I just pulled this old receiver out of storage to give to a friend and I'm having one issue with it. I get sound through it, but I am unable to adjust the volume. It sounds great, but it's pretty much useless without volume control. I'm aware of the on screen menus, but I think I may have lost the remote. I had a basement flood a few years back and it may have been one of the victims. Any help would be great. Thanks.