| 摘要 |
PROBLEM TO BE SOLVED: To achieve an putting out of prize balls correctly in pachinko machines. SOLUTION: A main board 27 is provided with a backup function (backup power source 27d and NMI program) and a prize ball control board 26 with none and hence, no difference posing a problem occurs between the main board 27 and the prize ball control board 26 in substance upon the return from the interruption of the power source thereby dispensing with detailed arrangements in the command transmission rule. This also enables the continuation of normal operation by data on the side of the main board 27 even when electrostatic noises, radio wave noises or the like cause the prize ball control board 26 to be reset and lose data thereof thereby achieving a remarkably high resistance to noises.
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