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ELFORUM - Forumul electronistilor

Tv Goldstar CB 20A 80 ( CP 31A)


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salutare ! dupa ce repar sursa acestui tv cu sasiu cp-31A (am inlocuit si tda4605 cu tda4605-2 ca in schema), constat ca dupa pornire in cca 3 secunde intra in stenby , dupa o noua incercare se repeta fenomenul, in acele 3 secunde observ ca filamentul TK se aprinde, semn ca etajul final de linii functioneaza, .....dupa 5 incercari se arde buz 90 af , am cercetat putin povestea tv -ului, umblase cineva inaintea mea in el, si a inlocuit sig de 2 ori, prima data cu una originala , dar a 2 oara cu o sirma , drept care nu sa mai ars, in acest caz buz 90 sau ce o fi fost sa facut scrum, si a cedar rez de 2, 2 ohmi ( in schema am gasit buz 90 a, si tda4605-2)

E posibil sa fi fost afectat alt ceva din sursa ? rog cineva in masura sa imi dea un mic ajutor! multumesc!

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