Check to see if the problem is the screen Inverter, or the graphics chipset, or the LCD screen.
Use an external monitor as a test.
If the screen of the external monitor shows a scrambled display you have a problem with the graphics chipset.
If the screen of the external monitor does Not show a scrambled display, you have a problem with the screen Inverter, or the LCD screen.
90 PERCENT of the time the fault is the screen Inverter.
External Monitor;
1) You can use a CRT monitor, (Looks like a small TV), as a VGA monitor,
Or
2) You can use a flat LCD screen monitor that has a VGA cable.
A) Laptop OFF, and monitor OFF, attach the VGA cable from the External monitor, to the VGA port on the Toshiba Satellite A205 series Notebook PC.
This is an example of a VGA cable, and it's connector, and a VGA connector on the laptop,
http://en.wikipedia.org/wiki/VGA_connectorB) Turn the monitor on. If it is a CRT style let it 'warm up'.
Turn the laptop on.
C) The display is supposed to automatically show up on the external monitor.
If it does not, press, and hold down on the Fn key, and also press the F5 key.
Still no?
Holding the Fn key down, tap the F5 key again.
Display good on external monitor? Problem lies with the screen Inverter, or the LCD screen.
Either OR.
Primer:
An LCD screen does not produce light. It needs an additional light source.
A Backlight is the additional light source.
A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
An Inverter (screen Inverter) is used to convert the electricity provided by the laptop, for the LCD screen, and Backlight.
As previously stated, 90 PERCENT of the time the fault is the Inverter.
Laptop open looking at the display assembly, the plastic thin frame in front of the LCD screen, and surrounds the LCD screen, is the Display Bezel. (Resembles a picture frame)
The Display Bezel is removed to access the screen Inverter.
The Inverter is right behind the Display Bezel, and located at the bottom area of the LCD screen.
The Display Assembly has to be removed from the laptop, to remove the Display Bezel.
Toshiba's term for the Display Bezel is Display Mask.
The Toshiba Satellite A205-S5804 Notebook PC is one of the Satellite A205 series of Notebook PC's.
This is a link to a free Service Manual for a the Satellite A205 series of Notebook PC's,
http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-toshibaScroll down to the second Satellite heading. The one that begins with Satellite A10.
Scroll across, and click on A200.
After you click on A200 it may take as long as 30 seconds before the first page comes up.
It may also take additional time for the file to fully download.
At the top of the PDF file is the page number box. It is to the right of the Down Arrow.
Go to Page 146.
4.10 Display Assembly
Page 151 shows how to remove the Display Mask.
4.11 Display Mask
Page 153 deals with the screen Inverter.
4.12 FL Inverter Board
Takes a really sensitive (Read fairly expensive) multimeter to test an Inverter.
Due to the low price, and ease of replacing, the screen Inverter is replaced to test whether the old one is bad.
Example of a screen Inverter (FL Inverter Board) for a Satellite A205-S5804 Notebook PC,
http://www.batterysupport.com/toshiba-satellite-a205-s5804-inverter-p-216526.htmlCompare to the price of a replacement LCD screen,
http://www.laptopscreen.com/English/model/Toshiba/SATELLITE~A205-S5804/To summarize so far;
1) Display shows good on external monitor. Replace screen Inverter. Still the same problem? Replace the LCD screen.
2) Display on external monitor is scrambled also?
Fault lies with the graphics chipset.
Chip and Chipset are slang terms for I.C.
Integrated Circuit,
http://en.wikipedia.org/wiki/Integrated_CircuitThe graphics chipset is a GPU.
Graphics Processing Unit,
http://en.wikipedia.org/wiki/GPUThe GPU for a Toshiba Satellite A205-S5804 Notebook PC (Part Number PSAF3U-0NR00V), is an Intel (Mobile) GL960 Express,
http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Core_2_mobile_chipsetsIt is soldered directly to the motherboard, therefore it is Integrated Graphics.
{Integrated Graphics is also known as OnBoard graphics.
ON the motherBOARD.
The GPU is soldered to the motherboard.
In comparison if the GPU were soldered to a removable adapter card, it would be a graphics card, and Not integrated graphics }
This means if the graphics chipset is found to be bad, motherboard replacement is the solution.
{ Disassembly guide,
http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/laptop-disassembly-1.htm }
For additional questions please post in a Comment.
Regards,
joecoolvette
i believe tha i can do something for it, by myself
how to remove all the keyboard?
how to remove the keyboard?
TKS, YOU REALLY HELPED ME, BUT UNFORTUNATELLY I'LL HAVE TO CHANGE THE HOLE KEY BOARD BECAUSE I COULD SEE A LITTLE BROKEN TRACK AROUND THE KEY.DOES IT EXIST ANY KIND OF PAINT TO RECONECT THE TRACK?
OK. Your answer is really GREAT !!!!! That helped me a lot . But I could see a little broken track around the key. Does it exist any kind of paint to reconect the track? If not, I have to change the hole keyboard.
tks
Raul
TKS, I'VE DONE THAT AND ITS OK, ILL BUY A NEW KEYBOARD AT MACHINA ELETRONICS FOR U$ 39.00
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