Now i got a power supply with +12 and -12 and another old unused USB.
Correct me if i'm wrong.
1. Combine pin 7 and 8 and link them with power supply -12v
2. Combine pin 1 and 6 and link them with power supply +12v
3. pin 2 to 5 is for USB
Use the same type of 12V power supply an external HDD would use.
You See the power pigtail they are using in the PICTURE? That's how it works, the two 12V to the center of the plug, and two grounds to the outside of the plug. This is the only addition to the kinect plug the 12V & 12V ground pins, all the USB stuff remains the same. You use the +5 and GND from the USB port, so you wire 6,7,8,9 like you would, to a USB pig-tail, as shown in the picture. You are only wiring in an external power source, that goes directly to the Kinect device.
If you knew the wire colors to what pin, you could simply CUT the kinect plug off, and then splice in the power and USB port to the cable wires itself, rather than make an adapter. The adapter is so you can use it on both NON SLIM, and SLIM models. Kinect would still work on a slim if you did it this way, you just won't be using the kinect port anymore, just one of the USB ports, making it portable...
thanks for the info, anyway, is that a must to use a 12V power supply of an external HDD?
I got an extra 12V power supply(from unknown device).
I said you use that TYPE of supply, as long as it's 12V, at about 1 amp, or 1000mAs. You don't want to put a 12V at more than 1.5 amps to the unit. The 12V is for the motor that positions the camera, it doesn't have to be a high amp supply. I don't know what power supply you set on using, but it doesn't need to be anything fancy.
I am not totally clear on the AMPS, but it can't be too high, I would guess not more than 2Amps total...