White Screen - No Sound

[spisi]

So, I have a World Series "The Season" arcade machine. The other day it got the white screen no sound bug. After checking it out, it seemed, at the time, that it was the back door safety switch. It was loose, and when I touched it, it basically fell apart. So, I just bypassed it, and everything was working again! Three days later, same symptoms are back. I checked my bypass of the safety switch and it looks good. I tested for power from the supply and at the molex at the main PCB. Everything good there also. Checked all (visible) fuses. They are all good as well. I'm at a standstill. Any ideas???

[spisi]

Here's a pic, I get the red light, which I'm guessing is a good thing.