Question about Toshiba Satellite M45-S169 Notebook

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Toshiba Satellite no power

Power supply jack shows 19 volts DC unplugged
it shows zero VDC plugged in and I get a spark when inserting it??
something is "crowbaring" the PS???
need a mother board???

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  • Roberta Smith
    Roberta Smith May 11, 2010

    will it run just off the a/c power without the battery plugged in ?



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If you have a multimeter, you should test the output voltage or electric current of the "power supply jack",generally we call it Toshiba laptop DC adapter . does the pointer move? if not ,the jack is the issue. for the toshiba laptop battery can't get the voltage from the adapter. u should change the adapter for your toshiba laptop

Posted on Jan 10, 2009

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Replace only the power jack and clean the power supply board with some alcohol...you can find the jack in some electronic shop..

Posted on Jan 04, 2009

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I have a Toshiba Satellite a205-s5000 that I replaced the power jack in. They sent me the wrong plug, mine was hard wired into the board so I cut and spliced the new plug to the wires coming out of th


Looking up the DC Power jack for this model, shows me a Center Pin, and cylindrical metal shell; inside the jack.
Center pin is Positive, cylindrical metal shell is Negative.

Also shows it to be a DC Power Harness. Wires connected to the jack, and end in a white plug; that plugs into the motherboard,

http://www.laptopjacks.com/view_part/Toshiba-Laptop-DC-Power-Jack-TS462625.html

http://www.youtube.com/watch?v=lLPlSsEx5F4

Granted, the above is a A205-S4000 series.
(A205-S4577)

http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/laptop-disassembly-3.htm

http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/big/toshiba-satellite-a200-a205-17.jpg

So...................
1) Am I to assume someone broke the female connector on the motherboard, that the DC Power Harness used to plug into?

Hard wired in this statement would reflect there was a DC Power Harness, soldered directly to the motherboard?

2) Or is your statement that the DC Power Jack itself, for your model; is soldered directly to the motherboard; and you hard wired the new jack in place; after cutting the plug off of the end of the new DC Power Harness? (And removing defunct DC Power Jack)

Plus; Is this an A205-s5000, or one of the A205-s5000 model series?
A205-s5800, A205-s5801, A205-s5803, A205-S5843, etc.

Yes.

Trying to figure out why this A205, has a DC Power Jack soldered directly to the motherboard, and is not using a DC Power Harness.

Why?

Have to make sure you are soldering to the right area, yet alone the correct contact points.

Don't know what I'm talking about? You unsoldered the DC Power Jack FROM the motherboard? Or the jack was soldered to wires, and wired to the motherboard.
Hardwired. The term can be used for either scenario.
That's the way it was originally?

K

Let's go on.

The DC Power Jack is connected to the DC to DC power circuit; on the motherboard. (Power/Charging circuit)
This circuit is near where the DC Power Jack is mounted, or where the DC Power Harness plugs in.

In the circuit are Surface Mount Devices that are prone to go bad.
One is the Power MOSFET's, the second are MLCC's.

(Multi-Layer Ceramic Capacitor.
They, and the P.MOSFET's, are SMD/SMT
Surface Mount Device/ Surface Mount Technology)

http://en.wikipedia.org/wiki/MOSFET

http://en.wikipedia.org/wiki/Power_MOSFET

Let's use the HP Pavilion dv6000 series, and Pavilion dv9000 series Notebook PC's, for an example,

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

These series of Notebook PC's use the;
Fairchild Semiconductor International - FDS6679 - Power MOSFET, and the,
Alpha & Omega Semiconductor Limited - AO4407 - Power MOSFET.

Look at the second photo down, with the AO4407 circled in Yellow.
Immediately below it, (Right corner), and immediately to the right of the AO4407; are MLCC's.
Smaller rectangular object with a dark wide band in the middle of it.

