| 摘要 |
PROBLEM TO BE SOLVED: To improve a noise proofing property even when a wiring pattern for a control circuit and the wiring pattern for a power source are crossed, and to easily design patterns. SOLUTION: Formation is performed separately for the wiring pattern 13 for the control circuit for connecting the respective ground terminals G1-G4 of a microcomputer 2, a ROM 3 and a RAM 4, and the wiring pattern 14 for the power source for connecting the respective ground terminals G5-G7 of the power source 6, plural connectors 7-10 and ICs 11 and 12 for respective interfaces. Also, the wiring pattern 13 for the control circuit and the wiring pattern 14 for the power source are connected by the pattern 15 for connection in a bound shape at one part.
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