| 摘要 |
PURPOSE:To discover the cause of the trouble caused from a play control circuit and an external detecting element at early times and cope with the trouble properly at early time, on a slot machine. CONSTITUTION:On a main substrate, a monitor lamp (e.g. monitor lamp 153) whose one edge is connected with each external detecting element (e.g. start switch 50) through an output terminal group (e.g. signal input terminal 81) and the other edge is connected with an external electric power source through an input/output terminal (e.g. subelectric power source terminal 82) is installed. |
