NMB Tech RT8756C+ cable

[Superwip]

I found a NMB Tech RT8756C+ in the electronic waste of my university a while ago, unfortunately, it's cable has been cut off. Does anyone here know the color code of the cable or which pins on the internal connector belong to which PS/2 pins? Or is there a datasheet of it's NMB86151164 controller?

[jsheradin]

Find a power capacitor and it should tell you VCC and GND. DATA/CLOCK won't do any damage if you have them incorrect so flip a coin, try it, and swap them if it doesn't work.

[Muirium]

Engicoder has a nice writeup of the generations in the Wiki. Just a shame he doesn't have any PCB shots!

wiki/Hi-Tek_Series_725_keyboards#Generations

I've a 4th generation that I modded with internal Teensy (and a USB C port where the old cable used to go). Don't know if they're the same pin sequence though.

[hellothere]

This looks close enough to the non-terminal ones from the inozenz group buy. If you can't get the wires sorted, RSVP and I'll see if I still have one and I'll play with my multimeter. You might also just want to Google some images of this keyboard. You might find all the wires and which one maps to which pin.

[Superwip]

Okay... based on the PCB I figured out that red is Vcc, black is GND. I just tested it out afterwards and figured out that brown (pin 23 on the controller) is CLK and white (pin 24 on the controller) is DATA.