Many banks for the TI where made in earlier models. I have a list of all the TI soundbanks, if any are missing, i appreciate the messages to update the list.
As you can see it's quite a list, the date can be a guide to which synth the bank was made in. If the date was before the TI release, it wasn't made in the TI. Those with an X pre TI too as they have a SysX file to load the sounds, the old way of doing it.