| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of easily finding out that a fraudulent main control board is attached. SOLUTION: A main control board 1 and a presentation control board 2 have a power supply time measuring means 11 or 21 for measuring the power supply time from the loading of the power supply of the game machine to the shut-off of the power supply, and a measured power supply time storing means 12 or 22 for storing the power supply time measured by the power supply time measuring means 11 or 21 respectively. The main control board 1 outputs the measured power supply time stored in the measured power supply time storing means 12 of the main control board to the presentation control board 2. The presentation control board 2 compares the measured power supply time input from the main control board 1 with the measured power supply time stored in the measured power supply time storing means 22 of the presentation control board 2, and if there is a difference between the two values of measured power supply time, the difference is announced. COPYRIGHT: (C)2008,JPO&INPIT
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