Posted 09 February 2011 - 01:49 AM
You probably do not need a new screen. If the computer still works and you can see the display if you shine a flashlight onto the screen, then you have either a bad CCFL (Cold Cathode Flourescent Lamp) or a bad LCD power inverter. To prove this to yourself, connect the laptop to an external monitor and direct the output to the external monitor using the appropriate Function key, or from Control Panel/Display/Settings (using the flashlight to see what you're doing). If that works, then go for a new inverter since it is usually the culprit (and is the easier and less expensive to replace). Installation is (usually) easy. Search with Google for a tutorial for doing this. These devices are both (usually) somewhere under the plastic surrounding the screen (the bezel). You can (usually) remove the bezel by unscrewing the screws that are (usually) beneath the rubber bumpers at the top and bottom of the bezel. Just pry the bumpers off to access the screws. The inverter has plug-in connections. It can be replaced in a few minutes. The CCFL has solder connections and the connections must be shielded with special tape and caps so radio frequencies don't leak into your computer and cause interference. But if you know how to solder, it, too, is fairly simple to replace. Both of these parts can be bought inexpensively on ebay. I just bought a new inverter for a Toshiba laptop for $8 on ebay. The CCFLs are a bit more, maybe around $20. That's why you try the inverter first. If that works, you don't need a new CCFL. If you don't mind using parts that have been harvested from laptops that were turned in for recycling, the price is even lower. If any of this sounds too complicated, you can buy a whole new screen, but in my opinion, replacing the screen is the same level of difficulty as replacing the inverter (and way more expensive). Any computer repair shop can do this fix, but it's likely to be pricey. If you can't do it yourself, and it's an older laptop, you might be better off putting the money toward a new laptop. Hope this helps.