| 摘要 |
PURPOSE:To prevent an indicator from displaying wrong indication by a method wherein a switching element is continuously turned ON, and a transister for indicator indicating a temporary stoppage of driving which grounds a base of an indicator driving transister is provided. CONSTITUTION:When a lamp 5 is broken while the lamp 5 is turned OFF, a transister 4 is OFF, and a main switch 7 is ON, a voltage at a connecting point (a) is risen up to a high voltage, a transister 10 is made ON, and a breaking indicating lamp 12 is turned ON. When a stop lamp 2 is turned ON, a signal for indicator displaying a temporary stoppage of driving is supplied to a base of a transister 14, accordingly, the transister 14 is made ON, a voltage of the base of the transister 14 is lowered, and a voltage of the connecting point (a) is also lowered. Thereby, the transister 10 is not turned ON, so the breaking indicating lamp 12 is turned ON, thereby the wrong indication is not indicated. |
