Samsung PA43H4100AR - No Sound

4.Troubleshooting
4.2.3.NoSound
Symptom
•Videoisnormalbutthereisnosound.
Majorcheckpoints
•Whenthespeakerconnectorsaredisconnectedordamaged.
•WhenthesoundprocessingpartoftheMainBoardisnotfunctioning.
•Speakerdefect.
•SMPSnotsupplyingvoltagetothemainboard
Diagnostics
IsthecableconnectionbetweenMainboardand
thespeakerproperlyconnected?
Connectthecableproperlyorreplacethe
cable,ifnecessary.
IstheoutputvoltageofSMPSnormal?
(CN804pin#4:15VS)
ReplacetheSMPS.
4-7Copyright©1995-2013SAMSUNG.Allrightsreserved.