Need Detailed Help on Fixing a Broken Sennheiser md421u5. Please Help!

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brad teeter Participant Join Date: Jul 2009 Posts: 1	Need Detailed Help on Fixing a Broken Sennheiser md421u5. Please Help! 07/12/2009 11:45 AM
	i have no experience with repairing broken microphones. currently need detailed help fixing a dead md421u5, shure beta58a and sm57. i took apart the 421 and i seems like the copper coils in the capsule are too loosely wound. is there a specific way i should wind them back? i need a picture or video to show me, if there's one even out there. and the casing won't stay closed when reassembled. also the bass roll off switches aren't clicking into place, rather moving like a loose volume knob. as you can see, i'm having a very hard time with this. anyone wanna keep me from offing myself? love to all who can help brad
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	Pathfinder Tags: 421 fixing broken microphones sm57 beta58a

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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#1 Re: need detailed help on fixing a broken sennheiser md421u5. please help!!! 07/12/2009 12:22 PM
	Did you even try Google? Dismantling a Sennheiser MD421-U-5 Seems there's lots of stuff there. oops!
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Steve S. Guru Join Date: Aug 2007 Posts: 1790 Good Answers: 87	#2 Re: need detailed help on fixing a broken sennheiser md421u5. please help!!! 07/12/2009 7:27 PM
	Sounds like it is time to buy some new ones.... You probably made it worse when you took it apart....
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GlenL Participant Join Date: Jul 2009 Posts: 1	#3 Re: need detailed help on fixing a broken sennheiser md421u5. please help!!! 07/13/2009 4:42 AM
	I've fixed many a mic but draw the line at bothering about rewinding the coils. In the main the switches usually fail first and sometimes best to just remove the switch and connect the wiring direct. It's a common problem not getting them fitting back together properly too - that's why you'll see lots of old Sure mics taped up! Buy a new one - they're not that expensive and you might get a second hand one very cheap.
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ronseto Guru Join Date: Sep 2008 Location: Vancleave, Ms about 30 miles inland from Biloxi and the coast Posts: 3197 Good Answers: 106	#4 Re: Need Detailed Help on Fixing a Broken Sennheiser md421u5. Please Help! 07/13/2009 9:44 AM
	It doesn't sound lke a do-it-yourself project. Contact the factory to see about repair. __________________ Mr.Ron from South Ms.
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Chankley Power-User Join Date: Sep 2007 Location: South coast of England Posts: 411 Good Answers: 36	#5 Re: Need Detailed Help on Fixing a Broken Sennheiser MD421u5. Please Help! 07/14/2009 4:33 AM
	Whilst I have re-soldered broken lead-out wires this is very tricky. I doubt you can rewind or refix the coil. The clearance in the magnet gap is so tight any alteration or re gluing will probably lead to the coil rubbing causing severe distortion. Fitting a new capsule would be the only option. Shure and Sennheiser are good for supplying spares and the MD421 and Beta 58 are well worth fixing given their price new. The SM57 is more doubtful unless the body and grill are in pristine condition as they are not so expensive and easily available secondhand. Incidentally if the Beta58 coil is coming apart it would be worth checking it is a genuine Shure mic, there are a lot of counterfeits around which are much less reliable and the Shure spares may not even fit a counterfeit. The Shure website has a section on recognising counterfeits.
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Anonymous Poster	#6 Re: Need Detailed Help on Fixing a Broken Sennheiser md421u5. Please Help! 07/19/2009 1:18 AM
	I'am one who love Sennheiser Wireless Headphones but i don't have experince with fixing, too. I've bought a low-price headphone(Sennheiser RS120) on amazon.com. It make me easy to play aorund while i'm listening to my favorite music. If you are interested in buying some headphones, I reccomend Sennheiser Wireless Headphones RS120.
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sanshoku Participant Join Date: Jul 2009 Posts: 1	#7 Re: Need Detailed Help on Fixing a Broken Sennheiser md421u5. Please Help! 07/19/2009 1:29 AM
	oh i forgot to login!! here low price sennherser link Sennheiser RS120 926 MHz Wireless RF Headphones with Charging Cradle I hope you will enjoy your new headphones. good luck!
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Anonymous Poster (1); Chankley (1); GlenL (1); lyn (1); ronseto (1); sanshoku (1); Steve S. (1)

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