Рет қаралды 5,950
Onida tv no picture no sound.
ONIDA TV 21''NORMAL PCB.
MAIN IC M52771ASP.
SYSTEM IC M37221M6-292SP.
FBT 140/142/194.
VERTICAL IC LA7840.
SOUND IC 2615.
STR S6707.
1.Power on/check memory ic supply voltage------ok.
2.Check memory ic SCL voltage-----ok.
3.Check memory ic SDA voltage------ok.
4.Check system ic SDA(pin-31) voltage---------ok.
5.Check system ic SCL(pin-33) voltage---------ok.
6.Check bus line SDA pin-32 voltage-----low.
7.Check bus line SCL pin-43 voltage-------ok.
8.Then-----------