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VCD机激光头是利用激光束将碟片上的坑点信号转换为电信号的一种光电一体化组件。目前使用的激光头,分飞利浦全息照像式激光头和索尼普通三光束激光头两大类。VCD机发生读碟困难或不读碟故障时,一般都是激光头脏污、激光管老化、物镜发花、聚焦循迹线圈变形或开路等造成。本文就此介绍一些检修步骤及方法技巧,供参考。清洗普通三光束激光头由两部分组成:第一部分为物镜,它与循迹、聚焦线圈安装在同一支架上;第二部分为激光发
VCD machine laser head is the use of laser beam pits on the pit signal into an electrical signal of a photoelectric integrated components. The current use of the laser head, sub-holographic Philips head and Sony laser head three general three types of laser head. VCD machine hard to read the disc or do not read the disc failure, the laser head are generally dirty, the aging of the laser tube, the objective lens blossom, focus tracking coil deformation or open circuit caused. This article describes some of the overhaul steps and methods for reference. Cleaning ordinary three-beam laser head consists of two parts: the first part of the objective lens, which with tracking, focusing coil mounted on the same bracket; the second part of the laser hair