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Maricel

samsung CZ-21H42T

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Va salut! Am o problema cu acest tv samsung sasiu KS1A, mai bine zis cu sonorul tv-ul merge foarte bine numai ca dupa un interval de 30 min la 1 ora sunetul se aude distorsionat si apoi dispare. Am verificat tensiunile sunt ok, am refacut eventualele lipituri ,,reci,, dar nimic. As dori o idee, un sfat. VAa multumesc! (amplif. este TDA 8944J, procesor TDA9351PS/N2/3I1003)

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Va salut! Revin cu noi amanunte, am schimbat condensatorii, dar degeaba dupa mai multe verificari am gasit comanda mute din procesor pinul 4, cu pinul 4 izolat aveam o rezistenta fata de masa de 53 ohmi ce mi se parea suspect, am pus baza tranzistorului Q903(care face mute) la masa si sunetul merge ok,(cred ca procesor defect pin4) dar mai am o problema: cand schimb programele in difuzoare se aude un ,,pocnet" la fel se intimpla si la oprirea/pornirea tv-ului care este suparator, ce modificare pot sa-i fac sa nu mai am aceste ,,pocnete". Va multumesc!

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