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  1. gwb21471

    Performa 550 help

    The guy I bought it off of replace the capacitors back in 2018 he told me on the motherboard and few on the analog board that needed it. After he did that it work great for a year and it just went off and never came back on. I think the power supply maybe bad.
  2. gwb21471

    Performa 550 help

    I have a performa 550 that i been restoring slow. When i first got it it wouldn't do anything. After i bought a new battery and clean the contact on the motherboard and the other boards. Now when i hit the power button on keyboard i get a buzzing like sound in the speaks that sounds like a chime...
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