| 摘要 |
PROBLEM TO BE SOLVED: To enhance noise resistance in a main control board without increasing possibility of illegal modification. SOLUTION: On an outer peripheral part of the main control board 21 is arranged with: a game connector CN3 for outputting an intermittent drive signal to an electromagnetic component, while receiving a switch signal from a detection sensor; a lighting connector CN5 for outputting a lighting control signal to light-emitting members arranged in appropriate positions in a game machine; control connectors CN1 and CN4 for outputting a control command to sub control boards 24 and 27; and a power supply connector CN2 for receiving a power supply voltage from a power supply board 20. In the main control board, the whole space excluding the space for arraying electronic components is made to be a solid ground pattern, while, an isolation line ISO for separating the solid ground pattern inside and outside of a circuit board is provided excepting a current exit part EXT adjacent to the power supply connector CN2, and all connectors are arranged outside the isolation line. COPYRIGHT: (C)2011,JPO&INPIT
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