Yamaha receiver memory problem
Although I haven't seen any posts similar to mine, I'm hoping someone will be able to help me.
I have an older (1980s) Yamaha 2-channel receiver: the R-8. It works very well, except for the programmable memory, which more often than not "forgets" the radio stations programmed into memory when turned off. Even in standy mode. Even if switched off and then back on a few seconds later, the memory channels are empty.
Yamaha's only suggestion is to contact a repair center.
I've had experience soldering and working on electronics and would like to try to fix it myself. Can anyone point me in the right direction? By the way, it's not just a matter of replacing the battery, because there is no battery.