Dell P2423 - Page 67

Troub leshooting  │  67
Shaky/jittery
video
Wavy picture or
fine movement
• Perform Auto Adjust via OSD.
• Adjust the Phase and Pixel Clock
controls via OSD.
• Reset the monitor to factory settings.
• Check environmental factors.
• Relocate the monitor and test in another
room.
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.
• Adjust brightness and contrast controls
via OSD.
Geometric
distortion
Screen not
centered
correctly
• Reset the monitor to factory settings.
• Perform Auto Adjust via OSD.
• Adjust horizontal and vertical controls via
OSD.
• When using DVI-D/HDMI/DisplayPort
input, the positioning adjustments are not
available.