Samsung PS43F4100AR - 4.2. Checkpoints by Error Mode

4.Troubleshooting
4.2.CheckpointsbyErrorMode
■NoPower
Symptom
•TheLEDsonthefrontpaneldonotworkwhenconnectingthepowercord.
•TheSMPSrelaydoesnotworkwhenconnectingthepowercord.
•Theunitappearstobedead.
MajorChecklist
TheSMPSrelayortheLEDsonthefrontpaneldoesnotworkwhenconnectingthepowercordif
thecablesareimproperlyconnectedortheMainBoardorSMPSisnotfunctioning.Inthiscase,
checkthefollowing:
•Checktheinternalcableconnectionstatusinsidetheunit.
•Checkthefusesofeachpart.
•ChecktheoutputvoltagesoftheSMPS.
•ReplacetheMainBoard.
Diagnostics
CN4007Fuse
CN201_CO
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