Dell S3222HN User Manual

Also see for S3222HN: Service manual User guide

54 │ TroubleshootingCommon problemsThe following table contains general information about common monitor problemsyou might encounter and the possible solutions:CommonSymptomsPossible SolutionsNo Video/PowerLED offEnsure that the video cable connecting the monitor and thecomputer is properly connected and secure.• Verify that the power outlet is functioning properly usingany other electrical equipment.• Ensure that the power button is pressed.• Ensure that the correct input source is selected via theInput Source menu.No Video/PowerLED on• Increase brightness and contrast controls using the OSD.• Perform monitor self-test feature check.• Check for bent or broken pins in the video cableconnector.• Run the built-in diagnostics.• Ensure that the correct input source is selected via theInput Source menu.Poor Focus • Eliminate video extension cables.• Reset the monitor to Factory Settings (Factory Reset).• Change the video resolution to the correct aspect ratio.Shaky/Jittery Video • Reset the monitor to Factory Settings (Factory Reset).• Check environmental factors.• Relocate the monitor and test in another room.Missing Pixels • Cycle power On-Off.• Pixel that is permanently Off is a natural defect that canoccur in LCD technology.• For more information on Dell Monitor Quality and PixelPolicy, see Dell Support site at:www.dell.com/pixelguidelines.