录像机的走带是通过电子电路自动控制的。当磁带倒带或走带到首、尾时,机器会自动停止工作,关键在录像带的带头和带尾的一段透明引带上。位于盒带仓前面的凹口内有一小光源,它是供带与收带光电耦合器的照明源。在正常走带时,由于录像带带 VTR tape is automatically controlled by the electronic circuit. When the tape rewind or take to the first and last, the machine will automatically stop working, the key in the video tape head and tail with a section of transparent tape. There is a small light source in the notch in front of the cassette holder, which is the source of illumination for the tape and tape optocouplers. In normal travel, due to the tape