Here below are possible causes and troubleshooting steps of laptop that can't power on, hope it may help:
Possible causes:
1. AC adapter failure.
2. Power jack failure.
3. Motherboard failure.
Possible troubleshooting steps and repair solutions:
1. Test the AC adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.
2.It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.
3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.
http://www.chargerbuy.com/replacement-dell-inspiron-mini-910-30w-ac-adapter-19v.html
It is the Ac Adapter, had it checked out today, the cord to it checked out ok but the adapter is DEAD.
Found one at Skynetusa.com they warranty their product for 2 years,they make ac adapters for Lexmark also.......... I Called Dell, they couldn't even find the part I wanted they sent me the Power Cord (without) the AC adapter for 31.00.
Hope this helps.......
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