Taking apart a Shure 58 microphone for repair or parts replacement is fairly straightforward. The 58, also known as the SM58, is a professional-quality vocal mic known for its rugged construction. Since the microphone contains only five parts including the housing and grill, its simplicity of design allows for repairs by people with little more than basic soldering skills. The only part of the SM58 you cannot remove without difficulty is the transformer in the centre housing.
- Skill level:
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Things you need
- Soldering iron (15 to 25 watts)
- Small flathead screwdriver
- Needle-nose pliers
Remove the integrated grill and windscreen by unscrewing the grill counter with your hand. Removal of the grill will give you access to the microphone cartridge.
Remove the microphone cartridge by gently lifting it out of the main housing. Apply a heated soldering iron to the wires (two or three, depending on the model year) on the bottom of the cartridge to melt the solder and remove the cartridge.
Insert a small flathead screwdriver into the setscrew hole on the bottom side of the housing, and turn the screw counterclockwise to free the three-pin connector.
Grasp one of the pins on the connector, and pull gently outward.
Apply the heated soldering iron to the three wires holding the connector in place to remove it.
Tips and warnings
- You can purchase replacement grills, cartridges and connectors at most local or online Shure retailers, or from the manufacturer.
- Handle the cartridge gently, as it is the most delicate part of the microphone.
- If you are taking the microphone apart to replace parts, make note of the colour and position of the wires for reference.
- If your Shure SM58 includes an on/off switch, unscrew the two screws on each side of the switch. It will come free of the housing when you lift out the cartridge and remove the wires using the soldering iron.
- Removal of the internal transformer requires heated air to melt the glue---a specialised operation that could cause damage to the transformer or personal injury if performed improperly.
- Use caution when handling soldering irons, as they can cause serious burns.
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