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磁场方面原因包括:(1)显像管管径上色纯磁环发生移位,偏离了校正位置;(2)外磁场干扰。外磁场包括三部分:第一是无法避免的地磁场;第二是电视机内铁质安装件被地磁场或机内其他电磁元件磁化后而产生的附加磁场;第三是电视机附近无意放置的磁性元件(如:纯永久磁钢、变压器之类)产生的干扰磁场。色磁环移位和外磁场干扰将使显像管内电子束偏离正常运行轨迹,三色电子束没有击中对应的荧光点(红、绿、蓝),从而造成屏幕色彩混乱,而消磁电路中消磁线圈产生的强大的衰变式交变
Reasons for the magnetic field include: (1) tube diameter color pure magnetic ring shift, deviate from the calibration position; (2) external magnetic interference. The external magnetic field consists of three parts: the first is the unavoidable magnetic field; the second is the additional magnetic field generated by the magnetization of the ferromagnetic field or other electromagnetic elements in the television; and the third is the unintentional placement Magnetic components (such as: pure permanent magnets, transformers, etc.) generated by the interference magnetic field. Color magnetic ring shift and external magnetic field interference will make the electron tube in the tube deviation from the normal operation of the track, the three-color electron beam does not hit the corresponding fluorescent point (red, green, blue), resulting in confusion in the screen color, and degaussing degaussing Coil produced by a powerful decay-style alternating