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故障现象:雅佳VS-P1录像机,按下重放键后自动保护停机。检修:打开机盖和磁鼓防护罩,观察到磁带盒推入时,盒仓电机运转,加载机构同时误动作。磁带盒降下盒仓后,加载运动也已完成全过程,外露的磁带在已紧贴主导轴的压带轮上方被挤皱。按下重放键时,磁鼓、主导轴等起动,但处于异常状态的磁带套在压带轮上弯曲扯紧导致自动保护停机。从现象分析,若系统控制电路失灵,使推入磁带盒动作等效于按下重放键,势必引起主导轴电机、加载电机和磁鼓等机构同时受控动作;只有加载机构误动作,则可排除上述假设,故障部位可能在机械驱动电路上。
Symptom: Accor good VS-P1 VCR, press the playback button automatically protects the shutdown. Maintenance: Open the cover and drum guard, observe the tape cartridge is pushed, the cartridge motor, loading mechanism at the same time malfunction. After the cartridge has been lowered, the loading movement has also been completed and the exposed tape is crushed above the pinch roller that has been brought into close contact with the capstan. When the replay button is pressed, the drum, capstan, etc. start, but the tape cover in the abnormal state is bent and bent on the pinch roller to cause the automatic protection to stop. From the phenomenon analysis, if the system control circuit failure, so that the push into the cartridge action is equivalent to press the playback button, will inevitably lead to the capstan motor, loading motor and drum and other agencies controlled at the same time; only loading mechanism malfunction, then You can rule out the above assumptions, the fault may be parts of the mechanical drive circuit.