Re: Can you dignose from the photo ? . Toshiba 65S2650EV
Yes, a tv from hell, sadly.. i thought we there were... now, i was expecting more on pin 12 ic3, i don't know what there is between pin2 q10 and pin12 ic3, it seems pretty straight, only a 10 ohm smd resistor if i can see.. also another thing, if on opto UF1 cold side there is 1,2v then hot side must conduct and then q10 pin3 (i guess base) tied to gnd, test the hot side pins of UF1 it must be less than 1v, maybe q10 has an internal pullup resistor to the collector.. test the pin16 of ic3, must be a little lower than pin12.. have you tested outputs with PSU alone?
Yes, a tv from hell, sadly.. i thought we there were... now, i was expecting more on pin 12 ic3, i don't know what there is between pin2 q10 and pin12 ic3, it seems pretty straight, only a 10 ohm smd resistor if i can see.. also another thing, if on opto UF1 cold side there is 1,2v then hot side must conduct and then q10 pin3 (i guess base) tied to gnd, test the hot side pins of UF1 it must be less than 1v, maybe q10 has an internal pullup resistor to the collector.. test the pin16 of ic3, must be a little lower than pin12.. have you tested outputs with PSU alone?
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