Users Guide

72  │  Tro ub les h ooti ng
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:
http://
www.dell.com/support/monitors.
Brightness
Problems
Picture too dim or
too bright
• Reset the monitor to factory settings.
• Perform Auto Adjust via OSD.
• Adjust brightness & contrast controls
via OSD.
Geometric
Distortion
Screen not
centered correctly
• Reset the monitor to factory settings.
• Perform Auto Adjust via OSD.
• Adjust horizontal & vertical controls
via OSD.
• When using HDMI/DisplayPort 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 the 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.
• When using HDMI/DisplayPort input,
the Pixel Clock and Phase
adjustments are not available.