Programmable ECU - Smart Tuning
Finding a complete, official "all-in-one" PDF schematic for the Xbox 360 controller is difficult because Microsoft never publicly released the full internal engineering blueprints. However, the modding and repair communities have reverse-engineered and documented nearly every part of the board.
Pro tip: If you’re tapping buttons for a mod, probe for ground continuity with a multimeter. 90% of the outer button vias are ground.
