| 摘要 |
<p>PURPOSE:To improve both reliability and operability of a magnetic reproducer, by detecting a switch from a reproduction mode obtained by a scan of a reproduction button to an operation performed by a scan of a catch and setting a reversible counter at the prescribed value during switching. CONSTITUTION:Rotary magnetic heads 1 and 2 are revolved with frame frequencies by a servo circuit 3. A magnetic tape 4 is taken up to a take-up reel 6 from a feed reel 5, and a control circuit 20 controls the traveling of the tape 4. The output of a reversible counter 51 is applied to the circuit 20 via a decoder 61. Both revolving direction and revolving angle of a catch 34 of a joy stick control 30 are detected by photocouplers 36 and 37 respectively and then supplied to the counter 51 as a count input. A mode switch 23 is switched to the side of the control 30 from a reproduction mode obtained with push of a reproduction button. Thus a preset signal is supplied to the counter 51 from the circuit 20 via a line 24, and the counter 51 is set at the prescribed value. A normal reproduction state is obtained from the prescribed value of the counter 51.</p> |
