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众所周知,家用录像机的自动故障检测与自动保护电路是录像机整个机电系统中较为复杂与重要的组成部分。随着录像机技术的不断发展,其检测与保护面也越来越宽。故障检测是由录像机各传感检测电路来完成的,判断进而实施相应动作则由系统控制微处理器来完成的。自动保护停机基本上可分为有故障与无故障两类。如在正常重放时,用户按下暂停键,录像机进入静像工作方式,静像持续几分钟后,如果用户不进
As we all know, home video recorders automatic fault detection and automatic protection circuit is the video recorder the entire mechanical and electrical systems more complex and important part. With the continuous development of video recorder technology, the detection and protection surfaces are also getting wider and wider. Fault detection by the VCR sensing sensing circuit to complete the judge and then the implementation of the corresponding action by the system control microprocessor to complete. Automatic protection shutdown can basically be divided into two types of fault and no fault. As in normal playback, the user presses the pause button, the recorder enters the still image working mode, the still image lasts for several minutes, if the user does not enter