彩电看似复杂,而且机内带有万伏以上的高压电,往往令人觉得神秘莫测。其实,彩电有些故障完全可以在家中自行修复,现列举数例如下,仅供参考。一、“三无”现象及处理。开机后既无光栅,也无图像无伴音,通称“三无”故障。这通常是电源部分异常所致。先检查电源插 Color TV looks complicated, but the machine with high voltage above 10,000 volts, often make people feel mysterious. In fact, some faults TV can be completely self-repair at home, are citing a few as follows, for reference purposes only. First, the “three noes” phenomenon and handling. There is no raster after boot, no picture without sound, commonly known as “three no” fault. This is usually caused by abnormal power supply. First check the power plug