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盒式录像机(VCR)中两个最重要的组件是主导轴马达和磁头鼓马达。图像和声音质量决定于这两个马达的精确工作,它们受伺服电路控制。 为了探寻与马达有关的问题的故障,必须知道所连伺服电路的功能,因为马达组件通常包括一些伺服元件。有时不容易决定马达是功能失常的原因还是伺服电路有故障。
The two most important components in a VCR are the capstan and head drum motors. The quality of the image and sound depends on the precise operation of the two motors, which are controlled by the servo circuit. In order to find faulty motor-related problems, it is necessary to know the function of the connected servo circuits since the motor assembly usually includes a number of servo elements. It is sometimes not easy to decide whether the motor is malfunctioning or if there is a fault in the servo circuit.