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The backlight on my laptop went out and i want to know how to go about fixing it, or how much it might cost to have it fixed?

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If you don't mind spending under $20 and have a couple of small screwdrivers and 2 hours to kill, it's not too complicated.
To replace the backlight, you'll need to disassemble the entire lid (often you can't get the lid of the laptop off without removing some covers and the keyboard on the main body). Keep those screws separate and labeled (I use an egg carton when I'm working on a new laptop, and often take a few pictures with a digital camera if I have one handy, especially if it has a macros feature for zooming in close).

Once you have the whole screen assembly (the entire lid and screen) off the main body, you'll need to disassemble it, then REMOVE the LCD completely.

NOTE --BEFORE you disassemble the entire LCD (or even somtimes remove if from the frame) to get to the backlight, unplug the current inverter (that long thin circut board with usually a plug at each end) and plug the new backlight into the inverter. Power on the laptop- bulb comes on? Great- you got the right part- it IS the backlight that burnt out!--

So pull the LCD out, then pull the tape and any tiny screws, saving both, and check the bottom area -usually the backlight is under a silver metal "tray" piece on the bottom of the LCD. It's a tiny long flourescent light bulb, with wires at each end.
Pull that out, and replace with the new one.

BEFORE you reassemble, plug the inverter in again (the little circut board you found in the LCD lid) and power the laptop on for a moment- after a few seconds you SHOULD see the bulb light up! Keep checking briefly as you assemble the laptop again- making sure you have everything plugged in correctly BEFORE you get all those screws back and tightened down!

Usually to have a shop do it can cost as much as a new LCD on Ebay -at least $60~120 USD. A backlight is about $15 and a new inverter maybe a bit less on ebay.


Posted on Sep 04, 2010


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