I installed a pot and amp meter and tossed the digital control. The pot works great and the test fire switch shows. The glcd works and goes through the menus. The laser fires if the fire pin on the laser board is connected. The wire is green in the photos. The supply fire pin shows 4v with the green wire disconnected. It goes to 0v when the green wire is connected.
The pin next to the fire pin on the supply is empty on the web site I followed. There is an unknown yellow wire in my setup. I used a scope in case it was pwm and it is dead 0v.