论文部分内容阅读
卡西欧TV-770液晶彩电的伴音中频不符合我国标准,因此,用它接收我国电视节目时只有图像而无伴音。为使该液晶彩电既有图像又有伴音,就需要进行改频。 改频的方法是:打开该彩电的机壳,在线路板上分别找到6M、6M、5.85M三个三端滤波器,用国产的3只相似体积的6.5M三端滤波器取而代之。
Casio TV-770 LCD color TV sound IF does not meet our standards, therefore, it is only used when it receives the television program in our country without sound. In order to make the liquid crystal color TV both sound and audio, you need to change frequency. The method of frequency conversion is as follows: Turn on the chassis of the color TV and find the three three-terminal filters 6M, 6M and 5.85M respectively on the circuit board and replace it with the domestic three similar 6.5M three-terminal filters.