| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a game machine capable of notifying a specific device of opening of a door body even when a power supply of the game machine is turned off.SOLUTION: When an inner frame 12 is in a closed state, a terminal plate output circuit 300a for an inner frame can ground one end of a capacitor CD7 by a switch SW 3-3. Therefore, when the inner frame 12 is closed, the terminal plate output circuit instantaneously discharges to null electrical charges stored in the capacitor CD7 while the inner frame 12 is opened. Until the inner frame 12 is opened again, the charges stored in the capacitor CD7 are constantly null, so that, even when the inner frame 12 is repeatedly opened a plurality of times in a short time, an integration circuit 281 can normally operate and stabilize a fall period of a voltage applied to TRG terminal of a timer IC1, to a fixed period (substantially 2 ms) regardless of the opening period of the inner frame 12.</p> |
