Yamaha portasound pss 360 speaker distortion

Seems to be related to the power chord maybe? Sometimes the sound is very low, other times normal but with lots of static and distortion. I’ve tried playing with plugged in with external speakers and the same issue. Think it’s fixable?

Most likely this is leaking capacitors on the circuit boards. Since this unit is from 1986, it’s time for a new keyboard…good luck finding a service manual for it.