sony kdl 50w829b TV lines

Hi

I have repaired a T-con board in the past, so thought I could take a look at my other TV that has just broken. Initially, it was just lines where there was brightness, but after opening the back and ensuring all the ribbons are connected, it now looks worse. The TV was working fine until I contected a PS2 via RGB component cable. Worked fine, but was broken when I came back to it.