To report the failure of a drum to a person of a hall promptly by reporting that effect when the balance of the rotation of the drum is lost.
In a slot machine for executing a performance by moving a plurality of drums on the basis of the result of internal drawing in a predetermined period, the position of a stop outcome is stored before starting the drum performance, whether an index is detected is monitored for each of the plurality of drums, the position of the drum obtained by adding the number of the driving pulses of a motor on the basis of the stop outcome is obtained when the index is detected, and it is compared with the position of the drum based on the detection of the index. A predetermined abnormality pointer is increased when a difference between them is larger than a predetermined first threshold, and an error signal meaning the fault occurrence of the drum is output when the abnormality pointer is larger than a predetermined second threshold.
FUJIWARA MASAKAZU
SAKAI MASATO
IMAI TAKAO
ONO YOICHI
WADA MANABU
TAKEUCHI KENICHI
SATO NAOYUKI
KATAYAMA KAZUYA
NOGUCHI SATORU
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