Question about Apple 15" PowerBook G4 Aluminum 1.67 GHz LCD Display (p/n 1002587) (661-3749 1002587) Mac Notebook

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Lcd is not working

I drop my PowerBook G4 and when i turn on the my Powerbook the screen was not working. everything was fine except the screen i can see a shadow of a picture and words at the screen but the thing is there is no light. can you please give some tip on how to fix this thanks

Posted by Rowell Galarido on

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Anonymous

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This could be a backlight issue, an inverter issue or a logic board issue. Given that you dropped it, the backlight issue is the most likely because the ccfl bulbs inside the screen are breakable. Backlight repairs are somewhat difficult. As much as I would like to be able to tell you a quickfix that will solve backlight the problem, it's a pretty arduous repair that requires 1-2 hours for a trained person. It's feasible to do it yourself if you're tech savy, but you'll most likely have to google for guides that show you exactly how to replace the backlight step by step. Check on ifixit on how to take the screen apart and make sure inverter is still connected properly. If so, you have a backlight issue. I work for Mac Repair NYC and i have to fix this problem a lot, it's so easy to break the lightbulb in the process.

Posted on May 27, 2009

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Yes I agree known problem with this model when dropped cathrode cable discconects from the device on one end. Allowing you to see some kind of image on the screen. i can fix it fo you. If you like check my website.

Posted on Feb 10, 2008

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You've either broken the Cold cathode (a strip light that runs along the bottom of the LCD to provide a backlight)or damaged the inverter board (a chip that boosts the 24.5V of the laptop's battery to the 400V that the light needs to work) unless you fancy ruining your warranty and getting your hands dirty with replacing the board ($40-$90) or the LCD ($400-$600) i'd do as the guy says and have a certified tech have a look at it. of course, there's no fun in that, but you're more likely to get a working machine at the end of the day...

Posted on Jul 28, 2007

Anonymous

I'd highly recommend taking into the Apple Genius bar. You've definitely damaged something. You might be lucky and one of the connectors came loose, but most likely you damaged the LCD which will need to be replaced.

Posted on Jun 29, 2007

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