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GK MB212 Switch Problem

Discussion in 'Amps [BG]' started by Alex1984, Dec 23, 2013.

  1. Alex1984

    Alex1984

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    The MB212 combo is displaying a weird problem with the switch. At first, the switch used to stay stuck in the on position, and would not turn off. So, I went along with that for about a month, and then the amp would switch on, and I'd hear a clicking sound, and it would switch off almost immediately.

    I'm currently using something to hold down that switch as a temporary solution, but I was wondering if this problem sounds like an electrical problem or more of a mechanical problem in the switch itself?

    Thanks guys!
  2. B-string

    B-string Supporting Member

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    Sounds like a mechanical problem with the switch itself. If it was an electronic problem in the rest of the amp, holding it down would make no difference.
  3. Alex1984

    Alex1984

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    Have you ever seen problems like this? Is it user-serviceable at all? Should I get it fixed or will holding the switch down be a viable solution?
  4. B-string

    B-string Supporting Member

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    I have seen it from several different makes. Probably not "hard" to replace with a little experience working on amps.
    The switch is already in failure so just holding it down may work for a short while or as long as you own it. No way to know when it won't work at all anymore.
  5. Alex1984

    Alex1984

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    It belongs to the church and I don't think they're too keen on fixing it.
  6. Joe Louvar

    Joe Louvar

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    Hmm. Why not be a brother and get it fixed for them?
  7. bluebird28

    bluebird28

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    What kind of switch is it, rocker switch, push button, or what? A picture is worth a 1000 words. Pull the amp out of the combo and take it to a TV repair person after you find a replacement switch, he can solder it in if you can not handle soldering. Are you in Vancouver BC or in Vancouver WA. If you are in the South Seattle area I can repair it for you. On my GK combo there is a rocker switch for power and an led light, the light did not work, I opened it up and the wire had come off of the LED. I soldered it back on and all is well.

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