Dell P2225H - Page 90

90  │  Troub les ho ot in g
Shaky/jittery
video
Wavy picture
or fine
movement
• Perform Auto Adjust through OSD.
• Adjust the Phase and Pixel Clock controls
through 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
using the OSD.
Geometric
distortion
Screen not
centered
correctly
• Reset the monitor to factory settings.
• Perform Auto Adjust through OSD.
• Adjust horizontal and vertical controls
through OSD.
• When using HDMI/DisplayPort input, the
positioning adjustments are not available.