Hello there. I applied wrong polarity voltage at power connector and the laptop does not switch on. What damage done, what components to replace? Is a Lenovo IdeaPad 310-15isk. Maybe a schematic diagram with marked possible problems will help? Thank you.
声誉积分: 450.6千
11
367
1.4千
Hi @naica
Here's the schematic for the motherboard.
Go to p.51 / 60 and follow the path from the jdcin1 connector (DC-In jack) through the PF1 fuse to the VIN circuit reference then find VIN ref. on p.53 / 60 and check PQ311, PQ312 and PU301 and all associated components connected to that path.
if the components aren't marked on the board, then you may have to find a boardview diagram for the motherboard. I couldn't find one. Only the schematics. You may have better luck.
Here's the maintenance and service guide for the laptop that will help to gain access to the motherboard.
这个答案有帮助吗？
Thank you very much. Greetings from Romania!
过去 24 小时： 0
过去 7 天： 0
过去 30 天： 2
总计 51
