Hi. This is Meow Wei on YouTube.
The article you've seen on ptt.cc is posted by my friend as we are getting from the same dumpster find.
I am forwarding the information here:
Currently I measured the power cable to be like this:
DB15 Female 12V (12.6V measured) 2.5A (Labeled on the adapter) or 0.5A (Labeled on the keyboard)
Vin 12, 13, 14
GND 4, 5, 6, 8
And a bunch of passthrough pins from the kmd3 breakout box (keyboard/mouse switch), which is then connected to the terminal I guess. I actually don't know yet if the breakout box requires power or not since I haven't really tested it.
The model I've got is a G80-9039HAAUS, which although looks identical the circuit boards uses SMD components instead of through-hole to manufacture. Also, the UART chip is replaced by a FPGA, though I don't actually know what it is doing.
I also dumped the firmware and modified the boot logo to be the newest Reuters logo too, although I found nothing that can change the keymapping or is difficult for me to do so. (I don't do reverse engineering, and I miss Windows key as I need it really much)
Here's the pictures of its internals:
https://www.flickr.com/photos/medicalwei/albums/72157687379663331UPDATE: The internals of the breakout box is also uploaded. It seems that other than connecting to a Sun computer the breakout box doesn't need extra power adapter, but the power pins are also passed through the breakout box.