I am working on an arcade panel for my beloved old SEGA Master System I (SMS). For now I am building a prototype out of a small table, just to have a place to fix the arcade joystick and buttons while I experiment with soldering and wiring.
I havde attached a picture of the PCB from an old control stick that I have taken apart. I plan to 'pad hack' this control stick, in the sense that I will connect the new arcade controls to this control stick PCB, and then use the original cable to connect to the master system power base.
I need your help on two issues:
1) Am I right if I claim (from top to bottom): Silver = ground, black = ground, white = button 2, blue = button 1?
2) Can I make a third button (acting as button 1 and 2 pressed simultaneously) by soldering an additional wire to both of the solder points of the white and blue wires (the other end of the wire soldered to the third button on the panel)? I know I also have to ground this third button. I think it would be cool to have a button for magic in Golden Axe...