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Roland sp-300 High Pitch Sound!, turns on without pressing power buttom.

Discussion in 'Roland' started by rafaelrarg, Feb 14, 2019.

  1. rafaelrarg

    rafaelrarg New Member

    Nov 27, 2018
    New Jersey
    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.


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