Unfortunately, there are many "repair shops" that have an old curmudgen on retainment who swings by one day a week to pick up repairs to take home and if a PCB is involved, won't even look at it.
You can't really blame them as with electronics and newer items, you are at the mercy of the manufacturer to publish information/documentation and supply parts which often enough they do not do and nobody wants to pay reasonable labor rates for the work.
