mario2007 Posted December 7, 2011 Share Posted December 7, 2011 Salut,am intampinat o problema la sasiul 11ak30a4,,nu functioneaza baleiajul pe orizontala,pe ecranul tv apare o dunga verticala ce circa 1,5 cm,finalul linii este ok,tensiunea de sursa ok,am verificat bobina de deflexie are 3,5 ohmi pe orizontala,respectiv 13 ohmi pe verticala,se incalzeste tare rezistenta R645 33k/5w,am verificat si condensatorul C628 3u3/160v sunt ok,deasemenea am verificat si condensatorul C613 de 10uF din baza Q603 final linii...am demontat si deflexia si nu prezinta urme de incalzire la bobinele pe orizontala (ma gandeam sa nu aibe vreo spira in scurt)....un sfat va rog.Multumesc anticipat! Link to comment Share on other sites More sharing options...
BUGHIU Posted December 7, 2011 Share Posted December 7, 2011 Vedeti ca e defect condi C627(430NF/250V) Link to comment Share on other sites More sharing options...
Vas Posted December 7, 2011 Share Posted December 7, 2011 C-ul de cuplaj cu deflexie intrerupt.Daca are picior cu contact imperfect,se incalzeste pinul si se intrerupe. Link to comment Share on other sites More sharing options...
cristi71 Posted December 7, 2011 Share Posted December 7, 2011 aveti sigur circuitul de cuplaj cu deflexia intrerupt( traseu sau cond).. daca avea scurt in deflexie ( pina la o dunga verticala nu plecau liniile niciodata) aveti condensatorul de cuplaj intrerupt probabil. nu stiu cat e la acest sasiu dar de regula in jurul valorii de 390 de nano.( daca imi amintesc parca 430 de nano era..0.43micro) imi cer scuze au raspuns colegii mai sus. unde am raspuns eu nu erau aceste posturi. rog un moderator sa stearga postul meu. dealtfel inutil acum.multumesc. Link to comment Share on other sites More sharing options...
bobo Posted December 7, 2011 Share Posted December 7, 2011 defect tipic c627=430nano/250v sau traseul lui intrerupt ori cu lipitura rece.s-a tot discutat despre acest defect. Link to comment Share on other sites More sharing options...
Toni Marginean Posted December 7, 2011 Share Posted December 7, 2011 Contact imperfect la un pin al bobinei L603, sau chiar bobina intrerupta. Link to comment Share on other sites More sharing options...
mario2007 Posted December 7, 2011 Author Share Posted December 7, 2011 Multumesc mult....chiar acum am rezolvat problema intradevar era condensatorul C627 - 430nF/250V....am pus 470nf/400v(asta am gasit acum) si a pornit!Sper sa mearga si 470nf. Link to comment Share on other sites More sharing options...
dan cod Posted December 8, 2011 Share Posted December 8, 2011 Daca dimensiunea orizontala este buna lasati-l asa va merge . Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.