Laptop power adaptor keeps burning

[da_ging]

I'd open it up and check what condition it is in first and post some pics if your not sure about it

what laptop is it anyway?

[looney]

^ its an advent 7102

i opened it up and one part of the dc socket is burnt, so it defo is that, and the new adaptor came and the laptop still did not work, might put some pics later, the tricky bit now is fixing it, cost on parts and equipment might be expensive.

[da_ging]

the socket you want I'm pretty certain is this one , delivery is £2 odd so under a fiver for the socket total

http://www.laptopandspares.co.uk/pro...products_id=77

and as for a soldering iron any cheap one should do 25 or 30 watts will work, you should be able to pick a kit up with solder etc for under a tenner

[GoNz0]

ebay a soldering iron kit while your at it, dont forget the solder braid and a flux pen as well, all for under £20

[looney]

if the socket is under a fiver then thats decent, not sure what socket number the laptop uses but the pj14 and pj11 both are under £5 it seems.

there is a solder kit at home already, but dont have a rosin solder wire which is the one needed? but i read not long ago that inhaling the fumes from this cause cancer what kind of solder wire would i need? also i dont have a desoldiering pump and i looked at maplin and it costs a bloomin £12! is there any other ways of removing solder?

heres an image of the burnt socket:



was hoping i could just resoldier the existing one on again, but it seems fubared?

[GoNz0]

you can bypass it if you can solder the pin from the other side, then route a wire to the next solder point on the track, you will need a multi meter to make sure its the correct track though!

solder braids a couple of quid and it soaks up solder

[looney]

does anyone know how i can find out the model for the dcjack? ie whether its a pj11 or pj15 etc, it doesnt say anywhere what model it is :unsure:

the laptop is a advent 7102

[GoNz0]

if your so unsure buy both, there only a few quid

[peterb]

<---snip

i read not long ago that inhaling the fumes from this cause cancer what kind of solder wire would i need?

snip--->

There is a risk that long term exposure to rosin based solder fumes may cause occupational related astma, and short term may exacerbate existing asthmatic conditions. However a one off job is unlikely to cause a problem (unless you are an asthma sufferer, but it would be advisable to avoid breathing the fumes directly. That can be tricky if you are bending over the work piece, as the fumes rise vertically. That said, I used to use solder quite a lot at home, and it hasn't caused me any respiratory problems! The dangers are really for people who are operating soldering equipment as part of there work on a daily basis, and then fume extraction protection is required.

A Google search using the terms solder flux fumes will find more authoritative references.

As for the job itself, solder braid will remove the excess solder, although IMHO a solder pump is better. If you have never used a soldering iron before, you may want to practice first on pieces of wire.

If it is a new iron, you should tin the bit first (with solder)

When you come to make the joint apply a little bit of solder to the bit, then place the solder bit against the joint to heat it up. Then when it is hot, apply the solder to the joint (not the iron) then remove the solder and iron and wait until the joint has cooled.

You need to avoid heating the joint too much to avoid damaging the components and do not carry the solder to the joint on the iron! It isn't difficult, but it does need a little practice first.