Samsung PS43F4100AR - 4. Troubleshooting; 4.1. First Checklist for Troubleshooting

4.Troubleshooting
4.Troubleshooting
4.1.FirstChecklistforTroubleshooting
1)Checkthevariouscableconnectionsrst.
•Checktoseeifthereisaburntordamagedcable.
•Checktoseeifthereisadisconnectedorloosecableconnection.
•Checktoseeifthecablesareconnectedaccordingtotheconnectiondiagram.
2)CheckthepowerinputtotheMainBoard.
3)HowtodistinguishiftheproblemiscausedbyMainboardorLogicBoard.
•NoVideo:IftheproblemisNoVideobutLogicBoardisonandIndicationLEDisblinkingrepeatedlyand
fasterthannormalbooting,replacetheLogicboard.
•DistortedPicture:Checktheinnerpatterns.
InnerpatternPictureProblem
OKNGMainBoard
NGNGMain/LogicBoardorPanel.
•HowtocheckLogictestpattern?
a.EnteringFactorymode
b.MovetoSVCmenu
c.MovetoTestPattern
d.Checktestpatterns.
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