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Robert22

Watson FA7040

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Sasiu 11AK19P5 , nu am sunet pe nici un canal , Ic final functioneaza , are ca proc SDA5555 , TDA 8844, MSP3400G, TDA 4472 , am rescris si memoria dar to nimic. Daca ma puteti ajuta cu vreun sfat ?

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Probabil este defect procesorul de sunet,MSP3400.Verificati daca este alimentat corect,SCL si SDA.

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multam ptr schema , am schimbat Ic MSP3400 dar tot nu am sunet :cry: posibil sa fie defecte amandoua ?

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am schimbat cristalul quartz dar tot nu am sunet :cry: ...Aveti vreo idee de unde as putea procura un MSP si care ar fi pretul acestuia ...pe la noi prin magazine nu au nici sa aduca nu pot icon_hang .

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renuntat la MSP si facut mono ,nu este acceptabil?

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m-am gandit si eu la varianta aceasta dar oscilatiile tensiuni SCL SDA sunt din TDA8844 are doua cristale quartz le-am schimbat si tot osclileaza schimb ic-ul si vad ce rezolv , semnalul audio din ic functioneaza dar incerc sa o rezolv cumva daca nu reusesc cum spuneat si dumneavoastra il fac mono... Multumesc deocamdata am sa revin mai tarziu :freaza:

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Daca doresti,pot sa-ti trimit contra cost,un modul perfect functional.Mai multe relatii pe PM.

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m-am inselat in privinta lui TDA8844 este bun in schimb am schimbat SDA5555 si nu mai am oscilatiile de tensiune pe SCL SDA acuma am in jur de 2,5v inainte oscila tensiunea intre 3,6 si 4,7v i-mi puteti spune cineva care din tensiunii este OK?

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