| 摘要 |
<p>PURPOSE:To output an electric signal matched with the trace time of a head and to observe the adjusted condition of a present mechanisms by means of an oscilloscope by reproducing a tracking signal recorded on a tape with high precision and detecting a relative position between the head and a recording track in the recording position of respective tracing detection signals of the mechanism to be adjusted. CONSTITUTION:The head 11 wound to the magnetic tape 1 is fitted to a rotary cylinder 12, and a synchronizing signal detection circuit 13 detects a synchronizing signal on a track. A first tracking detection circuit 14 detects a pilot signal by the output of the circuit 13, and the relative position of the head 11 and the track is detected. A selection circuit 15 selects only one prescribed part in the outputs of the circuit 14, and a second tracking circuit 16 receives the output of the circuit 15 and detects the pilot signal. With using the output of the circuit 16, a tape driving means 17 controls the travel of the tape, and the adjusted condition of the mechanism is observed with the output of the circuit 14 as the output of the travel state of the track.</p> |
