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如何判断磁头是否需要更换呢?在磁头工作面清洁的条件下,磁头磨损得较严重的机器,放音时,高频段信号丢失得特别厉害,声音异常发闷,失真严重。这时已明显可见磁头的磨痕,它的工作面向深度方向凹了进去,这样的磁头已该更换。调整磁头时首先应注意安装尺寸,特别是工作面与安装孔的间距(如图1)。过长会因磁头对磁带的压力太大而破坏正常工作条件;过短磁带不能与磁头正常吻合而产生漂音甚至完全无声。
How to determine whether the head needs to be replaced? Head cleaning conditions, head wear more serious machine, playback, the loss of high-frequency signal is particularly powerful, abnormal sound bored, serious distortion. At this moment, it is obvious that the wear mark of the magnetic head is concave, and its work face is concaved in the depth direction. Such a magnetic head has been replaced. When adjusting the head should first pay attention to the installation size, especially the spacing of the face and mounting holes (Figure 1). Too long due to the magnetic head pressure on the tape is too large and undermining normal working conditions; too short tape can not coincide with the head and produce a natural or even completely silent sound.