| 摘要 |
PURPOSE:To enable to drive the arm accurately, by separately performing the drive of turn table and that of the arm with different motors. CONSTITUTION:The turn table 2 mounting a disc 1 is driven with a turn table drive exclusive motor 20. On the other hand, the output of a pulse motor 27 driving the arm 4 is delivered to a pulley 25 via a pulley 28 and a belt 26, and a wire 22 is given to pulleys 21, 24 to drive the carriage 3, the bottom of the carriage 3 is fixed to the wire 22, and the arm 4 is fitted to the carriage 3. At the playback of the pulse motor 27, the frequency generating pulse of the turn table motor 20 is amplified and frequency-divided for the drive, allowing to accurately drive the arm 4. |
