| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can attempt the suppression of a fraudulent act.SOLUTION: The game board 30 of a Pachinko machine includes various ball entering means such as a general prize port 31 and various ball entering detection switches such as a prize port switch 221 which detects a game ball entering the ball entering means. The prize port switch 221, etc. are connected with a main control device, output the signal of a first level during the non-detection of the game ball, and output the signal of a second level during the detection of the game ball. Further, the main control device regularly monitors the signal level inputted from the prize port switch 221, etc., and decides the presence of the ball entering the general prize port 31, etc. based on the signal level. Moreover, the main control device decides whether the continuation period of the signal of a predetermined level which may be inputted from the prize port switch 221, etc. during the detection of the game ball, exceeds a defined period set beforehand to thereby decide abnormality of the signal inputted from the prize port switch 221, etc. |
