随着家庭影院的不断普及,彩电两旁都有磁性相当强的音箱,放置过近,彩电易受磁场影响出现块状色斑、图像失真等现象。这是因为彩管阴罩板被磁化,使红、绿、蓝三电子束不能准确地打在各自的荧光粉上造成的。一般彩电使用两年以上,就应作一次消磁处理。现在全国各地纷纷进行电网改造,安装新型电度 With the continuous popularization of home theater, color TV sets have very strong magnetic speakers on both sides, placed too close, susceptible to the magnetic field of color patches appear block, image distortion and so on. This is because the CPT mask is magnetized so that the red, green and blue beams can not exactly hit each phosphor. General use of color TV more than two years, it should make a degaussing. Now all over the country have carried out power grids to install a new type of electricity