Help: The circuit board wiring scheme for Luke II

I am new to the forum and I need your help to find the wiring scheme of my guitar. I have just bought a second-hand Luke and want to find the wiring diagram of the circuit board for future mods. Can anybody help me with that? (I have already found the EMG SL20 wiring scheme on the EMG support page. What I want is the one that shows the circuit board.) Thanks in advance.