| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine in which a space of the signal out port in a main board is made smaller than in the previous machine. SOLUTION: The output of the control signal to three sub boards 55, 56 and 57 is performed from one common output port 44 installed on the main board 50. Thus the number of the output ports can be reduced compared with the previous machine, and the main board 50 cane be reduced in size thanks to the reduction of the ports, resulting in the material cost reduction. In addition, the sub boards 55, 56 and 57 can respectively discriminate the signal addressed to them on the basis of discrimination signals, and can execute only the individual control signals addressed to them. COPYRIGHT: (C)2004,JPO
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