Home  |  Contact Us  |  Download  |  中文版
Home About Us News Products Network Recruitment Case Feedback Download Contact
Loading...
    Column Navigation
Hardware maintenance
Software maintenance
LCD display repair
Projector repair, projector
All-in-one maintenance
iPhone手机维修
IPAD平板维修
MacBook笔记本维修
iMac一体机维修
教学一体机维修
上门维修
    Contact Us
Addr: Jinxin maintenance, no.1-191, Wanshang international computer digital port, Chengguan District, Lanzhou City, Gansu Province
Tel: 0931-8699388
Fax: 0931-8699388
E-mail: 593246991@qq.com
Website: http://www.lznbwx.com
Your Current Location:Home > Case > Software maintenance > 联想H61H2-AM3主板不开机维修
Case Name:联想H61H2-AM3主板不开机维修
Case Detailed:

主板型号:联想H61H2-AM3

故障现象:不触发

维修过程:短接主板开机引脚,主板不能触发,测量开机引脚有3.3V供电,然后测试主板各供电电感,

测到CPU供电时发现有短路,仔细观察某路CPU供电管有腐蚀痕迹,于是拆掉已腐蚀MOS供电管并测量

确定拆下mos管已损坏,接下来测试主板已不短路。

于是更换全新mos供电管后再次测试,主板依然不再短路

通电测试主板可以亮机,接下来安装系统;

测试主板声音、网络、显示等功能全部正常后

这块主板也维修完毕。


电脑维修热线:151 9315 3138 电话微信同号

Links: 兰州笔记本电脑维修 | 兰州iPad苹果平板维修 | 兰州MacBook苹果笔记本维修 | 兰州iMac苹果一体机维修 | 兰州iPhone手机维修 | 后台管理 | 
Addr:Jinxin maintenance, no.1-191, Wanshang international computer digital port, Chengguan District, Lanzhou City, Gansu Province  Tel:0931-8699388    
CopyRight © 2024 Lanzhou Jinxin mobile computer sales and maintenance service center  All rights reserved  
< img style="float:left;" src="images/icp.png">

甘公网安备 62010202003004号

备案号:陇ICP备20000598号