| 摘要 |
PROBLEM TO BE SOLVED: To provide a drum-rotating game machine, which is developed based on the background, having improved noise-proof performance and being little affected by noises, such as external electromagnetic waves. SOLUTION: On a grounding layer of a stage-managing control board 60, that is a multilayered wiring board arranged on the body of a drum-rotating type game machine, there are formed a second grounding region 62b that is connected to the grounding part of boards such as a liquid crystal control board and the like, arranged at a door part of the game machine and a first grounding region 62a that is electrically insulated from the second grounding region 62b in the stage-managing control board and is connected to an earth part and the like of an integrated circuit element mounted on the stage-managing control board 60 as the relevant board. COPYRIGHT: (C)2006,JPO&NCIPI
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