Just guessing, but does Peter Ledermann of Soundsmith reapir HK. I would call him and ask. Is this an old unit or a new unit and still under warranty. That may affect your choice.
Audio repair in New York State
I'm in the Hudson Valley NY Orange County. (near the chopper guys) Looking for a competent repair shop to fix my Harman Kardon AVR-340. Not getting much information from HK support. I've found one local shop that is currently repairing my Denon AVR-4802R, but he's had it over a month and not sure if I made the right choice with that, but hoping for a good result. Meanwhile any input would be appreciated. Of course it would help if I could find a repair shop close by, but if I have to ship it out I would consider that option. Just seems like such a gamble finding competent repair people.
Thank you!
Thank you!