| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a game machine comprising a circuit board that hardly enables fraud countermeasures to be perceived even when the fraud countermeasures are taken and that enables easy performance of an operation for checking whether the board is a normal board or a fraudulent board.SOLUTION: A ground pattern G1 formed near a corporate name 212 of a main control board 210 of a game machine is arranged in such a manner as to be slightly displaced downward in comparison with adjacent ground patterns G2 and G3.</p> |
