Gamestop brand psx/ps2 controller to arcade stick

*moved from

I bought a Gamestop brand psx/ps2 compatible controller (I think the wrapping said it was a micro controller). Here’s the inside:

Can I get help on figuring out where the signals and ground are for this PCB? Thanks kindly.

Try posting in the pad hacking thread.

The Yellow is Ground.

my mistake; close thread please