hello everyone,
I have a little problem with my Quatro4 device in my european version of the 4 player Simpsons arcade cabinet.

The old Quatro4 device was broken, so we installed a new one. Unfortunately we didnt have a manual for the Quatro4 (couldn't find it on internet either), so we tried to pull it off ourselves but unfortunately it didnt worked out. Right now, we pulled out all the electric wires out of the Quatro4 to install it again from start. I was wondering if someone here has experience with the Quatro4 device and can offer me some help. For instance, is there anyone here who has the same cabinet and uses a Quatro4 device too? Can you upload a picture so I can take a look at the wiring in your cabinet?
The main problem is, that this cabinet, to my knowledge, doesnt have a freeplay mode. But when I throw in a coin, the option to select a player is unfortunately not availabe. It doesn't seems to connect somehow. The PCB itself works perfectly, we tried it on other cabinets and it works just fine.
here are some pics of the Quatro4 device:


