Does anyone know what the various levers and buttons inside the Bellco Super Bingo pachislo mean?

On the top of the control panel, I have an on/off switch on the left and a black knob with "10A" above it. Any idea what the black knob is for and should it be on a certain setting?

Below the on/off switch is two separate levers that can be pushed to the right or the left. What are those separate levers for and should they be pushed to the right or the left?

Below the two levers are a white button and a red button. What are those two buttons for and, if they change a setting, what setting should they be on?

Needless to say, I do not have an owner's manual.

Thanks for your help!