| 摘要 |
PURPOSE:To restore the current mode to the original notice mode automatically by selecting the notice mode for a prescribed time set by a timer means from one notice mode to other notice mode. CONSTITUTION:A control section 5 controls an LCD drive circuit 11 and a notice mode changeover time is displayed on an LCD 12 and a 2nd timer 16 counting a switching time of the notice mode is started. When a reset switch 14 is kept depression for 3sec or over in this state, a signal is fed to the control section 5 from a 1st timer 15 and the control section 5 increases the count time of the 2nd timer 16 by 15min. Moreover, the LCD drive circuit 11 in this case controls to display the switching time of the notice mode increased by 15min onto the LCD 12 thereby restarting the 2nd timer 16. Thus, a disadvantage caused by not selecting a proper notice mode is avoided.
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