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hk580i

  1. ChrisP2

    DC Offset Issues - Harmon Kardon HK580i

    Struggled for several weeks off and on with an HK580i that had 6.7-7.0 VDC at the speaker terminals on one channel and neither the Offset or the Bias POTS had much effect. Issue was the OEM glue on the back of the Amp board holding down C431 (electrolytic). Over the years the glue had...
    • ChrisP2
    • Thread
    • dc offset harmon kardon hk hk580i
    • Replies: 3
    • Forum: Solid State
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