There is one above the one, to the immediate right of the AO4407; one above it, one to the Right of the top one; and one to the right of it.
There are also 4 smaller examples to the bottom/left corner of the AO4407.

Look to see if any are burned/blackened.

Example of availability, and cost of FDS6679, and AO4407,

http://www.mouser.com/Search/Refine.aspx?Keyword=FDS6679

Scroll down. One Dollar and one Cent, USD.

http://www.mouser.com/Search/Refine.aspx?Keyword=AO4407

Here we see the AO4407 is phased out.
Using one of the cross-reference examples given,

http://www.mouser.com/ProductDetail/Diodes-Inc/DMP3020LSS-13/?qs=%2fha2pyFadujguNNSgppBRqXbOxXLwzGsZm9SWxz1EqWpzoSJOpHpWA%3d%3d

78 Cents USD.

Just to show examples of MLCC's that are SMD/SMT.
The examples I chose are 4.7uf (MicroFarad), and 16 Volts. (DC)

http://www.mouser.com/Passive-Components/Capacitors/Ceramic-Capacitors/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT/_/N-b2cj?P=1z0wrjcZ1z0x565

Scroll down.

http://www.youtube.com/watch?v=5uiroWBkdFY

You can use a 25 Watt soldering iron, instead of a Soldering Station.
[ Plus Rosin core solder, rosin solder flux paste, flux paste brush, and Desoldering Braid. (Solder Wick ]

http://www.youtube.com/watch?v=b9FC9fAlfQE

Can things be worse? Yes,

http://koti.kapsi.fi/jpa/stuff/pix/travelmate_6292/


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


Dec 22, 2012 | Toshiba PC Laptops

2 Answers

Engine will not start


Around this shop we diagnose, and not assume.

1) Test the AC adapter (Charger)
Test with a multimeter set to DC Voltage. You should read VERY close to 19 Volts. (DC)

While testing have an assistant gently wiggle the power cord TO the AC adapter, and the power cable coming FROM the AC adapter.
See if there is an intermittent reading for either one. Indicates a break in the wire/s.

2) AC adapter checks out OK go to the DC Power Jack. This jack is the port on the side of the laptop, that the AC adapter plugs into.
(DC IN)

Remove the Battery, see if you can gently wiggle the Center Pin. Use a non-metallic object, or tool.

Also check if the metal shell inside the DC Power Jack moves around.
ANY perceptible movement indicates a problem with the DC Power Jack.

Fortunately, for this model the DC Power Jack is a Power Jack Harness,

http://www.lapdiy.com/toshiba-satellite-l305s5941-power-jack-wire-port-dc-in-cable-p-7556.html

The jack portion is a squarish shape with a channel formed around it, and sits in a cutout formed in the outside edge, of the Lower Case.

The harness coming from the jack has a plug on the end.
You just unplug it, and plug a new one back in.

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L305-L305D/big/remove-lcd-screen-replace-video-cable-09.jpg

In the photo above, it shows a Toshiba Satellite L305 series Notebook PC, partially disassembled.

On the right side you see the optical drive. Squarish shaped with one corner gone. Has a large white label on it, with a smaller yellow rectangular label.

To the upper right you can barely make out a Red wire. It is connected to the black DC Power Jack.

Looking straight across from it to the Left, you see the other end of the Red wire connected to a white plug.

That's the DC Power Harness, and where it plugs in.
This is the entire article,

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-L305-L305D/remove-screen-replace-video-cable-2.htm

(Page 2, and 3 is listed at the top, and bottom of the page, in white.
Page1::Page2::Page3::Find another model )

Posted to show the DC Power Harness, and a pictorial guide that I feel will help get you started.

3) Power Button Board:
Has the Power On switch on it,

http://www.laptoppartsexpert.com/i-7600699-power-button-board.html

If the Power On switch is working, the laptop isn't going to turn on.
('Natch)

See the two wires coming from the board? Black and Red?
Red is the Positive wire, Black is the Negative wire.

