电视机使用几年后,特别在南方,因空气潮湿,显像管管座与管脚氧化而接触不良,引起显像管各管脚电压不稳,造成图像忽暗忽亮。最暗时看不到图像,最亮时出现回扫线。以前修理的方法 A few years after the use of television sets, especially in the South, due to humid air, the CRT socket and the oxidation of the pins and poor contact, causing the CRT pin voltage instability, causing the image suddenly flickering. Can not see the image when the darkest, the brightest when the flyback line. The previous method of repair