| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic circuit block making it hard to modify a control CPU and a MAIN circuit board through which important signals come and go in a game machine such as a pachinko machine or a pachinko-slot machine. SOLUTION: A protective sheet 250 is put on and stuck and fixed to the surface of a main board 210. Since a coming-off portion 255 is smaller than the external form of a connector 216, there is no clearance between them and it is impossible to use an electrical trick on it. Protective ribs 230a are formed in the direction of the main board 210 (namely downward) from the end face of an opening 235 as if to follow the external form (external extension) of the connector 216 (see Fig. 34(A)). The terminal ends of the protective ribs 230a butt against (contact) the main board 210, separated by the protective sheet 250, and can completely avoid fraudulence (Fig.(B)). COPYRIGHT: (C)2006,JPO&NCIPI
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