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SAMSUNG CK 20S20 BT nu porneste


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Salut d-lor ! Datele aparatului : SAMSUNG CK 20S20 BT, sasiu AA41(banuiesc); proc. SAA5531 PS/M4; mem. C41 DC; jungla TDA 8842; cadre TDA 8356; Stand-by cu KA 7630. Simptome: la pornirea din buton se aprinde LED-ul verde dar aparatul nu porneste; sursa corecta +B=125v si 12v; tens. de 5v si 3,3v corecte; manevre efectuate: schimbat KA 7630=degeaba; schimbat TDA8842=degeaba; am deblocat tens de 8v pt. jungla(am pompat tranzistorul care comanda KA7630) a intrat tensiune in jungla=degeaba. Nu am nici proc si nici mem. de schimb si nici mijloace de rescriere mem. O idee, ceva , un pufulet o maslina daca se poate ! O sa va fac pantofii pana la adanci batraneti ! Multumesc !

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Posibil date memorie alterate(in cel mai fericit caz) s-au procesor defect !!!s-au defect pe magistrala SDA si SCL !!PS. Nu mai incercati pornirea TV prin aplicarea tensiunii de 8V pt. ca nu porneste oscilatorul de linii din TDA pt ca este comandat pe SDA si SCL de procesor !!!!

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