Dell E2222H Users Guide - Page 46
Common problems, Troubleshooting, Common symptoms, Possible solutions
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Common problems The following table provides general information about common monitor problems you might encounter and the possible solutions: Common symptoms Possible solutions No video/Power LED off No video/Power LED on Poor focus Shaky/Jittery video Missing pixels Stuck-on pixels Brightness problems Geometric distortion Horizontal/Vertical lines • 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 Input Source menu. • Increase brightness and contrast controls using the OSD. • 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 Input 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 about Dell Monitor Quality and Pixel Policy, see Dell Support site at: www.dell.com/pixelguidelines. • Cycle power On-off. • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information about Dell Monitor Quality and Pixel Policy, see Dell Support site at: www.dell.com/pixelguidelines. • Reset the monitor to Factory Settings (Factory Reset). • Adjust brightness and contrast controls using OSD. • Reset the monitor to Factory Settings (Factory Reset). • Adjust horizontal and vertical using OSD. • Reset the monitor to Factory Settings (Factory Reset). • Perform monitor self-test feature check and determine if these lines are also in self-test mode. • Check for bent or broken pins in the video cable connector. • Run the built-in diagnostics. 46 │ Troubleshooting