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本文介绍G、E公司的一种“自动控制”彩色电视机,它的前面板上装有“VIR”开关,当开关在on位置,且接收到电视台的场插入参考信号即VIR信号时,VIR指示灯点亮,接收机的手动色调和色饱和度控制脱开,彩色图象的色调和色饱和度由接收机通过VIR彩色控制系统自动控制。 VIR信号的检测和处理电路,安装在一块单独的插入组件里,包含五块集成电路和30个晶体管。文章所介绍的原理和方法,也可供电视台内部自动调整彩色信号以及彩色电视机生产厂自动调试解码电路时作为参考。
This article describes G, E’s “automatic control” color TV set, which has a “VIR” switch on the front panel. When the switch is in the on position and the receiving station receives the reference signal, VIR, When the lamp is on, the receiver’s manual and color saturation control are disengaged and the hue and saturation of the color image are automatically controlled by the receiver via the VIR color control system. The VIR signal detection and processing circuitry, housed in a single plug-in assembly, contains five integrated circuits and thirty transistors. The article describes the principles and methods can also be used for internal automatic adjustment of color television signals as well as color TV manufacturers automatically debug the decoding circuit as a reference.