Question about Micro Electronics WinBook J1 Notebook

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I can't plug the power jack into the computer because the recepter pin is broken off inside.

How do I disassemble my Winbook J1 laptop in order to replace the power connector pin.

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  • ikkenom May 11, 2010

    Since you don't seem to be a certified technician, do not even try it. A certified technician can do it, without damaging any other parts, within one hour. Money well spent!

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Dropped toshiba PSC2EU-00U02H and brock power jack and charger


MOST power jacks are repairable, though they require an experienced person to disassemble the computer and replace the jack. Older laptops have the jack soldered to the motherboard and require a complete disassembly, while newer laptops have the power jack on a wired connector that plugs into the motherboard (MUCH easier to fix).

Here's a link to YouTube video for a Toshiba Satellite C655 (I think that's your model) that shows the entire procedure:
http://www.youtube.com/watch?v=Q76HHXJVvAg

You can check with local computer repair services in your area, though I generally find better prices online.

If the Charger plug is broken, you can order a replacement charger online as well.

Dec 29, 2012 | Computers & Internet

1 Answer

Broken central pin on power jack of Asus Eee PC 1015ped


I realize I'm providing a solution to an older problem, and may never hear back from the original poster.
I am providing a solution because in the event it may help someone else.

The center pin you state is part of the DC Power Jack. The jack on the laptop, that the plug from the AC adapter (Charger) plugs into.

The center pin is the Positive connection.
The outer metal pieces, on the inside of the cylindrical shape surrounding the center pin, make up the Negative connection.

http://www.lapdiy.com/asus-eeepc-eee-pc-1015ped-netbook-dc-power-jack-connector-p-581.html

Click on the two views shown of the jack to enlarge.
The view on the left, shows how the jack normally sits on the motherboard. Front faces you, and in upright position.

The view on the right shows the jack upside down, and the back faces you.
Note the 4 metal tangs which protrude up. Each has a squarish hole in it.

These tangs go through the motherboard, and are soldered to the motherboard. These tangs are Negative connections.
They connect to the metal pieces inside the cylindrical shape.

Looking at the Back of the jack, (Right view), you see a metal tang coming out of the center.
This tang is the Positive connection. It attaches straight to the Center Pin.

To replace the DC Power Jack, the Eee needs to be completely disassembled down to the motherboard in your hands.

(Observe Anti-Static Precautions. Use an ESD wrist strap. Average cost is around $3 to $6. Connect the alligator clip to a good ground source.
{ I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case )

The broken DC Power Jack is c-a-r-e-f-u-l-l-y removed from the motherboard, and after the area is prepped, the new DC Power Jack is soldered into place.

http://www.youtube.com/watch?v=_2htZGio8es&feature=related

Regards,
joecoolvette

Oct 20, 2011 | ASUS Eee PC 1005HA-PU1X-BK Netbook

2 Answers

I have an Acer Aspire One and when I plug the charger in I have to spin it or wiggle it or both to get the battery to charge. Once I have it in position it generally stays on charge, but if the cable is...


It could be either one Sarah.

The AC adapter's (Charger) cable, or the DC Power Jack where the AC adapter plugs into the laptop.

This is an example of the DC Power Jack not installed,

http://www.laptopjacks.com/view_part/Acer-Aspire-ONE-AOA150-ZG5-DC-Power-Jack-AC351816.html

(You can click on the three views of the jack to enlarge)

1) Check the DC Power Jack to see if it's in good repair.

Battery removed use a small flat tipped screwdriver, and Gently see if you can move the Center Pin around in the jack.
See if the Center Pin will move side to side a small amount. There is supposed to be No perceptible movement.

Referring back to the closeup photos of the DC Power Jack, the flat blade-like prongs are upside down, in relation to how the jack sits on the motherboard.

The flat prongs go down through the motherboard, and are soldered to the motherboard.
If the center pin of the jack is stationary, but the jack as a unit moves around, one or more solder joints, (Connections) for the flat prongs may be cracked.

The repair consists of completely disassembling the laptop, removing the broken DC Power Jack, and installing a new one.

