gigitv Posted December 10, 2015 Share Posted December 10, 2015 sasiu aa41 echipat cu tda9351ps/n2/, sursa 5q0763rt, tensiuni alimentare bune inclusiv dupa ci stab ka7632 . aleatoriu in timpul functionarii dispare imaginea si rastrul , sonorul este ok. la verificari am obs ca tens rgb spre finalul video tda6107 de la aprox 2,5v scad la 0,5v inclusiv tens de 6v de pe pin 5 (parca) al tda scade la 2-3v. tens pe g2 (screen) nu se modifica, tensiunile de alim nu se modifica nici ele, cond de filtraj pe 3,2v 5v, 8v i-am inlocuit si m-am cam oprit la iesirile rgb ale junglei , multumesc anticipat pt orice idee Link to comment
valangjed Posted December 10, 2015 Share Posted December 10, 2015 (edited) Nu cumva are niste diode Zener pe iesirile RGB ale tda 9351?Daca are ar trebui verificate. Edited December 11, 2015 by valangjed Link to comment
leoncris Posted December 11, 2015 Share Posted December 11, 2015 Sasiul este KS1A http://archive.espec.ws/section328/file14573.html Refa ... lipiturile Link to comment
dan cod Posted December 11, 2015 Share Posted December 11, 2015 Inclusiv la finalul linii. Link to comment
bobo Posted December 11, 2015 Share Posted December 11, 2015 Cl redus si se rezolva.Apoi reglat ug2 pana apare OK. Link to comment
gigitv Posted December 12, 2015 Author Share Posted December 12, 2015 am refacut lipiturile junglei-finalului video , nu are diode zener pe iesirile rgb , am incercat si cu reducerea claritatii si apoi reglajul lui ug2 dar tv-ul face la fel. dupa modificarea cl si ug2 s-au modificat tens iesire rgb jungla cand am rastru(imag) am 3,5v cand dispare raman 1,5v Link to comment
adydep Posted December 12, 2015 Share Posted December 12, 2015 CL-cathode level din service;NU claritatea! Link to comment
gigitv Posted December 13, 2015 Author Share Posted December 13, 2015 am intrat in service ( la adjust ) si cred ca ACL ar fi reglajul cathode level de care a-ti spus, insa are decat 2 posibilitati de reglaj 0 si 1. am incercat pe ambele variante si apoi regl ug2 insa fara rezultat favorabil. poate am gresit ceva tot din service am reglat si screen adjust: ok insa imaginea (rastru) dispare in continuare f. des Link to comment
bobo Posted December 13, 2015 Share Posted December 13, 2015 in sm trebuie sa fie CL sau CDL,ala trebuie redus spre zero. Link to comment
gigitv Posted December 13, 2015 Author Share Posted December 13, 2015 CDL redus de la 6 la1 , si screen adjust la ok si sa-l vedem la probe Link to comment
gigitv Posted December 13, 2015 Author Share Posted December 13, 2015 multumesc pt promptitudine si solutie , de aceea am aplicat reducere CDL la 1 , ug2 ok, insa la pornire tv-ul pierde rastrul (imag) de cateva ori si apoi pare ca functioneaza bine, mai multe pot spune la o proba mai corecta nu duminica la ora20, o seara buna Link to comment
adydep Posted December 13, 2015 Share Posted December 13, 2015 Daca functioneaza cu CL redus,si in plus,la pornire "pierde rastrul" cinescopul e la "ultima strigare". Link to comment
peternan Posted December 14, 2015 Share Posted December 14, 2015 Cum se intra in service ? Am incercat display-menu-mute-power on si nu imi intra . Multumesc! O tasta nu facea contact ferm ! Link to comment
Florinel TV Posted December 14, 2015 Share Posted December 14, 2015 cu tv in stand by - info - menu - mute - power on Link to comment
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