Question about Toshiba Satellite A135-S4527 Notebook

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The computer boots up but the screen is dark.

I turn on the computer, it boots up windows, I can barely see the desktop or the mouse movements.

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  • tracyg77 Jan 09, 2009

    very dark screen as soon as i turn on my laptop. i can barely see the windows, pointer, etc if i strain and look really, really closely. i tried opening it up and wiggling around wires, rebooting, etc. i am most likely going to try reformatting the hard drive but i'm not sure that's even going to fix the problem. any information on how to fix this (besides take it to a repair shop, since i don't have the money to do that) would be greatly appreciated.

    thanks

  • kathy_morris Feb 26, 2009

    My computer screen in very very dark, and you can barely see anything. When I restart the computer, windows loads and I can enter my password (harly visible), and my desktop opens up. I think the computer is working, there is just something wrong with the screen. When I restart it, it lights up for a second, then goes dark. How can I fix this? One minute the computer was working perfectly, then when I came back to it, it was still running but the screen was almost black. How can I fix this?

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  • 137 Answers

First check your brightness settings and restart the computer and charge it fully and turn it off overnight and all that good jazz. I'm guessing that this is more complicated though.

Laptops are lighted with small fluorescent bulbs, like the 4ft. bulbs in overhead lighting in office buildings but much smaller. My guess is that this bulb failed or (maybe more likely) the part of the computer that creates the charge for this bulb failed (the inverter board). Fluorescent bulbs require a high voltage to get started (around 600v) and this inverter board turns the 5v charge on the motherboard into the 600v required to start up the bulb.

The good news is that most computers have an inverter board that can be replaced.

You should check ebay and google for specifics on the inverter for the A135, HERE'S ONE on eBay that would not be too difficult to replace if you don't feel squeamish about opening up the LCD case of the laptop. You could also try contacting someone on Craigslist or at your local computer repair shop and have them do it.

Whoever does this should first check to make sure the light bulb is not burned out and that the inverter board is getting the proper incoming voltage.

Posted on Dec 01, 2008

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