bobo 78 Posted July 1, 2014 buna seara. care este modalitatea de anulare a protectiei? am incercat sa-l "pacalesc" cu un led din pinul 4 la masa dar nu functioneaza. exista alta modalitate sau am omis ceva? multumesc anticipat. 0 Quote Share this post Link to post Share on other sites
Guest cata82 Posted July 2, 2014 Mai inseriati cu ledul un rezistor de 5.1k alimentat la o tensiune de 8-15v. 0 Quote Share this post Link to post Share on other sites
iuliantv 258 Posted July 2, 2014 (edited) CEVA DE GENUL http://tel-spb.ru/inv_za.html Edited July 2, 2014 by iuliantv 0 Quote Share this post Link to post Share on other sites
Guest cata82 Posted July 2, 2014 Da, asta e. 0 Quote Share this post Link to post Share on other sites
dan cod 324 Posted July 2, 2014 Cu led in pin 4 trebuie sa functioneze este verificat de mine pe mai multe. 0 Quote Share this post Link to post Share on other sites
leoncris 158 Posted July 2, 2014 Daca se respecta ... polaritatea . 0 Quote Share this post Link to post Share on other sites
dan cod 324 Posted July 2, 2014 Da asta asa este. 0 Quote Share this post Link to post Share on other sites
bobo 78 Posted July 5, 2014 (edited) buna seara. era arsa siguranta smd f1,cea din zona oz964g. siguranta f2 de deasupra conectorului era ok. cu led din pinul 4 la masa(polarizat direct) functioneaza fara o lampa deci se confirma cele spuse de colegi. multumesc tuturor colegilor.. Edited July 5, 2014 by bobo 0 Quote Share this post Link to post Share on other sites
Costica LCD 500 Posted April 14, 2016 (edited) Salut. Stie cineva cum se anuleaza protectia la acest invertor: VIT71037.50 LOGAH REV.1, metoda cu led la pinul 4 sau 10(OZ964SN) am incercat-o, dar fara rezultat, gasisem odata pe un forum ceva asemanator, unde anularea se facea prin deconectarea unor pinii la LM339, dar nu mai dau de acel forum. Samsung LE37A557P2F CI-urile de pe Invertor: U1=LM339 U2=OZ964SN U3=LM324 Edited April 14, 2016 by Costica LCD 0 Quote Share this post Link to post Share on other sites
Florinel TV 530 Posted April 14, 2016 gasesti aici http://tel-spb.ru/inv_za.html#OZ964 0 Quote Share this post Link to post Share on other sites
leoncris 158 Posted April 14, 2016 (edited) Ai 5V in pinul 5 ? http://archive.espec.ws/section328/file19858.html Edited April 14, 2016 by leoncris 0 Quote Share this post Link to post Share on other sites
Costica LCD 500 Posted April 14, 2016 Ai 5V in pinul 5 ? C8 , inlocuit ? Tv-ul functioneaza perfect 3-4 ore dupa care invertorul intra inexplicabil in protectie, ramine doar sunet-ul, mentionez ca am verificat lampii, chopper-e, c-urile de pe invertor, sursa e ok......., si culmea e ca doar cu capacul(tv) pus face aceasta manifestare, fara capac nu se mai opreste. Dupa intrarea in protectie a invertor-ului ramine 5v la pin-ul 5(OZ964SN). 0 Quote Share this post Link to post Share on other sites
Costica LCD 500 Posted April 14, 2016 A testat cineva schema de mai jos, pe invertoare, care in afara de OZ964 mai are si alte integrate?(LM339, LM324........etc). Zice ceva rusu-l aici "В LCD LG 32LK330-ZB Инвертор VIT71884.00 REV:2.LOGAH (OZ964 + LM339) победить не удалось, то работает, то нет, но удалось отключить защиту только одновременно по 4 и 10 ногам. По отдельности защита не блокировалась", dar din traducerea google nu poti pricepe nimic. 0 Quote Share this post Link to post Share on other sites
iuliantv 258 Posted April 14, 2016 eu da,dar nu pe modelul dv de invertor 0 Quote Share this post Link to post Share on other sites
andrei_ 337 Posted April 14, 2016 Are o diodă bleagă,la căldură înnebunește 0 Quote Share this post Link to post Share on other sites
