Convert new GK MB200 110V to 240V

Discussion in 'Amps and Cabs [BG]' started by Groove Doctor, Sep 22, 2016.

  1. Just need some clarification....

    I've been following the thread for converting an MB500, bought a new MB200 (Sam Ash heavily discounted)... BUT.... the MB200 is different inside.

    Can somebody clarify what I'll need to do to switch a 110V model to use in Australia 220-240V?

    Or, is it rated for both voltages? Just labelled for 110V?? (hence, safe to use at 240V as is??)

    Gut shot

    Clip (vertical) to the left of 230v/115v lettering.
    Last edited: Sep 22, 2016
  2. Black circle (fuse?) T2.5A 250V

    Power switch 8A/128AH (?)

  3. What's this screw?? Fine adjuster?
    Positioned in a line between bass and Lo mid knobs.
  4. Can you get a better angle on the clip 110/240? Yours appears different from mine, since sold.

    Iirc there was a black plastic covered jumping wire clip which I moved over to the opposite position retaining the central pin. It was holding on tight. I fashioned a hook from a paper clip by work hardening and snipping it just so.
    Groove Doctor likes this.
  5. Whatever you do, don't plug it into 240v without first sorting the internal voltage jumper!

    The fuse doesn't need changing. From memory I don't think it is swappable anyway.
    Groove Doctor likes this.
  6. I'm away until Sunday.

    Bottom left corner (next to power input). I'll send it thru ASAP.
  7. I don't know what you are looking at but first pic of post #2, says 115 250 on the board. The black plastic doofer pulls off and you shift it onto the next pin. Job done.

    I made the hook because I feared crushing the doofer with pliers. Fingers couldn't get a good enough grip on it. It took quite a pull with the hook.
    Last edited: Sep 23, 2016
    Groove Doctor likes this.
  8. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    there should be three pins under the jumper, after you pull it off
    right now it's on the bottom two, just shift it to the top two
    (what you're calling a clip is normally called a jumper)
    Groove Doctor likes this.
  9. Here's a close up....


    So there's just the one jumper to change and that's it?? Ready for 230V ??
  10. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    Groove Doctor likes this.
  11. ThisBass


    Aug 29, 2012
    Didn't read the engineering datasheet for the ICEpower50ASX2 but I'm pretty sure the B&O documents refere to this point.
  12. That's how it worked on mine.

    The light on the front can give you a fright taking it's sweet time going from red to blue on powering up.
  13. Dead easy. I'll let you guys know how it goes.

    The Fuse.... should that be changed too? Or is it fine to stay as is = 250V 2.5A
  14. Fuse fine.
    Groove Doctor likes this.
  15. Jumper in new position...
  16. No ICE cable?
  17. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

    Jun 22, 2021

Share This Page