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How to install a keyboard backlight
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Fresh-Faced Recruit
Join Date: Feb 2006
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I'm trying to figure out a way to fit EL lighting strips behind my keyboard and draw off the LCD power to light them in my 12" Powerbook. I know how to get to the power inverter, but does anyone know if it's possible to draw off of it without screwing something up? I know someone did this using LED lights on an iBook before. Any insight would be appreciated.
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Fresh-Faced Recruit
Join Date: Jan 2006
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yeah i would be really interested in something like this, wouldn't mind hearing from people in the know...
edd
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Professional Poster
Join Date: Mar 2004
Location: UK
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You may affect the max. brightness of your LCD by doing that. LEDs would be alot less power hungry.
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Grizzled Veteran
Join Date: Feb 2006
Location: Northern VA
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That sounds very interesting, if you happen to do this, please post some pics.
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iMac 24" | Core 2 Extreme 2.8GHz | 4GB RAM | 500GB HD
PowerBook G4 15" HR | 1.67GHz | 2GB RAM | 100GB HD
R.I.P 1995 Toyota Supra NA-T
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Mac Elite
Join Date: Mar 2006
Location: Here
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It seems like it would dim the LCD to do that. That may be worth it, but still. If you are terribly ambitious, you may try to draw the power directly from the battery.
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Professional Poster
Join Date: Mar 2004
Location: UK
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If you use small LEDs, and plenty of shiny surfaces to maximise reflections, you ought to be able to run a couple from the keyboards bus power. The keyboard already has a couple of LEDs for the caps and num lock keys, you ought to be able to add a couple more from those and bypass the switches they use. Bit fiddly in practise, but much simpler in theory.
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Grizzled Veteran
Join Date: Mar 2000
Location: meow meow meow meow, meow meow meow meow, meow meow meow meow meow meow meow meo
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there are lots of places to draw 5V from ... the USB ports for one. thats easy as hell. and don't use EL... anything thats gonna use an inverter is gonna be inefficient. use LEDs that shine through clear plastic bars or something.
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sine -''-..-
now known as pillowcase
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Mac Elite
Join Date: Mar 2006
Location: Here
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Originally Posted by beatpanda
I'm trying to figure out a way to fit EL lighting strips behind my keyboard and draw off the LCD power to light them in my 12" Powerbook. I know how to get to the power inverter, but does anyone know if it's possible to draw off of it without screwing something up? I know someone did this using LED lights on an iBook before. Any insight would be appreciated.
Care to post pics?
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