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Tv NAIKO N-2850W Sasiu PT92


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 Sanatate !! Cu sursa pe bec tensiunile sunt normale si stabile ... Daca cuplez tranzistorul de linii , tensiunile in secundar scad la 0v , iar B+ oscileaza intre 0 si 5V , in acest timp sursa scoate un sunet sacadat ... Am schimbat electroliticii din secundar si din recupetate !! Eu banuiesc trafo linii defect .. dar pe traf nu scrie nimik ..

Pe placa scrie PT92 , iar ce cooper : PT92-28''...

Sasiul este echipat cu urmatoarele componente:

sursa: TDA16846.....Cadre: TDA8351....Procesor:

TDA9353PS/N2/2I1066

... Stiti cumva ce traf  este echivalent?

 

   
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intrebare...ai verificat tranzistorul final si condensatorul de intoarcere.....stiu..toata lumea se duce direct la traf...dar am gasit cazuri in care traful era bun iar cond+ tz final strapunse

dupa inlocuire tv functioneaza normal si in ziua de azi....sa o luam deci pas cu pas

bafta si spor

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Guest rumburac

Buna ziua!

daca ma puteti ajuta cu o sursa care nu porneste, nu mai stiu ce sa verific, am incercat sa o pornesc pe bec 25W, da sa porneasca si tot incearca la interval de aporximativ o secunda, becul nu se aprine , tensiunea pe bec este foarte mica cca 5V multumesc!

Tv Worten pt92.pdf

Edited by rumburac
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