| 摘要 |
PROBLEM TO BE SOLVED: To prevent the fraudulence such as fraudulent change of a CPU, etc. mounted inside a game machine when a game parlor is closed or when the game machine is carried. SOLUTION: An abnormality detecting means (a sensor 51) receives the electric power fed from a main power supply 331 or a spare power supply 332, and always monitors whether the CPU is mounted on a control board or not. If the abnormality detecting means (the sensor 51) detects that the CPU is detached from the control board, the abnormality detecting means outputs an abnormality detection signal to an announcing means (an LED 53) to announce the abnormality. The game machine also has a retaining circuit driven by the spare power supply 332 for retaining the abnormality detection signal, so that the state can be retained till the CPU is reset if the CPU is once detached. COPYRIGHT: (C)2006,JPO&NCIPI
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