本文给出的彩色条状信号产生器是为“饱和”试验彩色视频监视器而设计的。它具有低成本、小尺寸和元件少的特点。彩色条状信号产生器的核心是一个74LS90十进制计数器(见图1)。用它的输出做为彩色显示(见表1)。如果用图1中的IC3直接10分频，则会在某些监视器中产生误差。技术上 The color bar signal generator presented in this paper is designed for a “saturated” test color video monitor. It has the characteristics of low cost, small size and less components. The heart of a color bar signal generator is a 74LS90 decimal counter (see Figure 1). With its output as a color display (see Table 1). If you use the IC3 in Figure 1 directly divided by 10, will produce some errors in the monitor. Technically