机型:新科VCD—330型影碟机故障现象:较新的碟片可以正常播放,但读碟时间较长,碟片质量稍差就无法识读,且机内发出“咔咔”声。检修:用一张质量稍差的碟片进行播放,发现激光头复位时聚集、搜索正常,主轴开始启动旋转,但这时激光头却在进给电机驱动下向内侧移动,到达最里端后电机仍旋转不停,造成进给齿条与驱动齿轮打齿发 Model: Shinco VCD-330-type video player Fault phenomenon: newer discs can be played normally, but the longer the disc reading, the disc quality is slightly poor can not read, and the machine issued a “Kaka” sound. Overhaul: Play with a piece of disc of lesser quality and found that the laser head gathers when reset, the search is normal, the spindle starts to rotate, but the laser head moves to the inside driven by the feed motor and reaches the innermost end The motor is still rotating, causing the feed rack and drive gear to hit teeth