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故障现象 接通电源开关,电源指示灯亮,多功能显示屏显示正常,但带盒插不进。 分析与检修 接通电源开关,多功能显示屏能够正常显示,说明该机开关稳压电源电路工作基本正常。根据上述故障现象分析,初步判断故障出在带仓机构或系统控制电路中,检查时拔下电源插头,然后取一盒录像带置于带仓口,用手拨动带仓电机蜗轮使带盒进仓,带盒到位后按下各功能键,各功能均正常,按下重放键,监视器上有正常的彩色图像和伴音信号,说明带盒进仓后机器能够正常工作,按下出盒键,带盒能够正常弹出。上述检查结果表明,故障出在带
Symptom Turn on the power switch, the power indicator light, multi-function display shows normal, but not into the box with the box. Analysis and Maintenance Turn on the power switch, multi-function display can be displayed normally, indicating that the machine switching regulator power supply circuit work is normal. According to the analysis of the above symptoms, the initial judgment of the fault in the warehouse mechanism or system control circuit, unplug the power plug during inspection, and then take a box of video tape placed in the warehouse with a hand, Warehouse, with the box in place, press the function keys, the functions are normal, press the playback button, the monitor has a normal color image and audio signals, with the box into the warehouse after the machine can work, press the box Key, the cassette can pop up normally. The above test results show that the fault is out of band