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Genius 5.1 Probleme motoras volum


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Salutare tuturor,

Nu v-am mai deranjat demult cu intrebari, asa ca astazi va solicit o chestiune ciudata. Un sistem mai vechi, Genius 5.1 nu raspunde la comanda de volum din telecomanda si nici nu-si regleaza la pornire volumul automat. Motorasul care actioneaza potentiometrul , functioneaza ok, l-am probat separat. Problema pare a fi integratul cu 28 de pini, NSR2714. traseele motorasului trec prin niste tranzistori C1815, ca mai apoi sa mearga catre NSR2714. La actionare manuala, volumul merge ok. Problema pare a fi la comanda motoralsului respectiv. Vreo sugestie ceva? Am dedus bine cu privire la NSR? El sa fie problema?

Va multumesc in avans. Pozele in link-urile de mai jos




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