| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of instantly finding fraudulence when a main control device is replaced fraudulently.SOLUTION: When no sensor commands are transmitted from a main control device 150 to a sub-control device 111 within a predetermined period after confirming detection by an opening/closing sensor 27 for detecting opening/closing of a lock provided on a front door of a slot machine by the sub-control device 111, the sub-control device 111 performs notification by speakers or the like. |
