| abstract |
(57) [Summary] [PROBLEMS] To prevent malfunction due to a drop in sensor drive voltage. SOLUTION: In a game machine provided with game control means for controlling a game based on detection signals of game ball detection sensors 10 to 12 provided in a game area, an operation voltage of the game ball detection sensors 10 to 12 is monitored. Sensor voltage monitoring means 3 4 and a game control regulating means 2 for regulating game control of the game control means when a predetermined voltage change of the game ball detection sensors 10 to 12 is detected by the sensor voltage monitoring means 34. 4 is provided. |