From the point fo Input of the whole Human-Computer Interaction Subsystem, it comprises the mechanical keys on Front Panel and the Infra-Red keys, while its Output consists of VFD, OSD and Setup Menu.

• 整个人机交互子系统,其输入包括前面板机械按键输入和红外遥控输入; 而其输出则主要包括VFD、OSD和设置菜单等。