| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of immediately finding out the act when a main control device is fraudulently replaced. SOLUTION: When a sensor command is not sent from the main control device 150 to a sub-control device 111 in a predetermined period after the sub-control device 111 confirms that an unlocking/locking sensor 27 for detecting unlocking/locking of a lock provided on the front door of a slot machine detects unlocking/locking, announcement is made by the sub-control device 111 over a loudspeaker or the like. COPYRIGHT: (C)2010,JPO&INPIT
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