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How to solve samsung ultra slim pcb no eht fault.
SAMSUNG TV 21"ULTRA SLIM PCB
SMD IC TDA12135H/N3/3
EHT AA26-00319
VERTICAL IC LA78045
SOUND IC TDA7297SA
STR W6754F
STANDBY RELEASE BUT NO EHT
SOLUTION:
1.Power on/Check eht supply voltage------ok.
2.Check driver transformer input voltage------low.
3.Check driver supply source from power------ok.
4.Check driver supply source from eht-------ok.Supply diode I/P voltage ok but O/P voltage low.
5.Power off/Discus this problem.
6.Check this diode IN4007(driver supply from eht)----not proper reading.The diode IN4007 is defective.
7.Open this diode.
8.Set new diode IN4007.
9.Solder this diode.
10.Power on/Then------