I'm posting this in my desperate attempt to resolve a very annoying problem with my sound system. For a while now it is stuck on its maximum volume which makes it almost impossible to be used. The remote control does not work and the actual buttons on the receiver itself also do not work with the exception of the "TAPE" button.
I opened it and checked the buttons mechanism. It looks fine. All the buttons have a satisfying click to them and I couldn't see any broken or loose parts. There was also virtually no dust accumulation on any surfaces.
So any suggestions what it could be and if it is fixable?
Right now I have my phone hooked up through the aux outlet and use the phone volume. When the Bose customer number is eventually working, I'll contact them. I sent in the unit more than 10 years ago for repairs and they were awesome.