SEBYKO_76 Posted December 12, 2015 Share Posted December 12, 2015 Buna seara tuturor...Am un Tv Samsung CW-29M064M canalele intre 300-400 Mhz (banda 3) din cand in cand nu functioneaza...I-am schimbat selectorul, acelasi defect....Uneori intra canalele, alterori nu...Selectorul este TECC0949PG35A....Ce oare poate avea...?? Link to comment
SEBYKO_76 Posted December 12, 2015 Author Share Posted December 12, 2015 (edited) Observ ca numai dupa cateva minute de functionare unele canale nu functioneaza....A mai intalnit cineva asemenea defect?? Edited December 12, 2015 by SEBYKO_76 Link to comment
Florinel TV Posted December 12, 2015 Share Posted December 12, 2015 tensiunea de 33v pe selector este ok Link to comment
dan cod Posted December 12, 2015 Share Posted December 12, 2015 Tunerul pus e sigur bun? Link to comment
SEBYKO_76 Posted December 12, 2015 Author Share Posted December 12, 2015 (edited) Am 33 V..Tunerul este ok..Este luat dintr-un tv perfect functional...Va multumesc pentru ajutor... Tv-ul functioneaza perfect cateva minute, schimba canalele, memoreaza , iar dupa cateva minute daca trec pe altele si revin nu se mai vad, ca si când nu au fost instalate...Deci nu pe toate se intampla acest fenomen doar pe unele din banda 3.. Edited December 12, 2015 by SEBYKO_76 Link to comment
Florinel TV Posted December 12, 2015 Share Posted December 12, 2015 incearca cu un dump pe un ic de memorie noua 1 Link to comment
SEBYKO_76 Posted December 13, 2015 Author Share Posted December 13, 2015 Multumesc de ajutor..O sa imi cumpar si un programator...am sa incerc cu o memorie programata dintr-un alt tv identic... Link to comment
SEBYKO_76 Posted December 13, 2015 Author Share Posted December 13, 2015 (edited) Revin cu detalii...Am schimbat memoria 24C16 programata de la un alt tv....se pare ca functioneaza mai bine, nu este perfect dar este o schimbare...Dimensiunea pe verticala este marita, in service la acet tv se intra cu comanda : Info-menu-mute-power on?? Mda, m-am grabit cu raspunsul...Am schimbat tunerul si memoria, defectul este acelasi.... Edited December 13, 2015 by SEBYKO_76 Link to comment
Florinel TV Posted December 13, 2015 Share Posted December 13, 2015 schimba si filtru (fusul) Link to comment
SEBYKO_76 Posted December 13, 2015 Author Share Posted December 13, 2015 (edited) L-am schimbat...Se vede o imbunatatire considerabila, dar parca nu-i perfect, pe canalul prima, inaca mai face "figuri"..L-am schimbat si pe celalalt ..k9650.. Hmmm se pare ca nu acolo este problema..a functionat de joi pana...."cand s-a incalzit"..acelasi defect...Eu cred ca defectul este un condensator care isi pierde din parametrii dupa cateva minute de functionare... Edited December 13, 2015 by SEBYKO_76 Link to comment
SEBYKO_76 Posted December 13, 2015 Author Share Posted December 13, 2015 (edited) Posibil defect TDA12025PQ/N1F80?? Chiar nimeni nu a mai intalnit acest defect??? Edited December 13, 2015 by SEBYKO_76 Link to comment
Florinel TV Posted December 13, 2015 Share Posted December 13, 2015 alimentarile la proc sint corecte la selector 5v stabile agc-ul verificat Link to comment
SEBYKO_76 Posted December 13, 2015 Author Share Posted December 13, 2015 (edited) Tensiunile la procesor sunt urmatoarele: Pin 9, 16, 86, 88=3.1V pin 43= intre 6,8-7,8V-instabila. pin 63=4,8V Tensiunea pe selector = 4,8V.. Tensiunea A+ =124V ar trebuie sa fie 130V?? Edited December 13, 2015 by SEBYKO_76 Link to comment
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