Mg100hcfx Problems, Help Needed

Discussion in 'Marshall Amps' started by BJ Leader, Oct 7, 2018.

  1. BJ Leader

    BJ Leader New Member

    Oct 7, 2018
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    My Marshall's MG100HCFX has been having some issues. Every time I turn it own it has a constant low hum than never changes no mater what I do, ive run multiple guitars theough it, through my pedals and without my pedals, and ive changed every setting on the amp, guitar, and pedals and nothings changed. I can even take the cable out of the output jack and nothing will change. However if i jiggle the cable connecting the head to the cab, then and only then will the noise change from low hum to static. Video demonstrates what happens when I turn the amp on.
  2. Mitchell Pearrow

    Mitchell Pearrow Well-Known Member VIP Member

    Jul 2, 2018
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    Moreno Valley CA
    I would check the speaker cable first , then the speaker out jacks, have you tried the deoxit and in and out with the cables in the speaker jacks? After that and still no luck take it to a tech:( hope this helps, we never had a problem like this with ours! :2c: Also do all this without your pedal board!

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