Sounds much like the problem my sister reported to me on a Yamaha CR 1040 reciever I gave her many years ago. Recently she told me of distorted sound and volume level changes. A good internally cleaning of the controls are in order. If you up to it get some electro cleaner for such a purpose and after unplugging the unit, spray it quite well. Of course make sure all is dry before you plug it back in. Sometimes just rotating the volume knob and such quickly several times will surfice, if your not up to doing the internal spraying.
I'm in the process of doing this for her and replacing a few burnt out lamps. While doing this for her I have let her use a much more recent Sherwood unit. It surprised me that she could hear the difference in the two, and that she wants her now twenty plus year old reciever back.
I'm in the process of doing this for her and replacing a few burnt out lamps. While doing this for her I have let her use a much more recent Sherwood unit. It surprised me that she could hear the difference in the two, and that she wants her now twenty plus year old reciever back.