Search Disc (bingo)
A large unit inside the game that is used to detect winning
combinations. It works by controlling a set of five or more
search relays. As the unit operates, it closes the search relays
when balls are in the particular holes it is looking at. If
the correct number of search relays are closed, the search stops
and payout circuits are activated. After payout completes, the
search continues for more paying combinations. Higher payouts
can actually get broken into two pieces - payout for a 3-in-line,
a pause, then the remainder of the payout for a 4-in-line or
higher.
