| 摘要 |
PROBLEM TO BE SOLVED: To prevent fraudulent actions (especially the ones accompanied by power OFF/ON) to a game machine. SOLUTION: The power source part of a slot machine is provided with a power interruption detection part 203d which detects the stoppage of power supply by a power unit, an alarm sound generator 203b which issues alarm sound at the time of detecting the stoppage of the power supply, a standby power source 203c for driving the alarm sound generator, and a power source part case body 203 which tightly seals and houses the power interruption detection part, the alarm sound generator and the standby power source, and the power OFF of the game machine is reported to the surroundings by the alarm sound. Since the alarm sound generator is housed inside the power source part case body and is not made easily accessible and the reset switch of the alarm sound or the like is not provided, the alarm can not be invalidated and the power OFF of the game machine is surely reported. COPYRIGHT: (C)2006,JPO&NCIPI
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