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该机由机芯,RF信号放大电路,APC电路,数字信号处理电路,伺服控制电路,伺服驱动电路,MPEG1解码电路,PAL/NTSC编码器,音频D/A转换电路,音频信号输出电路,卡拉OK电路,前置放大电路,机芯微处理器,系统控制微处理器,电源电路等组成。——机芯。该机选用飞利浦机芯。该机芯由托盘进出机构、夹持光盘的夹持机构、进给机构、光盘旋转机构和激光头组件等组成。其特点是抗震能力强,全息激光光路工作稳定、可靠,由5只光电二极管输出5种电信号,经RF信号放大电路形成RF信号。其自动功率控制(APC)电路安装在激光头组件上。
The machine consists of the movement, RF signal amplifier circuit, APC circuit, digital signal processing circuit, servo control circuit, servo drive circuit, MPEG1 decoder circuit, PAL / NTSC encoder, audio D / A converter circuit, audio signal output circuit, OK circuit, preamplifier circuit, movement microprocessor, system control microprocessor, power circuit and other components. - movement. This machine uses Philips movement. The movement from the tray into the body, holding the disc clamping mechanism, feed mechanism, optical disc rotation mechanism and laser head components. It is characterized by strong seismic capacity, holographic laser light path work stable and reliable, by the five photodiode output 5 kinds of electrical signals, RF signal amplification circuit to form RF signals. Its automatic power control (APC) circuit is mounted on the laser head assembly.