Our church has a DPA 4088-f mic that needs repair at the back side of the headband. the wire sheathing has started to pull away, (exposing bare wire) at the rubber flexible spot where the wire meets the metal band, and is picking up sound at the back of the headset. I've tried taping it up, but it's not helping at all. These mics are very expensive, and was wondering if its worth trying to get fixed, and if so where I would take it or send it, and how long it would take. Or is even worth trying to fix it?
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A wireless mic uses batteries for power. Check the battery terminals and clean them (pencil eraser), also make sure that a new (check voltage with volt meter) battery is installed. Finger grease is one culprit which cannot be seen on the terminals. Batteries also leak and leave traces of "stuff" on the terminals. Any drop in voltage (because of dirt) will make that device stop working.
If it uses a 9 volt battery, check both wires going from the 9 volt connector - one might be broke (not connected). Checking if either of the wires is "loose" (broke) is easy.
Go to this website:
at the bottom of the page there should be a section called "Replacement Parts" that has anything you could possibly look for. Shure is a small private company and has unbelievable customer service, so don't be afraid to call.
You might want to check the other end as well. Take a ohm meter and check the wires to make sure their is a reading on both.The wire you speak of is called shielded cable and there should be no reading between the sheilding and the center conductor when they are seperated from the capsule. If there is a reading you have a short.To clarify, the outer sheild should read at or near zero when you check @ each end as should the center conductor ( the white ) wire.There should be no reading between the two (the sheild and the white) when they are unhooded @ each end. Also when the capsule is unhooded you should get a reading between the two terminals, if not the capsule is open and needs replacement.
check the battery, if dead replace new. check the switch might be a cold solder or loose wire and finally check the condenser mic by placing a multitester to the two connectors of the mic with one wire from the mic desoldered. if there's a continuity, then its good. if there's no continuity the mic condenser is busted. go to radioshack and find replacement mic condenser.
You need to replaced the "voice coil". that thing that youve been desoldering and soldering is the voice coil. It has two wires- white and black. it is already grounded and need to be replace (the fact that it humms..). my company distribute wow magic sing here in Philippines and we can easily repair that.
Cord rolling might generally cause damage to the internal wiring.the only possible repair option is change the wire inside.A suggestion is to try not to wrap the cord tightly with the microphone.fold it separately and use a band to hold it.
Make sure the microphone and the receiver are still broadcasting/receiving on the same channel.
Check that all of the appropriate connections are right from the receiver to the mixing board are connected as well.
I hope this helps!
God Bless you!
Has it always done this or recently started?
Try to determine if the popping is coming from the words spoken into it, or if you get popping from simply moving the mic and cable around. if you get popping from simple movement, there is a chance that the mic needs to be replaced. We use these in our church, and over the last 6 years I've had to replace about 6 of them...sometimes they go bad in the wire, sometimes inside of the mic. The wires are so thin, excessive use wears them out sometimes. Depending on the model countryman that you are using...I've seen them become disconnected where the mic. meets the wire...some can disconnect here beneath a rubber coupling...if you have this model, make sure that it is properly seated.
If there are no shorts in the mic or cable, and you only hear the popping while speaking into it, you may need to filter out the low end on this channel only (everything below about 120hz - 180hz)...and try using a wind shield to help control this.
Hard to troubleshoot without being there, but I hope this gives you a few good ideas.