Hello Madonna owners, does someone know what the small PCB does? It’s connected to the coin switch and I can hear, the counter when pressing the switch, but the game is not registering the credit. Is it the resistor on the otherwise of the zener diode maybe?
The blue cable on the the connector on top goes to pin 16 jamma, which is the coin register. When I bridge one cable to the blue wire from the coin switch and the other one to ground, this should work or am I wrong? There is an orange wire, which goes to the 12V on the jamma. This is for the small coin PCB to work I guess? If someone with a Madonna could check if the resistor on the zener diode is correct, would be of much help. Thanks.
The blue cable on the the connector on top goes to pin 16 jamma, which is the coin register. When I bridge one cable to the blue wire from the coin switch and the other one to ground, this should work or am I wrong? There is an orange wire, which goes to the 12V on the jamma. This is for the small coin PCB to work I guess? If someone with a Madonna could check if the resistor on the zener diode is correct, would be of much help. Thanks.