Question about Toshiba Satellite (K000004080) Motherboard

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Toshiba dc connector

The dc connector on my toshiba laptop broke. Do i need to replace the whole motherboard or is there another solution?

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  • hopeisback Oct 25, 2008

    I would actually have a computer repairer fix it but the guy I called said that the motherboard would need replaced. So it can be soldered back on?


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If the laptop still works, then there would be no need to replace the motherboard. The DC jack is replaceable/repairable. What would be more challenging is the disassembly and eventual exposing of the bottom part of the circuitry where the DC jack is soldered into. Often the DC jack would have at least 2 solder point (not more than 3). This might interest you.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Oct 25, 2008

  • Louie  Role
    Louie Role Oct 25, 2008

    If the laptop still works, there would be no need to replace the motherboard. The DC jack is usually just soldered on to the board.


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Applied power using wrong AC adapter. What damages occurred during power up using wrong AC adapter?

What did you 'smoke'?

The power circuit section of the motherboard. (Hopefully only that)

While I fix M/B? Does this mean you are contemplating, board level component replacement?

Then you have skills in replacing SMD/SMT components.
(Surface Mount Device/Surface Mount Technology)

[Except for the capacitors which are Leaded. They have leads ]

However, NO.
The audio headphone jack resides on an Audio Board, and this is a separate circuit board. (PCB. Printed Circuit Board)
Therefore even if the motherboard is repaired, or replaced; you still have to replace the Audio Board.


No, it's cheap!

The components you are looking at replacing, average around 18 cents USD to $1.01. Maybe a little higher for some SMD/SMT components, but Not much.

Without going into detailed power circuit technology, for laptops; let me just say that you will be looking for bad;
A) Power MOSFET's
C) Diodes that are SMD/SMT
D) Solid Polymer Capacitors

[MLCC = Multi-Layer Ceramic Capacitor. They are SMD/SMT also ]

Let's take a look at the motherboard,

Scroll to the bottom for the large photos.
The first photo shows a BOTTOM view of the motherboard.
(Heading A000012540 in blue )
This is where the Processor, Ram Memory, and graphics chipset are located.

[The Intel Core Duo T2250 processor, uses a Socket M processor socket, ]

The second photo down shows a TOP view.

Looking back at the Bottom view; observe the two shiny round objects at the bottom of the motherboard photo, and they have a RED mark on one side.

These are Solid Polymer Capacitors. If you look around the motherboard, you will see larger examples; but they have a BLACK mark on one side.

Rarely do these go out, but IF they do they go with a BANG!
(Like a loud POP!)
They explode like a miniature grenade, and send shrapnel all over.
Too much Voltage can do that, too.

Could be one bit the dust.
Along possibly with Power MOSFET's, and/or MLCC's.

( Except the Power MOSFET's should be rated at 30 Volts. [DC]
[ Will handle UP TO 30 Volts ]
Did you plug an AC adapter [Charger] in, that produced more than 30 Volts? )

The DC Power Jack is a DC Power Harness.
It is the DC Power Jack; attached to a small cable, and the cable ends in a plug connector. The plug connector of the cable, plugs into the motherboard.
The DC Power Jack itself, resides in a Channel formed in the outside wall of the Base Enclosure. (Also can be called the Bottom Cover),

Where it plugs into the motherboard, is the Power Circuit section of the motherboard.
This area, and the matching area on the Bottom of the motherboard, are specifically where you need to check for bad components.

Not THE Power MOSFET's that are used, but a large example so you can see what to look for,

Click on the blue - Larger Image
The 'legs' on the sides are J-leads.

Example of MLCC's that are SMD/SMT.
Not THE ones, just examples. I chose a 4.7uF at 16 Volts (DC), for an example, (SMD/SMT),

Not in your level of expertise, or something you wish to attempt?
I understand. Replacing the motherboard as a unit, may be more feasible for you.

Something I would like to bring up;

When Windows is installed on a computer, it assigns hash values to certain major hardware components. Think of them as Serial Numbers, but with no personal information attached.

Hardware components such as;
A) Processor (CPU)

B) Motherboard. This also includes the motherboard chipset, and BIOS program. (BIOS program; To also include the version, and date of the BIOS program)

C) Harddrive
D) Graphics chipset

Change any two of these components, and Windows may throw up a 'Red Flag'.
Thinks this Genuine copy of Windows is being removed from one computer, and installed on another computer.

This = NO
Microsoft User's License states, "One GENUINE copy of Windows per ONE computer"
(Microsoft makes one Master disk. From it all GENUINE copies are made, and sold to the consumer)

You may get an Activation window that comes up. Wants you to activate the genuine copy of Windows you have on your computer.
If so reply back in a Comment, and I'll guide you in performing this simple procedure.
(Advise DO NOT use the internet method. You want to Call Microsoft. MUCH nicer to speak to a REAL person, and also if there is a problem, a HUMAN BEING can help you figure it out)

For additional questions please post in a Comment.

(The more I think about it, the more I lean towards one of the Solid Polymer Capacitors bit the dust.
The capacitors are the weakest link. Solid caps pop LOUD )

Jan 05, 2013 | Toshiba A000006600 P100 P105 MOTHERBOARD

1 Answer

Toshiba nb100

1) First thing to check is the AC adapter (Charger) power output.
It is 19 Volts (DC)
Suggest use a multimeter to check.
An economical, yet good enough for this test, multimeter, can be purchased for as little as $8 to $12.
Available in a multitude of stores. An auto parts store is but one example.

