by admin | November 18th, 2009
Car audio problems can be irritating, when you are listening to music in your car. However, there are some car audio troubleshooting tips that can be referred to, for solving such problems.
Imagine getting a new stereo system installed in your car, and the stereo doesn’t work, it is certainly annoying.
Car audio problems are common nowadays, and there can be numerous reasons for them like loose wires, some problems in the audio amplifier, or the stereo. Such problems can cause the speakers to produce a popping or crackling sound. However, there are some troubleshooting steps that can be taken to diagnose and repair car audio problems. The first thing you would need to do is to find the source of the problem.
There can be many things at fault such as the cables, the audio amplifier, or the speakers. Make sure everything is properly connected between the speakers, stereo, and the amplifier. Disconnect the wire that connects the stereo and the amplifier, but do not unplug the cable which connects the amplifier and the speakers. If the problem still persists, the amplifier might be at fault. But if the problem is solved, simply disconnect the wire from the radio. If still there is a problem, then probably the connecting cable needs a replacement.
The stereo system won’t work, if there is a loose or missing connection. Check all the cables of the stereo, amplifier, and speakers separately, and ensure they are properly connected. Torn, pinched, or exposed cables can also be a reason for the system to be defunct.
If there is not enough power supplied to the speakers, they will not produce sound. Speakers that are installed by the car company work fine with the store-fitted audio system.
If different speakers are installed, they might not work due to compatibility issues, or may need more power to operate.
Check their power supply, by using a power meter. If they are receiving power but still are not working fine, the power provided may not be sufficient.
A blown fuse also can be a reason for the stereo to be nonfunctional. Refer to the car owner’s manual, and ensure if all fuses in the fuse box are intact.
If they are fine, you need to check if the car’s stereo system has its own fuses, which can be possible, in the case of, some stereo systems. If you find a faulty fuse, you need to replace it with a new one. There also are chances of the speaker being faulty. You may check a blown speaker by an electric meter. Ensure that there is no power supplied to the speaker; set the electric meter to show ‘ohms’.
Place one meter lead on every terminal point. If the speaker is fine, the meter will display 1.0 ohm, but if it is blown, the meter will read infinite ohms. A simple way to check a blown speaker is to place your hand on it and feel if there is any vibration and thump coming out at high volume. If the required thump is not felt, the speakers are blown.
If the speakers are not mounted in a correct way, they may cause problems by producing a buzzing sound, or can even vibrate. Such problems can simply be solved by screwing them a bit tighter. You can also place a piece of rubber between the speaker’s frame and the car’s interior.
If any of these above tips don’t seem to work, you probably need to take the help of a car stereo technician.
By Stephen Rampur
Published: 5/29/2009
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