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Digital Piano Won't Turn On

Discussion in 'Power Electronics' started by Violation, May 16, 2021.

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  1. Violation


    May 16, 2021

    I have a Technics PX-55 Digital Piano
    3 Years ago I didn't change the voltage adjuster on the back of the piano to 240V (UK) and it was at 120V but I accidentally turned it on, and heard a pop inside the piano, I turned it off quickly. Now I want to use it but it won't turn on

    How can I fix this?

    Last edited: May 16, 2021
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    Check for triggered fuses. Open the piano, check for burned components, most likely in the power supply part (a varistor may have blown, making that popping noise).
    Before you open th epianoi disconnect from mains power and let it sit for a few minutes to ensure all capacitors are discharged.

    You may upload photos of suspect parts (limit ~ 300 kB/photo).
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