Question about Dell Inspiron 1525 Laptop

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Dell laptop screen goes blank when ac adapter plugged in

I have dell laptop 1520 inspiron, which is purchase on february 2008. When I attache power adapter, screen goes blank and with battery it is working with some screen flickering. please advise how to solve this problem

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I believe I have found the problem with the 1525 that I am currently working on which has the same problem that you describe. Ultimately I think it's a problem with the inverter in the LCD. When the laptop is powered by battery the brightness is lower than full. When I plug in the power adapter the brightness goes to "full" and I hear a faint sizzle and the LCD's backlight goes off. Same as if you hold the Fn key and press the up arrow to brighten it, it will do the same thing when you reach near the full brightness. So for now I have fixed this problem by going in the Power Options and clicked on Adjust the display brightness on the left. Slide the slider to the left on the "plugged in" part and now when you plug it in it shouldn't make it go blank. I do want to note that I hear a faint buzz coming from the LCD when I plug it in. That must mean the inverter is faulty. WAY TO GO DELL!!!!!!

Posted on Jul 24, 2010

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Have the battery checked

Posted on May 23, 2009

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Dell Support > Inspiron 1520 Notebook PC > Service Manual,

http://support.dell.com/support/edocs/systems/ins1520/en/sm/index.htm

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