| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine for monitoring rotation abnormality in a rotating drum without imposing a burden of program capacity on a control unit of a game machine and without reducing monitoring precision. <P>SOLUTION: Only in determination of a two-phase excitation state from a counter value by an excitation output counter, an error timer is added. When the error timer reaches 0 and time-up comes without detecting a rotary reference position of a reel, more specifically when two-phase excitation states for 256 times are detected, the reel rotary reference position cannot be detected regardless of one rotation of the reel, thus determining occurrence of rotation abnormality. <P>COPYRIGHT: (C)2013,JPO&INPIT |
