彩色显示器出现回扫线的特征是:在屏幕上出现略倾斜有横亮线。其原因是显像管在场扫描回扫期间没有能够完全截止,产生回扫线涉及到的电路有:场输出电路、场消隐电路、视频电路和显像管电路,但各部分电路出现故障的现象有明显区别。本人通过几年的维修,总结了以下经验。供同行参考。 Color display appears retractable line is characterized by: the screen appears slightly inclined with horizontal bright line. The reason is that the CRT can not be completely cut off during the flyback scanning. The circuits involved in generating the flyback are: the field output circuit, the field blanking circuit, the video circuit and the picture tube circuit. However, the phenomenon of the failure of each part of the circuit is obviously different . I passed several years of maintenance, summed up the following experience. For peer reference.