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Laptop screen does not work

Posted on 2008-06-17
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Last Modified: 2013-11-17
I took a toshiba P10 laptop apart to change the DC Jack, after re-assembling it the screen does not work.  It powers up just no screen.  I've checked all the connections from the screen to the motherboard and they all seem to be fine.  Could it be a problem with motherboard or the screen?  Any help would be appreciated.
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Question by:jrobinson456
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by:rindi
ID: 21803421
I yesterday had a display problem with a laptop where an external screen worked, but the internal one had just stopped working. I too the laptop and the screen apart, checked the connections, they all seemed fine. I still unattached them, then reattached them, and afterwards it worked. I suggest you also reconnect all the connections (also those within the display itself).
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by:jrobinson456
ID: 21803445
I have unattached and re-attached all the connections from the screen to the motherboard.
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by:rindi
ID: 21803649
Did you also open the display itself and reattach the other ends of the cables?
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by:jrobinson456
ID: 21803861
No, but I didn't touch anything inside the display itself.  But I will try that.
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by:rindi
ID: 21804027
The PC with a similar error I repaired yesterday hadn't been touched on the insides at all prior to the error.
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by:Mark
ID: 21807766
Make  sure the mall pin that depresses when the lid is closed isn't stuck. This turns off the screen if its depressed.
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Expert Comment

by:Mark
ID: 21807770
sorry-->small pin <--not mall pin
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by:jrobinson456
ID: 21824480
I dont see a small male pin anywhere.
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Expert Comment

by:Mark
ID: 21826621
It's possible that there is a magnetic switch in the cover that shuts of the LCD when the lid is closed. In that case it would be very difficult to get to without disassembly.
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jrobinson456 earned 0 total points
ID: 21908830
It ended up being the motherboard.
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