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Reassembly of laptop took it apart to replace dc power jack

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Reverse of taking it apart.

Posted on Aug 23, 2010

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1 Answer

Power supply blown


You can check your AC adapter by voltmetter in Dc mode, one probe touches inside the plug, other probe touches outside, it should have dc reading if the ac adapter is working.
Your plug is slightly burnt, indicating that the DC jack is broken or loose.
Most DC jack can be replaced if you know how to solder, it costs only under $5.

http://cgi.ebay.com/DC-Power-Jack-Fu...3286.m20.l1116

I believe your DC jack needed to replace and a repair guy might charge you over $150 to replace a $3 part. You should do it yourself if you have a skill to take a laptop apart.


Car Tuning

May 24, 2012 | Computers & Internet

1 Answer

My Eee 4g surf netbook won't charge at all. Upon turning it on, it runs for a second, then shuts off due to a lack of battery power. The charge cable's light is also not turning, so that may


I think your DC Power Jack is bad. The DC Power Jack is where the power cord plugs into the laptop. If it is bad, then a good power cord cannot charge the battery, nor can the laptop turn on once the battery is drained.

You say it smelled burnt, that might mean it took a power surge. I always tell people that before your plug the power cord into the electrical outlet on the wall to remove the other end of the cord from the laptop. That way if you get a power surge you will only damage the power cord and not the dc power jack or motherboard.

Anyway, take an ink pen and push it into the dc power jack and see if there is some movement. The little pin or the casing of the jack should not wiggle.

The DC Jack is soldered onto the motherboard. To replace it you will have to take the laptop apart, desolder the old dc jack and solder a new jack onto the board. Sometimes the DC Jack sits in a slot rather than being soldered. The palmrest and bottom case helps to keep it in place. This type of DC Jack usually has a cable harness that plugs into the motherboard.

Apr 02, 2012 | ASUS Eee 4G Notebook

2 Answers

How to replace dc power jack for toshiba p15


Take apart laptop and see what type of jack is on your system. There are two types. one is soldered on and the other is a module that connects to the motherboard with a wire connector.

If you have a soldered on type the you will need to de-solder it from the board then solder a new one onto the board. most ac jack issue just need to resolder it unless the jack itself is broken.

May 19, 2010 | Toshiba Satellite P15-S420 Notebook

1 Answer

Laptop won't charge


You might need a new battery....you could try removing the battery, plug laptop into ac and restarting. Or you might need a new DC power jack. If you wiggle the cord where it plugs into the laptop, and it starts to charge normally, then the DC power jack needs replacing. http://www.insidemylaptop.com/take-apart-sony-vaio-vgn-s360p-replace-broken-power-jack/

Apr 26, 2010 | Sony VAIO Notebook

1 Answer

How to open the power jack for GQ-zx 5361 laptop . and replace it with new one...


1.ESD wrist ********, connected to a good ground, work on a table.

2.Remove the AC adapter if plugged in, and the battery.

3.Completely disassemble the laptop, down to just the bare motherboard in your hand.

4.Use your soldering station, and I advise using a soldering wick instead of a desoldering tool, on the DC Power Jack leads. Works much better.
Remove the old DC Power Jack, being careful to not burn the motherboard, lifting the circuit traces, and rendering the motherboard useless.

5.Clean the DC Power Jack mounting area with Isopropyl Alcohol, and Q-tips to remove the residue. [WARNING! Isopropyl Alcohol is =>Extremely Flammable. I use the 91% Alcohol version]
Make sure the circuit trace mounting hole has a good tinned surface.

6.Install the new DC Power Jack in the circuit trace mounting holes. CAREFULLY apply solder to the DC Power Jack leads, and be sure to make good solder joints.

7.Reassemble the laptop

Sorry, I don't have access at present to Fry's GQ line of laptops for a Maintenance and Service Manual, to give you a link.

Aug 20, 2009 | Computers & Internet

1 Answer

Acer 5920g no power


Your DC Power Jack is bad, or the area of the motherboard where the DC power jack attaches to, is bad.

The DC Power Jack, is the small port where your AC adapter,(Charger), plugs into.
This is an example of an average DC Power Jack, for an HP Pavilion laptop, not installed in a laptop yet,
http://www.megaemarket.com/dc-power-jack-hp-pavilion-ze4200-zt117420011721182125.html
If you click on the photo it will enlarge.

The DC Power Jack in the photo is upside down, in relation to how it sits on your laptop's motherboard.
Those flat metal pins shown on top, go down through the motherboard, and are soldered on the other side.

