Samsung PS51D6900DS - Troubleshooting; Checkpoints by Error Mode

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4.Troubleshooting

4.1.CheckpointsbyErrorMode

4.1.1.FirstChecklistforTroubleshooting

1)Checkthevariouscableconnectionsrst.

•Checktoseeifthereisaburntordamagedcable.

•Checktoseeifthereisadisconnectedorloosecableconnection.

•Checktoseeifthecablesareconnectedaccordingtotheconnectiondiagram.

2)CheckthepowerinputtotheMainBoard.

3)HowtodistinguishiftheproblemiscausedbyMainboardorLogicBoard.

•NoVideo:IftheproblemisNoVideobutLogicBoardisonandIndicationLEDisblinkingrepeatedlyand

fasterthannormalbooting,replacetheT-Conboard.

•DistortedPicture:Checktheinnerpatterns.

InnerpatternPictureProblem

OKNGMainboard

NGNGMainorLVDScableorLogicBoardorPanel.

•Howtocheckinnerpattern?

a.EnteringFactorymode.

b.MovetoSVCmenu.

c.MovetoTestPattern.

d.Checkinnerpatterns.

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