Does anyone know where to connect SX & Y points on a SCPH-90004? The modchip is a Sun9. I did a google search and didn't find anything.
You have to search by the revision number in the board (GH-070/71/72...). Anyway, I know this site which contains some 900xx modchip diagrams, I think it can be useful for you. Just FYI, CLK is also known by CX point (clock).
Thanks! I did the soldering, but after I turned it on it started making this buzzing sound. It works fine but won't read any discs. I used this diagram since the board is GH-072-42.
