| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which, even if rotational abnormality of a drum occurs, can quickly respond to the abnormality to perform smooth operation.SOLUTION: A game machine, only when determining that a stepping motor is in a two-phase excitation state from a counter value of an excitation output counter, increments an error timer, and when the error timer reaches 0 and the time is up without detecting a rotation reference position of the reel, that is, when detecting 256 times of the two-phase excitation states, the game machine determines a drum has rotational abnormality because the rotation reference position of the reel is not detected during one rotation of the reel. When detecting the rotational abnormality, the game machine reactivates the drum where the rotational abnormality is detected. During the reactivation, all drums including the drum where the rotational abnormality is detected cannot accept a stop instruction and are invalidated. |
