I've sent some Icom radios to this place:
Icom Authorized Service Center ? Michigan
SAR Technical Services, Inc.
1792 Nash Drive
St. Joseph, MI 49085
Phone: (269) 429-2334
The repair costs were reasonable and I had the radios back within a couple of weeks. They were great to deal with.
The repair center that Johny used is in Syracuse; NY specializes on Kenwood gear.