I need th p150hm keyboard schematics.

i think that i may have thought of a way to make the keyboard back-lit. if you take some 2mm clear plastic rods and run them through the under side of the keyboard, and then shine leds through the ends of them it should light up the holes between the keys. i dont really feel like taking apart my new machine yet so if anyone has pictures or the schematics of the keyboard i would greatly appreciate it. perhaps using the ne picaxe 14m2 i could even make a fully adjustable 32bit rgb led backlit keyboard.

 

actually i took it apart to look, and there are plenty of holes underneath each key, for light to go through, but im not sure what kind delivery system could be used. the first thing that came to mind was so thick fishing line, with leds on the end, or perhaps the light defusers that are used in lcd screen, could be placed behind the keyboard.

 

What do you have in mind to deliver power to the LED's?

 

well there are several ways to get power from the mother board. i could just connect into a non used port, or solder a couple wires for 5v power from one of the usb ports, like the one for the e-sata/usb. then make a small pcb with all of the components and fit it into a small pocket i found where some sort of other addon was supposed to be. i believe the standard technique for an on or off switch is using the scroll lock, or numlock, but an extra button can be added in the sound grill. in addition you could make it be sound sensitive, where it would light up parts of the keyboard, depending on the direction and intensity of the sound.

 

I can guarantee this will void your warranty if you mess with the motherboard though. Also, this will drain more power from your laptop than usual. Are you sure this is what you want to go through?

 

there are other ways to get power, like connecting to an unused internal port.

 

True, and that'd be fine, but again I will make sure to tell you, it'll draw more power than usual. If your CPU + GPU grab as much power as possible from your power brick, and it's nearing the limit, and backlighting crosses that limit, then some part is going to be starved for power. Might have adverse performance effects. Of course, I have no clue if it'll drain over the upper limit of your PSU, as I don't know exactly what cards drain what, but it's just something to keep in mind.

 

There is tons of room inside the system. Just run the low energy requirement LEDs off a separate battery in the back compartment or in an HDD caddy, etc. There are so many places to install a battery box of some kind.

 

The energy consumption of a few LEDs is almost nonexistent. It will never have any impact at all on overall power drain or power limits. The situation you are describing is impossible to happen unless he went with some crazy energy hungry method like a CCFL.

 

i put cfls in my 360 one in each vent, and one in the hard drive. they were green, but no the power requirement is minimal at most, think of the accessories that one adds to their computer: usb powered fan cooler, external hard drive, led spot light thingamabobber, the list goes on. another possibility is using el wire, but it would need to be extremely thin, and i would most likely need to take apart the keyboard, and i think standard el wire is 2.3mm thick, but ive seen as thin as .9mm the thickness of a pencil graphite. I've done some mods like this before, and they can be quite fun and rewarding if done properly.

found a site, and they have a kit with 0.9mm el wire and the inverter for 10 bucks and its powered off of a 1.5v battery.

I know that usb is 5v but what about other ports in the computer, and are there any internal usb headers, or anything like that, that is internal?

 

There is the internal mini slot for the 3G card reader that has power on one or more pins as well.

 

ah yes i saw that slot last night, and it should have plenty of room for a small inverter if do the el type lighting. does anyone know where i can buy a keyboard?

 

I wouldn't worry about power consumption unless you are putting an LED under each key.

However, I seriously doubt of having a few LEDs around the keyboard will light up the "keys"... the problem with these key is that they aren't "transparent"

 

yes i know that, but it will allow enough light to be able to read the keys, plus it will look cool.

 

they build in a little over head to accomodate for accesories and attachments. other computers have backlit keyboards, and they didn't have to increase the wattage of the psu. have you ever noticed when gaming on max that your screen starts to dim? no i don't think so. sorry if i come across a little harsh, but im trying to make a point that its just like any other acessory. the power consumption of el wire is 200mw per meter. just to give an idea my xbox controller is rated for 500mw. and the cpu most of the time will never reach 45 watts, even when playing on full the highest ive seen, was 60% usage.

oh and about the

 

My PSU is 220W, I'm on a D900F with a 280M. My screen doesn't dim; there's enough ample power here. I don't know about other laptops.

 

I actually have tried wiring some Akasa EL wire up, but the inverter is kinda big for that slot...then I got lazy

 

ive been doing some research, and it seems that you can actually get electroluminescent panels. if you could remove all of the keys, and then cut the sheet to fit and work with the keys, all that you would need is to fit the inverter in the slot, you could reduce the size of the invertor, by removing the case and shrink wrapping it.