I found a Samsung 46 inch TV on the side of the road, so I decided to pick it up and bring home to fix it. So I plugged the tv in got nothing no illumination, no clicking, no red light on the bottom of the tv. My next step was to take begin isolating the power supply and the main board. When I disconnect the main board from the power supply and I plug the tv in, I get a illuminated backlight but as soon as I plug the main board in thebacklight shuts off. I have never tried to fix a tv before but I always love the challenge of fixing somethin myself. I believe the problem is the main board but...