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众所周知,这只小电感在本机中只是起滤波和消除高频干扰的作用,并无其他特殊用途。除去断路或接触不良外,即使将它短路也不会影响图像和伴音。那么在本机故障里它却使好几个维修人员“败阵”,到底为什么呢?我想只有一种可能,那就是此电感在机子运回家途中受到震动而使引脚脱焊,导致焊点与引脚之间接触不良。因为刚开始时引脚没氧化,故障也就不明显,随着使用时间的增长,该电感脱焊引脚就会因接触
As we all know, this small inductor in this machine is only played the role of filtering and eliminate high-frequency interference, and no other special purposes. Remove the open circuit or poor contact, even if it is shorted will not affect the image and sound. So in the local failure it has several maintenance personnel “defeat”, in the end why? I think there is only one possibility, that is, the inductance of the machine shipped back home by the vibration and the pins off the solder, resulting in solder joints Poor contact with the pins. Because the beginning of the pin is not oxidized, the fault is not obvious, with the growth of the use of time, the inductance of the pin will be due to contact with the touch