Simple lang approach mo sa pag troubleshoot sir at may sistema. May natutunan na naman akong magandang paraan ng pag diagnose. Salamat sa video mo sir.. :)
Ty bro. Malaking tulong yan . Bro. LG tv ko sa primary nagpaflactuate after ng dalawang 56k na resistor sa main filter cap. Na check ko na main cap. Ok nman flactute prin ano kya suggest mo? Salamat.
Hung mo muna b+ connected to flyback pin, saka mo ulit sukatan kung fluctuation parin, kung ganon parin, nasa primary power ang problem, including opto coupler, kung nag normal naman after mo ma i hung, focus ka sa fbt and outputs nito, like 180v heater etc.
Sir may gawa din ako kanina philips 29 inches naninibak ng h,out power on palang sibak na naman h,out tapos b+ nya 127vdc to 130vdc normal po ba yon sa 29 inches ung b+ nya salamat sana mapansin mo sir.. godbless..
Possible may loose contact, poor solder joint, check the ff. Ps section pri and sec, ang best way to locate the problem is applying voltage measurement. See my previous video tutorials regarding voltage measurements.
