Question about Toshiba Satellite A215-S7422 Notebook

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Lcd Screen has issues.

My toshiba a215 has a screen from a dell latitude d800 1920*. The screen works, somewhat. It displays everything, but it's all "bleached out". It can't display anything near true black. Adjusting contrast, brightness, gamma, resolution and "temperature" doesn't work. When I hook it up to an external monitor, everything is fine. The faded-ness also occurs in BIOS, so it's no OS issue. I would have just replaced it, but the weird thing is that every once in a while, the screen works perfectly.

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  • jobobalo Dec 31, 2008

    Please refrain from "helping" me by telling me to get a new screen. I know this, but I want to save 80 bucks and use the one I have, if at all possible.

  • jobobalo Dec 31, 2008

    Correction: Latitude d800 1920*1200

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I dont know but i would think using the screen from a different computer would not be good.
im sorry but you will have to buy a new one. there is no way to make the fade stop.

Posted on Jan 07, 2009

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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

Hi there, my six year old dell latitude D800 lcd goes dark (not completely, but unreadable); (first brightness was jumping down and up). Two years ago I had such problem and solved by replacing the lcd...


Sorry to hear that, Paul. As far as notebooks displays go, the light behind the screen is the part most likely to go out. It generally does just that: it just goes out, though the screen itself works (the LCD is still generating a picture, which you said you can still see). Whether you run it dim or bright doesn't play much of a role.
Another inverter replacement is probably needed here, with the light itself (what the inverter is powering) an somewhat less likely explanation. In any case, the notebook will have to be opened up to do the work, where is where a lot of the cost comes from (unless you or a friend is doing the work for you).

Good luck!

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Hi, what i would suggest is to use an external monitor and if you can get something on your external monitor, reseat the lcd cable or display cable refer to this website for instructions (http://support.dell.com/support/edocs/systems/latd620/en/SM/display.htm#wp1105347) - if still same - the lcd has got to be replaced.

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Seems that you have a loose LCD screen cable connection. You will need to disassemble the laptop & make sure the LCD screen cable connection is tight.
Please check this link for more details:
http://www.laptopparts101.com/lcd-screen-video-cable/

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REMOVE ALL POWER FROM THE COMPUTER BEFORE YOU ATTEMPT Try this first remove the control plastic panel above the key board,reseat the lcd cable to the motherboard.If no go you may have a loose or bad inverter.Here is how to fix this,REMOVE THE BATTERY,AC CORD.On the front of the display you will see some little rubber covers these cover the screws revove the make sure you put them out of the way,remove the screws remove the bazel.Below the LCD is a little card about six inches called a inverter make sure its snug(CHECK THE WIRE PLUGED INTO IT FROM THE LCD),since you got this apart you might want to look at the rear of the lcd the back panel comes off too but you will have to remove screws as well.THAT CABLE SHOULD BE SNUG AS WELL YOU CAN USE A PIECE OF TAPE TO KEEP IT SECURE.Now thats it for the physical display.Put everything back together and try again.
Good luck

Nov 30, 2008 | Samsung Dell Latitude D600 14.1 LCD SXGA+...

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Symptoms of a Bad Video Driver

Monitor Resolution issues:
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