Yamaha PSS-270 no sound
I have had this keyboard for a while. It was always stored in the basement. Since recently moving, I wanted to try to get it out and play it. It powers on and the display comes up. I can hear the speakers power on. However, when I try to push the keys there is no sound. There is also no sound for the beats and instruments. Does anyone have any troubleshooting tips? I couldn't find any switches on the back.