Samsung PA43H4100AR - No Video

4.Troubleshooting
4.2.2.NoVideo
Symptom
•Audioisnormalbutnopictureisdisplayedonthescreen.
Majorcheckpoints
•TheoutputvoltageoftheMainSMPS.
•ThismayhappenwhentheLVDScableconnectingtheMainBoardandthePanelisdisconnected.
Diagnostics
ChecktheLEDoperationofLogicBoardwhichis
normallyoperating?(Normal:Blinkonceasecond)
Check/ReplacetheX/YMainorLogicBoard.
ChecktheFFCCableisitconnectedcorrectly?Check/ReplacetheFFCCable.
CheckAlloutputvoltagesonSMPS.Are
allvoltagesnormal?
ReplacetheSMPS.
ReplacetheMainBoard.
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