| 摘要 |
PROBLEM TO BE SOLVED: To provide a pinball game machine, in which the launching speed of game balls cannot be artificially changed, though the machine can be commonly used for various types of pinball game machines. SOLUTION: In a pinball game machine comprising a launching motor M1 for launching game balls and a launch control substrate 45 for controlling the operation of the launching motor M1, the launch control substrate 45 uniquely determines the working speed of the launching motor from a launch clock signalΦck received from a payout control substrate 44 to generate drive pulses (ΦA,ΦA bar,ΦB,ΦB bar). COPYRIGHT: (C)2008,JPO&INPIT
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