Unplug the Power Button Board's plug to the motherboard. There are 2 pins. Carefully touch a small flat tipped screwdriver, (Jewelers is recommended), BRIEFLY to these 2 pins.

Laptop comes on you have a bad Power Button Board.

4) If none of the above is the problem you have a bad power sensor chip.
It's a Power MOSFET.

http://en.wikipedia.org/wiki/Power_MOSFET

Soldered to the motherboard, and takes skill to replace.

(It's a power transistor that is used in the circuit.
Need to use Heatsinks on the J type leads when replacing, and good skills for un-soldering/soldering.

But doesn't take a rocket scientist to replace it.
{ Sorry Gort }

This example is used in a LOT of laptops,

https://docs.google.com/viewer?a=v&q=cache:oER5NNz8cwcJ:www.fairchildsemi.com/ds/FD/FDS6675BZ.pdf+Fairchild+FDS6675BZ&hl=en&pid=bl&srcid=ADGEEShOhWPjm_M-ROHme4iEMrztCTOd-28jNiy1hVLQQh_VOyv8zcXEVDB_iTQA6MuZO88UmRkDgjyW9j4CP2aIJ-4DS-h6JNM3lvxldeApQeecmz_DADCw1s7tmNLxfPknqX14SZP6&sig=AHIEtbS_rYUAeo_8rB9YHkW05ZjLqeH4Jg
)

Or replace the motherboard.

For additional questions or comments, please post in a Comment.

Regards,
joecoolvette

(Link to free Service Manual to be included in a Comment )

Feb 05, 2012 | Toshiba Satellite L305-S5941 Laptop

2 Answers

My laptop powers up for just a few seconds and then powers off before anything comes up on the display screen. This happens even when its plugged into an outlet.


You don't mention if you get any lights on the laptop as it tries to boot up..
Firstly, remove battery, unplug from mains and hold power button down for 30 seconds.
Reconnect to mains and try to boot, if it works ok, replace battery and try again.

If no luck, test the dc voltage at the charger pin, it should be 19 volts ( connect one probe of a multimeter to the inner connection (red probe) and the other ( black probe) to the outer part of the jack.

If this is not outputting 19 volts, try using another charger

Is the DC jack socket loose? If so this will cause it to shut down and the jack socket will need replacing

Check also that the power button is not sticking and (if fitted) the small rubber pin usually near the screen base on the top cover is not sticking in
Remove ram modules, replace one and test it, then the other one to eliminate ram problems

After that, there is a problem with the motherboard

Jun 23, 2011 | Toshiba Satellite L655-S5097 Laptop

1 Answer

No lights come on when you plug it in. Will not turn on w / power or battery. Mother Board appears to be fine. No visually apparent problems with it. No hot spots or any thing like that. Power is coming...


fist pull the battery completely and leave out for a few minutes.
second press hold power button battery still out no adapter connected
third re-install the battery / power adapter then try er out again.

Mar 08, 2011 | Toshiba Satellite A105 Notebook

1 Answer

Battery is showing 100 percent but you unplug power supply computer shut down also when you wiggle cord power shuts down


The DC jack in the computer has detached itself from the motherboard causing intermittent shutdowns, the laptop must be dis-assembled to re-solder the jack back in place, and may need to replace the DC jack if the old one is not suitable.

Feb 08, 2011 | Toshiba Satellite A105 Notebook

1 Answer

Intermittent power supply, problems whit the jack, how I can change that? thanks, Ing. Elton Vargas


1) Check to make sure the problem isn't the cable going into the plug, from the AC adapter. (Charger)
A lot of times, where the wires meet the back of the plug, that goes into the laptop DC Power Jack, is bad.
The wires have a break from becoming stretched. Makes an intermittent contact.
Same thing for where the wires meet the charger body.

