| 摘要 |
PROBLEM TO BE SOLVED: To prevent an illegal action by permitting a variable prize winning ball device to be a second state when a second detecting means outputs a prize winning detecting signal unless the first detecting means detects prize-winning and also disenabling shooting a game ball. SOLUTION: A V-prize winning judging processing is executed by MPU of a basic circuit. The V-prize winning judging processing judges whether the game ball passes prize winning number detecting equipments 6a and 6b or not. In the meantime, it is also judged whether a period is the V reception valid one or not so as to judge invalidity in case except the reception valid period. That is, invalidity is judged when prize winning exists in a specified prize winning part in the case except the reception valid period. Therefore, an abnormality is judged unless the ball passes the prize winning number detecting equipments 6a and 6b before in spite of prize winning in the specified prize winning port, an alarm flag is set, the variable prize winning ball device 3 is made to be the second state and game ball shooting is disenabled. Thus, the illegal action is prevented. |
