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lg_ce29q12ip_ch_mc993a


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Buna ziua, la acest tip de tv, mode sasiu mc-993a, am gasit c448=10uf/250 umflat, am schimbat c, am verificat tensiunile si pe o sarcina, releul comuta dar tv nu are imagine, am semnal de la procesor dar nu am fit. Daca a intilnit cineva acest defect rog un sfat ce sa verific? Multumesc anticipat

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Nu este cu BU808 este cu trafo dreiver si tranzistor ''normal'',nu darlington.Daca DIRECT pe COLECTOR la final linii,puteti masura 135V cu multimetrul (analogic sau digital) si nu se da peste cap multimetrul.....nu prea cred ca functioneaza finalul linii!!!! Filament este?!?! Nu cred!!Tranzistorul din corectie se incalzeste puternic in timp scurt?

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Daca e defect acel tranzistor de pe corectie,trebuie cautate cauzele ce au determinat defectarea lui. Simpla inlocuire nu cred ca v-a rezolva problema. :jytuiyuDe regula ,ar fi trebuit ca etajul linii sa functioneze ,chiar si cu acel tranzistor defect,doar ca ati fi avut defecte de geometrie ale imaginii...

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