Just wanted to add my two cents in here.. I'm a new member and have been reading this thread along with others from different forums and thought I'd give the mod a try.
My SNES is labeled SNS-GPM-CPU-02 and has the S-ENC A chip. I started just wiring from pins 1, 23, and 24 and got sub-par results. I then pulled the Y signal from the multi-out and that definitely helped, but the colors still seemed off.
I took advice from the thread on sega-16.com, posted by Ace, to wire in a transistor and the 1k pull down resistor onto the Pb and Pr signals. This made the colors look what I would deem acceptable.
To wrap it up in a nice neat package, I scavenged an AV out connector from a non-working Xbox and mounted it on the back of the SNES. I wired in the component video signals, as well as the composite signal and stereo audio (which I took from the multi-out). This basically keeps the original functionality of the multi-out connector and adds the component without having to mount a ton of RCA connectors.
Here's an album with a few pictures I took along the way:
http://imgur.com/a/s9m9hThe only issue I'm running into is that my TV is a 50" plasma and the picture isn't very steady. Here's a video I recorded that shows what I'm talking about:
http://www.youtube.com/watch?v=yZqgjfXfHocI'm assuming this is just my TV not being able to handle the 240p signal, as discussed before. Anyone have any thoughts otherwise?
