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In my Toshiba laptop there is a problem with backlight. Could you fix it ?

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Yes it can be fixed with a new backlight if that's the problem. Start the computer and see if with a flash light you can see the windows xp starting up image or the desktop when it finishes starting. If so you need a backlight which looks like a small florescent light bulb. If not you could need a new LCD or video card or motherboard. You can test the LCD by hooking the pc up to an external monitor. If you can see the pc info then your video card is ok and your motherboard is ok. You need a new LCD.
Let me know if you need anymore help.
Henry

Posted on Nov 13, 2008

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My toshiba satellite a215-s7472 screen is very dim can hardly see anything what do I do too fix it I tried ajusting the light .


Primer:

An LCD screen does not produce light by itself. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, or a series of LED lights.
(Two present technologies being used)

The Toshiba Satellite A215-S7472 Notebook PC uses a CCFL.

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

(Average size is 2mm by 334mm. In inches that is;
Approximately a little thicker than 1/16th of an inch Thick, and a little over 13 inches Long)

A screen Inverter is used to convert the power (Electricity) from the laptop, for the Backlight, and LCD screen.

Point of all this?

90 PERCENT OF THE TIME the fault is a bad Inverter

http://www.irisvista.com/tech/laptops/toshiba-satellite-a215/disassemble-display-panel-1.htm

http://www.zkarlo.com/selected-zkarlo-part/inverter-board-p907.php

HOWEVER, the Backlight bulb is located inside the Screen Frame, of the LCD display assembly.

An LCD screen is composed of layers. These layers are held in a specific pattern, by the LCD screen frame.

This is a thin metal frame which surrounds the LCD screen layers, and has Philips head screws which hold the frame together.

NOTE*
The procedure is fairly intricate.

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

For additional questions please post in a Comment.

Regards,
joecoolvette

[ So far I have only seen listings for the LCD screen itself, and not a separate CCFL Backlight ]

Feb 01, 2012 | Toshiba Computers & Internet

1 Answer

The model of my laptop is TOSHIBA SATELLITE U400 MODEL NO. PSU40C-DW208C the problem is the backlight of the LCD is built in and no power on it, thats why i cannot totally see because its very dim color,...


Greetings,

It may not be the backlight, it may be the screen inverter which is a reasonable replacememnt. As a laptop specialist in my town, I always order both the screen inverter and the LCD unless both are sold combined.

Fixing a backlight is one of the most difficult laptop repairs possible to attempt. 1. You're not going to fix it. 2. In replacing it you'll have to do such delicate hand-soldering that even I don't attempt it any more and I'm VERY good with my hands.

So, friend, please order a new LCD and screen inverter and you'll be just fine after having someone spend about 1 hour replacing both.

Kind Regards,

Selk

May 20, 2011 | Toshiba Computers & Internet

1 Answer

How to replace a backlight?


The backlight problem could be caused by a faulty inverter or a faulty CCFL lamp. Please click on this link to identify the fault and possible fix :-
http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Jan 12, 2011 | Toshiba Satellite P205D-S8804 Laptop

1 Answer

On my toshiba l300 the backlight keeps failing is there an easy fix


A backlight problem could be caused by a faulty inverter or a faulty CCFL lamp. please click on this link to determine the fault and fix :-
Normal 0 http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Oct 13, 2010 | Toshiba Satellite Pro L300 Notebook

1 Answer

No backlight display


The backlight problem could be caused by a faulty inverter or a faulty CCFL lamp. please click on this link and follow my instructions to determine the exact fault and possible fix :-
http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Jul 11, 2010 | Toshiba Satellite A135-S4527 Notebook

1 Answer

DIM BACKLIGHT TOSHIBA L305D-S5924 LAPTOP


There are also another reason , the Back light lamp might be damaged also!

May 11, 2010 | Toshiba Satellite L305D-S5895 Notebook

2 Answers

My toshiba laptop screen changed color


connect an external monitor (crt or flat panel monitor) at the back of your laptop and see if the display is fine. if the display is fine on the monitor then it means to say that the lcd backlight is not working properly.

Oct 07, 2008 | Microsoft Windows Vista Ultimate Edition

1 Answer

Toshiba


my experience on toshiba laptop is problem with the backlight inverter , , a lot of my clients toshiba laptop having the same problem , just order a used or new backlight inverter on ebay and replace it , and that may solve your problem , when the inverter is not working it cause the backlight not lighting up the screen....

Jul 14, 2008 | Toshiba Satellite A135-S4527 Notebook

2 Answers

Toshiba blank screen


Your LCD backlight is not working. You will either need to get it fixed or have the LCD assembly replaced altogether. If your computer is under warranty, Toshiba will perform this repair. Otherwise, take it to a local service shop.

Jun 05, 2008 | Toshiba Satellite A135-S2276 Notebook

1 Answer

No backlighting


You need to repalce the backlight/Screen altogether, or have someone do it for you. If the backlight has cracked then no amount of reconnecting will get it to work. Try one of the many Laptop repairers online to get a quote

Dec 28, 2006 | Toshiba Satellite M35X-S163 Notebook

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