| 摘要 |
PROBLEM TO BE SOLVED: To provide a game system for improving accuracy in the discrimination of communication abnormality between a game machine for renting game balls and a card unit in the game system equipped with the game machine and the card unit. SOLUTION: On the basis of a BRQ signal (ball rent request signal) from a card unit 2, an EXS signal (rent signal showing renting of game balls) is outputted to the card unit 2 by a rent control means 70 of a Pachinko machine 1, and after the lapse of a first prescribed time T1 (30 ms) just after the output start of this EXS signal, when the output state stop of the BRQ signal from the card unit 2 is detected after the lapse of a second prescribed time T2 (50 ms) longer than the first prescribed time T1, communication abnormality is judged.
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