Why is my lg screen have no picture but has sound
Little by little areas of screen are going dark and now when I turn tv on it has sound but no picture. To get it back to display picture I have to turn it on and off many times till finally the picture returns then sometimes it goes blank again, then I have to repeat the process. Pretty soon it's going to stay blank permanently. Could this be back lights, motherboard or something else? This is a lg model #50ga6400-ud 3d tv.
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