| 摘要 |
PROBLEM TO BE SOLVED: To limit an influence to partial peripheral boards, and to prevent a spread to the entire part of a plurality of peripheral boards when data transmitted because of, for example, an influence of noise in one portion of a loopback communication path used in a game machine change halfway.SOLUTION: A branch part 45 and a dummy circuit 44D are provided in a loopback communication path, and an error-prone peripheral board 44-2 is separated from the loopback path. Even if an error occurs in wiring W, the influence can be limited to the peripheral board 44-2. |
