Samsung Plasma TV Has no power and no red light

I have a Samsung plasma TV model pn51f4500af. It randomly had no power one morning after it was working just fine the night before. No red standby light or anything. After reading through other guides, I have assumed it was a bad power supply or a bad fuse, So I just went all out and bought a new power supply. After taking the back off, and removing the old power supply, and reattaching the new one, I am still not getting any power to the TV and no standby light still. I had purchased another power cord to rule that out also. Any ideas?