ASUS G74 Laptop Charger Question

Hi there,

I had to replace my genuine ADP-150NB D charger with another one claimed to be exactly the same, looks identical. I bought it off Ebay, cost me 80 dollars.
I noticed that it had the SAME issue after a day of using it. What i found was something worth getting looked at. The end of the cord that goes into the laptop has a small small pin inside it centered, now this moves back and forth and rattles if you tap it with your finger or just move it up and down gently. I researched a bit and found that its called Signal Pin? correct me if I'm wrong? and it has a 0v output but just tells the charger how much current it needs to send or something? Is this supposed to be loose?

Also, the whole metal part around is literally burning hot depending on where the pin inside is sitting,

When i took it back to the bloke i bought it off, he told me its to prevent from pushing the plug into the laptop too far? is this a load of crap, he said all the chargers of this kind do it.

Thoughts?

 

Did that item have a part number replacement match yours? If not then you bought the wrong charger type. You have to be detail when making such orders as this not all chargers are created equal and for a laptop as yours you shouldn't go cheap charger as you noticed. Spending a little more on charger for a high power laptop as yours will save you not only battery life but laptop workability in the long term. Look at the charger model and part number and see if that matches up with your factory charger and if return it and get the right one that matches it even if it does cost a little more.

 

That pin is indeed the "signal" wire. It's what makes contact with the DC jack on the laptops board to provide an electrical current. I don't know about it preventing you from "pushing it in too far", as it's just a contact wire; I don't think it serves that purpose, but I suppose it depends on the specification.

 

Thanks for the replies, anymore suggestions as to why this pin rattles up and down?

Bump Bump

Yeah, its exactly the same charger i got with the laptop when i bought it, same model

 

The G74 uses the same jack as the g73 so i would guess it's probably a bad dc jack that's heating up due to a short. There's a tutorial on how to replace the dc jack in my sig, that'd probably be your best bet.

The "signal pin" which passes the 19+ volts though the dc jack probably has a crack and isn't making the best connection. I've replaced a handful of dc jacks on the g73 series and usually that's the major flaw. As for a pin in the end of the charger, i have never seen that. I hope you mean in the laptop, because if you have a pin in your charger you need to remove it.

Check out the dc jack replacement tutorial and get to work.

EDIT:

I should also add that if the cord doesn't have a right angle at the end you can buy a right angle adapter. This fixes the horrible design flaw where the cord comes straight out of the computer instead of routing the cord to the back of the computer.

Here's a link to the right angle adapter
Right Angle Converter for 5 5 x 2 5mm Power Connector | eBay