I know this is an old post but I just fixed the same model by replacing the eeprom that is located on the tab bond board. I figured it was worth a shot since I had a ton of these TV’s, mostly broken screens, and I save the old tab bond boards. I will go through the boards that I have and set up a listing on ebay if you can still use this fix. I used a 450 degree solder station heat gun and it went surprisingly well. If this can help anyone else my ebay username is JS-Electronics-Parts. Hope this helps anyone searching this problem and I am also going to attempt to make my first youtube video on this as well. Good luck to all.