augustin Posted June 18, 2014 Share Posted June 18, 2014 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? Link to comment
leoncris Posted June 18, 2014 Share Posted June 18, 2014 (edited) Posibil FBT - 40348A-09 (HR8553). Verifica fisa de catalog cu ... "terenul" http://en.efiter.com/products/flyback/scheme/8553 Edited June 18, 2014 by leoncris Link to comment
augustin Posted June 18, 2014 Author Share Posted June 18, 2014 Am gasit schema aceasta si configuratia pinilor la traful meu este exact ca in schema http://obrazki.elektroda.net/57_1169060372.jpg Link to comment
augustin Posted June 18, 2014 Author Share Posted June 18, 2014 asa arata sasiu Da .. acesta este sasiul.. Multumesc !! Link to comment
Florinel TV Posted June 18, 2014 Share Posted June 18, 2014 uite si o schema poate ajuta final linii este bun schimbal poate el face problema Profilo Telra chassis PT92 Junior.pdf Link to comment
tepeleacatalin Posted June 18, 2014 Share Posted June 18, 2014 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 Link to comment
adam stefan Posted June 18, 2014 Share Posted June 18, 2014 nu cred ca atunci cind e defect traf tensiunea se duce in 0 incearca cu alt bu Link to comment
Guest rumburac Posted June 19, 2014 Share Posted June 19, 2014 (edited) 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 June 19, 2014 by rumburac Link to comment
leoncris Posted June 19, 2014 Share Posted June 19, 2014 Pe C_ul mare ce tensiune ai ? Link to comment
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