BACKLIT KEYBOARD MOD (from www.popsci.com)

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What good is that portable PC if you can’t type anywhere and anytime? With its ultra-compact keyboard, even touch typing pros will be hard-pressed to avoid frequent mistakes on when the lights go out. To say it’s a frustrating exercise in futility to locate the miniature F3 key in the dark is an understatement. Oops, you just lost WiFi contact by accidentally hitting F2.

Clearly, a keyboard backlight like those found in higher-end laptops is the answer to your nocturnal Eee PC typing woes. And for less than $15, such a backlight can be installed with minimal fuss.

Time: 3 Hours
Cost: $13.50
Difficulty: Moderate

Parts

Steps:

 

Open ‘er Up.
Before beginning, remove the battery from both the Eee PC and the Techno Flash EL Wire device, and be sure to touch a grounded metal object to discharge any static electricity. Release the keyboard from the PC’s case base. There are three small dents along the upper edge of the keyboard that must be depressed for tilting the keyboard up and away from the case. Detach the keyboard from the main PCB and locate and remove all of the screws from the upper and lower case halves. Separate the case halves and leave the PCB seated in the lower case half.

If you need more visual guidance for opening the Eee PC, see this tutorial.

WARNING: While Asus has been somewhat non-committal on the warranty status of hacked Eee PCs, adding this keyboard backlight could very possibly void your warranty, so proceed at your own risk.

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Snip and Tuck.
You will be attaching the EL Backlight to the metal keyboard tray in the PC’s upper case. Test fit the EL Backlight on this tray. If the backlight is too wide, carefully trim the clear plastic from its two longer sides. When you are satisfied with the backlight’s fit, carefully bend its two solder tabs up, perpendicular to the metal tray and fasten the EL Backlight to the metal tray with a small piece of double-sided tape.

EL Wire, I Presume?
Snip off the EL wire from the Techno Flash. This will leave an approximately 18-inch length of black cable attached to the IM-4 EL inverter power source. Carefully remove one-half inch of the black cable and reveal a black and red wire. Strip and tin the ends of these two wires.

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Take the Low Road.
Snake the red and black wires (along with the black cable) inside the Eee PC via the security lock slot in the right-hand side of the lower case. If the black cable is too large for safely slipping through this slot, carefully strip away more of its length without damaging the black and red wires that are encased inside the cable. Route the black and red wire ends through a small circular hole on the right side of the metal tray and solder the wires to the two EL Backlight solder tabs. Ideally, these two wires should not rest on top of the metal tray.

Polarity doesn’t seem to matter with these solder tabs. Therefore, solder the red wire to one tab and the black wire to another tab. Insulate all wires and solder tabs from any contact with the keyboard’s metal tray. Test your wiring. Add two batteries to the Techno Flash and turn on the inverter’s switch. The EL Backlight should glow a nice bright white/blue/green color. Remove the batteries and carefully close the Eee PC, fasten all screws, and connect and reseat the keyboard. Don’t force the keyboard back into place. Make sure that your wiring, solder tabs, and insulation aren’t interfering with the keyboard’s proper seating.

Sticky Situation.
There was a lot of hand-wringing over how to fasten the Techno Flash to the exterior of the Eee PC without greatly compromising its portability. While this is a personal design issue, we settled on using good 'ol Velcro, attached to the outside of the LCD. Remove the belt clip from the bottom of the Techno Flash. Attach a strip of Velcro hooks to the underside of the Techno Flash. Find a suitable site on the outside of the LCD cover and attach a strip of Velcro loops. Choose this site wisely—this is where the Techno Flash will be permanently mounted on your PC.

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Glow Little Glow Wire, Glimmer, Glimmer.
Install batteries in the Techno Flash, insert the Eee PC battery, turn on the PC, and turn out the lights. Ugh, can’t see a thing! Now flick the switch on the Techno Flash. Ahh, now you’re typing in the dark, and constant mistakes area a thing of the past.

 

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