stefank Posted January 17, 2015 Share Posted January 17, 2015 Buna ziua , acest lcd are imagine 2 secunde dupa care se stinge iluminarea panelului si se aude doar sunetul . Am verificat bara de 24 volti era ok dar am schimbat totusi electroliticii dar fara rezultat . Modulele invertoare master slave sint ITW-EE26-M si ITW-EE26-S iar controlerul cu care este prevazut masterul est OZ9936 , exista vreo modalitate de eliminare a protectiei ? Multumesc . Link to comment
BUGHIU Posted January 17, 2015 Share Posted January 17, 2015 Pentru OZ99361 este varianta !!! Pentru OZ9936.....nu stiu daca este acelasi lucru....!!!! Link to comment
stefank Posted January 17, 2015 Author Share Posted January 17, 2015 terminatia exacta este OZ9936ICN daca vad bine cu lupa ( sau 1CN ? sau 1GN ? IGN ? ) , nu am schema invertorului sa stiu exact , multumesc Link to comment
leoncris Posted January 17, 2015 Share Posted January 17, 2015 http://www.dtforum.info/index.php?topic=104328.msg1010911387 Link to comment
stefank Posted January 20, 2015 Author Share Posted January 20, 2015 am facut montajul respectiv dar oricum reglez semireglabilul tot decupleaza lampile , in cele 2-3 secunde imaginea e buna , nu se observa anomalii in uniformitatea iluminarii Link to comment
dan cod Posted January 20, 2015 Share Posted January 20, 2015 Am facut si eu montajul si nu a mres cu el decat tot asa.E aiurea ideea aia de acolo. Link to comment
neculavasile Posted January 20, 2015 Share Posted January 20, 2015 in rest ce alte verificari au fost facute? trafo.lampi etc Link to comment
stefank Posted February 26, 2015 Author Share Posted February 26, 2015 Am revenit la acest lcd , cautind pe net am gasit o rezolvare care merge la acest tv , in pinul 1 trebuie injectat 2 volti dar cu pinul deconectat de la restul circuitelor , ridicat in aer de pe pcb si asa alimentat cu 2 volti . Eu am gasit un 5 volti pe un condensator smd din zona pinilor 7 - 8 , am lipit un semireglabil de 22kohmi intre masa si acei 5 volti , am reglat sa fie 2 volti pe cursor si apoi am conectat la pinul 1 OZ . Dupa pornire nu s-au mai stins neoanele cu toate ca masurat pe pinul 1 era 1,90 volti . Link to comment
bubi Posted February 8, 2016 Share Posted February 8, 2016 buna ziua ,am facut si eu aceasta modificare si merge dar ce trebuie schimbat ca sa mearga normal, fara modificare? Link to comment
leoncris Posted February 8, 2016 Share Posted February 8, 2016 Tubul/rile CCFL defecte/uzate. Link to comment
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