scrambled or
appears torn
• Reset the monitor to factory settings.
• Perform
Auto adjust
via OSD.
• Adjust
Phase
and
Pixel Clock
controls via OSD.
• Perform monitor self-test feature check to
determine if the scrambled screen appears in
self-test mode.
• Check for bent or broken pins in the video cable
connector.
• Restart the computer in safe mode.
