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ELFORUM - Forumul electronistilor

Defect BO TV SUNNY


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Salut baieti.Am atasat un detaliu al schemei televizorului ,din zona cu problema.Piesele incercuite din zona traf. linii (C 410 =100n si R 415=1k) conectate la pinul 8 al transformatorului de linii, erau arse.Dupa cum se vede din schema , duc spre ABL.Dupa inlocuire , la pornirea tv-ului, se ard instantaneu. Sursa scoate tensiunile corect.Am verificat tot ce se putea verifica la rece si totul este OK.Eu banuiesc ca una sau mai multe diode din redresarea FIT , ar putea fi strapunse.As dori confirmarea sau infirmarea acestei supozitii, sau ceva idei. Televizorul este echipat cu procesor TDA 12072H, cadre STV 9302,sursa TDA 16846 Va multumesc

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