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bypass AC power adator and solder wire diretly to motherboard.

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#1 LollieOllie


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Posted 14 March 2010 - 12:31 PM

bypass AC power adator and solder wire diretly to motherboard.

How I do know which wire to solder it to?
My husband has tried all the pins. Everytime he did this it shorted the charger out. But as soon as he disconnects it the power supply starts working again

Our son's acer laptop's powersuupply has never made good connection (jack where you plug the pwoer supply into the side of the laptop) Now the whole jack broke off the mother board.

My husband is dumbfounded because when he solder the wire to the mother board the power supply willnot workd

Any and all help appreciated.


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#2 computerxpds


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Posted 14 March 2010 - 03:19 PM

so the whole pin and jack that was soldered to the motherboard broke off?

Edit: Also could you specify what exact model acer it is please.

Edited by computerxpds, 14 March 2010 - 03:23 PM.

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#3 garmanma


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Posted 15 March 2010 - 01:15 PM

The DC Jack ( if it is the round type ) has 5 total pins that must make contact before charging will complete. 2 for Positive voltage, 2 for negative voltage, and 1 to tell the laptop that the correct Power Supply is attached. This 1 single pin if broken, loose, or whatever other reason, will stop the laptop from charging the battery. Without this pin, the laptop will run on the power supply alone but will either not charge at all or charge intermittently. This is normally a simple fix for a competent electronics repair shop with "fine" soldering experience.

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#4 techextreme


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Posted 15 March 2010 - 02:15 PM

Acer at this point uses more than 14 different DC jacks that I know of. With that said, it's possible to replace just the DC jack and return the laptop to original condition.

The other half of the equation is the power supply. The portion that plugs into the laptop can have the wires broken internally and only make contact "every once-in-awhile". This along with the DC jack being broken or "loose" can result in the scenario your are describing.

If you can tell us what model Acer laptop you have I can point you to just the DC jack. But, if you have cut the end from the power supply, I would recommend replacing that entirely.

Hope this helps,

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