AC adapter plugged into power, unplugged from laptop, use a multimeter set to the DC voltage scale.
Use the alligator clip attachments for the probe leads, attach the probe lead's to the AC adapter's plug, and wiggle the wire, check for an intermittent break.

2) AC adapter (Charger) unplugged from laptop, Battery removed, see if you can wiggle the center pin of the jack.
You may find the entire DC Power Jack will move a little.

If the center pin does not move, but the entire body of the jack does, the jack may just need to be
resoldered to the motherboard. The solder connections may be cracked.
If the center pin moves, replace the jack.

To replace the DC Power Jack, or repair the solder connections,

1) Remove all power to the laptop. AC adapter and Battery.

2) Observe Anti-Static Precautions:
Buy and wear an ESD wrist strap. (Electro Static Discharge) Connect the alligator clip to a good ground source. I connect mine to the metal frame of an open, empty desktop computer case.
(You don't need an Anti-Static Mat)
The price of an ESD wrist strap is around $3 to $8. Found in a multitude of places.
Example,

http://www.costcentral.com/proddetail/Cables_Unlimited_Anti_Static_Wrist_Strap/ACC1400/10720671/froogle/

3) Completely disassemble the laptop down to the bare motherboard in your hand.
No Processor, Heatsink assembly, peripherals, nada.

TIPS:
A) You may wish to take photos, or make a video as you disassemble, for your first time. Also make notes.
After the first laptop the next one becomes easier.
(All of them follow a basic path when disassembling. Toshiba, HP, Acer, Gateway, you name it)

B) Use a multi-container for the various screws. Label each container for the area the screws came out of.
There may be 60 or more screws, and 12 different types of screws. Some look VERY similar to each other, but are NOT. DO NOT mix them up.
You can use a clean egg container in a pinch. Label each egg holder.

C) Take your time, use patience. Practice your soldering, de-soldering skills before working on the Toshiba's DC Power Jack, if you're rusty.
Use Desoldering Braid, and not a Desoldering Tool. (Solder S-ucker) The desoldering braid works MUCH better! (Also known as solder wick)


Pictorial, with details on how to disassemble the Toshiba Satellite A70, or A75 series of laptops,

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

You can click on each photo to enlarge.
Page 2, and 3 icons are at the bottom.
(You are on Page 1.
Page 1::Page 2::Page 3 )


One source for a Toshiba Satellite A75-S209 DC Power Jack,

http://www.laptopjacks.com/view_part/For-Toshiba-Satellite-A75-S209-DC-Power-Jack-TS51625.html

Toshiba Satellite A70 series Service Manual, (Free)

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

Go down to the line that begins with Satellite A10.
Scroll across to A70, and click on it.
This is a PDF file. May take up to 30 seconds before you see the first page.
May take additional time to fully download.
(Took me around 40 seconds before I saw the first page, with a medium speed DSL connection)

Regards,
joecoolvette

Oct 20, 2010 | Toshiba Satellite A75-S209 Notebook

1 Answer

My charger won't charge. Computer detects plugged in but no charge


This is usually caused by an old or defective battery or possibly the power supply is a few volts too low to activate the charge indicator. It might be charging but not letting you know.
Try to run it off battery for a while (look at the battery life) and then plug it back to for a while then unplug it again to see if the battery life if higher than before.
To check the power supply you will need a volt meter that can read at least 20 vdc (most power supplies are 19 vdc). Put one lead of the meter on the inside of the plug that goes into the computer and the other pin on the outer silver part while the power supply is plugged into the wall outlet. You should read close to what the Output Voltage on the power supply says which should be on the sticker on the back or side of the black box part of the power supply.

Mar 10, 2010 | Dell Inspiron 1545 Notebook

1 Answer

Recently my Toshiba M100-222 model notebook started to have problems when power cable is plugged in. Usually it is not working when power cable is plugged in, but after I unplug power cable and try it to...


