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彩色显像管是彩电的重要部件,价格昂贵。当使用年久之后,会出现各种各样的故障。下面介绍用万用表档测彩色显像管的方法。第一,判断彩色显像管的好坏:用万用表R×1kΩ档测量显像管灯丝(七脚管型的灯丝脚为脚;八脚管型的为脚),测得此两脚之间的直流电阻约为1.2～1.5Ω左右。若偏小,是内部有短路现象;若阻
Color CRT is an important part of color TV, expensive. When used for a long time, there will be a variety of failures. The following describes the use of multimeter profile color CRT method. First, determine the color CRT is good or bad: Use a multimeter R × 1kΩ file to measure the tube filament (seven-tube-type lamp for the feet; eight-legged tube for the foot), measured between the two feet DC resistance About 1.2 ~ 1.5Ω. If smaller, there is a short circuit inside; if resistance