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Need Help Roland Sp-300 loud pitch noise, turns on without pressing power buttom


New Member
Hello, I am having a problem with my Roland SP-300. When I put the switch to the on position the printer turns on by itself and makes a loud pitch noise. Servo board led bulb is off, motherboard and printer head board led bulb is on. Any idea??
I checked all the wires to make sure they are fully pressed and connected, fuses are ok.
You can see what the printer is doing is the link below.