| 摘要 |
PROBLEM TO BE SOLVED: To conduct fairness between the profits of a game saloon and a player and to play a sound game by preventing a profit imparting ratio set by the game saloon from being modified illegally. SOLUTION: Within a game machine casing, an electronic circuit board (main board 12) having electronic parts mounted thereon and a setting switch 14 by which the profit imparting ratio to the player can be set to a plurality of stages are arranged. In the neighborhood of the electronic circuit board (main board 12), an openable and closable housing box 15 having a locking mechanism (locking device 19) is provided. In the housing box 15, the setting switch 14 and a wiring (connection harness 29) for electrically connecting the setting switch 14 and the electronic circuit board are housed to prevent connection of an illegally altered apparatus from outside of the housing box 15 to the setting switch 14 and the wiring. COPYRIGHT: (C)2003,JPO
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