Guest DanielSan Posted October 20, 2009 Share Posted October 20, 2009 Caut schema Tv Nei in sursa cu tda4601dak ma poate ajuta cineva as fii recunoscator Link to comment Share on other sites More sharing options...
tehtronics Posted October 20, 2009 Share Posted October 20, 2009 daca nu dai toate detaliile ...Posibil NEI Indiana 200, vezi aici:viewtopic.php?f=17&t=45266&p=393307&hilit=indiana+200#p393307 Link to comment Share on other sites More sharing options...
Guest DanielSan Posted October 20, 2009 Share Posted October 20, 2009 Multumesc pentru schema chear ma ajutat mult mai ales la condensatorii din sursa pe care am sa i inlocuiesc Sper sa meargaTensiunea de 115 V era numai de 50 VAm inlocuit tda 4601 dar tot nu a mers ai cumva alta idee????Astept rasp Link to comment Share on other sites More sharing options...
tehtronics Posted October 20, 2009 Share Posted October 20, 2009 C813(1000uF/160V)? Link to comment Share on other sites More sharing options...
Guest DanielSan Posted October 20, 2009 Share Posted October 20, 2009 am sa incerc cand ajung acasa te mai tin la curent Mersi mult Link to comment Share on other sites More sharing options...
Guest DanielSan Posted October 20, 2009 Share Posted October 20, 2009 am inlocuit si c813 dar tot nu creste tensiunaAs rasp ! Link to comment Share on other sites More sharing options...
Spitfire Posted October 20, 2009 Share Posted October 20, 2009 Posibil scurt intre spirele primarului de la traful chopper...celelalte tensiuni sunt ok?Presupun ca nu, deci nu prea isi are rostul inlocuirea de condensatori...cel pe care l-ati inlocuit era de 100uF/160V sau 1000uF/160V?! Link to comment Share on other sites More sharing options...
tehtronics Posted October 20, 2009 Share Posted October 20, 2009 ...scuze, greseala mea: 100uF/160V Link to comment Share on other sites More sharing options...
tehtronics Posted October 20, 2009 Share Posted October 20, 2009 montarea unei surse UPS001, ar elucida problema ta: trafo chopper sau sursa.cred ca ai decuplat toti consumatorii din secundar si ai probat sursa pe sarcina artificiala(bec 60W) asta ca sa elimini posibilitatea unui consum marit... Link to comment Share on other sites More sharing options...
Guest DanielSan Posted October 21, 2009 Share Posted October 21, 2009 Posibil scurt intre spirele primarului de la traful chopper...celelalte tensiuni sunt ok?Presupun ca nu, deci nu prea isi are rostul inlocuirea de condensatori...cel pe care l-ati inlocuit era de 100uF/160V sau 1000uF/160V?!Condensatoru era intradevar de 100uF/160V dar tot nu am obtinut nimic tensiunile fiind foarte mici chear si pe C804 scade tensiunea la 135V (condensatoru lam schimbat)Tv-ul are un zgomot (tzarait) la pornire ramanand permanent.Astept rasp Link to comment Share on other sites More sharing options...
Guest DanielSan Posted October 21, 2009 Share Posted October 21, 2009 Am verificat in sursa si cu bec Acum urmand sa inlocuiesc transformatorul chopperMultumesc pentru sfat Link to comment Share on other sites More sharing options...
naetv Posted October 21, 2009 Share Posted October 21, 2009 Daca scade atit - pina la 135V - pe C804 nu are de unde sa apara 115V dupa transformatorul chopper .Cauze nu pot fi multe : reteaua cu tensiune scazuta , contacte imperfecte-lipituri proaste ,diode intrerupte , rezistenta de 2,7 R801 aproape arsa , sau si cond 804 - 100uf/400V posibil defect (uscat) si cel schimbat.Trafo chopper nu poate provoca scaderea tensiunii pe C804 , ca sa scada de la aprox. 300V la 135V ar trebui sa aiba scurt puternic nu consum marit si se arde ori siguranta ori rezistenta R801. Link to comment Share on other sites More sharing options...
Guest DanielSan Posted October 27, 2009 Share Posted October 27, 2009 Da intradevar a fost R801 de 2.7 Eu am cumparat de la magazin rezistenta dar a fost de 2.7k si nu am observat . Am montat-o si de aceea am avut caderea aceea mare de tensiune pe C804.Multumesc tuturor pt ajutoru acordat si pentru promptitudineSper sa ma pot revansa in viitor si eu fata de voi. Link to comment Share on other sites More sharing options...
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