| 摘要 |
PROBLEM TO BE SOLVED: To block the acquisition of an illegal prize winning based on a dummy prize winning ball detecting signal artificially prepared by using an external switch or the like. SOLUTION: While using a prize winning ball detecting switch circuit 31 capable of making different a regular prize winning ball detecting signal (periodical prize winning ball detecting signal) and a dummy prize winning ball detecting signal, a main controller 32 can discriminate the dummy prize winning ball detecting signal by receiving a signal from the switch circuit 31 and when the dummy prize winning ball detecting signal is inputted, it is reported to the outside by reporting means 33a, 34a and 35a or following gift ball processing or the like is suppressed. |
