| 摘要 |
<p>PURPOSE:To cut off reproducing sound by a series of timer operations of plural steps including reproduction and recording at the time of recording, by conforming the muting of an amplifier only with a signal representing a recording operation from a program timer device. CONSTITUTION:Programs set via the setting circuit 12 of a program time part 11 in a receiver 1, for example, the program I of an FM broadcast recording operation including a start time and a completion time, respectively, the program II of the reproducing operation of a CD4, and the program II of an AM broadcast recording operation, etc., are stored in a memory circuit. When the start time of the program I arrives, a control circuit T supplies a power source to the amplifier 2, a tape deck 3, and a CD player, etc., via a switch circuit 8, and sets the receiver 1 at the designated frequency of FM, and also, supplies a control signal corresponding to the recording to the control circuit A of the amplifier 2. In such a way, a muting circuit 21 is turned on by the circuit A, and the recording is commanded to the deck 3 via a function switching circuit 22. The same operations are performed on the programs II and III, and the reproducing sound can be cut off at the time of recording.</p> |
