Troubleshooting 39

Common Problems

The following table contains information about resolving common monitor
problems.
Common
Symptoms
What You
Experience Possible Solutions
No Video
(Power light off) No picture
•Make sure the display cable connecting
the monitor and the computer is properly
connected and secure.
•Make sure the power outlet is functioning
properly using any other electrical equipment.
•Make sure the power button is not pressed-in.
•Make sure the correct input source is selected
using the Input Source Select button.
•Check the Power Button LED option under
Energy Settings in OSD Menu.
No Video
(Power light on)
No picture or
no brightness
•Increase brightness and contrast usingOSD.
•Perform monitor self-test.
•Check for bent or broken pins on the
displaycable and the ports.
•Run the built-in diagnostics.
•Make sure the correct input source is selected
using the Input Source Select button.
Poor Focus
Picture is
fuzzy, blurry, or
ghosting
•Perform Auto Adjust using OSD.
•Adjust the Phase and Pixel Clock using OSD.
•Eliminate video extension cables.
•Reset the monitor to factory settings.
•Change the video resolution to the correct
aspect ratio (16:9).
Shaky/Jittery
Video
Wavy picture or
fine movement
•Perform Auto Adjust using OSD.
•Adjust the Phase and Pixel Clock using OSD.
•Reset the monitor to factory settings.
•Check environmental factors.
•Relocate the monitor and test in another
room.
Missing Pixels
Stuck-on Pixels
LCD screen has
spots
•Turn o the monitor, disconnect and
reconnect the power cable, and turn on the
monitor.
•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 dell.
com/support/monitors.