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Panasonic TX-P42GT50B


Guest mariusmotea
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Guest mariusmotea

Buna ziua,Am de reparat TV-ul din titlu care este total mort. Am atasat un circuit banal care nu reusesc sa inteleg cum fucntioneaza, se afla de doua ori la finalul sursei de stand-by, ambele sunt alimentate din aceeasi tensiune (15.8V masurat) si au iesirile conectate la pini de iesire diferiti. Ambele nu dau nici o tensiune mai departe (uneori scotea 10V, insa varia pana la 3V), se pare ca tranzistorul nu se inchide si nu inteleg care este problema. Din ce inteleg eu ambele sunt protectii de scurcircuit (pe placa scrie ca trebuie sa scoata 15v), insa piesele par a fi toate ok si nu inteleg de ce nu merge. Tranzistorul l-am testat doar masurand dioda interna. Orice sugestie este binevenita. MI-e frica sa suntez aceste circuite, intrucat este un tv care costa ~5000 lei.Multumesc.

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