Trol
Professional
Standard happ pinout.
https://www.google.com/url?sa=t&sou...FjAKegQIARAC&usg=AOvVaw3G7z6d4xlwOWYichlGSWng
https://www.google.com/url?sa=t&sou...FjAKegQIARAC&usg=AOvVaw3G7z6d4xlwOWYichlGSWng
So looking at that, it's not a simple switch for the trigger. There's a signal off the PCB in the gun. So no way to test if it's the gun or the board. However, I think it's the gun board. I tried a different IO board with the same results. Just not sure what else I can try given what I have on hand.