| 摘要 |
PROBLEM TO BE SOLVED: To detect the abnormal operation of a random number generation part provided in a game machine and to discriminate an abnormal operation part in the random number generation part. SOLUTION: A pachinko game machine PM is constituted of a random number clock generation circuit B51, clock count circuits B81-B84, a pattern drawing means B35 and a pattern display device 28, and is provided with: an input circuit part B40 for outputting a first abnormality signal when it is detected that input signals from the random number clock generation circuit B51 are not pulse signals; an overflow signal output circuit B97 for outputting a second abnormality signal when it is detected that the input signals from a 4th clock count circuit B84 are not prescribed count signals outputted at every prescribed count cycle; and a control part 740 for judging the abnormal operation of the random number clock generation circuit B51 on the basis of the first abnormality signal and judging the abnormal operation of the 1st-4th clock count circuits B81-B84 on the basis of the second abnormality signal. COPYRIGHT: (C)2006,JPO&NCIPI
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