| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine that can detect opening of a board case. <P>SOLUTION: In a predetermined position of a storage case, a storage case detected part formed from a conductor is provided. In a position corresponding to the storage case detected part on a sub control board, a spiral part, where one part of printed wiring is formed in a spiral conductor pattern, is provided. The sub control board includes: an oscillation circuit part for supplying current at a predetermined frequency to the spiral part; a counter part for counting the frequency per predetermined time in the spiral part; and a storage case opening determination means of determining whether the storage case has been opened. The storage case opening determination means determines that the storage case has been opened when a count value of the counter part is out of a predetermined range. <P>COPYRIGHT: (C)2013,JPO&INPIT |
