| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of storing history information on the opening of a door of a casing of the game machine in a plurality of storing means even if the power supply of the game machine is turned off. SOLUTION: The game machine includes a front door opening/closing monitoring sensor 56 with a first switch 561 and a second switch 562, and a door monitoring unit 58 connected to a subordinate control circuit 721 for storing history information on the opening of the front door. The first switch 561 outputs a first door opening signal when the front door is open. The first door opening signal is transmitted to a hall computer via a main control circuit 711 and an external collective terminal board 59. The second switch 562 outputs a second door opening signal when the front door is open. The door monitoring unit 58 stores history information based on the second door opening signal. COPYRIGHT: (C)2009,JPO&INPIT
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