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tv grundig cuc6300 defect sursa


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tvul a functionat ultima oara la pornire aparea imaginea defocalizata dupa care se regla in cateva secunde. acum se vede un trazez pe mijlocul ecranului fara stralucire si am masurat tensiunile si sunt scazute la 88v in loc de 115v. am verificat condesatorii cu esrmetru. sa fie de la tda4605 sau un scurt ceva pe linii. tranzistorul linii e bun l-am dat afara si am pus becul la fel becul se aprinde tensiunea e tot 88v.

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Teoretic TDA4605 nu are cum fi defect daca sursa totusi merge.Ceva pe bucla de regl;aj poate defect.Sursa cu TDA4605 este dupa mine cea mai usor reparabila sursa de TV care s-a facut vreodata.Verifica piesele in ea.Cand pe bec vei avea U1 cat trebuie mergi mai departe.

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