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laptop won't power on

Posted on 2011-03-16
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Last Modified: 2012-05-11
I have this laptop that won't power on, so I figure the battery must be dead, but when I plug the AC adapter strange thing happens, if I plug the AC adapter in the power outlet a green light comes up on the AC adapter, but as soon as I plug the AC adapter into the laptop, that light shuts off. What can be the problem
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Question by:Bob Macpherson
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Randy Downs earned 500 total points
ID: 35147397
could be a bad power adapter
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by:Bob Macpherson
ID: 35147405
I tried 2 power adapters, they do the same thing
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by:Randy Downs
ID: 35147441
try it with the battery out
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Author Comment

by:Bob Macpherson
ID: 35147610
a new development, I found a docking station and it powers on fine on it, I will try with a battery out like you said, to see what happens.
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Author Comment

by:Bob Macpherson
ID: 35147654
same thing happens with the battery out, the light on AC adapter is on until I plug it into the laptop, then it goes off.
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Expert Comment

by:Randy Downs
ID: 35147716
Try the power adapters on another laptop. I suspect they are both bad.
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Author Comment

by:Bob Macpherson
ID: 35147776
it's an old laptop Compaq 6710b, I don't think I have another one around...
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by:Randy Downs
ID: 35147818
I'd get a universal power supply like this and you can use on any laptop to test - http://www.amazon.com/Rocketfish-RF-BPRAC3-Universal-Laptop-Adapter/dp/B002ZVHFEG/ref=pd_cp_e_2
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Author Comment

by:Bob Macpherson
ID: 35147852
that won't work, this power supply connector is a larger round and has pins inside!
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Expert Comment

by:Randy Downs
ID: 35147926
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Expert Comment

by:jtrthehax
ID: 35147955
If it works on a docking station and has a special port on the bottom for it, then it's very possible the AC port on the laptop is bad. I've seen the connector inside become unhooked from the PCB before because of heat over time.
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Author Comment

by:Bob Macpherson
ID: 35193805
I bought a new battery and a new ac adapter and now it works fine
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