Question about Dell Latitude E6400 Laptop
I have an e6400 that had footlights at the bottom of the display..looks likehalf the lights alight and half off. Is this a symptom of a led backlighted LCD? If you giggled the power cable at the bottom of the LCD they would all light .. but it got worse and now none light? Is this a common problem? How t fix?
If you are sure the LCD is off, is symptom the you must replace.
You can run the utility for diagnostic, you can connect another monitor? and test. Otherwise you need to replace it by yourself, or go to the repair shop computer.
God bless you
Posted on Jul 30, 2013
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Posted on Jan 02, 2017
What do you mean exactly?
To increase or decrease the backlight brightness use Fn-key(next to left Ctrl-key) with up and down arrows.
There is not some key-combination to turn off the screen, you can make your computer turn it off after some time (if you're using XP this can be done in control panel->Power options), or just close the lid :)
Posted on Mar 25, 2008
The inverter is in the LCD, below the actual screen. It controls the brightness and the contrast on the laptop. Here is a link where I purchase them:
It is easy to replace. Here is a link that will guide you:
Posted on Apr 21, 2009
This model laptop uses a CCFL lamp for the backlight, it does not use LEDs for backlighting.
The CCFL lamp is attached to an inverter which supplies high voltage to this lamp.
For details on how to install and or replace CCFL lamps go to
www.lcdparts.net for information and parts.
I assume you are not replacing the whole LCD screen.
Posted on Jun 02, 2009
SOURCE: no backlighting on keyboard
The backlight is intergrated into the keyboard itself, so your problem does not seem to be a keyboard problem. Make sure you have tried toggling the backlight (Fn + right arrow) and that when you fitted it, no connections are loose.
If all else fails, and your warranty is still alive, contact Dell again and describe your problem.
Hope this helps,
Posted on Sep 13, 2009
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