Question about Toshiba Satellite A105-S4074 Notebook PC

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Just replaced a cracked screen in a toshiba a105-s4074....when i turn it on i can barely see the screen....it is very dim.....when i plug the old cracked 1 up it works fine....any suggestions?

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  • merlin77690 Mar 10, 2009

    I get a great picture on my external monitor....and when ialsou...must mean the inverter is good then....must be a bad backlight...figures....i just got it in the mail brand new. Thanks for your help...you narrowed it down for me

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If you see a dim image on the LCD screen it means you have a backlight problem.
Connect an external monitor to the laptop and power it up, if you see a clear image on an external monitor, this means your video card is OK.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

Posted on Mar 10, 2009

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I'm going to guess that you want the installation disks for this Toshiba. I can't help you with that as any unauthorised copies are not legal. Microsoft do not allow free copies of installation disks.

Toshiba sell the recovery disks for around about £18 UKP Call their technical support line to order them. Or you could install a vanilla copy of the operating system and download and install the drivers from

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Is the screen physically broken or the display does not show an image?
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In that case it is highly likely that the inverter for the LCD Screen has gone bad. This is not a super complicated repair, and can be done in most cases without soldering. The trickiest part is opening up the frame around the screen.

The inverter is under the plastic frame, just under the LCD screen, near your power button bar. There are two connectors that you can unconnect. There is high voltage, so you do need to be careful.

If you get the numbers off the Inverter, do a google search, and you can find them. They range from $30-80 just depends on the model and how easy they are to find.

If you take it to a shop, probably looking at about $100-150, depending on your area.

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With regrards,
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