Stepper Units - Other Important Steppers

In addition to the typical units described above, many bingos have other specialized units in the backbox such as motorized units to operate moving screens and turning corners features. These units have electrical contacts, etc, in addition to the motor, to activate associated feature circuitry.

The Sequence and Winner Unit

the sequence and winner units are only used in screen games and are responsible for the section scoring.



The reason these exist is due to the way the sections are scored in a screen game. All you need is three (sometimes only two) numbers lit anywhere in the section to get a payout. This is significantly different from the in-line scoring, which requires that adjacent numbers be lit.



In in-line scoring, clever use of the search relays lets the game scan an entire line at once, and if three adjacent seach relays close, the game stops and pays out. In section scoring, the game stops whenever a single number in a section is lit, and then the sequence and winner units take over and count how many numbers in the section are lit by examining each hole one at a time.
The sequence unit is stepping up and looking at the holes, and if a ball is in the hole, the winner unit is stepped up. If the winner unit steps up at least three times, the game pays out.

The Magic Screen Feature Unit