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tv samsung sasiu p58sc(n) u1=128 dupa cca 5s scade la ..


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dupa pornire u1 cca 125-128v ,dupa cca 5s scade la 10v si apoi 0.u de 12v la pornire max 9v ,led-ul se aprinde normal si chiar daca nu dau comanda de pornire se intampla acelasi lucru.am scimbat toate filtrajele din sec. la proba cu becul ,acesta nu se aprinde.la modificarea r801 spre + se aud imp sincro .am verificat u2- b2 32,5v

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Daca este sursa cu TDA4601 , schimbati condensatorii electrolitici din sursa , in special in baza BU - C813 si pe alimentare CI - C817 , dar este recomandat pe toti si daca nu a fost facut pina acum si cei din BV si in jurul trafo linii

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