Question about Toshiba Satellite A75-S226 Notebook

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Toshiba A75 Wont Boot up

I have a Toshiba A75 Notebook I recently re soldered the power jack. The power lights turn on and the fan spins up. But the screen remains black. I've gotten it to boot up before but the slightest jiggle would make the screen go black. but the power would remain on.

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  • thenewjlo Mar 23, 2009

    This happened to me two years ago and I brought it in to a toshiba repair place and they fixed it for free because there was a class action law suit and I was hoping someone on here would know if that is still going or if we could get it covered. IT IS THE MOTHERBOARD, but I don't know if there is anything we can do without having to get it replaced. Two years ago mine was on backorder for two months because everyone had the same problem.

  • gg2333 Apr 01, 2009

    I ran into a similar problem -

    Initially when I pressed the power button the screen would come on and then go off but it happened for a few times and now it wouldn't come on at all. And, I didn't have any CD/DVD in the drive all this time.



    Do you have any suggestions?



    Thank you



    ~G

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It sounds like you may not have made a good connection to the motherboard from the screen when you put everything back together.

When you press the power button does the screen come on and then go off or does it not come on at all ?

If it comes on then turns off try to eject the CD-Rom that will be a definitive test of whether your power is still on, assuming your cd-rom is not totally mechanical.

Posted on Jan 29, 2009

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No start after reassenbly to clear cooling fans. lights come on. no fans when start is pushed no action at all.videoed disassembly to insure correct re assembly according to toshiba A75-S2131 specs by


A) You did use an ESD wrist strap, and have it's alligator clip attached to a good ground source, right?
That way you don't have to worry about Static Shock issues, and frying out your laptop.

No?
You may have an expensive paperweight now.
(Although the motherboard does make a pretty good Frisbee)

Use any type of Anti-Static Precautions?

You did Follow Anti-Static Precautions? Good. Let's go on.

A) DC Power Jack

http://www.ebay.com/itm/DC-JACK-POWER-PORT-TOSHIBA-SATELLITE-A75-S2131-A75-S206-A75-S2061-A75-S276-/270935761721?pt=Laptop_Adapters_Chargers&hash=item3f1507a339

Not advertising, using for reference. (Photo views)

1) Battery removed check the Center Pin of the DC Power Jack. Does it move?
2) Cracked solder joints of DC Power Jack to motherboard?
Yes, means disassembly again to check.

B) Cables (Wires) are routed SPECIFICALLY through Channels and Latches.
1) Are they, or is one or more pinched by being in the wrong place?

C) Power On button board's FFC installed, in the SAME direction as when it came out? Lock Bar in place to keep FFC locked in?

FFC = Flat Flex Cable.

As you know it has no connector on the end. The motherboard has the ZIF connector. Zero Insertion Force.

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

The flat contact pins of that FFC has to line back up in the ZIF connector on the motherboard, the same way it was when removed.

Broke the Locking Bar on the motherboard's ZIF connector, or the Body of the ZIF connector?
You're looking at motherboard replacement.

Post back in a Comment with your findings.

Regards,
joecoolvette

Aug 17, 2012 | Toshiba Satellite PC Laptops

1 Answer

I cannot charg the battery I have toshiba satellite laptop A75-S206 ; and i can,t charg the battery tanks @ regard


Borrow a different 19V charger from a friend see if its just your charger if not then the DC jack most likely is damaged common issue with Toshiba and Acers. Good thing is Toshiba does not solder the DC jack it fits in a sleeve and plugs into the board.The Dc jack should run you around $5-$15 dollars the repair is a tare down to the boards right corner. Look on utube for "A75 tare down" should be a video floating around show you where the screws are. Shop would charge right around $100-$125 dollars if more they are ripping you off.

Oct 27, 2011 | Toshiba Satellite A75-S206 Notebook

1 Answer

Power lights are on, but fan stops spinning after 20 secs or so


Try and change your Processor. It should work. Since the power lights are on, that means that your motherboard is ok.

Nov 23, 2010 | Toshiba A75-S125 Satellite Notebook

1 Answer

Toshiba Satellite A75-S209 (PSA70U-09700E) PC Notebook will not start.power lights come on for both the battery and DC. There is no fan or hard drive sound.power button does not light up. pushing the...


Hi,

Take out the battery and try booting the machine on AC power only. If the machine boots up then let the operating system load up, the shut it down. Remove the AC jack and put the battery back in again, then power it up.

If it boots all is well if it doesn't then there could be a problem with the battery.

If the laptop won't start on AC power, what you could do is remove the system memory, clean the brass pins and the slots and then re-seat them/it.

Then try to turn the machine on.

Good luck.

Nov 13, 2009 | Toshiba Satellite A75-S209 Notebook

1 Answer

Power Port Damaged


YES it's simple and CHEAP... But you will not be able to do it yourself, unless your power jack is like most IBMs where it's all screw in or unless you are very good at soldering... If it's the kind that needs to be soldered, you will need to take it to an electronic tech guy who can SOLDER it for you...

But first, check and ORDER the correct POWER JACK for your Toshiba laptop from EBAY, it's cheap, maybe under $10 bucks... Then pay the tech to solder it for you, maybe another $20 buck... It's that simple...

Here is the link to your POWER JACK and YES it needs to be SOLDERED on... Good Luck...

http://cgi.ebay.com/DC-Power-Jack-Toshiba-Satellite-A70-A75-A79-M30X-M35X_W0QQitemZ300260358094QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item45e8e977ce&_trksid=p4999.c0.m14

Sep 26, 2009 | Toshiba A75-S125 Satellite 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

1 Answer

A75 s226 wont boot


If it says that the hard drive is not detected, then most probably its a busted hard drive. I doubt it's a motherboard issue since it was able to tell you that it can't find a hard drive. Plus the fact that there are spinning noises which can only come from either the hard drive or the fans.

Sep 09, 2008 | Toshiba Satellite A75-S226 Notebook

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