Question about Toshiba Satellite A105-S4004 Notebook

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Toshiba Satellite A105

Laptop screen keeps flashing and then goes white after awhile. I disconneted the LCD and put it back on the laptop but still does the same thing I don't believe that it is a loose cable and that maybe I need to replace my LCD screen??? Need an answer or some guidance to figure out what the issue is b4 I go out and purchase a service or product that I don't need.....

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Have you tried connecting to an external monitor? Try that. If the picture is perfect on the external monitor then the VGA port is OK but there is a problem with communications between the system board and the screen connector.

Hope this helps. Kindly leave a rating.

Thanks :)

Posted on Mar 05, 2008

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Display divided into 3 parts


LCD screen cracked, and Three even strips going across? Doubtful. Haven't seen it but I always have my mind open.

Three strips that are irregularly shaped? Look like glass that has cracked?
'Jagged edges'?

LCD screen is broken.

Three even strips indicates to me, that there may be a problem with the Video Cable. Then the screen Inverter is next in the diagnoses.
My money is on the Video Cable.

ALL power removed, Anti-Static Precautions FOLLOWED, I would check out the graphics chipset first.

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the laptop.
Left rear side. This is an example of a VGA Cable, and VGA connector. (VGA port on a laptop ),

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

(Color of connector does Not matter. It is generally Blue, though)

You can use a CRT type of monitor, (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable.

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.

There are at least 3 display options available;
1) Laptop internal monitor ONLY
2) Laptop internal monitor AND external VGA monitor
3) External VGA monitor ONLY

Press, and hold down on the Fn key, and at the same time tap once on the F5 key. (The F5 key is the Display Toggle-Over key)

No display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F5 key.

Is the display on the external VGA monitor, the same as the internal monitor of the laptop?

Problem is the graphics chipset.

Display is fine on the external VGA monitor?
Problem is the Video Cable, screen Inverter, or LCD screen.

Video Cable:

A) http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/big/Toshiba-Satellite-A105-14.jpg

Switch Cover removed, Keyboard removed. Shows you where the Video Cable plugs into the motherboard.

B) http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/big/Toshiba-Satellite-A105-21.jpg

Palm Rest Cover you can see the white rectangular connector, for the motherboard side of the Video Cable, at the top left.
It's above the black cable, and near the screw hole.

The Video Cable leads from the motherboard, up through the left Hinge, and into the Display Assembly.
From there it connects to the screen Inverter, and back of the LCD screen.

http://www.ebay.com/itm/Toshiba-Satellite-A105-6017B0050801-LCD-Video-Cable-Genuine-OEM-Laptop-TESTED-/290754851160?forcev4exp=true&forceRpt=true

In the photo, (You can hover your mouse cursor on it to enlarge), the right side connector plugs into the back of the LCD screen.

The black connector to the far left connects to the motherboard.
The small white connector at the top with the Red, Green, Black, etc wires, connects to the screen Inverter.

(The small Black cable, that comes out from the black motherboard connector, is a Ground wire )

Due to the close proximity of the Video Cable to the left Hinge, it can be pulled on from just normal opening, and closing of the laptop over time.

This means the Video Cable connection on the motherboard side could be loose, or the LCD screen side, or both.

The diagnoses is to PHYSICALLY check BOTH connections. A loose connection at the motherboard, or at the back of the LCD screen could be so small in distance, that you will not see it with the human eye.

Could also result in damage to the Video Cable.
View the Video Cable with the Switch Cover removed, and see if there are any obvious signs of damage to the sheath of the cable.

If there is there could be damage to the tiny wires inside the Video Cable. (Stretched/Broken)

Use a multimeter set to OHMs, to check all wires inside the Video Cable for continuity, or have a 'Mom and Pop' computer store check it for a few bucks, or replace the Video Cable.

Video cable connections are tight? Video cable continuity check checks out OK?
Screen Inverter.

The test for a screen Inverter is to use a sensitive multimeter.
Read fairly expensive.

http://www.fonerbooks.com/test.htm

Not having access to a sensitive multimeter that you can use, means just replacing the screen Inverter. Seems like 'part changing', and it is, but you have to work with what you've got.

http://www.sparepartswarehouse.com/Toshiba,Satellite,A105,Laptop,Inverters.aspx

Find THE model number for your laptop, and the correct screen Inverter. A screen Inverter, and an LCD screen are a MATCHED unit.

Screen Inverter is checked out to be OK, or replaced, and symptoms are still the same, the problem is the LCD screen.

Remember, the first part of the diagnoses was to see if the divided parts were EVEN going across, or jagged and irregularly shaped.

