Re: LG 42LV5400 powers on, no video, no sound

Hi, i have an lg 50pk750. Im experiencing the same thing. The tv turns on, the main blue light is reactive to remote and manual button pushes, but no menu/vol bar, no sound and no picture. The lcd screen is lit and looks normal, even lights up for a moment on start up. I replaced what looked like a bad capacitor on the power supply board with no change. After reading the thread, im thinking the problem is somewhere on the main board instead. Am i correct? Thanks in advance