笔者在1996年购得联想天蝎Ⅱ型家用电脑一台,经过几年的运转,性能颇佳,唯光驱性能日渐衰退。先是一些“烂盘”读不出来,后来连一些好盘也读不出来了。用清洗光盘清洗光驱,效果不明显,真是“用之不能,弃之可惜”,于是决定自己动手修理。首先找到三张分别属优良、普通、较差的光盘,以作为检验盘,结果有的光盘在该光驱上能读出 I purchased in 1996, Lenovo Scorpio Ⅱ type a home computer, after several years of operation, the performance is quite good, only CD-ROM performance deteriorating. First, some “bad disk” could not be read, and later even some good disk can not read out. Cleaning the disc with a cleaning disc, the effect is not obvious, really “can not be used, abandoned a pity”, so decided to repair yourself. First of all, I found three good, ordinary, poor CDs, respectively, as a test disc, as a result of some CD-ROM can read