Question about Toshiba Satellite A105-S4004 Notebook

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When I open my toshiba satellite laptop the screen has lines on it almost like a loose connection somewhere running windows xp how can I fix this?

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  • karamck15427 Oct 10, 2010

    I am assumming it is a loose connection because if I move the top the lines come and go

  • karamck15427 Oct 10, 2010

    I was assuming it was the connection because when I move the top the screen lines come and go. But not sure at all.

  • karamck15427 Oct 10, 2010

    Yes I would I would rather not have to pay someone if it is fairly simple to fix I am pretty handy. ??

  • karamck15427 Oct 10, 2010

    Yes can you walk me through it?

  • karamck15427 Oct 10, 2010

    YEs can you walk me through this?



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I think I know what the problem is. But how do you know its a loose connection? Does it come back to noraml occasionally by itself? Anyways let me tell you what the problem is assuming its a loose connection. It the wire that goes from the GPU to the screen. Its called an LVDS cable. It looks like a small ribbon like wire. It should not be too hard to fix if you are handy at fixing stuff and if you are willing to open it up. Let me know if you want to do it so that I can see you through the repair.


Posted on Oct 10, 2010

  • 1 more comment 
  • eagle338
    eagle338 Oct 10, 2010

    Ok and now for the second part of my question. Would you like to do it yourself?

  • eagle338
    eagle338 Oct 10, 2010

    it is a loose contact, no doubt about it. Please answer my previous question. Whether you want to do it yourself.

  • eagle338
    eagle338 Oct 10, 2010

    Ok. Here is the walkthrough(click). Remember that you don't have to remove the entire motherboard. You should just check the LVDS connector which is the white cable shown in this pic



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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:
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  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.
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.
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.
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