日本索尼公司研制成内含伺服控制电路及机械控制电路的8位微控制器。伺服控制部分内含把从主导轴系统和磁鼓系统来的信号分频电路、为计测电机转速等的FRC(转速控制)捕捉电路、带判断奇/偶数扫描场电路的垂直同步信号分离电路。机械控制部分 Japan’s Sony company developed into a servo control circuit and mechanical control circuit 8-bit microcontroller. The servo control section incorporates a signal frequency division circuit from the capstan system and the drum system, a FRC (speed control) capture circuit for measuring the motor speed, etc., a vertical synchronizing signal separation circuit for judging odd / even field circuits . Mechanical control part