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Do you have a problem with the power connector on your laptop and want to know how to fix it yourself? This step-by-step power connector replacement guide will be very helpful for you. The guide will explain how to resolder a loose power connector or replace the connector if it’s broken.
Warning! This guide is only for experienced people, who know how to solder. If you are not sure, do not try it at home. You can damage the motherboard.
In order to replace the power connector, you’ll have to disassemble the laptop and remove the motherboard. You’ll find instructions for the motherboard removal for name brand laptops like Acer, Dell, Compaq, HP, IBM, Toshiba, Sony in these service manuals.
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July 17th, 2009 at 6:18 am
Hello,
I have a sony vaio VGN C-290 laptop and my adapter went bad after working intermittently. It would work or not work depending on how you shut off the computer. Then I bought a new one and it was working fine for 2 days and then it stopped working too. What could be my problem, battery or the ac input on the laptop. I would appreciate your help. Thanks.
May 24th, 2009 at 10:06 pm
gabriel,
First of all, I could be wrong so it’s up to you if you decide to follow my advise. Usually, the red wire is connected to the “+” prong. Take a look at the power supply and find out which one is “+”.
May 24th, 2009 at 6:19 pm
Hi, I am trying to replace a power jack on a SONY VGN-N130 and forgot whether the red wire goes to the middle prong or side prong of the jack?? Please help! Thank you.
April 27th, 2009 at 11:14 am
Joshwa,
If the motherboard gets power from the AC adapter but will not turn on, probably it’s bad motherboard.
Just in case you can try removing all internal components except the main once: motherboard, CPU and memory. Try turning it on when the laptop is minimized to bare bone system. If still nothing, most likely it’s bad mobo.
April 27th, 2009 at 11:04 am
Let me first say “Thank You” Laptop Tech for such a valuable resource. I have no problem doing a resoldering job like the one that you outlined, but I did have a quick question for you just to double check on a diagnosis. The NX570X model that I’m working on won’t power up at all, even with a charged battery. (The battery for this model has a charge indicator.) The total resistance of the machine (measured through the DC jack) seems normal, so I’m assuming a damaged/failed motherboard. Do you agree?
March 29th, 2009 at 9:57 am
Michael Glass,
Probably yes but I’m not sure 100%. Is it soldered properly? Maybe you accidentally damaged the motherboard?
Take a look at this post: How to fortify damaged power jack connection in a laptop
March 27th, 2009 at 1:19 pm
I have a Sony Vaio PCG-GRX570. The dc jack was
replaced twice. The second jack I should have epoxied it in place. I pulled to hard on it and it broke again. I resoldered a new one to the board and I have tested both sides of motherboard
and have 19.5 v on both sides of the board but it
won’t power up. When I put the battery in it powers right up. Is this still a dc power jack problem.
February 5th, 2009 at 10:23 am
I am also aware of two different Gateway laptops that had identical power supply issues about one year out from purchase.
January 10th, 2009 at 4:42 pm
My gateway mx7118 laptop…I already replace new dc jack in it…I see the blue lid is on that is charge the battery…but only problem is it won’t power up. Is there any why it don’t power up?
December 17th, 2008 at 2:32 pm
Systems,
I just fixed broken power jack in a Gateway NX570X laptop. Follow the link for instructions if you need them.