故障现象:CD机的托盘在按“OPEN/CLOSE”出盒键时,托盘能向外出一点但不能全部出盒。分析与检修:打开机器盖子,用手稍微向外推一下托盘,托盘就能自动伸出。再按“OPEN/CLOSE”键,托盘能自动进入,但不能完全到位,用手把托盘仓送到位后,发现激光头托架并没有升起来,是带动激光头托架的传动机构转轴没有转动。根据上述现象说明该机的 Symptoms: CD drive tray in the “OPEN / CLOSE” box key, the tray can go out a little but not all out of the box. Analysis and Overhaul: Open the lid of the machine and push the tray a little outward with your hand, and the tray is automatically extended. Press the “OPEN / CLOSE” button, the tray can automatically enter, but can not be fully in place, the hand tray to the place and found that the laser head bracket did not rise, is driven laser head bracket drive shaft does not rotate . According to the phenomenon described in the aircraft