PROBLEM TO BE SOLVED: To provide an irregular game judging apparatus which simplifies an installation work while preventing electric adverse effect from having on the body of the apparatus by allowing installation of the apparatus on the body of a pachinko machine in a state being cut electrically without setting it on the side of a ball shooting section of the pachinko machine. ;SOLUTION: This irregular game judging apparatus 1 is constituted of an input part 4 to be connected in the course of a wire by which a disqualified ball-counting switch 2 is connected to a host computer 3 for management in a state being cut electrically, a control section 5 which counts and stores the number of pachinko balls discharged from individual pachinko machines while comparing the resulting counts with a specified value calculated previously from the prescribed number of shot pachinko balls for each section to judge whether irregular game by signal shooting occurs or not and an output section 9 for outputting the results of the judgment of the control section 5.;COPYRIGHT: (C)1997,JPO
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