These 5 car amplifier repair tips may help you get your audio electronic sound system working good as new. Car amplifiers help you feel the music as well as hear it. When the amp's not working, a little troubleshooting can go a long way. Repair costs for amplifiers can be a cost you just might want to avoid. Repair your amp yourself and save money.
- Check to see if the car amplifier is still under warranty. If the amplifier is under warranty, take it in for repairs. If you try to repair the amplifier but break something, the warranty is sometimes made null and void. Be safe and check this first.
- Use a 10-amp fuse when working on the amplifier. To protect the amp during repairs and powering back up, be sure to use a 10-amp fuse in the B+ power line. This low voltage will help protect the amp, but it's only used for testing or troubleshooting. When you have verified it is working, you can use a stronger fuse.
- Use an AC to DC converter instead of reinstalling the amplifier in the car to test it. To repair the amp, it's easier to do it all outside the car. If you use an AC to DC converter that's regulated by 12 volt power supply, you won't have to reinstall the amp in your vehicle. The supply needs to give 35 continuous amps for a correct reading.
Disconnect the amplifier from the power source. For your safety, be sure to disconnect the amp before repairing or troubleshooting with the multimeter set to diode-check or ohms. The voltage measurements will be checked when the amplifier is powered. Ensure the meter probes don't slip and short between the component's terminals when you measure voltage.
- Clamp the power semiconductors to the heatsink. A transistor can overheat quickly and fail. By clamping the power semiconductors tightly to the heatsink, it provides some protection.
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