I have a HK AVR85 surround sound receiver. The volume isn't
working correctly anymore. It is Either of two settings. Very low
volume or BLARING loud. Its variable adjustment doesn't work at this
moment. I tried to see if the microprocessor would reset after 2 hours
by unplugging it, but it didn't. Is resetting the micro processor the
answer, and if so, how is that done on this model? Thanks in advance.