vali35 Posted June 10, 2014 Share Posted June 10, 2014 Buna ! Am un tv Samsung , sasiu ks1a , nu porneste sursa ,am inlocuit controlerul si cond. electrolitic , tot nu porneste ,tensiunea la pin 3 este ~ 5 v , nu stiu ce sa-I mai fac , posibil sa fie prost chiar SPS controlerul cumparat ? Va rog , poate veniti cu o idee . Va multumesc ! Quote Link to comment Share on other sites More sharing options...
dan cod Posted June 10, 2014 Share Posted June 10, 2014 In secundar nu este ceva in scurt?Poate fi CIul stift am mai patit la sadiul asta dar inainte de asta trebuie verificat si nsecundarul.Cu CIul original ce facea? Quote Link to comment Share on other sites More sharing options...
vali35 Posted June 10, 2014 Author Share Posted June 10, 2014 tot asa se manifesta , si am banuit controlerul ... Quote Link to comment Share on other sites More sharing options...
dan cod Posted June 10, 2014 Share Posted June 10, 2014 Probabil ca si originalul este bun si ai altceva defect acolo.Ai masurat sa nu ai scurt in secundar? Quote Link to comment Share on other sites More sharing options...
vali35 Posted June 10, 2014 Author Share Posted June 10, 2014 am verificat si chiar deconectat iesirile din chopper dar nimic , veridicat si deconectat diodele , nu simte nimic , am verificat in sursa rez. diode pare ok , multumesc domnu dan cod pentru raspunsuri si timpul acordat Quote Link to comment Share on other sites More sharing options...
dan cod Posted June 10, 2014 Share Posted June 10, 2014 Ai mai multe zennere in primar sunt bune?R811 si R812 sunt bune?R803,R804? Quote Link to comment Share on other sites More sharing options...
dan-a2 Posted June 10, 2014 Share Posted June 10, 2014 (edited) Daca ai esr-metru , masoara C 802 >> e posibil sa fie defect (chiar daca e nou ) ,poti pune si un 47mf !! Vezi si filtrajul pe puntea de diode !! Edited June 10, 2014 by dan-a2 Quote Link to comment Share on other sites More sharing options...
vali35 Posted June 10, 2014 Author Share Posted June 10, 2014 am schimbat si cond . , am luat alt controler si -nimic-, diodele par ok masurate in circuit , r803, r804 , lipsesc din circuit , la fel si optocuplorul -asa este facuta sursa de fabricant , ma dispera tv-ul asta ... va multumesc tuturor ....mai aveti vre-o idee ? pe cond. de filtraj am 310 v,este ok iar la pin 3 controler ~5 v Quote Link to comment Share on other sites More sharing options...
dan cod Posted June 10, 2014 Share Posted June 10, 2014 Daca sursa nu are optocuplor eu as pune de proba un UPS001 sa fiu sigur ca in secundar totul este ok. Quote Link to comment Share on other sites More sharing options...
electronix_2006 Posted June 10, 2014 Share Posted June 10, 2014 in pinul 3 al ci 5q0765rt aveti o dioda zener de 33v care trebuie schimbata .la unele modele am intanlit dioda la 27v .succes. Quote Link to comment Share on other sites More sharing options...
vali35 Posted June 11, 2014 Author Share Posted June 11, 2014 (edited) Multumesc tuturor pentru interesul acordat . Stimate domn "electronix 2006" aveti perfecta dreptate , am schimbat diode DZ 803 (27V) am pus un zener de 33 v si functioneaza ,va multumesc ,va doresc numai bine si sanatate ! Edited June 11, 2014 by vali35 Quote Link to comment Share on other sites More sharing options...
dan cod Posted June 11, 2014 Share Posted June 11, 2014 Cand am spus de zennere mai sus ai spus ca sunt bune. Quote Link to comment Share on other sites More sharing options...
leoncris Posted June 11, 2014 Share Posted June 11, 2014 "diodele par ok masurate in circuit" - nu se masoara in circuit. Quote Link to comment Share on other sites More sharing options...
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