| 摘要 |
PURPOSE:To attain progam search by means of visual observation, by providing an indicating means indicating the position of an optical pickup and a display means displaying that the optical pickup reproduces an inter-music space. CONSTITUTION:An optical pickup base 2a fitted with the optical pickup 2 is driven with an optical pickup driving device 3 comprising a motor 3a and a feeding screw 3b. Further, the optical pickup stand 2a is fitted with an arm 6a supporting a display 6. An output of an inter-recording detecting circuit is applied to one input of a logical gate 9 and an input of an oscillating circuit 8 is applied to the other input, and an output of the logical product gate 9 is ''0'' in recordings and repeats ''1'' and ''0'' in the oscillating period of the oscillating circuit 8 in the inter-music space. A display 6 is constituted that it lights with ''0'' output of the logical product gate and puts out at ''1'', and lights continuously in performing and flickers in the oscillating period of the oscillating circuit 8 in the inter-music space. |
