| 摘要 |
<p>PURPOSE:To properly control tracking with a simple constitution by adjusting the level of AFT signals. CONSTITUTION:A microcomputer 14a calculates the level difference between the tracking control signals included in given ATF error signals and mode discrimination signals, inputs the gain setting signals corresponding to this level difference to a gain control amplifier 22 to thereby adjust the gain of reproduced pilot signals. Therefore, the microcomputer 14 is given ATF signals in which the characteristics of the tracking control signals for the position of tracking are adjusted, and based on the ATF error signals, it controls the rotation of the capstan motor 34 and tracking.</p> |
