| 摘要 |
<p>PURPOSE:To easily operate a tape speed adjustment by forcedly switching the control of the rotational speed of a capstan motor from the second driving circuit system to the first driving circuit system by the switching of the second switch. CONSTITUTION:A variable register 15 for adjusting a recording tape speed is adjusted so that the prescribed signal of a standard magnetic tape 7 reproduced by a signal processing circuit system in a reproducing system state can be turned to a normal state, and the rotary speed of a capstan motor 16 is controlled so that the speed of the reproduced standard magnetic tape 7 can be regulated to a constant speed. At that time, the first driving circuit system which controls the rotational speed of the capstan motor 16 at the time of recording, can be switched to the second driving circuit system which controls the rotational speed of the capstan motor 16 at the time of reproduction, only by switching a pause switch 8, so that the adjustment of the tape speed by the above mentioned first driving circuit system and the above mentioned second driving circuit system, can be easily operated.</p> |
