| 摘要 |
PROBLEM TO BE SOLVED: To enhance noiseproof property in a main control board without increasing the possibility of illegal alteration. SOLUTION: In a game machine, a board outer peripheral part of a main control board 21 is arranged with: a game connector CN3 for outputting an intermittent drive signal to an electromagnetic component, and at the same time, for receiving a switch signal from a detection sensor; a lighting connector CN5 to output a lighting control signal to a light emitting member arranged in an appropriate position of 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, all space excepting arrangement space of electronic parts is made to be solid grounding, and at the same time, an isolation line ISO for isolating the solid grounding inside and outside 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)2009,JPO&INPIT
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