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GK MB212 Switch Problem

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


  1. Alex1984

    Alex1984

    Joined:
    Jan 16, 2010
    Location:
    Vancouver
    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 Gold Supporting Member

    Joined:
    Nov 21, 2008
    Location:
    Lake Havasu City, Az USA
    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

    Joined:
    Jan 16, 2010
    Location:
    Vancouver
    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 Gold Supporting Member

    Joined:
    Nov 21, 2008
    Location:
    Lake Havasu City, Az USA
    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.
     
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  6. Alex1984

    Alex1984

    Joined:
    Jan 16, 2010
    Location:
    Vancouver
    It belongs to the church and I don't think they're too keen on fixing it.
     
  7. Joe Louvar

    Joe Louvar

    Joined:
    Jun 6, 2011
    Location:
    Santa Rosa, CA USA
    Hmm. Why not be a brother and get it fixed for them?
     
  8. bluebird28

    bluebird28

    Joined:
    Feb 25, 2012
    Location:
    Tacoma. WA
    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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