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我在接修卫星接收站的三台神州DS-600数码接收机时,发现其故障部位均在电源电路,且故障元件各不相同。另外,该批神州DS-600数码接收机的电源电路与以往一些维修杂志所刊的电路有较大差异,笔者根据该机电源板实物绘出了该机的原理图(见图1),因电源板上元器件均无位号,故元件标号为笔者所加限于条件,有些元器件无法采集数值,请鉴谅。下面对其电源工作原理进行简述,同时也将本人的维修实例写出,供同行维修此机型的电源电路时参考。
When I took over the three Shenzhou DS-600 digital receivers of the satellite receiving station, I found that the fault parts were all in the power circuit, and the faulty components were different. In addition, the number of divine DS-600 digital receiver power supply circuit and some previous maintenance magazine published a larger difference between the circuit, the author according to the aircraft power board in-kind draw the schematic diagram of the aircraft (see Figure 1), due to Power board components are not bit, so the label for the author limited by the conditions imposed, some components can not collect values, please forgive me. The following describes the working principle of its power supply, but also to write my own examples of maintenance for the maintenance of this model counterparts when the power circuit reference.