| 摘要 |
<p>PURPOSE:To enable to lead in the desired information quickly, by inputting the output of the non-signal detection means and the preset means to the operation means and producing the reproduction with release of the channel selection state when the operation output is zero. CONSTITUTION:In the preset means constituted with the switch 9 and the pulse generation circuit 10, arbitrary number of pulses are fed to the up and down counter 8 with the number of switchings of the switch 9, and the count number is displayed on the display tube 11. On the other hand, the signal induced to the head 1 enters the up and down counter 8 from the non-signal detection circuit 7 and is counted. Thus, the count value of the up and down counter 8 is subtracted, the display on the display tube 11 is sequentially reduced, and the force of the plunger 13 absorbing the lever 14 is changed instantly when the display is zero, the coupling state of the lever 14 with the lever 15 is released, and reproduction state can be obtained when the play selection state is ended.</p> |
