I'm looking up how to mod a SNES for S-Video output and a thread popped out about how one should get a "Sony CXA2075" instead of soldering directly to pins under the video port. Is really worth it to hunt down a RGB to NTSC/Pal IC encoder, like from Digikey, or just stick with the barebones?
You could make your own S-video cable. 1/buy a couple of those nasty AV cables (the ones off ebay $2 posted). 2/CAREFULLY cut along the seam of the plug, unsolder the existing wires and remove the clip between the pins. Do this for both AV cables. 3/Following the SNES AV pinout, line-up the pins you require for S-video. 4/Using quality S-video cable (and audio as well) wire the whole lot back 5/? 6/Profit Maybe not neat (can be made to look neat though I suppose) but functional.
By my question is regarding that Sony IC encoder. I know what to do with the usual method, but I'm wondering if it's worth it to convert RGB from the video chip, NOT the pins at the port, into S-Video.
Hey OP, you're aware that the SNES supports RGB too right? If picture quality was your concern, RGB is your best choice, and you don't need to mod the console.
It's a waste of effort unless you can find an RGB to s-video encoder chip significantly greater than Nintendo included. Otherwise just wire the s-video lines to an s-video socket so almost any generic cable will work.
That I did. Left screen: Snes mini (onechip ppu) with a sony cxa2075 which produces a much sharper image than the built in rohm encoder. Right screen: s-video from a stock model 1 snes (two ppu system).