论文部分内容阅读
据用户称:该机前两天改接有线电视插头时,将闭路线插头错误地插入AV的音频输入端子,当时没有开机收看,第二天发现并改正后开机,便出现TV图像正常,但伴音很小且有噪音的故障,而AV时声像正常。当时觉得这个故障的出现有点奇怪,于是试换TV/AV切换电路IC401(HCF4066)后开机无效,将I
According to the user, when plugged into a cable TV plug two days ago, the plug of the closed circuit was wrongly inserted into the audio input terminal of the AV. At that time, it was not turned on and watched. After the next day it was found and corrected, the TV image appeared normal but Small and noisy sound failure, while the AV sound like normal. At that time, the emergence of this fault a bit strange, so try for TV / AV switching circuit IC401 (HCF4066) boot invalid, the I