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ELFORUM - Forumul electronistilor

11ak30


paun nelu

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buna seara!am primit acest tv cu sursa defrisata , am complectato[nu a mai fost in sursa nimic decat diodele din punte] cu piesele lipsa am pornit sursa si acum are un tic-tic continuu,B=15V, am urmat tot ce se spune despre acest defect in dep.29 ,Am schimbat preventiv tl-u,tiristorul [mrc22-6] ..ce ar putea fi ce mi-a scapat la masuratori?

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Posibil porcariile de condensatori de pe iesire de 47uf la 160v chiar daca arata bine (se vede pe pini scurgere).Trebuie dat afara mai ales cel de langa trafo de alimentare .Totodata verifica rezistenta de 99k de vine in tl (asta e un sfat primit de la cineva)

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