52 Operating the Monitor Operating the Monitor 53
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: 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 Horizontal Position &
Vertical Position controls via OSD.
NOTE: When using DVI-D input,
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.
• Run the built-in diagnostics.
NOTE: When using DVI-D input, the
Pixel Clock and Phase adjustments are
not available.
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 the safe
mode.
Safety Related Visible signs • Do not perform any
Issues
of smoke or
sparks
troubleshooting steps.
• Contact Dell immediately.