Your having a problem with the dc jack on your motherboard. What needs to happen is the motherboard needs to be taken out and there will be solder points underneath the dc jack on the motherboard. These solder points need to be resoldered so that way the dc jack stays in place properly. At this point you should be able to hook up your ac adaptor and use your laptop that way.

Apr 21, 2009 | Toshiba Satellite M100 Notebook

2 Answers

Screen black & with no power


hi there,

you can follow this instruction and try to your laptop to resolved the problem.

A bad connection between DC-IN power jack on the system board and the system board is a very common problem with Toshiba Satellite M35X and Toshiba Satellite A70/A75 notebooks. If your laptop is out of warranty, then you can fix the problem by resoldering DC-IN jack on the system board. If it’s still under warranty, it would be fixed at no charge to you.
Problem symptoms:
  1. Laptop randomly shuts down without any warning.
  2. Power LED and battery charge LED start flickering when you wiggle the power cord or the AC adapter tip on the back or your laptop.
  3. The battery will not get charged.
  4. When you plug AC adapter, the laptop appears to be dead and there is no LED activity at all (DC-IN jack on the system board is broken).
To fix the problem, you have to take your laptop apart, remove the system board to resoleder or replace the DC-IN jack. Toshiba Satellite M35X and Toshiba Satellite A70/A75 disassembly guides will help you to remove the system board. Take a closer look at the power jack on the system board with a magnifying glass. In most cases you get the power problem because of a bad connection between the DC jack and the system board, you’ll see a crack between the DC jack connector and the system board.
Here is an example of Toshiba Satellite M35X power jack. The crack occurs between the DC jack pin and the system board.
satellite-m35x-crack.jpg satellite-m35x-contact.jpg In some cases the connection is good, but the DC jack is bad itself. You can find a new DC jack for Toshiba Satellite M35X and Toshiba Satellite A70/A75 laptops here. Search for DC jack M35X or DC jack A75.
How to resolder laptop power jack yourself.
UPDATE:
Sometimes, after you replace the jack, you can see that the system board doesn’t get power at all. The battery will not charge and the power LED will not light when you plug in the AC adapter. So, here’s a possible explanation.
When a connection between the positive pin and the motherboard breaks (cracks), the power jack gets loose. You can feel it when you plug in the adapter plug. A loose power jack can damage the trace inside the hole in the system board. Take a look at the picture.
power-jack.gif As you see, the positive pin goes through the hole in the system board and you solder it on the top side. Right? What if the trace between the top side and the bottom side is broken somewhere inside the hole? I’ve seen it before a few times. In this case everything looks nice and clean on the top side. When you plug in the AC adapter, you get normal voltage readings between “+” and “-“ pins on the top side, but the power DOESN’T go to the motherboard at all, because there is no connection between the top and bottom sides. Test with a multimeter if there is a connection between the top and the bottom.
If the trace inside the hole is broken you still can fix it. You can run a wire to connect the top and the bottom sides. Be careful not to short something on the board.
Update:
Here’s another solution to fix the power jack problem, it shows how to relocate the power jack outside the laptop base. Check it out here: Toshiba Satellite A75 failed power jack workaround.
When you repair a loose power jack, it’s a good idea to check the jack on both sides of the motherboard. When you remove the top cover from a Toshiba Satellite A70/A75 laptop you can see only points where the jack is soldered to the motherboard as it shown on the second picture in this post, but you cannot see the jack itself as it shown on the first picture.
Removing the motherboard from Satellite A70/A75 laptop is a good idea because the jack itself might has a broken “+” pin, as it shown on the picture below. If the “+” broke off the base, you’ll have to replace the jack.
power-jack-broken.jpg

Feb 15, 2009 | Toshiba Satellite A75-S229 Notebook

2 Answers

Acer aspire 3004 WLCi won't power on


Often times when laptop won't power on, it's jack on the back where the power supply plugs in. It needs to be disassembled, soldered back together and that should fix it. Good luck!

Aug 22, 2008 | PC Laptops

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