Onkyo TX-SR805 noise in one channel

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  • MegaZAC
    Member
    • Oct 2020
    • 49
    • Australia
    #1

    Onkyo TX-SR805 noise in one channel

    Surprisingly enough, this receiver doesn't have the DSP chip issue. The HDMI board does not get hot, and sound over HDMI works fine.

    Regardless of the input, the right channel has noise that is clearly noticeable even on average volume level. The only cases when there's no noise is when VCR input is selected (some tracks on the board are damaged, maybe that's why), or if HDMI input is selected but nothing plugged into it. In all other cases, even when no input is connected I still have the noise.

    There's some logic behind it. As soon as I select an input I get only left channel working, then cracking sound, then the right channel turns on, and noise as well.

    There are some traces of old repairs, but it looks working in general. What to check to locate the noise source?
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