故障现象:一台长虹C2151A型彩电,彩色不正常,打开机壳发现,主板上一片焊点,机主讲:在附近的修理部修理了好几天,收了30元钱,后送到本部。开机检查发现,屏幕上的图像缺少蓝色,哈尔滨电视台、浙江电视台的台标,正常时是天蓝色,该机出现的是绿色,用彩条信号发生器送信号,图像从左至右的颜色分别 Symptoms: a Changhong C2151A color TV, color is not normal, open the case found a motherboard on the solder joints, the machine owner: Repair Department in the vicinity of repair for several days, received 30 yuan, after the delivery to the Department. Boot check found that the lack of blue screen image, the TV station in Zhejiang, Zhejiang TV station logo, normally sky blue, the aircraft is green, the color bar signal generator to send signals, the color of the image from left to right respectively