| 摘要 |
PURPOSE:To simplify the circuit constitution and to reduce the cost, by digitally displaying the channel number of a plurality of preset channels with one display device. CONSTITUTION:A decoder 22 converts on/off of channel switches 6-10 to a segment driving signal of a display device 21. The frequency stored in the channel memory is digitally displayed on the display device 21 with outputs Seg1-Seg3 of a decoder 20 by depressing arbitrary channel switches 6-10. The channel number is displayed on the display device 21 with the output Seg4 from the decoder 22 corresponding to the channel switch depressed at the same time. |
