Common Problems - Dell D7523QT User Manual

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
50 Troubleshooting
|
· 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.
· Check for bent or broken pins in the video cable connector.
· 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.
Input
Input