deskthority

The picture is a bit irritating because one LEDs will not draw 150 mA ;) What is the "ton of chips"? The only thing which could be there is a circuit for brightness control.

It's easy to calculate the series resistor. Subtract the LED voltage from the supply voltage, e.g. 5V - 3.2V = 1.8V. If you ...

huttala wrote:I just figured out another thing, the coltage from the powersource in the keyboard might be other then 5V

Where should another voltage come from? There're only 5V from USB, so I'm quite sure, the developer used this. But check it with a multimeter to be sure.

huttala wrote:since I'm assuming that the LEDs on the Corsair board (and every other board thats backlit) has paralell connected LEDs.

As I can see the LEDs should be in parallel connection at the K60.

I read that they won't turn on if they get less current than 20mA, but that cant be true can it?
It's simply wrong. The voltage has to be high enough but the current can be reduced.

Here you can see a diagram from a datasheet:
http://www.abload.de/img/ledfoyqy.png

The lower the current, the ...

At first you need the correct value for the resistors. If you have found it, you can take the cheapest resistors with the correct size (measure at the PCB) and +/-1% tolerance. The correct category in the shop is: https://www.elfa.se/elfa3~se_en/elfa/init.do?toc=19543&name=Metal%20Film%20Resistors ...

@huttala
Test the LEDs outside the keyboard. If you solder and desolder them or the resistors several times you can damage the PCB. You could also select the LEDs for same brightness.

If you solder with a normal heatgun you could damage the switches and other heat sensitive parts. I wouldn't do it.

And yes, that might be to bright, does anyone have any idea what LEDs they use on the mechanical keyboards that are backlit? I'd like to have LEDs that gives a little bit stronger light then they do, since I'm not going to use transparent keycaps for the lighting.
You can use your ultra bright ...

Look here: http://www.babooforum.com.br/forum/index.php?/topic/757546-corsair-vengeance-k60-review/

The PCB has pads for LEDs. There are also pads for the series resistor (next to each switch/LED). Can you solder such small SMD resistors? Looks like 0603 (1,60 mm length).

You have to take low ...

Are the layout files for the PCB and mounting plate available? So I could order it by myself.

I'm also interested (Germany).