Acer Aspire One service manual,

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

(Click on the blue - One - in Aspire One.
This is a PDF file. The computer you are using now has Adobe Reader on it which uses PDF files.
After you click on the file name (One) it may take up to 30 seconds before you see the first page.
It may also take additional time for the file to fully download.

(Took 12 seconds just now for full download)

No perceptible movement of the DC Power Jack? Suspect the cable of the AC adapter right near it's plug. (Plug that plugs into the DC Power Jack)

For additional questions please post in a Comment.

Regards,
joecoolvette

Jun 25, 2011 | Computers & Internet

1 Answer

Powerjack is loose when plugging in charger.no power,no lights battery can not be charged.


In order to fix this problem, you will have to fully disassemble your laptop to get access to the motherboard & the power jack. If the power jack is not broken but only loose, you can re-solder it to the motherboard. Otherwise, you will need to buy a replacement power jack (usually less than US$ 10), de-solder the broken power jack, & then solder in the new one.
When this is done, re-assemble back your laptop.

Nov 27, 2010 | Acer Aspire One PC Notebook

1 Answer

Laptop won't power on with ac adapter or battery


Could be a combination of things.

1) Battery is low. Not enough power to turn the laptop on.
Caused by;

2) AC adapter has a plug on the end of the cable. The plug plugs into a DC Power Jack on the laptop.

The DC Power Jack is bad.

2a) The DC Power Jack has a bad connection to the motherboard, (Cracked solder joints), and/or the jack itself is bad.

2b) Center Pin is loose in the jack's mount.
The back of the Center Pin where it mounts has become loose.

2c) The plastic body of the jack, which composes the jack's case, is cracked. This allows movement of the Center Pin.

2b, and 2c cause a bad connection with the AC adapter plug.

No charge to the Battery, no power to the laptop.

http://www.laptopjacks.com/view_part/For-Gateway-MX6920-DC-Power-Jack-GW51425.html

[ If this is the case the DC Power Jack needs to be resoldered to the motherboard. The cracked solder joints need to be re-melted, (Reflowed)
Entire laptop needs to be disassembled down to the bare motherboard in your hand.
(No Processor, Ram Memory, or any adapter cards mounted to the motherboard. Nada)

OR,
The DC Power jack needs to be replaced.
This entails disassembling the entire laptop, down to just the motherboard in your hand. (Same as above)

The old DC Power Jack is de-soldered, and a new one soldered in place.

Very FEW computer repair shops have the necessary skill level.
They just want to replace the entire motherboard.
IF one is available.
More Ka-Ching for them also. ]

3) The AC adapter is bad.
Not providing power to the laptop, to charge the Battery, nor give power to the laptop without the Battery.

AC adapter cord from adapter to plug, which plugs into the laptop, (DC Power Jack), may have a break in it.

May be an intermittent contact provided by wiggling the cord.
If this is the case the wires have stretched, and broken.
Wiggling causes the wires to briefly touch, and make contact.

Where this cord meets the plug itself. A lot of times there is a break in the wires in this area.

Solution is to replace the AC adapter. There are universal AC adapters you can buy, or perhaps Gateway still has some for sale.
(Ka-Ching)

Oct 21, 2010 | Gateway MX6920 Notebook

1 Answer

Cannot power up or charge battery. Power supply is working. Does the power receptical commonly break from the motherboard?


DC Jack diagnosis:
1. Test power adapter for output voltage. Bend the power cable in various directions while doing this to be sure that there is no broken conductors in the cable.
2. If power adapter is Ok, connect it & see if the power LED on the laptop will glow when you jiggle the power connector in various directions. If yes, then the DC jack might be loose or damaged, & need to be either re-soldered or replaced.
3. If not, then disassemble the laptop. Remove any components that attach to the laptop's motherboard first (e.g. battery, hard drive, RAM, wireless card, optical drive, ... etc.)
4. Next, remove the keyboard & the LCD screen.
5. Finally, unscrew all screws that hold the upper cover & lower cover together so that you could gain access to the motherboard.
6. Inspect the solder points connecting the DC jack to the motherboard. Make sure that none of them is loose. If any, re-solder them.
7. Inspect the center pin in the DC jack. Make sure that it is not broken or loose. If it is, then you might need to replace the DC jack.
8. When you are done, re-assemble back the laptop.

