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ELFORUM - Forumul electronistilor

TDA 8842

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Am inlocuit un tda8842 intr-un Grundig in care nu mergea sincroprocesorul si acum TV-ul functioneaza, dar nu mai am video. Am inlocuit din nou TDA 8842 si aceiasi manifestare. Iesirile RGB sunt 0,2V. Am cautat de m-am plictisit si pe traseul de la pinul 22 si nu am gasit nimic defect. Ce ar putea avea si cum as putea verifica daca blocheaza ceva etajul video.M-am gandit ca poate memoria trebuie rescrisa, dar am bagat una noua(fara sa o rescriu) sa vad ce se intampla si aceiasi manifestare. Are cineva ceva idei?

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