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ASUS K52F Motherboard removal

I need to replace the DC jack on my ASUS K52F motherboard. Do you have any dissambly instructions to remove the motherboard?

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  • ASUS Master
  • 5,660 Answers

NO












OH, I'm JUST KIDDIN'!

1) http://www.insidemylaptop.com/disassemble-asus-k-series-notebook/

2) http://ncandelier.free.fr/dem/ASUS_K52.pdf

Buy, and wear an ESD wrist strap, or use your motherboard for a Frisbee. ("Wow! Look at that THING Go!")

Use a multi-compartment container for the various screws you will remove.
Label each compartment for the area the screw/s come out of.
SOME screws look VERY similar to other screws.
Advise DO NOT mix them up!

Make drawings, and notes as you disassemble.
Use a digital camera, or video camera, or at least a phone camera, and GOOD lighting.

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/

You don't need a Soldering Station.
A low wattage soldering iron (25 Watt?), Rosin Core solder, rosin paste flux, paste flux brush, Desoldering Braid. (Solder Wick)

[I will use Desoldering Braid over a Solder Su-cker tool, ANYDAY.
(Desoldering Tool) ]

http://www.laptoprepair101.com/laptop/2008/10/28/fortify-damaged-power-jack-connection-in-laptop/

For additional questions please post in a Comment.
Regards,
joecoolvette

Posted on Jan 14, 2013

Testimonial: "Thank you... Thank you ... Thank you. The pdf document was exactly what I needed. Thanks joecoolvette!"

  • joecoolvette
    joecoolvette Jan 17, 2013

    You're very welcome, and thank you for the rating!

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1 Answer

"k55A" dc jack replacement


Hello Kenneth,

The dc jack replacement cable connects from the white connector to system board and the connector where you connect the adapter lay on the edge of board usuallyc6c10d03-2117-4a84-8cc2-a16171601653.jpg

I like to use a litte bit of super glue to keep it held in place on the board.

Gotta remove some components to access it .

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ASUS K52F bios password reset


So you removed the CMOS battery from the motherboard and the password is still set? That means you will have to go to your manufacturers site and look for manuals and documents. Look in them for resetting the bios password. Most likely you will have to jump the password by shortening out or removing a pin on the motherboard. There should be a label on the motherboard that says PSWD for the bios password jumpers.

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1 Answer

Dissamble asus ulcpc to access power supply


LOL, You need detailed instructions on how to disassemble a laptop? You do of course know that every model is different, right? Instructions would have to be high level or it would take a book to give you details. If you don't know what you're doing I suggest you take it to a computer repair shop. Actually taking the laptop apart is the easy part for the task you want to do. The hard part is desoldering the dc jack that is already on the motherboard and then soldering a new one in it's place. Desoldering and getting the old dc jack out is a task and if you put too much pressure on the motherboard you could crack it or break something off.

So to take it apart you take all the screws off the bottom of the laptop, remove the hard drive, remove the cd drive, remove the battery, remove the wireless card, remove memory. Some of the things we just removed might be secured with screws and some of them once they are removed will surely have screws that were under them that attaches to the motherboard. Then you have to turn the laptop over, remove the piece that is right above the keyboard that normally has the power button on it. Be careful, sometimes there is a cable attached to it. Then you remove the screws that hold the keyboard and carefully pull the keyboard out because it most definitely has a cable under it. Then you remove the lcd by removing screws from it's hinges, and remove the cable that plugs into the motherboard and carefully pull the wifi cable that runs from the lcd, then down under where the keyboard sat, and through a slot that gets it to the bottom of the motherboard. Once you remove the lcd, you start removing screws that hold the palmrest to the motherboard and when you lift the palmrest be careful because there are cables such as the mouse and touchpad under it. Then you start removing screws that have the motherboard attached to the bottom case. Once they are removed you can lift the motherboard out but be careful because there will be other cables attached to it that you'll have to take off such as the cpu fan cable, etc. One you have the motherboard out you might have to remove the heat sink and fan that is secured by screws and the head sink has a coat of Thermal Paste on it that you'll most likely want to replace otherwise you have the risk of overheating. Once all that is done, now you have to start desoldering to pull the old prongs out that was holding the dc power jack to the motherboard (this part alone will take well over an hour), Then pop the new jack in it's place and start soldering it. Then pray to God, Allah, Buddha, Jehovah or whoever it is you serve that you can put it all back together and that it works!!!!!

