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故障现象:电源开关正常,托盘进出正常,不工作。维修方法:打开外壳,接通电源,放入光盘,托盘进入后,看到光盘选盘机构不运转,光盘所处位置不在光头下,光头不抬起,整机不工作,按动选盘开关,托盘旋转,但不停,几秒钟后,机器断电保护,说明没有光盘位置信号输入微电脑,或者微电脑光盘检测性能坏。本着
Symptom: power switch is normal, the tray out of normal, not working. Maintenance methods: Open the shell, connect the power, into the disc, tray into, see disc disc selection mechanism does not work, the disc is located in the bald, the bald does not lift, the machine does not work, press the dial switch , Tray rotation, but non-stop, a few seconds later, the machine power protection, indicating no CD-ROM location signal input microcomputer, or micro-computer CD detection performance is bad. In line with