Question about Toshiba Satellite A105 Notebook

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A105 LCD problem

In reply to your solution i have some experience with laptop dissembling and repairing but i didnt understand what you meant by two inverters. could you explain? And would be possible for me to find out which of the two is needing replaced and do it myself to cut professional expenses?

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  • Randall  Trahan
    Randall Trahan May 11, 2010

    The LCD displays do not produce light, so to generate brightness, LCDs have a backlight. A backlight is a small flourescent lamp placed behind, above or to the side of the LCD display. The light from the lamp is what is spread across the screen. The typical LCD uses a cold cathode flourescent lamp as its backlight. They are generally 8 inches long and slimmer than a pencil. The flouresecent lamps require a fairly high-voltage, high-frequency energy. The component to supply this energy is the inverter. The inverter is a small circuit board (sorry I though there were two), installed behind the LCD panel and take AC power and converts (inverts) it for the backlight. If you are having problems with flickering screens are dimness, its more likely the inverter and not the backlight itself. Inverters store and convert energy, so they have the potential to discharge the energy which is dangerous. Hope this helps.



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What I said was that the video connector size for the a105 was a different size than the a135, even though they are both 15.4" lcds widescreen glossy briteview. So that the a135 lcd when mounted in the a105 top cover: I cannot plug it into the board since the video connector from the a135 is a bit larger (the actual plug) than the a105 plug/motherboard size. SO I am thinking maybe change the video connector so it fits or this is not possible?

Posted on Dec 01, 2012

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I don't know where this thread was originated, but your laptop has only one inverter board.

The inverter is a small board that powers the AC lamp that provides backlight to LCD.

Here is the spare:

Toshiba LCD Inverter Board M110 A105 A100 ...

See here Toshiba Satellite A105. How to remove and replace laptop FL

Posted on Jan 02, 2009


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Here, I found this:
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Please open this link this will help you

And dont forget to rate FIXYA if it didnt help please reply but dont rate any rating

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Your explanation quite clear and understandable that there are some weak shield area and contact issues at Displays connector side. It sound shield/ground issue rather than loose connection. Check the shielding from connection on board to the display module. You may use shielding tape if you have experience to repair electronic devices. You may also take to the Toshiba authorized service center ( Please post your question if you need further assistance

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