| 摘要 |
PROBLEM TO BE SOLVED: To securely detect only illegal action by an illegal operator as abnormality without detecting credit as abnormality, and stop supply of medals when abnormality is detected. SOLUTION: A medal detection signal 5, a medal supply demand signal 7, a medal charging signal 11, a medal IN signal 12, and a medal dispensing signal 13 are outputted from a slot machine 1, these five signals are inputted to a control means 14 included in the slot machine 1, the number of medals is controlled based on the number of medals coming from the slot machine 1, the number of detected medals, and the number of credit medals through the control means 14, an abnormality signal 15 is outputted when abnormality is detected to display abnormality, and medal supply demand is cut to stop supply of medals.
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