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日立P100-DH型放像机是日立公司新推出的多制式的卡拉OK放像机。由于该机刚推出来不久,且维修资料十分缺乏,加至该机的电源电路故障率较高,因此维修该机就有一定的难度。为帮助广大维修人员能迅速排除此种机型的故障,笔者把该机的电源电路板绘制成电路图,如图1所示,供广大维修人员在检修时参考。
Hitachi P100-DH player is Hitachi’s new multi-standard karaoke player. As the aircraft just launched soon, and the lack of maintenance information, added to the machine’s power circuit failure rate is high, so the maintenance of the aircraft there is a certain degree of difficulty. To help the majority of maintenance personnel can quickly rule out the failure of such models, the author of the machine’s power circuit board is drawn into a circuit diagram, shown in Figure 1, for the majority of maintenance personnel in the maintenance reference.