for Technics SU-R1000 owners....unit already discontinued? where to service?

I think I have some minor software issues with my out of warranty unit

My first touchpoint with Technics/Panasonic Canada has them indicating the unit is discontinued and no suggestions on where to have serviced

I can't envision too many local techs having the software expertise for this, the nature of digital type amps I guess

Have any current owners found a repair centre that can work on these?