Question about Dell Latitude C640 Notebook

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LCD Dark Hot Spot in lower Left hand cornor

After a while i get a dark hot spot in the lower left hand cornor. Do i need a new LCD or a inverter not sure what to do.

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  • Mike Cooper May 11, 2007

    Well, I found out that the dark hot spot would subside if i turned down the contrast and brightness, however the back light went out a day later. So, I had a old Dell Inspiron 4100 with a 14.1 LCD so i swaped them and now the problem is solved. Thank you.

  • malekhar Nov 11, 2008

    I have an IBM thinkpad R51. My notebook LCD became hot especially at the left bottom corner and a black spot emerge from that corner. I switch off my notebook but the problem still occur few minutes i turned it on. Please give some advice.

  • sandyprak123 Dec 24, 2008

    I own aToshiba laptop.As soon as I turn it on,the lower right hand corner of the screen starts going black and is extremely hot to the touch.Can someone tell why this happens? And solution to fix it !!

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1 Answer

Armando Babb
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Well the inveter powers the lamps in the LCD itself. If the lamps come on ,you don't need a new inverter but more than likely just a new LCD! hope this was helpful regards, babb

Posted on May 10, 2007

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My dell inspirion 6000 laptop screen goes black but sometimes I can see the windows screen but it's very dark. When I attach it to a desktop monitor it works fine but the laptop is still dark. Sometime the...
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When I first turn on the set, part of the screen is dark, not black but dark. The area of the screen that is dark moves around. It will be like this for 20 minutes or more. The problem sometimes comes...

Hi

It could be a power supply problem or an inverter board problem or something internal having to do with the backlighting of the unit. remove the inverter, and look at the back side and you will see a hot spot, now on the other side of that hot spot, re-solder the service mounted components and that should take care of your problem.

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