3 Dynamic Microphone Repair Tips

A dynamic microphone is best to use when performing in live sets. Because the conditions of a live performance set is a lot rougher than in a controlled studio, you will need a microphone design that can withstand the external elements and perform well while being handled in different ways by the artist or performer. Dynamic microphones perform well even while subjected to spontaneous movement, which makes them a better option for live performances than more sensitive microphones such as ribbon or condenser types. Because dynamic microphones are used live, they are susceptible to some forms of damage that may need repair. The following are some tips on how you can repair your dynamic microphone.

1. Problems Encountered with Internal Parts

A dynamic microphone consists of a cartridge which houses the diaphragm and electromagnet. When sound is produced by the performer, it makes the diaphragm vibrate which causes the electromagnet to convert these sound waves to electrical signals. These electrical signals then go to a transformer and into the cable connector of the microphone. When used over time, the diaphragm may encounter imbalances with its placement. This stops the free movement inside the microphone. The microphone cable connector can experience damage or burning as well when unintended voltage passes through it. This can also affect the cartridge and the microphone’s transformer. Poor wiring is also a cause of poor connection.

2. Initial Troubleshooting

Before making any major repairs, perform some simpler troubleshooting steps at the start to fix the problem. If your dynamic microphone refuses to operate, exchange it with a working unit. Test the new microphone. If it still does not work, chances are the problem lies in the connector cable of the microphone. Change the cable of your dynamic microphone and try it out again. Check your amplifier. Some amplifiers come with power switches. Check that it is switched on before you try the microphone again.

3. Internal Troubleshooting

If none of the initial troubleshooting work, there may be problems with the internal parts of your dynamic microphone system. Unplug the microphone from the connector cable before performing any repairs. Use a tester or a voltage meter to test if the wire performs continuously from one end to the other. Disassemble the dynamic microphone. Start with the microphone connector cable. You will have to remove some of the screws that are keeping the lower exterior housing and the connector cable together. Free the connector cable for the microphone unit. Examine the joints and the wire insulation for signs of damage or burning due to voltage. If you see this, you will need to replace this part. The same goes for the cartridge of the microphone. Make sure you inspect it for any signs of fraying and replace if necessary.  To install a new cartridge, simply solder the new part in place inside the dynamic microphone. You can purchase this at any repair store or where you purchased your dynamic microphone system.