Got notice from Mackie that the replacement is on its way. Currently in Salt Lake City with a delivery date of next Tuesday. It's not the way I would want a bad connector fixed, but I can live with it and won't have more than an hour's down time. In the end, it's probably as good as taking it to a tech to have it fixed. I am afraid that after warranty, there might not be much expertise to repair these things. (Though replacing a bad connector is well within my skill set.)