Any Gamecube controller's joystick schematics?


Hello Guys,

I screwed up some old gamecube controllers while trying to replace the left stick, and now I cannot solder them to the board as the welding point was lifted. This was years ago, when I was starting to mod stuff around. Now, after watching many repair videos on how to fix GB & GBA games, I was wondering if it would be possible to do it on a gamecube controller (mostly by using a jumper wire). I tried to follow the tracks which lead to every welding point, but despite mixed results, I couldn't make it work at a 100%, but I think the culprit is the fact that I'm not sure if I'm using the correct tracks to do the job.

So... Can anybody point me in the right direction on where to find a detailed gamecube controller schematic? Thanks in advance for helping a noobie out :p