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onkyo pre-amp

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    Need Help with Onkyo M-5090

    Hello, Anyone on here knows how to fix/trouble shoot these Amplifiers and maybe can guide me or recommend a service place that knows how to work on these in the Sacramento area ? I was trying to minimize the slight hum I have in the Right channel and to make a long story short, I did something...
    • ajaj
    • Thread
    • onkyo m-5090 onkyo pre-amp service help.
    • Replies: 17
    • Forum: DIY
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