Dell P2423D - Page 67

Troubleshooting │ 67
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/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 Pixel Policy, see Dell Support
site at:
www.dell.com/pixelguidelines.
Brightness
Problems
Picture too dim or
too bright
• Reset the monitor to Factory Settings
(Factory Reset).
• Adjust brightness & contrast controls via
OSD.
Geometric
Distortion
Screen not
centered correctly
• Reset the monitor to Factory Settings
(Factory Reset).
• Adjust horizontal & vertical controls via
OSD.
Horizontal/
Vertical Lines
Screen has one or
more lines
• Reset the monitor to Factory Settings
(Factory Reset).
• 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.