Sorry to jump in on your thread, I came across this thread searching for some info on the TS-110.
I too have an MZ-S as well as the 'coveted TS-110' but alas a couple of weeks back the end of that oddball connector came off mine whilst out in the field, never to be seen again
I have asked around all the usual places here in the UK to see if it is possible to repair but to know avail.
Would be really interested to know if you are able to order that particular part from anywhere.
As it stands at the moment I am considering putting a more standard connection on it to use with other cameras in the future.
Good luck with your search, I will let you know if I have any luck.