iod2 Posted November 20, 2013 Share Posted November 20, 2013 sursa eplodata. sa rezolvat. dar. in stby citaie destul de tare ca si cum ar intra in protectie. in on traful scoate un scranjen aiurea.... Link to comment
leoncris Posted November 20, 2013 Share Posted November 20, 2013 Ia baga bec si vezi ce "sunete" mai scoate . Link to comment
iod2 Posted November 20, 2013 Author Share Posted November 20, 2013 la fel face si pe bec.....si in on imaginea onduleaza pe margini. Link to comment
zvasile Posted November 20, 2013 Share Posted November 20, 2013 in secundar sunt 3 tz.care trebuie verificati (Q805,806,807) Link to comment
catalin004 Posted November 20, 2013 Share Posted November 20, 2013 Sper ca in sursa ai schimbat si condensatorul de pe alimentare....sau l-ai cerificat... Link to comment
iod2 Posted November 20, 2013 Author Share Posted November 20, 2013 Sper ca in sursa ai schimbat si condensatorul de pe alimentare....sau l-ai cerificat...lam schimbat..................... Link to comment
catalin004 Posted November 20, 2013 Share Posted November 20, 2013 Daca face si pe bec inseamna ca chopperul scoate acel sunet....tensiunile sunt corecte?dupa chopper Link to comment
iod2 Posted November 20, 2013 Author Share Posted November 20, 2013 in secundar sunt 3 tz.care trebuie verificati (Q805,806,807)tranzistoarele verificate cu testerul. sunt bune Link to comment
iod2 Posted November 20, 2013 Author Share Posted November 20, 2013 Daca face si pe bec inseamna ca chopperul scoate acel sunet....tensiunile sunt corecte?dupa choppervariaza usor........ Link to comment
iuliantv Posted November 20, 2013 Share Posted November 20, 2013 Daca face si pe bec inseamna ca chopperul scoate acel sunet....tensiunile sunt corecte?dupa choppervariaza usor........100-220mf 400v schimbat? optocuplor(daca are) Link to comment
iod2 Posted November 20, 2013 Author Share Posted November 20, 2013 schimbat condul mare si optocuplorul............. Link to comment
dan cod Posted November 20, 2013 Share Posted November 20, 2013 Poate ceva condi mic sau rezistenta cu valoare modificata sau chiar dioda si nu in ulktimul rand CIul. Link to comment
catalin004 Posted November 20, 2013 Share Posted November 20, 2013 Eu cred ca tot in sursa ai problema..... Link to comment
Guest aurelt60 Posted January 22, 2014 Share Posted January 22, 2014 Salut dragi colegi....lucrez la un tv cu placa 11ak19b1 care parea ca este in stend-by cu ledul rosu aprins dar lumineaza doar la jumatate de valoare.... am dat tranzistorul final afara si am pus bec, sa verificat condensatorii, diodele tensiuni in stend-by dar nu pornea si am scos memoria..... surpriza... a pornit are rastru dar nu si imagine. Daca ating pinii selectorului are ceva imagine pe diferite canale chiar color dar sunetul are valoare de minim chiar daca al maresc. Am pus alta memorie si nu porneste dar porneste daca o scot ........dati-mi macar o idee. Link to comment
dan cod Posted January 22, 2014 Share Posted January 22, 2014 Poate trebuie memorie scrisa.Ce procesor are sa cautam un dump? Link to comment
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