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故障现象:一台J27录像机插入磁带后,录像机不能自动接通电源,手动接通VTR开关,只要一推入磁带,磁鼓便高速旋转(但磁带不能装盒),约十多秒后停转,同时磁带入舱完成半加载后又立即弹出。故障分析:根据故障现象,首先怀疑磁带开关状态是否正常,如图所示为磁带开关与系统控制微处理器IC6001的连接图。在正常情况下,磁带开关有A、
Symptom: After a J27 video cassette recorder is inserted into the tape, the VCR can not be powered on automatically and the VTR switch is manually turned on. As soon as the tape is pushed in, the drum rotates at high speed (but the cassette can not be loaded) and stops after about ten seconds , While the tape into the cabin after the completion of the semi-loaded pop-up immediately. Failure Analysis: According to the fault phenomenon, first of all suspect tape switch status is normal, as shown in the figure for the tape switch and system control microprocessor IC6001 connection diagram. Under normal circumstances, tape switches have A,