彩色电视机中的可调元件很多,它们对光栅、图像、彩色及伴音质量有一定的影响。因此,清楚地了解可调元件的作用,无疑会给检修工作带来不少方便。对于使用年限较久的电视机,由于性能指标下降,往往会产生一些小毛病,如光栅位置偏移、图像不稳定、清晰度差、彩色不好、伴音沙哑、失真等等,一般可通过调整可调元件来解决。但是,决不可以盲目地随意调整,尤其是在不具备示波 There are many adjustable components in color televisions, which have a certain impact on the quality of the gratings, images, color and sound quality. Therefore, a clear understanding of the role of adjustable components will undoubtedly bring a lot of convenience to the maintenance work. For the television set with a longer service life, there are some small problems caused by the decrease of the performance index, such as the shift of the raster position, the instability of the image, the poor sharpness, the poor color, the hoarseness of the sound, the distortion, and the like. Generally, Adjustable components to solve. However, you should never adjust blindly and arbitrarily, especially if you do not have any oscilloscope