| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem of a conventional solenoid drive circuit wherein packaging components for a circuit board which are hard to be detached are often damaged or patterns are often exfoliated. SOLUTION: In this game machine, the solenoid drive circuit 34 comprises an FET (Field Effect Transistor) 35 with an overcurrent preventing mechanism. The FET 35 is provided with the overcurrent protection circuit 36, when solenoids 62a-62c, or loads, are short-circuited, detecting the generated overcurrent, suppressing the current flowing between a drain D and a source S and preventing the damage of the FET 35 and the circuit board in its circumference. When the solenoids 62a-62c are short-circuited during Pachinko game, this game machine is so constituted that the current flowing between the drain D and the source S is suppressed by the overcurrent protection circuit 36. COPYRIGHT: (C)2004,JPO&NCIPI
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