Question about Toshiba Satellite A105 Notebook

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Replace monitor? my toshiba satellite A105 PC monitor display has reversed colors: what is n ormally white is now black and vice versa. same for colors: green to red and vice versa. have done a system restore and downloaded new display drivers to no effect. system was fine yesterday. any tips????

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How to take the monitor off the laptop and replace

Posted on Sep 07, 2008

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Half black screen with white lines


check the display on external monitor, if its ok , then its fault of either the display cable that gives display to the lcd of laptop or the screen becomes faulty

Feb 07, 2013 | Toshiba Satellite A105 Notebook

1 Answer

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

Laptop Monitor shows balck and white stripes


From what i can barely see it your photo it looks like your video chip  (which is part of the motherboard's chipset) has died. It will be expensive to replace the motherboard.
To recover all your data is easy - just remove the hard disk from the laptop, put it in a case like one of these
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010010092%201053807124%201054107131&name=SATA
then connect the case to another pc.

Mar 26, 2010 | Toshiba Satellite A105-S4084 Notebook

2 Answers

Toshiba Satellite A105 Display


If you've replaced the LCD Panel already, then chances are good, the failing part may be the FLR inverter. It's a thin little chip about 3 or 4 inches in length that bridges the connection between the LCD and the motherboard. It's location varies from computer to computer though, so you may have to check with manufacturer documentation. They're not too terribly expensive to replace though, much cheaper than the LCD panel, anyways.

May 09, 2009 | Toshiba Satellite A105-S4004 Notebook

1 Answer

Removed monitor for cleaning


Unsoldered the master power switch and the reverse scan button (micro switchs) from the mother board and traded each others place, (the reverse scan switch into with the master power switchposition and vice versa.) Allowed the two confused wires to hang naturally and took a chance and plugged them in where they seemed to remember being plugged in. re-assembled and working good.

May 02, 2009 | Toshiba Satellite A135-S4427 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

Black screen


use the same key combination once again it will give you your display back...

Dec 02, 2008 | Toshiba Satellite A105 Notebook

1 Answer

Display comes on with stripes of color then turns white


Try Booting To An External Monitor If able to...
If Display is Normal In It, Your LCD Display Panel Is Bad... The Circuit Board Attached to the Display Panel has Gone Bad...


But If You Hook It Up To External Monitor and It Doesnt Work...
Your Video Card/Chip is bad

Nov 17, 2008 | Toshiba Satellite A105 Notebook

1 Answer

Toshiba a105 screen goes blank


Sounds like GPU failure. unfortunately its nigh on impossible to replace without replacing the whole board which can be expensive. I saw a few on ebay for around £120.

Aug 14, 2007 | Toshiba Satellite A105-S4004 Notebook

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