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彩色电视机内部的金属构件若被磁化,其磁场就会干扰三基色电子束的偏转路径,使重现彩色发生错乱。常见磁化故障主要有两类;(1)受机外磁场的磁化。如果带有较强磁性的用品靠近彩电,如磁化杯、收录机喇叭或小孩玩磁铁等,会使彩电受到磁化,这种磁化是不均衡的,反映在屏幕上是局部成团的不正常色斑。这种故障不须拆卸机盖,只须经消磁处理就会恢复正常。(2)机内消磁电阻损坏或不稳定。开机瞬间,在本机自动消磁过程中,自动消磁圈中电流未能按由大逐步变小至接近为零的过程进行,彩电受到自身消磁线圈的磁化,反映在屏幕上是整个屏幕上、中、下发生不同的色彩失真。这种故障不仅需要作消磁处理,还须更换消磁电阻,才能彻底排除故障。
If the metal components inside a color television set are magnetized, the magnetic field will interfere with the deflection path of the three primary color electron beams, causing the color reproduction to be disturbed. There are two main types of common magnetization faults: (1) magnetization of the external magnetic field. If the product with a strong magnetic close to color TV, such as a magnetized cup, tape recorder speakers or children playing magnets, etc., will make color TV by magnetization, this magnetization is not balanced, reflected in the screen is a local group of abnormal color spots . This failure does not require disassembly of the cover, just by degaussing will return to normal. (2) the machine degaussing resistance is damaged or unstable. Starting moment, in the process of automatic degaussing, degaussing current in the automatic degaussing can not be large gradually smaller to nearly zero process, color TV by their degaussing coil magnetization, reflected in the screen is the entire screen, medium , Under different color distortion occurs. This failure requires not only for degaussing, degaussing resistance must also be replaced in order to completely troubleshoot.