Have a white screen. I get the Samsung sound when you turn on the tv. I can faintly see the menu. When I plug in coax or hdmi from the cable box I get no picture or sound. The same cable box is working fine with another HD TV.
Here is what I have done:
swapped T-Conn card and no change
swapped main board (board with HDMI's, RCA jacks etc) and no change
I'm thinking maybe swap the power supply next? The caps don't look bad and it has no problem turning on.