What causes damage to speaker coils and how can it be prevented?
How to Repair Speaker Coil
Speaker coils are essential components that provide the sound output in speakers. However, these coils are prone to damage due to various reasons, including overuse, over-heating, or physical damage. When your speaker stops producing sound or has poor quality sound, it’s usually a result of a damaged coil. Here’s how to repair a speaker coil.
Tools and Materials Needed
Before you begin the repair process, ensure you have the following tools:
- Soldering iron
- Soldering wire
- Test meter
- Replacement coil
- Pen knife/scissors
Step-by-Step Guide to Repair a Speaker Coil
- Power off the speaker and unplug it from the source device.
- Open the speaker to access the coil. This may require removal of the speaker grille and unscrewing the speaker from the housing.
- Use a scissor or a pen knife to carefully remove the damaged coil by cutting through the adhesive that fastens it to the cone. Be sure not to damage the cone or any other component of the speaker as you do this.
- Measure the resistance across the terminals of the speaker with a test meter to confirm that the coil is the problem.
- Get a replacement coil that matches the specifications of the damaged one. The specifications should be indicated on the damaged coil or in the manual of the speaker.
- Insert the replacement coil into the voice coil’s lead wires and ensure it lines up properly with the cone of the speaker.
- Apply a small amount of adhesive to the coil to secure it in place, ensuring that it is not directly touching the magnet. Give the adhesive some time to dry, observing manufacturer’s instructions.
- Solder the replacement coil to the speaker’s terminals. Ensure that the polarity is correct.
- Reassemble the speaker and test it.
Conclusion
Repairing a speaker coil is a simple process that can be done by following the steps outlined above. Ensure you have all the necessary tools and materials before you begin the process. If you’re not comfortable doing it yourself, seek the services of a professional technician. Remember, proper maintenance of your speaker will ensure it serves you for a long time.