Question about Dell Inspiron 1525 Notebook

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My Dell inspiron 1525 works fine on an external monitor, but when it come to it's LCD; it works with a very low light, I can hardly read what's displayed on it, I tried a working LCD from an other laptop, but I got the same result. please help me to solve the problem

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  • five1000mile Sep 09, 2010

    Thanks for the effort, but this was the first thing I tried, but it didn't work, if you have any other solution; please tell me.
    Thank you again :)



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Try increasing the brightness of the system. Laptops have "Fn" combination buttons that allow you to use some shortcuts. Look for a button on the keyboard that usually looks like a sun or bright object with an arrow pointing up. Press and hold the "Fn" button down and press the designated button to increase brightness.

Hope this helps!

Posted on Sep 08, 2010

  • 1 more comment 
  • five1000mile Sep 09, 2010

    Thanks for the effort, but this was the first thing I tried, but it didn't work, if you have any other solution; please tell me.
    Thank you again :)

  • DarvinLee
    DarvinLee Sep 09, 2010

    Looks like the backlight of the LCD is going bad. Since it works good with external monitors, and you already tried adjusting the brightness using the Fn keys, there is a big percentage that the backlight is going bad. If the system is still under warranty, try calling Dell. If not, try to look for a local computer shop. It will be quite expensive if you call Dell without any hardware warranty.


  • five1000mile Sep 10, 2010

    I tested the backlight of the LCD and the inverter on an other laptop "same model", both are working well. I even tried to connect an other LCD " with new inverter and new cable" on this laptop and I got the same result, I think it's something wrong with the mother board, not the LCD. what I need to know is what in the mother board can cause this, and how to fix it?



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If you have an external monitor, try connecting the laptop to it, then toggle FN+F8 to project display from lalaptop to external monitor.

If the external monitor does not have a display aswell (totally blank) , then its a problem with the video card.

You can also run an LCD Bist test by turning off the system , then while the system is turned off press D + power , If you dont hear a beep but no display at all, then its an LCD problem.

Hope this helps

Thank you.


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