I see another problem. I don't know why this part hasn't been added to a sticky yet (or has it?). You need +5V to Pin 12 on the PSOne screen (which I'm assuming you're using) for RGB to work.
Also, RGB requires C Sync to be hooked up as well.
And where is the audio? I don't even see it! Of course it won't work like that!

(Did you take it off?)
With all the audio problems the PSone screen has when trying to hook it up (all the different places and issues etc.) [for me at least] if you don't get it on the first couple tries, and can afford the space, I recommend making/buying a small 1-2W amp. The Speakers can handle it, and it's still loud to hear mid-lunch in the cafeteria.
How did you have your audio hooked up?
Like this?
