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Monitor LG L1717s .LED-ul se aprinde intermitent

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Monitor lcd LG FLATRON L1717S nu are lumina .La o privire mai atenta se obseva ca lumina clipeste si abia se intrezareste un fel de "logo"Ledul clipeste verde .Tensiunile de 12v,5v,si 3,3v sunt.Este clar ca nu se apride backlightu-l , doar clipeste.Nu gasesc schema sursei si a invertorului.Pe ea scrie yuyang telecom yp 1904lMa puteti ajuta?Am gasit un condensator de 680 mf/25v exploadat(cauciucul).Dupa ce l-am inlocuit se manifesta cum am spus.Inainte de al inlocui nu se vedea nimic si ledul statea verde.Toate incercarile au fost facute cu monitorul necuplat la calculator.

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