Black screen/faint enlarged setup screen image E55-E1

After losing HDMI, I tried the bake the main board trick, which seem to workIn the initial power up, but when I hung the TV it was black screen and a very faint and enlarged image of the set up screen… I tried to test the standby voltage, which was zero yes so I bought a used power board (and a used main board) but upon installation found no change- A Faint and enlarged image of a text from the set up screen