#Samsungtv#No_eht.How to repair Samsung tv no eht problem.

SAMSUNG TV21"NORMAL PCB CHIP IC TDA12135H/N3/3 EHT AA26-00319A VERTICAL IC LA78045 SOUND IC TDA7297SA STR W6754F NO EHT 1.Power on/Check EHT supply voltage---ok. 2.Check H DRIVER voltage-----ok. 3.Check vertical IC supply voltage----nil. 4.Check 3.3V supply voltage---ok. 5.Check memory IC voltage---nil. 6.Power off/Check memory IC supply pin and ground ohms----low ohms. 7.Open memory IC supply pin. 8.Again check ohms---same result. 9.Measure sensor supply pin and ground ohms----low ohms. 10.open sensor. 11.Again check the points----high ohms 12.Sensor defective. 13.Check ohms memory IC supply pin---ok(high). 14.Solder this point. 15.Again check this point---ok(high ohms). 16.Power on/Check memory IC supply voltage---ok. 17.Check vertical ic supply voltage---ok. 18.Then------