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trasorv

trafo linii ars la goldstar sasiu pc91a

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buna ziua , am un galdstar cu sasiu pc91a cu trafo linii ars si rezistenta r425 arsa scrum si nu stiu ce valoare are rezistenta , ma poate ajuta cineva cu un raspuns ? multumesc

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   Probleme grele!Rezistenta aia parlita e pe ABL,dupa ce puneti trafo nou sa vedeti bucurie cu memoria MDA2062,poate cu TDA1941 defect la "ident". ..... si cate si mai cate... :rade:

Edited by Andrei Tabacaru

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     Prima zapacita e de obicei memoria..........

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Revin și spun că deși funcționează bine are un brum pe sunet cu sau fără semnal și nu îmi dau seama de unde este. Sugestii?

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la PC91 nu cred ca se pune problema de memorie.

Eu stiu ca este cu MDA2062 si se zapacesc optiunile(chestiunea cu CH,OP,V+ si SAA1250 cu buton service inte 15 si 23)

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Pai fara semnal ar trebui sa fie mut.Ceva nu-i in regula acolo si foarte probabil conzi aiurea multi.La vechimea lui nici nu e mirare.

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Am schimbat filtrajele de la sursă până la sunet dar nimic

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Vezi in zona sincro desi ar trebui delimitat de unde apare zgimotul final sau inainte de el.

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