Some receivers have rechargeable CMOS batteries and some don't. So you might have a non recharchable CMOS battery that went dead. See if you can find it and replace it.
Hi, I'm a new member to the home theater forum. I am interested in upgrading my current home theater. I hope you can be of assistance to me. I currently have the following: 50 inch Hitachi RPTV (Non HD) Pioneer VSX-305 receiver (From 1997) 5 Decent speakers KLH 120 watt Subwoofer Philips...