1.Sometimes when the 'charger' plug is in the jack, and is bumped, it can crack the solder joints for the DC Power Jack's flat pins. This makes an intermittent contact. Eventually there is no contact at all.

2.Sometimes it's a bad design of the DC jack, and just from ordinary usage of the user plugging in the charger, and removing it, this can crack the solder joints.

3.Sometimes the small area of the motherboard where the DC power jack is mounted, can crack away from the main body of the motherboard.
To explain:
Crude example;
Envision a laptop's motherboard as having a 1 foot square shape. (It isn't. It's irregular shaped) Now on one side attach a 2 inch square. This 2 inch square, represents the area that the DC power jack is attached to. A 'Peninsula', if you will. There are circuit traces that go along a motherboard. Think of them as Very, flat, thin, strips of copper wire. These 'wires' become stretched, and break as the 'peninsula' cracks away from the main body of the motherboard.

Solution?
Have the DC Power Jack replaced, or the motherboard.
DC Power Jack cost? About $6 to $8 dollars.
Labor? $100 to $150.
The tech has to completely disassemble the laptop, to just the bare motherboard in hand. Then unsolder the DC power jack, resolder a new one in, and reassemble the laptop.
Motherboard cost? About $150 on up. Depends on where you obtain it. (Ebay?)
Labor? $100 to $200.

Jul 12, 2009 | Acer Computers & Internet

6 Answers

The dc power jack will not accept power. I have to wiggleit to get the blue light to show that the laptop is charging. My computer is the acer aspire 5920-6423. I dont know how to remove the key board to...


It's a little more involved than just removing the keyboard. You have to
Completely disassemble the laptop, until just the motherboard is in your
hand.

HOWEVER, for this Acer model it's a different installation, than the
normal one. This DC Power Jack uses a small wire harness. You just
unplug the old one, and install the new one. Let me explain,

I'm a tech who normally works on HP, Compaq, IBM, (Lenova now),
and Acer laptops. Acer's that are older than yours. All the DC Power
Jacks that I have replaced, are directly soldered to the motherboard,
and have no wire harness leading off of them. No plug connector on
the end of a harness, either.

In my search just now for a replacement power jack, my findings show
that the Acer Aspire 5920 series have a small wire harness.
Let me show you,
http://www.notebooksolutions.ca/zc/index.php?main_page=product_info&products_id=2977

Here the jack is offered minus the harness. You have to unsolder your old
harness from the defunct power jack, and solder it to the new one.
http://www.laptopjacks.com/view_part/Acer-Laptop-DC-Power-Jack-AC231916.html

You'll find the body of the DC jack is made of plastic. There is a metal
pin in the center. (This is the Positive post. + )
Some DC power jacks have a metal cylinder, or metal tube shape that surrounds the Positive metal center pin. This is the Negative connection.
Some just have a flat metal contact prong in the back for Negative.

If you have your AC adapter plugged in, and the plug is bumped, the metal
center pin can break loose from it's mount. Break loose from the plastic
body. Same thing for the metal 'shell' for the Negative connection, but this
doesn't happen as often.
Again, most DC Power Jacks have metal flat prongs that come out of the
power jack's body, go through the motherboard, and are soldered on the
backside. These solder connections can crack, and break, making an
intermittent connection. Doesn't seem to be the case for yours, IF the
jacks shown are the correct ones.

This may help you in your endeavor to disassemble your Acer Aspire.
(AND reassemble!) (TIP from me. DEFINITELY buy an ESD wrist strap
and connect the alligator clip to a good ground. They only cost about
$5 to $7 dollars. They are to relieve static from your body. Electro Static
Discharge wrist strap)
1.http://www.insidemylaptop.com/taking-apart-acer-aspire-5100-laptop/
2.http://repair4laptop.org/disassembly_acer.html

Jun 22, 2009 | Acer Aspire 5920-6727 Notebook

2 Answers

Acer 9100 dc jack broken


search ebay for a DC Jack for your model. Disassemble your laptop. Desolder the broken DC Jack from the laptop motherboard. Solder the new DC jack onto the motherboard and reassemble laptop. If your not experienced in soldering of disassembling laptops I would recommend you hire someone to do this job. If you wish contact me jason@jrdtech.net

May 13, 2008 | Computers & Internet

3 Answers

Dell Inspiron 2200 loose DC power pin connector


hi, the power jack must be removed by a strip out and de solder of jack and a new one fitted. I was lucky a guy took £30 for the job.

Feb 17, 2008 | Dell Inspiron 2200 Notebook

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