52
Troubleshooting
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:
www.dell.com/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:
www.dell.com/support/
monitors
.
Brightness Problems
Picture too dim or too
bright
•
Reset the monitor to
Factory
Settings
.
•
Auto Adjust via OSD.
•
Adjust brightness & contrast
controls via OSD.
Geometric Distortion
Screen not centered
correctly
•
Reset the monitor to
Factory
Settings
.
•
Auto Adjust via OSD.
•
Adjust brightness & contrast
controls via OSD.
NOTE
: When using ‘DVI-D’, the
positioning adjustments are not
available.
Horizontal/Vertical
Screen has one or
•
Reset the monitor to
Factory
Lines
more lines
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.
NOTE
: When using ‘DVI-D’,
the Pixel Clock and Phase
adjustments are not available.