| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique that instantaneously discovers a fraud when replacement of a main control device is fraudulently executed. <P>SOLUTION: A game machine is configured as follows. A lock is provided on a front door of a slot machine. An opening/closing sensor 27 is configured to detect opening/closing of the lock. When a sensor command is not transmitted from a main control device 150 to a sub control device 111 during a predetermined period after confirming detection in the opening/closing sensor by the sub control device 111, the sub control device 111 executes notification by a speaker or the like. <P>COPYRIGHT: (C)2013,JPO&INPIT |
