| 摘要 |
<p>PURPOSE:To ensure a cam drive and stop position with high accuracy by simple constitution by using a motor drive position detecting means and a mode detection means altogether to detect the drive stop position of a mode transfer cam. CONSTITUTION:When the reproducing mode is selected by a mode selection means in the stop mode, a motor control means calculates a difference between the stop mode and the reproducing mode and drives a motor 200 while the direction of rotation and the number of revolutions of the motor 200 are formed into a control signal. When the motor 200 is driven, a sub-cam and a main cam are driven respectively to a prescribed direction. When the motor is driven, a magnet 206 comes to the opposite position of a sensor 208, an output from the sensor 208 stops the motor 200 to form the prescribed reproducing mode. When the stop mode is selected by the mode selection means next, the motor is reversed and the sub-cam and the main cam are reversed. Then the magnet 206 comes to the position opposite to the sensor 208 and the motor 200 is stopped to form the stop mode.</p> |
