looking at the Keyboard Profile it seems that it's supported only on MC40KK, MC92KK and MC18KK.
What are you trying to achieve on the TC75?
Trying to remap the trigger keys on the TC75.
There are 2 ways to do this:
1.) If you don't plan to change the behavior of the buttons once the device is setup I'd recommend using a MDM with the Button Remapping section in the TC75 - Integrator's Guide.
2.) If you're going to change the trigger behavior within applications you'll use a similar procedure but instead copy the key-config.xml file to a specific directory to be consumed. I've gotten this to work on a TC70 haven't had a 75 to test with but it should be the same. I can modify the application I have to be a sample application if interested.