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negative dc voltage

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    ADCOM GTP 500 II - Negative DC voltage on RCA inputs

    Hi Everyone, This is my first post. I'm measuring negative DC voltage on the RCA source inputs. It moves to different sources as the source selection changes. Anywhere from -2.5 to -13 volts DC. It does not appear on the phono inputs though. I can listen to the phono input through the...
    • Erin Brigham
    • Thread
    • adcom gtp 500 ii negative dc voltage
    • Replies: 2
    • Forum: DIY
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