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probleme sunet daewoo 21t5t


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sasiu cp-375,sursa strs5707,procesor sda5255-a035,jungla tda8374a,memorie 24c08problema este urmatoarea: tv nu a mai pornit,iam refaut lipituri reci,schimbat conzi pe bara de 123v,pe 15v,pe 5v.porneste corect,dar in schimb cand porneste nu e sunet,apas v+ nu face nimic,apas v- tv are sunet la maxim iar in dreptul cifrelor care ar trebuii sa fie 99,adica volum maxim,sunt cifre si litere(adic 9f,8f,7f,6f....................5a,4a,3a................apoi 99,98,97 si apoi scade volumul normal),nu stiu de la ce ar putea fii problema,daca e problema din service mode ,nu pot intra,am o telecomanda dac nu e cea de service.o schimbare a memoriei ar rezolva problema?

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Si eu m-am confruntat cu cazuri in care nu am avut telecomanda deci nu am avut cu ce sa intru in service mod. Drept urmare am cautat o schema cu acelasi circuit integrat (sau din datasheet) dar cu trimeri, am urmarit care dintre ei regleaza pozitia pe verticala si prin comparatie am ajustat din rezistente.

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