论文部分内容阅读
部分2004年产同洲牌CDVB-3188C-S1接收机的门限指标较其它机型明显偏高,在本地收亚3S卫星需配1.8米以上天线。此外,该机也接收不到Ku波段信号。前不久在检修该型接收机时,发现解压板F座信号线串接了一只带有磁芯的电感,可以明显看出信号线原来是直接焊在印刷板上的,后被剪断串
Some of 2004 CDCB-3188C-S1 receivers produced thresholds significantly higher than other models, in the local collection of sub-3S satellite with more than 1.8 meters antenna. In addition, the machine also can not receive Ku band signal. Not long ago in the repair of the type of receiver, and found the decompression board F signal line connected in series with a core of the inductor, you can clearly see that the signal line was originally directly soldered on the printed board, was cut after the string