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defect tv zander lipsa sunet


bubusmecherul

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Am o problema cu sunetul la acest tv,zander model ft2101[nu are sunet],am schimbat cei doi tranzistori de langa an17821a dar tot degeaba,am tensiunea de 12v e pinul 1 al intergratului de sunet,nu am tensiunea de 5v pe pinul 5,am scos unul din cei doii tranzistor afara si a pornit sonorul la maxim,dar nu regleaza,mai incet,mai tare.am intrerupt pinul 5 al intergratului de sunet,si lam alimentat cu 5v din alta parte,si am sunet,ce se intampla,ma ajuta careva.

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