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[例1]新科330型分析检修:打开机盖观察,发现激光头物镜上有一层脏污,用镜头纸蘸少许无水酒精清洁后,情况有了很大好转,但播放部分质量稍次的碟片时,仍不能读碟,显示“NODISC”。因该机长期在歌舞厅工作,利用率很高,估计激光头有可能老化,将激光头上的激光功率调节电位器略作调整后,即使播放一些有轻微划伤的碟片。声图正常。 [例2]Paiaic K10型。分析检修:打开机盖观察,激光头有上下聚焦搜索动
[Example 1] Shinco 330 analysis and maintenance: open the lid observation and found the laser lens on the surface of a layer of dirt, with a small amount of anhydrous alcohol to clean the lens paper, the situation has been greatly improved, but the playback part of the quality of slightly Disc, still can not read the disc, display “NODISC ”. Due to the machine long-term work in song and dance halls, high utilization, it is estimated that the laser head may be aging, the laser head laser power adjustment potentiometer slightly adjusted, even playing some slightly scratched discs. Sound map is normal. [Example 2] Paiaic K10 type. Analysis and Maintenance: Open the lid observation, the laser head up and down focus search