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Teletech RM36

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Problema la acest tv:lipsa imagine(ecran alb-laptos),tensiunea pe iesirea(pin 15) TA 7680=0 v(in loc de cca.4 v),tensiune pe catozi=cca 75 v.Vreo idee?IC croma=TA7698,sursa clasica,cu tranzistori...

Daca n-ai reparat inca tv-ul , incerc sa-ti dau cateva idei: Sa fie 12V nu 10 sau 9 pe tensiunea de alimentare a sel. , cc. , croma si oriunde s-ar mai folosi in tv.Tensiunea de alimentare a finalilor video sa fie filtrata si peste 150-160V , de fapt toate tensiunile sa fie filtrate.Daca toate acestea sunt in regula verifica piesele din jurul celor 2 integrate si apoi integratele.Astea sunt ideiile unui incepator, poate specialistii avansati de aici iti pot da detalii exacte.
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