Question about Toshiba Satellite L25-S119 Notebook

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My screen fails to illuminate, I can make out text just barely but there's no light - I think it's the inverter? If so I found one to buy but I'm looking to at least see it in my laptop first, is it something I could replace myself? I own a Toshiba psl2xu-00j00d and I'm looking at this http://www.sparepartswarehouse.com/Toshiba,Satellite,L25,PSL2XU-00J00D,Laptop,Inverters.aspx

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  • Hi, hope this will help you with your problem. There are steps to 'change' the visual effects of the "Display." 1. Right click on "Desktop,” click Personalize, click, Display Settings. 2. Identify, Monitor used? 3. Down (arrow) select Monitors graphics. 4. Adjust, (low>high) resolution. 5. Select, Colors (16 bit>32bit), etc. 6. Select, Advanced Settings, click Properties ("check device status"). 7. Update Drivers (only if, necessary?) 8. Click on "List All Modes" select valid (modes) for the monitor. Note: Always click on the 'Apply', and 'OK' buttons after application changes for the process to take effect. 9. "Restart "Computer." *Next go, to: Screen Saver, in the Screen Saver Settings change 'Power' settings. *Next go, to: Start Menu, click on Product Name: (Toshiba), click 'Utilities' click, Toshiba Assist, click 'Optimize' click, "Display"; change power on display. *Next go, to Control Panel, in Mobile PC, click; "Adjust commonly used mobility settings" (changes the following); Display brightness, and Connect Display. “Did this solution help?”

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1 Answer

The LCD is barely illuminated, almost dark.


Try attaching an external monitor to the laptop & see if you could get any display on it. If this is successful, then you might have either a faulty LCD cable or screen inverter board.
The LCD cable transfers data signal from the motherboard & video card to the LCD screen. It also supplies high voltage DC power to the screen inverter board. The screen inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. It converts low voltage DC power to high voltage AC power needed for the backlight lamp.

Sep 12, 2010 | Computers & Internet

2 Answers

When notebook turns on the screen is not almost dark you can very faintly see windows logo.


Sounds like you may have lost the screen inverter. The inverter is a small electronic board that sits under the lcd panel behind the screen bezel. It takes the DC power from the power adapter and converts into the high voltage AC power for the backlight that illuminates the panel.. Since you can still see the Windows logo, that would mean the video card and mobo are still working. Unless the laptop was dropped or has taken a hit, I would doubt the bulb has been broken or burned out, although that could still be the case....I would lean more toward an inverter failure or a loose connection of one of the wiring harness plugs that connect to the inverter. These wiring harnesses are very close to the hinge assemblies and can time to time be pulled loose or ground themselves out by rubbing the wiring bare. Remove the bezel from the screen and inspect the wiring at the hinges as well as the plugs leading into the inverter.

Jun 16, 2010 | Compaq Presario 700 470024-192 Notebook

1 Answer

Screen will not illuminate, i can just make out


If you hold a flashlight up to it can you see what is on the screen?
If so then the lcd inverter had gone out.
(That happened to my HP)

Mar 12, 2010 | ASUS Z92M Notebook

1 Answer

I swiched off my laptop inspiron 1000 at the off switch. when I put it back on the back light did not work


how do you know it is the backlight? Usually people think that's it but it is the inverter.
f the backlight of your laptop stopped working and the image on the screen is so dim that you can barely see it under bright light, most likely you have a failed inverter board. There is a good chance to fix the problem if you replace the inverter board. If you replace the inverter board but the image is still dim, most likely there is a problem with the backlight lamp inside the LCD screen. If that's the case, try to replace the LCD screen. Note: it's much easier to disassemble the laptop display panel when the display panel is separated from the laptop.

I can definitely fix either way if you are out of warranty from dell.
Good luck! EJ Kudelka ej@outlet3g.com 516-860-2969

Feb 06, 2010 | Dell Inspiron 1000 Notebook

1 Answer

After 5 minutes monitor screen dims--can faintly see the windows screen and then it flickers out and there is nothing. Any ideas?


the monitor may be going into power save mode which it should come out of when you press a key or move the mouse but it sounds like you have tube inverter issues. Your screen has light tubes behind it to illuminate the screen, if the tubes or the inverter develop a fault, then a very dark screen can result as the tubes are turned off. There may also be an ambient light sensor which will darken the screen in low ambient light. If the sensor is faulty, darkened screens will result. If the inverter is failing, you may be able to replace it, contact viewsonic. if the tubes are failing, replace the panel or the entire monitor. If the ambient light sensor is faulty, replace the panel or entire monitor as the sensor is part of the display panel.

Nov 02, 2009 | ViewSonic VG900b 19" LCD Monitor

1 Answer

HP Pavillion F1503 screen has gone dark...background is very, very faint, barely able to see/read it. What is the problem? If it is a ''backlight'', then what exact is a backlight, what does it do, is it...


Most of the time in this situation, the problem is due to the backlight going out. However, there are some instances where the inverter cable is bad.

The backlight is the part of the LCD which illuminates the screen. Think of an LCD as having multiple layers. One layer has the image itself on a semi-transparent layer and then behind that layer rests the backlight (usually a florescent bulb) which shines through all other layers to make the image glow and illuminate.

More info can be found here:

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

As far as replacing the backlight, I always replace the whole LCD itself, which includes the backlight.

Otherwise, you risk ordering the backlight and finding out that it was the connection from the backlight to the LCD that was causing the problem (very possible) and then you would have to order the LCD anyway.

Sep 05, 2009 | HP Pavilion F1503 15" LCD Flat Panel...

1 Answer

No video on Compaq presario C306


When the backlight is black ie. the CCFL lamp is not illuminated that means the CCFL lamp is dead (it is basically a very small fluro tube) or the inverter is faulty and it is unable to supply high voltage to the CCFL lamp.
make sure the inverter is firmly seated and connected.
Check the wires to the CCFL lamp, there is a couple of wires from the inverter to each end of the CCFL tube.
Check the CCFL lamp voltage on the inverter it should be 100 - 150 volts.

May 05, 2009 | HP Compaq Presario C306US Notebook

1 Answer

Dull Screen when i turn the computer


I have had this myselfe on a dell laptop

It is the screen inverter or the screen tube

The screen uses very high voltage to light a very small but powerfull little flourescent tube
it is either the inverter that powers the tube or the tube itself

When my one failed i had a spare computer monitor at the time and managed to hook it up with no problem, backed up my files, and ordered a new inverter of ebay for about £30 unfortunatly it was not the inverter but the tube so i had to buy a new screen around £70 -£100 changing it was a bit fiddly but no big deal , hope that helps

or you could simply use a monitor if you can

Jan 17, 2009 | ASUS M50Sv-A1 Notebook

2 Answers

I noticed a post you made about the Viesonic VX900 and fuses


I think you have bad CCFLs, (Cold cathode fluorescent lamps) they look like small flourescent lights and are used to light the screen. On smaller than 17" screens there are two, one on top and one on the bottom. 17" and larger monitors have 4 with real big ones having 6. If you attempt to change them be very careful not to crack the screen and remember the order of all the layers of the screen. The cost of the CCFLs along with the difficulty in doing this repair makes it not worth most peoples trouble....good luck

Aug 10, 2008 | ViewSonic VX900 19" LCD Monitor

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