| 摘要 |
PURPOSE:To confirm easily the setting state of an alarm by inhibiting the generation of an alarm setting confirmation sound when a slide switch for sound switching is at a neutral position. CONSTITUTION:When an alarm switch 6 is closed at a set time, an alarm output is generated at a terminal 3b of an integrated circuit 3, and supplied to a terminal 4b or 4c through the slide switch 1. A switch 7 is operated associatively with the switching of the slide switch 1 and connected to a terminal 4a regardless of which of the terminals 4b and 4c the slide switch 1 is connected to. When an alarm is set with a sound stop switch 2, the integrated circuit 3a generates one pulse to generate the alarm setting confirmation sound. When the slide switch 1 is at the neutral position, the switch 7 is also at a neutral position, so no alarm setting confirmation sound is generated even at the setting operation of an alarm. |
