For a time there has been a lack of good service facilities for the repair of tape decks but in time some of them have come out of the woodwork to make themselves know. This is a list of the ones I know do good work.
Not everyone is perfect and I even get complaints due to wait time. But on a whole these places 99% of the time will fix your unit well.
New Jersey Factory Service, Inc.
DROP-OFF BY APPT ONLY !!
Analog/Digital Audio Repair
Tom Brucker- Tom has retired
Crown repairs ,Chuck Ziska Ocala,Fl. 352-861-1052 firstname.lastname@example.org
In Florida we have a new high level Technician-
Vintage Stereo Repair and Restoration
Repairing and restoring analog audio components
Teac, NAD, dbx, Revox, B&O, Pioneer
For those in Italy-
In Canada there is Dean
Analog Heaven tape deck repair