Ok, similar problem with a Sharp LC-52-64U. I have already replaced the TCON board and it makes no difference. The backlights seem to be working ok. Attached are some pictures with the left and right TCON connectors disconnected. The wavy lines are due to the cameral and are not real.

1) With both TCON connectors connected, I get a fat horizontal line that start heavy on the left and is less pronounced on the right. Everything below the horizontal line flickers.
2) If I disconnect the left TCON connector, the right side of the picture is good, just a little dark in the...