| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine that can monitor the replacement of a control board mounted in a casing for the commitment of a fraudulent act. SOLUTION: The game machine has a structure to put out in response to prescribed conditions and results on the basis of the result of a lottery by a lottery means and has a casing 102 incorporating a main control board controlling and managing a lottery process and a putting-out control, a protective case 701 enclosing the main control board 700 in the casing 102, a case opening and closing sensor VS capable of sensing a vibration occurring when the protective case 701 is opened by the protective case 701 and/or the casing side in which the protective case 701 is installed. The case opening and closing sensor VS senses the opening of the protective case 701 and outputs an alarm signal to a management computer of a game parlor. COPYRIGHT: (C)2005,JPO&NCIPI
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