Ps3 Display problem

Hello,
I have recently repair my ps3 after i had a YLOD but now my tv screen says their is no signal whether i put a HDMI cable in or a normal Sony component cable in. The display when i turn it on when fizzy and then I tried lot of different cable and now its saying no signal on my tv. so at least before i was getting something. Please help. I have also tried doing a factory reset an it didnt work.