palcu ion Posted July 11, 2009 Share Posted July 11, 2009 sursa tda 3640,proc sda 2010-a025,simptom initial:pornea fara inalta,afisaj ok,in sursa schimbati toti C,trafo linii schimbatam banuit driver tda8140,l-am schimbat,defectul a persistatla actionarea semireg frecventa sincro a pornit cu imagine cam1/2 din ecran iar dupa cateva min a iesit fum din deflexie;am schimbat-o iar acum nu se poate sincroniza H,am pus alt modul,la fel!nu am intalnit niciodata acest defect,poate stie cineva...multumesc Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 ca un amanunt,regland sr de frecventa linii,in apropierea punctului optim BO se blocheaza Quote Link to comment Share on other sites More sharing options...
daisarqx Posted July 11, 2009 Share Posted July 11, 2009 ai masurat frecventa in baza?15625hz? Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 am specificat,cand ma apropii cu reglajul de 15625hz se blocheaza BO Quote Link to comment Share on other sites More sharing options...
daisarqx Posted July 11, 2009 Share Posted July 11, 2009 verifica c521,d521,r521verifica r524,c522,r522 Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 o sa verific,dar parca n-ar avea legatura logica cu defectul........... Quote Link to comment Share on other sites More sharing options...
daisarqx Posted July 11, 2009 Share Posted July 11, 2009 ai schema? Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 di pacate cele banuite de dv sunt ok,am si schema tv, mai trebuie ceva inspiratie Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 ceva idei? Quote Link to comment Share on other sites More sharing options...
Nonny149 Posted July 11, 2009 Share Posted July 11, 2009 Se blocheaza driverul sau sincro? Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 driverul Quote Link to comment Share on other sites More sharing options...
Nonny149 Posted July 11, 2009 Share Posted July 11, 2009 Am pus tda 8143 cu modificarile necesare si-a mers normal. Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 tu ai avut 8140 def? Quote Link to comment Share on other sites More sharing options...
Nonny149 Posted July 11, 2009 Share Posted July 11, 2009 Chiar din magazin am luat vreo cateva tepe! Aveam unu care continua sa comande tranzistorul si-n st-by,si-l incingea pana crapa. Quote Link to comment Share on other sites More sharing options...
palcu ion Posted July 11, 2009 Author Share Posted July 11, 2009 problema e ca eu am 2 tda 8140 originale schimbate,2 trafo linii,2 module sincro,4 tda 3640,(doar sasiul al doilea este de nefolosit fiind spart)este imposibil sa fie toate defecte,totusi nu sincronizeaza H Quote Link to comment Share on other sites More sharing options...
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