| 摘要 |
PURPOSE:To issue an alarm in accordance with an abnormal state, and also to amtomatically switch to other function, by detecting the abnormal state of a voice signal generating means selected by a function switch. CONSTITUTION:When a push-button switch is pushed, a driving device 12 generates a function driving signal, and an input/output line of a record player 2 is selectively connected to function switches 6a-6c. As a result, a record player 2 starts a record performance. In case when a record is not set onto a turntable when said line has been selected, an abnormal state detecting device 10 detects that there is no record, and generates an abnormal stte signal. Therefore, an alarm device 11 generates an alarm sound for a prescribed time, also the driving device 12 generates newly a function driving signal, the switches 6a-6c are switched, and an input/output line of an FM tuner 5 is selectively connected. |
