Question about Toshiba Tecra 8200 Notebook

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Laptop monitor problem

I have been using this old laptop exclusively to play video. So I have not used the laptop's monitor for some time.

In order to use the laptop connected to the TV I had to switch video output modes by holding down "fn" & pressing F5 to toggle video modes.

But now, I want to use this laptop again as a laptop, with the laptop's LCD screen. I thought it would be a simple matter of disconnecting from the TV & toggling through the video modes to get the LCD back but that doesn't seem to be working. It was quite a while ago that I connected the 8200 to the TV, so while I can't remember, I'm wondering if I made a change in settings to deactivate the LCD. If I did I can't find it now to re-activate it.

Any help gratefully received,

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  • Delg Mar 25, 2008

    I am also aware that you sometimes need to wait a few seconds before video mode switching activates.

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Sounds like the inverter has gone out or backlight of the laptop has gone out.

you would normally see a logo or something when you removed the TV from it, you can boot dual lcd with laptop on and TV. so i doubt something is turned off.

when hitting FN and F5 usually take about 3 sec to refresh the screen. but looks like the LCD screen on the laptop has failed and need to be replaced or the Backlight or Inverter has to be replaced.

Posted on Jul 15, 2008

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1. Loose connection between the video cable and the LCD screen.
2. Defective LCD screen.
3. Defective motherboard (I assume the graphics card is integrated into the motherboard).

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I always check the video cable connection first. Reconnecting the video cable may fix your problem.
If reconnecting the video cable doesn’t help, most likely you have a problem either with the LCD screen or with the motherboard.
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You’ll have to disconnect the video cable from the LCD screen and the inverter board. After that you connect another working screen and test video.
The original screen is white but my test screen works normal and I can see the image. After this test I can tell that the problem must be related to the screen.
After I assembled everything back together and connected the original LCD, it’s still white.
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In my case this problem is related to the LCD screen and it has to be replaced.

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