| 摘要 |
PURPOSE:To prolong the life of a battery by mechanically displaying the operation state of a power switch in a liquid crystal display part without consuming a current. CONSTITUTION:Respective operation states of the power switch 12 are displayed by the power switch 12, the liquid crystal display part 14 and a movable piece 17 which is arranged so that one end extends to the display part 14 by interlocking with the power switch 12 without consuming power. When the power switch 12 is operated, the movable piece 17 interlocks with it and moves in the display part 14. The operation states of the power switch 12 can be checked in the same way as checking the display part 14 with installing a receiver in a waist belt or in a chest pocket as it is, and power is prevented from being consumed for it. Thus, the life of the battery can be prolonged. |
