| 摘要 |
<p>PURPOSE:To improve an operability and to facilitate the confirmation of a level by switching a voice level and a reproducing FM level by means of an automatic changeover switch and displaying the display of a level meter at the time of adjusting a reproducing FM tracking angle. CONSTITUTION:The outputs of a voice amplifier 1 and a reproducing FM amplifier 2 to be fluctuated by a tracking angle of a video magnetic recording and reproducing device are inputted to an automatic changeover SW 3. By the changeover SW 3, at an ordinary time, the voice output of the amplifier 1 at an A side is selected, and the voice level is displayed on a level meter 4. At the time of the traveling and recording of the tape of the device, a reproducing FM signal 6 is inputted to an adjustment change quantity detector 7, and even when a tracking adjusting signal 8 is inputted, the changeover SW is automatically held at the A side. When the detector 7 detects the change of the adjusting signal 8, the changeover SW 3 is switched, and the level of the reproducing FM signal 6 is displayed on the level meter 4.</p> |
