OK, I will have to replace me entire mother.b if I want the socket for the powerplug on my laptop to work, so I was thinking maybe I should just cut the plug off, remove the socket and solder the wires directly onto the motherboard. Only prob is I dont know which connections are pos/neg +/- are on the board where the socket would be soldered in?
Anyway ever done this?? I have no option as the socket wont work and I cannot get it replaced without the board. The laptop is 4 years old so I am not too bothered about hard-wiring it into the back of it.

Anyway anyone got any suggestions on this?? Im trying to fig out which is pos + neg, I could use my multi-meter....

Thanks,

Olie

Give the motherboard a good once over, with magnification, often the +/- is silk screened near the connector, usually very small and sometimes underneath it.

Can you tell how the socket was originally wired to the board? If so, on the back of the ac adapter, there should be a a little picture that looks like two circles, one identified as positive, the other as negative.

This will tell you how the plug is wired. Once you know that, you should be able to figure out how the socket is wired with regards to pos/neg. Once you know that, and if you can see which part of the socket went to which connector on the motherboard, you shold be able to tell which is which...

Hi, sorry for the delay. Here are some picts of the prob.

Any suggestions as how to hard wire this in and remove the socket??

Cheers,

Olie

Another Pict

another

So if anyone could advise what to do with this, that would be great. Electronics aint my thing, so u may have to be a little simple lol.

Thanks.

Olie

If you are unfamiliar with soldering on PCB boards, or are prone to injuring yourself, do not do anything described below! ;)

Ok, from the label on the adapter (1st pic) you can see that the center post is the positive and the outer part is the negative...

Then from what I can tell from pic 2, there are two places where the socket is soldered to the board. The one to the right is where the center post (positive) goes to the board and the one on the left is where the outer part (negative) goes to the board...

Right and left are relative to picture 2, left in this case is the connection closest to the "PJ500"

What you should do now is very carefully use a solder pen to melt the solder holding the socket to the board in order to remove the socket. This will be tough since you're not going to be able to melt them both at the same time.

You may have better luck cutting the socket off with wirecutters or by sawing at it with very sharp knife !!!BE CAREFUL!!!

Once you have the socket removed you can take apart the plug and mark which wire is positive and which is negative (see above)....run the wires through the hole where the socket used to be and tie a big knot in it so that after you solder the wires into the board, if the wire gets pulled, it will tug on the knot and not rip the wires out of the board...

Then it's just a matter of soldering the right wire to the right hole in the board. Don't apply too much heat or you could damage nearby components. Soldering isn't hard, but it's something you get a feel for with practice. If you aren't used to doing it, find someone who is...

Good luck!

Thanks mate! I'll try this as soon as I get my server rebuilt lol...its looks like a long weekend....

Thanks once again,

Regards,

Olie

Update...
What do I do now??? I think there are 3 legs (pins) the 3 go deep into the motherboard.

another surgery pict

Fried socket.

socket pict2

finally...
What should I do??

I appologise for all these picts/post

Regards.

Olie

I had to remove the solder to reveal the 3rd hole.

Thanks...

Olie

Is it the socket itself that is giving you problems? if so, why not just replace it instead of hardwiring the PSU?
Do a google search for electronic components suppliers. In the UK, Maplins, RS, Farnells etc would probably hold them.

It look as if the old socket had two tags that were connected to the sleeve (outer) connection.

These would be the two slots on the M/B that are parallel. check on the reverse of the board and you may well se that there is a track connecting them.
If not, and only one has a track to it use that.
If both of these holes have tracks going to them, connect the two together witha bit of wire as you solder in the power supply.

Good luck!

David

See if you can figure out what part of the socket, internally connected to the mobo. The tab that was hidden may just be an anchor point, it may have no electrical function, or it may need to connect to either the pos/neg...

OK I have removed the MB and have take a shot of what it looks like on the other side.
Note, that a found one of the squares (with solder attached to it) I will try and put it back in.

pict (back view from kinda above).

Note the squre with the missing metal thing (i think its not solder but has solder on it).

The actual piece that fell out. (1 of the 3 blocks).

It looks like one of the tracks has come loose - is the piece that has come off made of copper? it will probably be very thin if so.

If you had problems with your PSU when this one is attached, it could be that this is the 'active' part of the circuit - these types of sockets have 3 connects as you've seen, usually 1 positive, 1 negative, and the other just stabilises the whole thing on the board. the two on the outer part (the two which are parallel) are often connected together - this is as much for convenience as for anything else.

You need to see if there is a track connected to either of the parallel points, including the one that has busted off.
If they are both connected together, then you can simply solder a connector to the one that is still there. If not, and the track leads to the point which has broken, things get a little more difficult. If this is the case, let us know, so we can guide you through it.

Another thought - what is the make and model of the laptop? it may be possible to find a schematic of the MOBO online somewhere if you can give us the details.

OK I have put a multimeter on the piece and run power (from the Supply). Only the 2 pins have current passing thru them.
If this was the pin:
|
| | (the 2 ones vertically above and below are the ones with current). So now I am thinking could it be the MB? Or this piece (tracks) that fell out could have caused the original problem??!??!? Also tho track that fell out would have had current running via it. I think they are made of Copper, but they are silver color..very thin though.

Thanks,

Regards,

Olie

anyone know what i should do now? Just being cautious...

Thanks,

Olie

That is what I was thinking, that that trace was broken, so it caused the no power.

The silver color is solder, what you will need to do is find where the rest of it (broken track) goes to and gently scrape off some of the green protectorant to expose some of the copper underneath, to have a point to solder to.