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[例1]故障现象 重放时屏幕上彩色图像和伴音信号均正常,当按下倒带键时,倒带状态指示灯亮,但磁带盒不卷带,一秒钟后停机自保,停止指示灯闪烁。 分析与检修 能够正常重放,说明该机工作基本正常。按倒带键,倒带状态指示灯亮,磁带盒不卷带,进一步观察发现主导轴电机不转动,初步判断故障出在主导轴电机驱动
[Example 1] Symptom During playback, the color image and audio signal are normal on the screen. When the rewind button is pressed, the rewind status indicator is on, but the tape cassette is not reeled. After one second, the machine stops down and stops. Light flashing Analysis and overhaul to normal playback, indicating that the basic work of the aircraft normally. Press the rewind button, the rewind status indicator light, cassette tape is not taken, further observation found that the capstan motor does not rotate, the initial judge fault is the capstan motor drive