| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the unauthorized alteration of a control program. SOLUTION: Inside a case body 11 of a slot machine 10, a main board 24 which is a control circuit device is disposed. The main board 24 is housed in a main board housing case 25, a CPU 30 and a ROM 31 are attached to the main board 24, and the ROM 31 is freely detachably attached to the main board 24. A switch 40 is attached to the main board 24, and when the ROM 31 is attached to the main board 24, the switch 40 is turned on by the ROM 31. The main board 24 is connected to a monitoring circuit board 56, and the monitoring circuit board 56 controls the drive of an LED 57 on the basis of the input signal of the switch 40 from the main board 24. The monitoring circuit board 56 is supplied with power and driven by a power source 58 for monitoring. COPYRIGHT: (C)2005,JPO&NCIPI
|
