I picked up this TV for cheap since it does not power on. I am getting the 3 blink code (3.3v SOS D board) I replaced the power supply board just for fun since it was also cheap and was not too surprised (no swollen caps) when that didn't do the trick. I am new to repairing tv's and lack the skill/equipment to properly diagnose it therefore I relied on research which led me to replacing the main board with no success. What else could be wrong? Where do I go from here? Not sure if it's relevant but if I disconnect the SC board I get 7 blinks instead of 3. Any help would be greatly appreciated.