In the above video ->

-> TOO DANGEROUS. Take the power cord to a pro to test it.
110 to 220 volts will give you a BAD SHOCK to -> FATAL <-
(Can kill you)

For the second part of the test starting at 3:58, it is okay.
You will be testing for 19 Volts -> DC
If the voltage shown is not at least 17.1 Volts (DC), (90 percent),
the AC adapter is no good.

AC adapter checks out?
Then it's time to check the DC Power Jack.
(DC_IN on the laptop. The jack on the laptop you plug the AC adapter into )

2) Remove the Battery. With a non-metallic object, gently see if you can wiggle the center pin of the DC Power Jack around.
ANY perceptible movement means a bad DC Power jack.

Good news is that it is Not soldered to the motherboard. It is attached to wires, that are attached to a small white plug in connector. (DC Power Jack is connected to a harness),

(You can click on the photo to enlarge)

Once removed, you can check it for continuity with the multimeter, set to OHM. (1K)
Or have it checked.

The DC Power Jack harness, plugs into the CN5 connector on the motherboard,

Looking at the motherboard in the photo, you will see two green squares. The middle square is the Processor.

The green square to the right is what I want you to look at. Specifically, the small white connector to the right of it.
(The green square is a chipset. It has a white triangle < pointing to the Top/Right corner)

Put your mouse cursor on the photo. (Magnified view)
Go to the small white connector to the right, of the green square
I indicated above.
Has a small white arrow ( > ) pointing to the Top/Left corner of the white connector.
This is the CN5 connector on the motherboard.

If the DC Power Jack harness is not the problem, then the problem is Power MOSFET's on the motherboard, and or Capacitors.
(Ceramic SMD capacitor/s)

[Just basic info. Pertains to an HP laptop. Just want you to see about Power MOSFET's, ]

Choice is yours, whether you wish to have bad electronic components replaced, or replace the motherboard.
May be more feasible for you to replace the motherboard.

Toshiba Netbook PC NB100 Service Manual, (Free. No junk attached),

Go to the subheading -> Mini Notebook. (5th one down)
Left-click on the blue -> NB100

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 (NB100) it may take up to 30 seconds, before the first page comes up.

In the Bookmarks menu to the left, click on the + sign to the left of -
Chapter 4.
In the list click on ->
4.7 System Board, DC-IN, RJ-45 Cable and Bluetooth Card

For additional questions please post in a Comment.

Jul 25, 2012 | Toshiba Motherboards

1 Answer

My toshiba satellite l35 wont turn on,,,the light blinks then shuts off ,,,thats all it does

You may have a DC connector problem:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning.

If your laptop is out of warranty, then you can fix the problem by re-soldering DC-IN jack on the system board. If it

May 17, 2011 | Motherboards

1 Answer

Hello sir, The problem with my laptop compaq presario v6500 is that it works on battery but it does not work on AC power while my charger is alright. neither its battery is getting charged. i took to a...

hi karun, i think your hardware eng may lie to you,its not necessary to change hole motherboard for this problem , if you have problem in your motherboard mean you cannot ON your laptop itself , just try to take your laptop to some-other hardware expert to do this process, or may be he didn't get spare of DC jack for your laptop.

But i am sure if you change your DC jack is more enauf for this problem, i have search how to do DC jack process in online, i got one site too. just check it and try to show it to your Hardware eng.If possible ask about you can able to get DC jack spare in your area , some hardware eng can help you by putting DC jack of old laptop of same model. Just don't change your motherboard until you have try all this process.

just copy and paste the link in your browser :

Good luck ! if you think your problem solved don't forget to rate

Jan 01, 2011 | Compaq 449901-001 - HP Presario V6500...

1 Answer

How do I replace the DC power Jack socket on my ACER Extensa 5620 .Mosel NO MS2205

Here is a place to buy a dc jack for the motherboard:

This video will show you how to replace dc jacks in a laptop:

This page has the service manual for your laptop:

Sep 22, 2010 | Motherboards

2 Answers

My charger does not power up my Toshiba Satellite A305, is it the motherboard?

Have you tried running it without the battery?
  • If this works, then the battery has died. Replace it or run on p/s alone.
  • If not, and the power supply is definitely working, then the laptop itself needs repair.

Apr 07, 2010 | Toshiba Satellite (K000004080) Motherboard

1 Answer

HP Pavilion dv6000 plugged in not charging, I have a new battery.....PLZ Help.

Its the DC charging jack that you plug the charger into on one of the sides of the laptop. Do a google search, go and search for "HP dv6000 DC jack problem charging" (leave out the quotes) and you will see this is a common issue with the dv6000 and laptops in general. Many will just replace the whole laptop motherboard as the DC jack is attached to the board. If you know what you're doing, you change out the jack, quick repair job and keep your own board, but fixed. I would fix it if it were mine. You may be able to find someone local online but if you need someone to do the repair, I'm in the repair directory, as are many others qualified.

Note: It may come to a point, or the situation may just fit better to replace the entire board instead of the port alone. This is usually when the jack is not seated and easily replaceable, or if you are under warranty, HP will replace the whole board.

Mar 08, 2010 | HP Pavilion dv6000 Motherboard

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,

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,

(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 | Motherboards

2 Answers


notebook mainboards are very expensive! mine was nearly 400.00 bucks,unless you buy used, i did the first time-the onboard sound was broke. so i should have replaced the whole thing. the cost of new notebooks have fallen alot lower. you may consider this. good luck!

Jan 21, 2009 | Motherboards

1 Answer

Acer 2300 travelmate

you can get seperate dc jacks from here Try not to disconnect the screen as it may never come on again, i would take to a qualified repairer.

Aug 30, 2007 | Motherboards

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