Question about Marshall MG100HDFX 100-Watt Amplifier Head

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The guitar lead plug has fallen inside.

When I removed the guitar lead from the plug, it fell apart. One piece came away and the rest has fallen inside. I can't figure out a way to get to the plug.

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  • sb99512 Feb 18, 2009

    Thanks. Unfortunately, it is impossible to get access to the jack. I can get the top part of the back off, but all the tubes and things are in the way and I can't see how to get to the jack at all without actually removing all the corners of the amp which are riveted on. I think I need to get this to a shop!

  • sb99512 Feb 18, 2009

    There are no screws on the top - only rivets. The only screws are the ones that attach the back plate with holes in it that covers the top half of the back. This is a 100watt valve amp so maybe it's made a little differently.



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The safest way to fix this is to take the amp apart to get at the jack. If the jack is a solid black plastic shape, then you should replace the jack completely. Otherwise you should have access from the side of the jack to remove the piece of hte plug that broke off.


Posted on Feb 18, 2009

  • ABRsvcs Feb 18, 2009

    Usually there are screws on the top that hold the entire unit into the case. If you are comfortable trying that, remove the 2 or 4 screws from the top and the entire amp section should come out the back.




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