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3.读不出TOC目录CD/VCD碟片的TOC目录中包含有CD/VCD碟片的曲目、长度等信息,引起机器不能读取TOC目录的原因较多,所涉及的电路也较广。CD/VCD碟片的TOC目录都是存放在碟片的最内圈,因此要读取CD/VCD的TOC目录,机器的机心及激光头组件、聚焦及循迹伺服、RF信号处理电路、数字信
3. Can not read the TOC directory CD / VCD disc TOC directory contains CD / VCD disc tracks, length and other information, causing the machine can not read the TOC directory for many reasons, the circuit involved is also wider. The TOC directory of CD / VCD discs are stored in the innermost circle of the disc, so read the CD / VCD TOC directory, machine movement and laser head assembly, focusing and tracking servo, RF signal processing circuit, Digital letter