Hi,i dono i post it in the right place a not,if not can mod help me moved,now my problem is

Just now watching tv,suddenly the tv shut itself down and the red light is blinking 12 times. It will not come back on.Then when u switch it back,it wont have the picture only sound and i try to switch channel it auto switch off again.

who experince this problem can help me plsssssss......tq very much.