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Common problems
The following table contains general information about common monitor problems
you might encounter and the possible solutions.
WARNING: 1. The monitor LCD panel duty cycle is designed for 12
hours a day, 7 days a week.
2. Usage higher than the designed duty cycle may result in premature
decrease in panel backlight luminance, which may not be covered
under warranty.
Common symptoms Possible solutions
No video/Power LED
off
No video/Power LED on ∞ Increase brightness and contrast controls using the OSD.
Poor focus
Shaky/Jittery video
Missing pixels
∞ Ensure that the video cable connecting the monitor and the
computer is properly connected and secure.
∞ Verify that the power outlet is functioning properly using any
other electrical equipment.
∞ Ensure that the power button is pressed.
∞ Ensure that the correct input source is selected via the
Source
menu.
∞ Perform monitor self-test feature check.
∞ Check for bent or broken pins in the video cable connector.
∞ Run the built-in diagnostics.
∞ Ensure that the correct input source is selected via the
Source
menu.
∞ Eliminate video extension cables.
∞ Reset the monitor to Factory Settings (Factory Reset).
∞ Change the video resolution to the correct aspect ratio.
∞ Reset the monitor to factory settings (Factory Reset).
∞ Check environmental factors.
∞ Relocate the monitor and test in another room.
∞ 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/support/monitors.
Troubleshooting
Input
Input
55
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