| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine for notifying a particular device of opening of a door body even when a power supply of the game machine is turned off. <P>SOLUTION: A frame opening detection circuit 280 is provided with an integration circuit 281, and thereby, regardless of an opening period of an inner frame 12 and a front surface frame 14, a fall period of TRG terminal voltage of a timer IC1 is made a constant period (approximately 2 ms) to normally operate the timer IC1 functioning as a single stable multivibrator, and a rising period of voltage of an OUT terminal of the timer IC1 is kept to approximately 10 ms. Therefore, when the inner frame 12 or the front surface frame 14 is opened, pulse width of a pulse signal to be outputted to a hall computer 262 which keeps operating for 24 hours is kept to about 10 ms. Thus, even when power supply for the Pachinko machine is shut down and DC voltage is supplied by a capacitor CD1, opening of the inner frame 12 or the front surface frame 14 is detectable while suppressing charge consumption. <P>COPYRIGHT: (C)2013,JPO&INPIT |
