自己弄坏的EDC7电脑维修

xiaoman1825

今天做2014掌中宝曲轴信号驱动电脑实验，由于接线不够，所以就找了点电线临时连到了柴油小灵通实验台上，在柴油小灵通试验台驱动电脑喷油时，不小心将外接电线连到了电脑外壳。瞬间电脑停止工作。电源灯闪烁。这明显是电脑短路造成电源保护现象。真是惨呀，越着急越出事，这又能怪谁呢？就是自己不小心。修吧！ file:///c:/documents and settings/administrator/application data/360se6/User Data/Temp/forum.php?mod=attachment&aid=MjE4OHw0ZWRhODE1ZHwxMzk4MjE1MjcxfDB8MjE3Nw%3D%3D&noupdate=yes file:///c:/documents and settings/administrator/application data/360se6/User Data/Temp/forum.php?mod=attachment&aid=MjE4OHw0ZWRhODE1ZHwxMzk4MjE1MjcxfDB8MjE3Nw%3D%3D&noupdate=yes file:///c:/documents and settings/administrator/application data/360se6/User Data/Temp/forum.php?mod=attachment&aid=MjE4N3w0MDkxOTEzOXwxMzk4MjE1MjcxfDB8MjE3Nw%3D%3D&noupdate=yes


电脑打开，测试正电源对地短路，先把电源附近的瞬态抑制二极管卸下，没解决。电源拆下，没解决，还是短路。最后测试升压电路的升压场效应管，N沟道。短路！就是它了。在仓库内随便找了一个N沟道场馆，换上。不短路了。


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xiaoman1825

交流学习一下，844717297QQ