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TV SASIU 11AK30A11

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BUNA SEARA , ACEST TV FUNCTIONEAZA CCA 3-5 MIN DUPA CARE RAMANE CU SUNET FARA IMAGINE .B+ 110 CAND FUNCTIONEAZA 114 V CAND NU ARE IMAGINE.LA ACTIONAREA VOLUMULUI ACESTA SE MODIFICA .LA SCHIMBAREA CANALULUI LA FEL ACESTA SCHIMBA ,SE OBSERVA LA SUNET.PRACTIC DISPARE FIT SI RECUPERATELE DIN TRAFO.AM SCHIMBAT FINAL LINII + C DE 10 MF. AVETI O PARERE?MULTUMESC !

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O zona mult discutata , C618, C619,R639.Aceste componente formeaza o configuratie de divizor nivel de impulsuri tip potentiometru. Cursorul este R639, punctul cald C618, punctul rece C619.Daca mariti capacitatea C 619 mergeti cu R639 mai spre GND , deci se micsoreaza nivelul impulsurilor pe R639 si in consecinta STV224x va fi obligat sa ia decizii. Important este sa se pastreze raportul intre C618 si C619.Cum C618 e valoare critica, neaparat C619 trebuie sa aiba 100nF.

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Merge si cu 150nF,testat pe sasiu functional.Sunt sasie care au din fabrica montat 150nF.

personal pun 220nf ,de cateva luni,nu sa intors nici unul inapoi,precum si 2bucati in paralel md1803df pin la pin,in loc de 808 sau 5388,(care rar cand comand e vre-un lot fara probleme) c613 pun 47mf 63v,si totul este ok,la cele cu tub plat maresc radiatorul tz final linii,cu toate ca fata de un c5388 sau 808 este doar cald,30-45grade,successuri
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