parutzu Posted October 10, 2016 Share Posted October 10, 2016 (edited) Salut ! Am la reparat Acest Lcd cu mainboard TP.SIS231.PT85 cu panel LC320TU3A , caruia i-am skimbat softul prin metoda stick , si am intampinat si eu aceeasi problema ca in topicurile precedente , si anume butoane inversate la comenzi si nu mai recunoaste telecomanda. In fine dupa toate astea am decis sa ii scriu memoria flash cu un dump (in prealabil am salvat dumpul de pe memorie- nu cel original) si apoi surpriza : nu mai pornea deloc si nici sa ii mai bag firmware cu stickul nu mai mergea statea doar in stand-by. Pana la urma am reusit sa il fac sa porneasca cu dump si soft dar nu mai porneste bara de leduri (meniul se vede cu o lanterna pe panel , ia comenzi de la butoane) tensiunea pe bara fiind de 39Vcc fata de vreo 70. Am schimbat si OB3350CP controlerul ledurilor dar la fel. Rugamintea mea ar fi o schema al acestui sasiu si o parere despre ce fenomen se intampla . Pentru eventualitatea ca cineva mai are nevoie de dumpuri ale acestui sasiu atasez Linkuri cu dump si Firmware DUMPURI http://www112.zippyshare.com/v/O1DRCTEn/file.html Firmvare http://www22.zippyshare.com/v/AM4xz0df/file.html Edited October 10, 2016 by parutzu Quote Link to comment Share on other sites More sharing options...
Guest Posted October 10, 2016 Share Posted October 10, 2016 (edited) Verifica daca placa logica da comanda de on la driverul led, daca nu da comanda, este din soft...... Edited October 10, 2016 by Guest Quote Link to comment Share on other sites More sharing options...
parutzu Posted October 10, 2016 Author Share Posted October 10, 2016 Am sa pun osciloscopul la treaba Quote Link to comment Share on other sites More sharing options...
parutzu Posted October 16, 2016 Author Share Posted October 16, 2016 NU am nici un fel de semnal in pin 8 pwm si nici pe iesire in pin 2 spre mosfet. Am gasit dumpul pentru panelul respectiv dar meniul ii merge fara bara de leduri pornita. Are cineva o schema al acestui sasiu ? Quote Link to comment Share on other sites More sharing options...
gogasanyi Posted July 18, 2017 Share Posted July 18, 2017 Va rog daca mai puteti sa ne puneti la dispozitie dumpul si firmware-ul. Multumesc. Quote Link to comment Share on other sites More sharing options...
gogasanyi Posted July 18, 2017 Share Posted July 18, 2017 Va rog daca mai puteti sa ne puneti la dispozitie dumpul si firmware-ul. Multumesc. Quote Link to comment Share on other sites More sharing options...
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