Home › Forums › Help/Technical Questions › Octave Multiplexer hums when engaged

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  • August 28, 2009 at 12:21 am #78861
    h8mtv
    Member

    When I engage my new Octave Multiplexer it hums. I touch the box and hum goes away. Easy fix or send back?

    August 28, 2009 at 12:25 am #100961
    The EH Man
    Moderator

    It hums because it doesn’t know the words.

    Seriously, it sounds like there’s a bad ground connection somewhere. Open it up and see if the black wires are soldered at both ends. Also make sure the jacks are tightened.

    August 28, 2009 at 5:02 pm #100974
    h8mtv
    Member

    Well, this is one of the new NYC made ones. There are few wires and the jacks are mostly plastic.
    First time I have run into these and I must say I am not a fan. The only wires in here are the ones off the battery and the ribbon from the 3pdt to the circuit board. Is a ground wire missing?

    August 28, 2009 at 5:08 pm #100975
    The EH Man
    Moderator

    I assumed you meant one of the big box units. Probably no loose wires, then. I’d go back to the store and try another.

    August 28, 2009 at 5:12 pm #100976
    h8mtv
    Member

    Bought online…..

    I wouldn’t think this should be a hard fix, but I am just a phone man.
    Any other advice you could offer?

    It is definately a ground hum and when in bypass it does not hum.

    August 28, 2009 at 5:16 pm #100977
    The EH Man
    Moderator

    Are you using a battery or power supply?

    If using a supply, is it the EH one or other brand?

    August 28, 2009 at 10:58 pm #100993
    h8mtv
    Member

    I am using the factory new 9v battery.

    August 29, 2009 at 12:11 am #100999
    The EH Man
    Moderator

    I’d say either send it back or send to EHX for warranty reepair.

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