| 摘要 |
PROBLEM TO BE SOLVED: To inspect a signal outputting state outputted from a game control substrate to another control substrate even in a state where the game control substrate and another substrate are not cable-connected. SOLUTION: A C-MOSIC such as 74HC244 is used as the output buffer circuits 62, 63, 69 and 71 of a main substrate 31. Then, the control terminal of 74HC244 is fixed to a ground level. Consequently, the outputs of the circuits 62, 63, 69 and 71 are not logical-inverted and the outputs are defined at a high level or low level. A light emitting body control substrate 37 uses the C-MOSIC such as 74HC244 as an input buffer circuit 373. Then, the control terminal of 74HC244 is fixed to the ground level. |
