Most car amplifier circuitry is designed with fault protection. This fault protection allows fuses to blow so that the more expensive circuitry will not be damaged. There are two types of fuses used in most car amplifiers---buss fuses, which look like a glass tube with metal on each end, and plug fuses, the more common type, which are plastic with metal prongs that plug into the circuit.
Instructions
1. Reach below the steering wheel and release your hood latch. Take your wrench and loosen the positive (red) terminal on your battery. Remove the wire and push it to the side. This eliminates current from running through the car circuitry and causing damage.
2. Trace the red wire from your amp to the fuse block in your car. Remove the fuse at the fuse block; if this is a buss or glass fuse it can be removed by grasping with your forefinger and thumb and pulling. If this is a plastic fuse, then grasp with the fuse puller and pull out. Whichever type of fuse it is, hold it up to the light to see if the metal wire inside is broken. If it is broken, then replace with the same type of fuse, and reconnect the battery---you're done. If not, move on to the next step.
3. Replace the fuse from the previous step and examine the red amp wire. There may be an in-line fuse, which is a plastic holder for a fuse. Open the plastic holder and remove the fuse. Examine the fuse as before, checking to see if a wire inside is broken. If the wire is broken, replace the fuse, and reattach the battery cable---you are done. If not, proceed to the next step.
4. Check the exterior of your amp for any plastic plug-in fuses that can be removed and checked. If there are fuses, then remove and check the inside wire to see if it is broken before moving on to the next step.
5. Locate the screws on the amplifier that hold the casing together and remove. Carefully remove the circuit board from the amp, examining the circuit board for fuses that can be replaced. If fuses are located on the circuit board, then carefully remove and check to see if the inside wire is broken. If so, replace the fuses, reassemble the amp casing, and reattach the battery. You are done.
Tags: circuit board, next step, wire broken, broken replace, check inside, check inside wire