Hitachi 50HYT62U no picture

Hitachi 50HYT62U, has backlights but no picture, just completely blank screen, I am getting 12v either side of Tcon fuse, of I unplug one Tcon ribbon I get no change, if I unplug the other side instead, I get change, white screen with lines.

any ideas anyone??

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0