Question about Shure SM58 Professional Microphone

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I have a shure sm58 wireless with a bad off/on switch- it is stuck in "on", fortunately. I can't get the case open to slide the guts out. I have removed the ring clip, but it doesn't drop out. What should I do?

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  • Terry Dearmore Oct 14, 2010

    Where should I apply the pressure? I am applying pressure to the battery contacts but it won't budge. I tried pushing in the battery test button and it is out of the way, but how do I get past the switch itself?

  • Terry Dearmore Oct 14, 2010

    I am wanting to replace the on/off switch on a Shure SM58 wireless microphone. I have been able to get the ring clip removed, but am hesitant to apply too much pressure to the battery contacts to get the guts to fall out. How does this thing come apart to expose the on/off switch for removal?

  • Terry Dearmore Oct 17, 2010

    I am taking the advice and having the work done by the factory. Thanks for the help!



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This web blog explains the disassembly process of the sm58. Go a few paragraphs down and you'll get to the explanation:
You have to do some desoldering of wires to get the guts out, so take your time, and take notes or pictures as you go. This sounds like a tricky process, so take your time and be careful not to cause more damage. Most people don't seem to recommend taking one apart unless you really have to.
Good luck, and hope this gets you fixed up.

Posted on Oct 14, 2010

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You will need to exact little more pressure and be consistent with it, perhaps, i will advice you replace the on/off switch for effective use.

Take care.

Posted on Oct 13, 2010


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First, unscrew the cartridge from the top. The round circuit board on top of the transmitter has a cutout on the switch side. Slide a screwdriver through that cutout and pop out the bezel the surrounds the switch. Remove the spring clip that is around the round circuit board and slide out the circuit board.

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Shure SM58 is not a wireless microphone, so clarify me the exact model for your wireless device in order to help you.

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Common problem... the mic has been dropped and the guys of it have shifted so that the switch can't move far enough to turn on or off as the case may be. Gently pry out the little plastic piece around the switch and see if it works properly without the piece in place. If it does, then you have to remove the guts from the case or somehow slide them the correct direction so switch can move faar enough. Often a small plastic index has been broken in the fall so verify the guts will stay in the right place for the switch operation before reassembly.

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The actuator moves the actual switch. So, if you are having problems with the actual switch, then you will need to replace it. Replacement parts can be ordered from Shure Parts at 800-516-2525.

It might cost less and be easier to simply send the microphone to Shure for repairs.

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