| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal lamp control circuit inexpensively and easily making a specific signal lamp light on when the signal lamp control circuit fails by providing a by-pass circuit and a selection mechanism in the signal lamp control circuit. SOLUTION: Only a specific signal lamp is enabled to be lit on when a failure occurs in the signal lamp control circuit by providing the by-pass circuit by-passing the signal lamp control circuit and incorporating a back contact of a common cut relay and the selection mechanism making only the specific by-pass circuit effective to the by-pass circuit in the signal lamp control circuit having a signal lamp control relay and a common cut relay and controlling lighting on or lighting off of the signal lamp. COPYRIGHT: (C)2010,JPO&INPIT
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