| 摘要 |
PROBLEM TO BE SOLVED: To provide a pachinko game machine capable of correctly delivering undelivered game balls caused by an abnormal power supply, after the power supply is recovered. SOLUTION: The number of undelivered prize balls stored in an undelivered prize ball number memory part 803 is updated sequentially based on the result of detection by winning detecting means 110, 112 and 119 and the result of detection by ball delivery detecting means 138a and 138b. When the voltage of the outside power supply becomes lower than a prescribed value, the power supply of the undelivered prize ball number memory part 803 is driven by a backup power supply 802 and the rewriting of the memory contents is prohibited, so that the memory value is held until the voltage of the outside power supply becomes the prescribed value or higher. COPYRIGHT: (C)2004,JPO
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