| 摘要 |
PURPOSE:To indicate the receiving level in the radio reception mode and the tape residual length when a deck is used, by displaying the receiving signal level of a radio receiver and the digital value of the residual length of a tape deck at the same display device via a data selector. CONSTITUTION:The tuner part TU of a radio receiver is controlled by a tuner controller CONT1, and the output of an intermediate frequency part IF is applied to an audio amplifier AA and a speaker SP via a wave detecting part DISC. At the same time, the signal level is converted into the data RA-RD via an A/D converter ADC. A tape deck part TD is controlled by a deck controller CONT2 and connected to the amplifier AA via a switch SW1. At the same time, the part TD detects the pulse deteced through a relay RL and delivers the tape residual data TA-TD. A data selector SEL is selected by an SW2 interlocking the SW1. A display EX displays a signal quantity data in the radio reception mode and indicates the tape residual length when the deck is used respectively. |
