You want to make sure you order the right board as there is a, ZH or a ZE stamp on the T-Con . It more likely not the T-CON, it could be a bad panel, work on this model a few time and know them well. if you were getting One side of the picture is darker than the other, picture has horizontal line, a dark, cloudy spot spreads across the picture, white dots. Don't buy a new T-Con board, will just be wasting money, you just damage the new board within minutes. Now if your audio having issue to, then it a bad BGA on the main board.
Remove the cable to IR board and power it on.