Repairing Dell Laptop Power Lead

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leachim

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Apr 21, 2004
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1,144
The dog chewed the lead before the tip that goes into the laptop

I am cutting out the bad bit and resoldering it together.

Found there are 3 cores - earth sheath - voltage wire and in the middle of that, another small insulated cable

I don't know what this bit does - is it important to join this also ?

Thanks
 

Ent

Josiah
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Apr 11, 2009
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leachim, I don't know the answer to your question.
However, I would strongly advise you to simply replace the power cable. If you make a mistake, or if your dog did damage you haven't detected, it could become a serious hazard (perhaps a fire risk or a risk of damage toward your laptop.)
A new adapter is much cheaper than the kind of damage you'd risk causing.
 

Frank4d

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Sep 10, 2006
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9,126
Dell power adapters have three wires which are 19 VDC (about), GROUND, and a status wire that tells the laptop there is a Dell compatible charger connected. Without all three wires connected, the laptop won't charge the battery.
 

leachim

Thread Starter
Joined
Apr 21, 2004
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1,144
Thanks anyway

The middle core may be something to do with a feedback system telling the laptop whether it was the correct power supply or not.
 
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