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交流调压器是一种能够将交流市电升高或降低的电器。在彩电电源的维修实践中,巧妙地使用交流调压器能够快速地压缩故障范围,判断故障发生的部位,起到事半功倍的效果,本文举两个典型的实例,以期对读者有所启发。例1:一台北京2982P彩电,开机后“三无”,电源指示灯和待机指示灯都不亮。分析与检修:从故障现象看,显然是电源未工作。打开机壳检查,发现保险丝内部烧黑,内壁上附有
AC voltage regulator is a kind of electrical equipment that can increase or decrease AC power. In the practice of color TV power supply maintenance, the subtle use of AC voltage regulator can quickly compress the fault range to determine the fault location, play a multiplier effect, this article gives two typical examples, in order to inspire the reader. Example 1: A Beijing 2982P color TV, boot “three noes”, the power indicator light and standby light are not bright. Analysis and Maintenance: From the breakdown of the phenomenon, it is clear that the power is not working. Open the case check and found that the black fuse inside, attached to the inner wall