THEATRE OF MAGIC (Bally) opto board

NewOpto Circuit Board used on
Bally THEATRE OF MAGIC pinball machine Magic Trunk unit.

New board has four optical switches that help locate the
position of the trunk as it rotates during game play. The trunk's
central shaft has an interrupter disc with one slot cut in
it. As this slot passes through the optical switches, the game
knows when to stop the trunk assembly.

Reference:

• A-19749