Oct 03, 2010 | HP Pavilion ze4420us Notebook

1 Answer

Bumped computer on door casing..power female connection broken inside. how easy to fix???


The DC jack, where you plug the power adapter cable, might be loose or defective, & needs to be either re-soldered or replaced.
In order to do this, the laptop needs to be disassembled & the motherboard taken out. Also, the motherboard needs to be checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether.

Sep 16, 2010 | Acer Aspire 5000 Notebook

1 Answer

Toshiba plug-in ac adapter LCDlight flashing and wont boot up


It may be that you need a new, (Or good condition used), motherboard. You may not.

The problem could be the DC Power Jack. The DC Power Jack is small, and the body is made of plastic. Sometimes there is a metal shell around the plastic body. (The jack is a rectangular shape, and is just a little larger, than the outside portion of that AC adapter plug!)

This is an example of a DC Power jack for a Toshiba Satellite a215-s5807,
http://www.notebookworks.net/ProductDetails.asp?ProductCode=NBW52-0133

As you know there is a metal pin in the center, and at the back of the round hole, there are flat metal contacts.

Let me explain the construction of a DC Power Jack, and how it's mounted to a motherboard. This all has relevance to the solution.

Your laptop uses DC electricity. (The AC adapter converts AC to DC. Your laptop battery, and a flashlight battery, are examples of stored DC electricity)

DC uses a Positive connection, and a Negative connection. The metal pin in the center is Positive. The flat metal strips at the back are Negative.

That laptop DC Power Jack has metal prongs, that come out of the plastic body. One prong, (Or pin), connects to the Positive metal round pin, in the center of the jack.
There may be one, or two prongs, (Or pins), that come out of the plastic body, and connect to the Negative side of the jack. (Flat metal strips)
These prongs go down through holes in the motherboard, and are soldered on.

With the AC adapter plugged in, an accidental bump on the plug itself, could break the body of the jack, or break solder joints that hold the jack to the motherboard.

AC adapter removed, and battery removed. Use a NON-metallic object, and see if you can make the center pin of the jack move. See if the entire jack itself seems to move.
A.If the center pin moves, you have a broken DC Power Jack.
B.If the entire jack moves, you have cracked solder joints. (Broken)

Replacement of the DC Power Jack for A.
Re-solder the solder joint/s for B.

Cost of replacing a jack at a reputable computer repair shop? $90 to $150
Cost of re-soldering solder joints? $50 to $90
Cost of replacing the motherboard?
$250 on up.

If you are a skilled person with the correct tools, it is feasible for you to replace the jack, or re-solder the solder joints.
It is also feasible that you yourself, could replace the motherboard.

Some laptops have a poor motherboard design, for where the DC Power Jack is mounted to the motherboard.

Crude explanation would be, that the main body of the motherboard is a 1 foot square. Then a 2 inch square comes out of the side of the main body.
The DC Power Jack is mounted to that 2 inch square. From accidental bumping, OR just normal usage of inserting, and removing the AC adapter plug, this 2 inch square can crack away from the main body.
This, of course would require a motherboard replacement.

Disassembly instructions for a Satellite A200 and A205 Series laptops. Very close to the A215 Series,
http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/laptop-disassembly-1.htm

(Don't forget to buy, and use a cheap ESD wrist strap, to prevent static shock to the delicate hardware components, inside your laptop. Average cost is $7)

Aug 04, 2009 | Computers & Internet

2 Answers

Power Connection


The solution is to repair/replace the power pin assembly. Available on the web for $ 10-$20. Should only take you a couple of hours to disassemble, repair and reassemble the laptop. In the meantime you can get one of these to help hold the plug in the "right" position. Every laptop should come with one.

Jul 30, 2008 | Dell C600 (002UH) Motherboard

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