| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit board structure which can prevent the illegal loading or unloading of specified electronic components such as a ROM of a game machine. SOLUTION: The main control board 100 of a slot machine 1 is equipped with a turning motor 31, a rack bar 33 which is reciprocated with the turning motor through a rack pinion mechanism and can move across the ROM 21 up to the position that allows the prevention of the loading or unloading of it, a plurality of guide support members 34, 35 and 36 which get the rack bar 33 inserted into it to be guided and supported in one direction, all on a substrate. The rack bar moves to the position that allows the blocking of the loading or unloading of the ROM associated with the interruption processing for the power shutdown with the main switch 50 off, thereby accurately preventing a fraudulence such as the exchange of a rear ROM at the midnight or outside the business hours. COPYRIGHT: (C)2008,JPO&INPIT
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