Jagged in shape, and not even strips going across, means cracks in the LCD screen.
Replace.

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-replace-LCD-screen-1.htm

[ Main article for A and B links above;

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-motherboard-1.htm ]

For additional questions please post in a Comment

Regards,
joecoolvette

Oct 22, 2012 | Toshiba Sattelite A105-S2051 Notebook

1 Answer

The screen on my toshiba A105 satellite laptop appears to be going but not sure. at times, display is shakey with small horizontal white lines going across. when I wiggle or tweak the screen a little bit...


I use LaptopAid, a reliable and efficient company on Ebay that sells all manner of laptop hardware. I would highly recommend them for all of your hardware needs. I would start with the inverter, as it is the cheapest the buy, and if that doesn't work get the LCD. These are both good pieces of hardware to have spare, and also your model is fairly common so selling them wouldn't be an issue either if you wanted.

Good Luck,

NOLA Tech

Feb 06, 2010 | Toshiba Satellite A105 Notebook

3 Answers

How do I replace the keyboard?


next to the F1 key and the windows key (2nd upper key and second to last key) are two screws, usually under some covering. unscrew and lift top edge of the keyboard towards the trackpad to lay face down. Undo the wire ribbon by lifting the grey or brown tabs and remove ribbon and keyboard. Then install the new keyboard by inserting the ribbon on the place. Lock down with the tabs and put the plastic prongs (close to the space bar) into the laptop body first, and then close keyboard onto the final position. screw back in and thats all. nboulikas@gmail.com for any additional questions.

Nov 06, 2009 | Toshiba Satellite A105-S4004 Notebook

1 Answer

Toshiba Satellite a105 s4004


Here, I found this:
Toshiba Satellite A105. How to remove and replace laptop FL inverter and LCD screen.

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-replace-LCD-screen-1.htm

Jun 23, 2009 | Toshiba Satellite A105 Notebook

1 Answer

I have a Toshiba Satellite A135 and not sure if blacklight or something else


Your backlight lamp, (Bulb), or the Inverter is bad.

1.General instructions, and photos, for replacement of a typical laptop backlight,
http://www.ccfldirect.com/lcdtutorial.html

2.Instructions for completely disassembling a Toshiba Satellite A135 laptop. The reason I included this is twofold.

A.It shows, and tells exactly, how to remove the LCD screen from your laptop.

B.It shows you that the following information in link 3, on how to replace an Inverter in a Satellite A105, will work for your Satellite A135.
http://www.irisvista.com/tech/laptops/toshiba-satellite-a135/remove-mainboard-1.htm
(At the bottom of this page you will see Page1:: Page2:: Page 3:: Page 4
You are on Page 1. Just click on the white Page2, and so on, to continue)

3.How to replace an Inverter in a Satellite A105,
http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-replace-LCD-screen-1.htm

FIRST! Always remove all power! AC adapter, (Charger), and battery.

Second! Observe anti-static guidelines!

Third! This ain't tough! It just looks hard. Once you see how simple this is, I'm sure you'll agree with me.

May 28, 2009 | Toshiba Satellite A135-S2276 Notebook

1 Answer

LCD dark with white vertical line down it


It is the C-Board Panel Attached to the Display Panel And Is Integrated into the Screen .. You will need a screen replacement..
Your part is.... Toshiba Satellite A105 15.4" LCD Screen LTN154X3-L06

Feb 13, 2009 | Toshiba Satellite A105 Notebook

1 Answer

Display


If you've got exacttly the same each time you're start, then the VGA card has issue, or even the motherboard and CPU.

If not then try to chock the base of the screen with two fingers when starting, if nothing happen try to chock the middle of the keyboard and several spot around it. (it's a little bit brutal but the easiest way to find a bad contact or dead components)
If you feel like open it then this website will help you:
http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-motherboard-1.htm
and for the screen:
http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-replace-LCD-screen-1.htm
good luck

Dec 16, 2008 | Toshiba Satellite A105 Notebook

1 Answer

Toshiba Satellite


I had two Toshiba laptops, one changed the mother board twice, went back to the shop 5 times. it is hard to find out why, that why Toshiba got suit a couple years ago.

Jul 10, 2008 | Toshiba Satellite A105 Notebook

1 Answer

LCD problem


if the screen flickers and goes white, it could be your lcd screen (the board on the lcd) or the lcd cable. i would suggest replacing the cheapiest which would be the lcd cable. You could also use the laptop externally and use it that way. Or just get a HDD caddy and change the securities and youll be able to get your info on any other laptop.

Nov 02, 2007 | Toshiba Satellite A105 Notebook

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