Mar 22, 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

How do I check for faulty DC socket (power jack) in my asus eee pc


1) Start out by removing all power to the laptop.
Of course you probably have the AC adapter (Charger) removed, but also remove the Battery.

See if you can gently wiggle the Center Post.
Also look to see if it seems that the entire DC Power Jack is moving around.

You may have to scrutinize pretty close to see any perceptible movement.
There should be No perceptible movement at all.

This is an example of a DC Power Jack for an Asus Eee 1005HAB Notebook PC.
It may, or may not, be The DC Power Jack you will need, but is used here for an example of the DC Power Jack construction,

http://www.rolta.co.uk/new-asus-1005hab-laptop-power-jack-pin-socket-dc-connector-165mm-29396-p.asp

You can click on any of the three views shown, and have all three views enlarged.
Click to enlarge.

Looking at the view on the far left, the Front view. You will see what appear as three pins sticking up.
These are Prongs.
Shown again in the Back view, which is the middle example.

These two views show the DC Power Jack upside down, in relation to how it sits on the motherboard.
The Prongs go down through holes in copper circuit traces on the top of the motherboard, and are soldered to the motherboard on the bottom side.

A) From accidentally bumping the AC adapter's plug while inserted into the DC Power Jack, the solder joints may have cracked. This can also happen with just normal usage from plugging, and unplugging the AC adapter.

Solution for this is to re-solder the cracked solder joints.
Sounds easy, but in reality the entire laptop has to be disassembled down to the bare motherboard in your hand. No Processor on the motherboard, no Ram Memory, no nada, but the bare motherboard.

Soldering can ruin a Processor, Ram Memory, or associated hardware components still installed on the motherboard.

B) The DC Power Jack may be broken. The Black body of the DC Power Jack that you see in the examples, is made of plastic.
This entails de-soldering the Prongs of the DC Power Jack, removing it, properly cleaning the area, (area around the copper circuit trace holes in the motherboard), re-tinning the area around the circuit trace holes, then installing the new DC Power Jack, and soldering it into place.

This is a basic example of DC Power Jack replacement,

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/


C) The motherboard area that the DC Power Jack is soldered to, can be compared to a 'Peninsula'.
A small strip of motherboard that sticks out away from the main body of the motherboard.
This 'peninsula' can crack at the area where it meets the motherboard.
This will result in stretched broken circuit traces.

[Think of a circuit trace as being a very flat, thin, copper wire ]

If this has occurred toss the motherboard.


[ In regards to the DC Power Jack repair guide in the link above;

1. You don't need a soldering station. A soldering iron around 40 to 50 Watts with a No.2 chisel tip, and well tinned, will work just fine. Have a very damp sponge nearby to constantly clean the tip with.

2. I advise using Desoldering Braid instead of a Desoldering Tool. The braid is laid on the solder joint to be removed. The tip of the soldering iron is laid right on the braid, above the solder to be removed. The copper braid will 'soak up' the solder.
A lot handier than a Desoldering Tool IMHO.

3. Isopropyl Alcohol is EXTREMELY FLAMMABLE! Do not use near the soldering iron, and use in a WELL ventilated area with NO sparks or flames present!

4. If you are rusty with your soldering/de-soldering techniques, practice awhile before attempting this procedure.

Do Not overheat the copper circuit trace area around the holes. This will burn the area, and it won't accept tinning. (Tinning: Applying a light coat of solder) If it will not accept tinning, toss the motherboard at the cat. It's junk.

Overheating can also lift the copper circuit trace right off of the motherboard.
Make SURE you make a pretty, clean, solder joint. A cold solder joint will result in you starting all over.
It's a pain in the keister to disassemble the laptop in order to repair a cold solder joint.

