Anyone here an expert on laptop repair?
Page 1 of 1
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 08:45    Post subject: Anyone here an expert on laptop repair?
OK, so this is the deal. I have a shitty laptop, with a known defect. Basically the power jack breaks away from the system board, meaning you have to wiggle the AC adapter jack to get it to charge the battery. And by wiggle, I mean I bent the fuck out of the adapter and broke it, so I had to buy a universal power adapter for it.

I have a Toshiba A70 btw, problem is documented here:

disassembly guide:
http://www.irisvista.com/tech/laptops/ToshibaA75/satA75_1.htm

power jack repair:
http://www.laptoprepairguy.com/wp-images/Satellite-M35X-crack.jpg



so I got a new jack off ebay, took the bastard apart!



replaced the jack (the old one fell off immediately) and soldered the connections. Now let me tell you, I haven't really soldered shit before. It is possible to do it wrong? Like fry parts of the board around the connections?

here is the soldering job btw:


so after I did this, and tried plugging the thing in, nothing. now, the system board seems to have connections that just sit on where the battery comes from (I think, since there were no actual cables to disconnect the power supply (battery) from the board.

Am I being retarded and completely missing something? This is too expensive to pay to get fixed, so i need to DIY this motherfucker. is there someway to test that power would make it through?

Thanks for any suggestions. I pfffftttted at my girlfriend when she asked me if I could fix it myself, so I want to get this thing running again ASAP Smile


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
KrAzY-KaMeL




Posts: 2248
Location: City Of Compton
PostPosted: Wed, 31st Jan 2007 09:10    Post subject:
That's some ghetto shit right there.
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Wed, 31st Jan 2007 09:25    Post subject:
Whats the wattage of the iron and how long did you keep it on the part you were repairing?


Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 09:32    Post subject:
hehe ... so that shit matters eh? Razz


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 09:34    Post subject:
KrAzY-KaMeL wrote:
That's some ghetto shit right there.


there was a class action suit in the US for this

http://www.a70m30xsettlement.com/

just an extra year of warranty though ... mine is 3-4 years old anways...


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 09:38    Post subject:
jenni, it was 120V 45W , I used 'electronic rosin core solder 60%tin/40% lead', barely touched it ... but shit, I probably mucked about on the board around the pin with the iron tip a lot Neutral


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Wed, 31st Jan 2007 09:49    Post subject:
45Watts is way to high for circuit repair. You need something like 12 of 15 watts.
Have you got a multimeter?


Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 10:20    Post subject:
Jenni wrote:
45Watts is way to high for circuit repair. You need something like 12 of 15 watts.
Have you got a multimeter?


no, I borrowed the solder and iron off my step-dad, he's used it for his own repair before (nothing much really) ..

I can get a multi meter though off my bro ... how would I test the connection?


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 10:26    Post subject:
I should try to add too .. I tried to melt the solder above the pin and let the liquid drop on it.
yeah, I know that's not how you're supposed to do it, it took a while Razz


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Wed, 31st Jan 2007 11:08    Post subject:
Trying to work out how that jack would work. I'm on that laptop site you mentioned. As long as none of the solder has dropped into the jack you should be alright.

Okay it sounds like a trace is broken inside the hole. Was the jack actually loose?

http://www.laptoprepairguy.com/laptop/2006/01/28/toshiba-satellite-m35x-a75-power-jack-problem/
try that.

Use the multimeter or circuit tester on the top trace and it's corresponding trace at the bottom.


Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Wed, 31st Jan 2007 11:44    Post subject:
Actually Nouse I wouldn't repair it like that as it's obviously a design fault and will just malfunction again.

If you don't mind a lead dangling out of the laptop I would repair it like this:
http://www.laptoprepairguy.com/laptop/2006/05/27/failed-laptop-power-jack-workaround/


Back to top
Th3Plan
Banned



Posts: 134

PostPosted: Wed, 31st Jan 2007 16:55    Post subject:
Jenni wrote:
Actually Nouse I wouldn't repair it like that as it's obviously a design fault and will just malfunction again.

If you don't mind a lead dangling out of the laptop I would repair it like this:
http://www.laptoprepairguy.com/laptop/2006/05/27/failed-laptop-power-jack-workaround/

now thats pure ghetto style Very Happy but attest it works
Back to top
deelix
PDIP Member



Posts: 32062
Location: Norway
PostPosted: Wed, 31st Jan 2007 19:15    Post subject:
Just HP laptops. Changed 10 screens on nx6110 and nx6310
Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 19:39    Post subject:
Jenni wrote:
Okay it sounds like a trace is broken inside the hole. Was the jack actually loose?

Use the multimeter or circuit tester on the top trace and it's corresponding trace at the bottom.


yeah, the old jack practically fell off when I removed the board.

I will try to track down a multimeter and test the traces on the top and bottom.

I don't really want to do the really ghetto 'moving the power jack outside the laptop' thing ... I really only plan on having this POS for another year or so, or if it does it again, I'll just throw the friggin thing off the balcony.

anyways, I'll report back when I have the multimeter Smile


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Wed, 31st Jan 2007 22:27    Post subject:
You don't really need a multimeter after giving it some thought.
If you're going to do an internal repair then run a wire from the top trace over the side of the motherboard to the bottom trace.

