Users Guide

62  Troubleshooting
Missing Pixels LCD screen has spots •Cycle power on-o.
•Pixel that is permanently o 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.
Stuck-on Pixels
LCD screen has bright
spots
•Cycle power on-o.
•Pixel that is permanently o 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.
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 / DP’,
the positioning adjustments are
not available.
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.
NOTE: When using ‘DVI-D /
DP’, the Pixel Clock and Phase
adjustments are not available.