Make sure the soldering iron tip is clean, and well tinned before you start.
Clean the tip often by wiping it across the damp sponge ]

The center pin of your DC Power Jack may be 1.0mm in diameter, or it may be 1.65mm
Make sure you obtain THE correct DC Power Jack.
The one's that are advertised around $2 to $5 may be junk, and no where near the actual DC Power Jack you need.

This place may be the one to go to. Don't know, haven't tried them, and not advertising for them.
I do like how they want you to send a photo in, and they also ask questions BEFORE you purchase.
IMHO it seems as though they may be professionals in their area of expertise,

http://www.laptopsockets.co.uk/

If you wish to have a Service Manual I do not see any online links to give you, except for one that details how to disassemble down to the Harddrive.
From there it would be a guide to an Asus Eee PC that is fairly close IMHO.
Plus guidance from me.

Have questions mtrunner53 please post in a Comment.

Regards,
joecoolvette

Dec 13, 2010 | ASUS Eee PC 1005HA-PU1X-BK Netbook

1 Answer

My netbook is plugged in to the wall and the charge port but is not showing that its charging. why? and how do i fix it?


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.

Sep 26, 2010 | ASUS Eee PC 1000HE Netbook

1 Answer

Asus f80 can't start. when connect to power adapter no activity on notebook, no power led etc. led on power adapter ok.


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.

Sep 21, 2010 | ASUS F80Q-X2AM 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

1 Answer

I need to replace the DC jack on my laptop


Do Not Attemp to Replace the Jack Unless You Have Experience with Soldering... The Original DC Jack Must First Be Desoldered and Removed... You Need A Desoldering Pump or Solder Wick (braid) To Remove the Old Solder From The Jack Post Pins..... DO NOT ATTEMP TO RIP OUT THE OLD JACK!!!!! You Will Pull The Contact rings from the center of the motherboard out and render the motherboard useless...


Slowly and carefully Unsolder the dc jack, Remove it and Clean the board.... Very Important to Clean the Motherboard after desoldering the old jack.... You Must Remove all old Flux...

Then Apply a light layer of fresh solder to all the contacts on the motherboard....

Apply Flux paste to the New DC Jack Pins and a light amount onto the contacts on the motherboard....

Insert the new DC JAck Into The Slots and Apply Solder to all points on the underside of the motherboard....

Flip The Motherboard Back Over, To THe Side Where THe DC Jack Is,, and Apply Flux then a light amount of Solder To The Side Pins and Back Power Pins ...


Then Clean the Motherboard off again using an Electronics grade circuit board cleaner (found at radio shack) or a tiny amount of denatured alcohol applied to a paper towel .. THe Purpose is to remove any remaining Flux..... as this will just deteriorate the New Solder over time unless cleaned off...

Good Luck

Nov 17, 2008 | Computers & Internet

1 Answer

Removing the DC input from a Gateway 7322gz notebook


I tried looking up a manual on how to remove the motherboard on Gateway's support site but they do not provide one. They may have one available that is not published on the site. I would first contact their tech support via Chat and ask if they have one available for download. This would give you specific instructions on how to open the laptop and remove the motherboard so you can replace the DC jack. You will need the serial number from the laptop to open a chat session.
If they do not have one you can try it yourself. I did this myself with my HP laptop and after many tedious hours of work I was able to remove the motherboard, remove the dc jack, and resauder a new one on the board and it worked out perfectly.
If you feel comfortable doing the work yourself first start off by removing the screws on the bottom. You then should be able to remove the keyboard, look for a cable that connects it to the board. Now you should be able to remove the pieces of the case around the keyboard, look for the cable connecting the touchpad to the motherboard. After that you should be able to remove the LCD screen, look for the cable connecting it to the motherboard. Now remove the screws holding the motherboard in and remove the tiny bolts around the external monitor connector and the printer connector if you have one. Now you should have access to the DC jack. You will need to sauder the current one off the board and resauder a new one on. Keep track of the many many screws and try placing the components in the order they came out so will know which ones need to go back in in the proper order.
This is VERY tedious if you are not familiar with working on laptop hardware. You maybe able to find a local shop willing to do this or you can look online for a place that replaces DC jacks on motherboards.

Hope this helps!

Nov 29, 2007 | Gateway 7322GZ Notebook

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