| 摘要 |
PROBLEM TO BE SOLVED: To provide a pachinko game machine which can store and preserve correct control information by detecting the state of putting out game balls even under the shutdown of the power source voltage. SOLUTION: When a drop in the power voltage from V1 down to V is detected with a power source monitoring circuit, the power source monitoring circuit outputs as power voltage shutdown signal S to individual boards 15 and 17. In the main board 15 and a put-out control board 17, a backup processing, the operation of detecting game balls with a ball counting sensor is executed repeatedly only for a detection processing time T2. When the putting out of the game balls is detected, in both the boards 15 and 17, the total of prize balls for the main board and put-out control board stored in a RAM is subtracted and reloaded. This enables the storage and preservation of the total of the prize balls correctly into the RAM after the shutdown of the power source. COPYRIGHT: (C)2008,JPO&INPIT
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