彩色电视机的显像管后座是连接视放板与显像管之间的接插件,使用日久后会因受潮锈蚀、松动等原因使图像重现发生故障。管座常见的故障有两种:一种是个别管脚接触不良其原因多为锈蚀、打火或维修时插拔过于频繁等,表现为无光栅、光栅暗或缺某基色。处理方法一般是更换管座,应急维修可将管座封壳撬 CRT TV color television rear seat is connected between the video board and the connector between the picture tube, the use of time will be due to moisture corrosion, loosening and other reasons to make image reproduction failure. There are two common socket fault: one is poor contact with the individual pins for the reasons for corrosion, ignition or maintenance is too frequent, such as plug, the performance of non-grating, grating dark or missing a color. Treatment is generally replacement of the tube seat, emergency repair can pry the tube seat