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b17liviu

philips 20pt 1547 01

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Buna ziua,La acestTV dispare imaginea 1-2 s si apoi apare din nou ,are sunet ,tensiunile in sursa par ok ,am observat ca acest fenomen apare mai ales cand creste nivelul de alb ,daca micsorez contrastul si luminozitatea fenomenul tinde sa nu mai apara.Rog putin ajutor ,sunt incepator.

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Sasiul e PT 92 p (TE 1.1e aa ). Daca micsorez contrastul si luminozitatea sau imaginea este mai intunecata tv merge foarte bine .Tensiunea de 185 v scade cam cu 10 v odata cu intunecarea ecranului apoi cand apare imaginea isi revine ,a mai intalnit cineva acest tip de defect ?

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Vreau sa mentionez ca imaginea este perfecta,imaginea se intuneca atunci cand luminozitatea e prea mare,se intuneca pt o secunda apoi apare din nou ,banuiesc ca imi creste si curentul pe bara de 185 v ,condensatorul de filtraj l-am schimbat o sa inlocuiesc si dioda (daca imi puteti da o echivalenta pt BYD33J ).Multumesc de raspuns ori ce sugestie e bine venita.

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