Some of the basics about how to construct a circuit, how the circuit actually functions, and how to measure and calculate the values of Votage, Amperage (current), and Resistance.
How to use a multimeter to troubleshoot various aspects of a game. A bit of a small electical/electronics crash course in how current flows, what to expect, how to change your settings appropriately, and how to zero out your meter.
The final set of switches on the control unit govern the search process. Everything from the release of the search disc to the lockout of footrail buttons happens here.
The control unit is complete - from switch stack A to switch stack ZB!
In our next-to-last episode detailing the workings of a Bally bingo control unit, we examine the switches necessary for the operation of the payout.
When a winner has been determined, the machine has to have some way of stepping up the replay meter in the backglass.
This is our continued series looking at the control unit on a Bally bingo - specifically the 1972 Double-Up.
These switches are involved with normal gameplay, and only comprise a little over half of the switches and cams involved in making the game operate as per normal.
The first switches in the control unit are required for timing out the motor, thus saving wear and tear on the motor.
It is crucial that these switches are adjusted properly or your motor will never stop running.
Bally's Control Unit was an ingenious design for several reasons - in the bingos, one of the most impressive designs was how very serviceable these units are.
You take one part Bally score motor, add in some more power and clutches, and you have a rather simple design that allows for servicing from almost any angle.
I love 'em!
The last (for now) in my score motors series detailing the differences between the various manfacturers and their approaches to the same problem.
Williams score motors have a service plug that can be moved that will lock all the cams in place. I wish this option did not exist. Any Williams with this option constantly trips me up.
Bally's Score Motor design changed quite a bit over the years, depending on the style of game they were making. In a future episode, I'll dive into the control unit, which is a beautiful, complex electromechanical marvel.
This episode, however, I talk about the relatively straightforward, no-frills Bally score motor, its ease of adjustment and common issues (really the same common issue that plagues most score motors that have been sitting and transported many times without being used for a long period of time).