If you need an illustration on how to do that just ask.


Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Wed, 31st Jan 2007 23:31    Post subject:
Jenni wrote:
You don't really need a multimeter after giving it some thought.
If you're going to do an internal repair then run a wire from the top trace over the side of the motherboard to the bottom trace.

If you need an illustration on how to do that just ask.


asked Smile

when I get home from work in a bit I'll take a better picture and maybe you can just draw some stuff on that instead?


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Thu, 1st Feb 2007 00:16    Post subject:
Okay take a photo of both sides of the motherboard at the point of the jack.


Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Thu, 1st Feb 2007 00:28    Post subject:
ok fuck, I realize I have to take the power jack off first (right?) Neutral

already took the pics, don't have time at the moment to bust all my shit out and take the jack off... so that'll have to wait until later, hopefully I can get at it tonight. should I be worried about using such a powerful soldering iron so many times? what's the worst thing that can happen if I happen to touch a bit of the board with the iron?

so here they are anyways, since I didn't really think about needing to take the jack off until just right now... at least you can see it a little better...






asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Thu, 1st Feb 2007 00:56    Post subject:
Okay the yellow line represents the wire you need to install.
Although to get to the soldering point on the top of the mobo, you'll probably have to remove the jack again.
Bottom of the mobo

Top of the mobo


Back to top
arw




Posts: 1281
Location: Barry - Wales - (UK)
PostPosted: Thu, 1st Feb 2007 01:31    Post subject:
Follow Jennis advice and you you will be ok...First get a new iron 45 watt is way to hot you start touching the tracks with that and your going to burn them off...Get a 15 watt no more..

My bit of advice is do some practice work first as you will more than likely burn some of the tracks off (Even with a 15 watt) and then you will need to repair them aswell..
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Thu, 1st Feb 2007 02:40    Post subject:
Well the trace terminator is so large that I doubt he'll burn it off. But there is always that chance. But I bet with a 45watt iron it has a tip like a spade.
You may need to get a fibre glass pen to remove the resin though.


Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Thu, 1st Feb 2007 08:16    Post subject:
I can't find a 15W soldering iron .. will 25W be better? it's only $10, 5 minute walk away ...and yeah, the tip on the 45W is awesome Neutral





ok, some questions ....



1) ok, see the red arrow. now am I trying to attach the wire to anywhere on the light green bit, or there is also a small round bit of something metallic there too (right where the arrow is pointing)?

2) about resin, you are talking about soldering resin? that shiny shit all around the solder joint? google turns up that I can clean it with rubbing alcohol, so i can try that.

3) do I have to get something special (solder wick) to take the jack off again? or can I just melt the solder with the iron and pull it off?

4) can I use any old wire to do this? I have some wire that was the power for a small fan at one point, before I ripped it off.

5) about traces, is there a way to tell if I fuckzored it already with this hotass iron?


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Thu, 1st Feb 2007 10:07    Post subject:
1 You'll need a multimeter to check that small solder point. It looks like it's breeched the main leg of the jack but check to see if you get a circuit by touching that and the main solder point.

2 Never heard of alcohol removing resin. The resin is that green material covering the circuit.

3 solder braid or a solder pump would do. Braid is easier to use and cleaner.

4 It will have to be some pretty heavy duty wire or you'll be turning you laptop into an electric fire. Smile

5 You'll see if you've lifted a trace. Looking at your photos I can see that you haven't.

25watt although not ideal, should be alright for a job like this.


Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Thu, 1st Feb 2007 16:01    Post subject:
ok thanks jenni, I'm going to wait until the weekend to pick up that multimeter from my bro and the new iron from the store ...

then the fun will start Smile


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
nouseforaname
Über-VIP Member



Posts: 21306
Location: Toronto, Canada
PostPosted: Thu, 1st Feb 2007 16:55    Post subject:
Jenni wrote:
1 You'll need a multimeter to check that small solder point. It looks like it's breeched the main leg of the jack but check to see if you get a circuit by touching that and the main solder point.

2 Never heard of alcohol removing resin. The resin is that green material covering the circuit.

4 It will have to be some pretty heavy duty wire or you'll be turning you laptop into an electric fire. Smile


ok, more questions Razz

1 and 2) can I just run the wire then from the main soldering point on the pin (so do both at the same joint)... I guess I don't get exactly what I'm supposed to scrape off ...

I am going trying to follow this guide btw:
http://www.circuittechctr.com/guides/7-2-1.shtml


asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"
Back to top
Jenni
Banned



Posts: 9526
Location: England.
PostPosted: Sat, 3rd Feb 2007 17:59    Post subject:
Just scrape off a bit of the small lighter green resin. Solder onto that and route the wire onto the top of the board.


Back to top
Page 1 of 1 All times are GMT + 1 Hour
NFOHump.com Forum Index - Hardware Zone
Signature/Avatar nuking: none (can be changed in your profile)  


Display posts from previous:   

Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB 2.0.8 © 2001, 2002 phpBB Group