| 摘要 |
PURPOSE:To improve safety, by so constitution the titled circuit that it is enabled to light a head lamp by operation of a manual switch at the time of a trouble of a relay for the head lamp, in a head lamp circuit having a control circuit for lighting and putting out lights making the head lamp light automatically according to light and dark surroundings. CONSTITUTION:When surroundings become slightly dark bacause of evening at the time of turning a mode into an automatic one by turning an automatic switch S4 of a lighting switch S3 ON, a small lamp lighting signal is put out from a control circuit 2' for lighting and putting out lights based on an output from a light sensor 1 according to brightness at that time, a relay 8 is energized and a small lamp 5 is lit. In addition to the above, when a lighting signal of a head lamp is put out by becoming the surroundings dark further, relays 15, 17 are energized and the head lamps 3, 4 are lit. On the one hand, when manual head lamp switches S5, S6 are connected with a main side contact point M, the head lamps 3, 4 are lit similary. |
