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Panasonic TH-37PV45EH


doru3160
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Multumesc, sper sa scap doar cu schimbarea electroliticilor. Experienta mea in depanarea surselor in comutatie e destul de limitata, de asta si fara schema era mult mai greu de vazut ce si cum. Incerc, e a unui prieten care m-a rugat sa vad daca pot sa rezolv ceva. 

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O sa iau placa la serviciu si incerc sa vad daca livreaza toate tensiunile, acum ca tot stiu ce tensiuni trebuie sa gasesc si unde. Masurarea capacitatilor era singura operatiune care puteam s-o fac fara nici un indiciu asupra schemei, si pt ca are o varsta, ma gandeam ca se mai usuca, mai ales ca unii sunt montati fix sub radiator. Umflat nu e nici unul, deci posibil sa ai dreptate.

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Cand se cupleaza de la intrerupatorul de retea, se aprinde led-ul pe panou, se aud doua relee ca clampane cate o data fiecare, unul dupa altul, nu simultan (cele doua negre de deasupra sigurantelor in dreapta jos in poza), ledul clipeste de 2 sau 3 ori, nu am observat exact, si apoi ciclul se repeta. Chiar fara sarcina tot asa face, de asta m-am gandit ca defectul e pe alimentare. Nu am experienta in depanare plasme si in general in tv-uri, dar cum miza nu e mare, am zis sa incerc. 

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