联想一体机适配器故障
时间:10-02
整理:3721RD
点击:
联想一体机适配器,型号:41A9734,19.5V,6.15A,120W,无输出,拆开检查里面二个场管短路,保险烧断,反面一双8脚贴片芯片中间爆掉一块,只看清是LTA***N,*号部分炸掉了,应该是3位数,有人知道电源的资料吗?谢谢
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目测控制IC,驱动电阻,MOSFET和二极管,保险丝换掉后应该就好了,同时也检查先原边电容有没有短路