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Due to the usage environment, it is generally difficult for car audio systems to achieve the same level of functionality as home audio systems. In the process of use, it is also simpler to present some problems than home audio systems. Below are some common car audio problems and troubleshooting methods.

1. The volume of the left and right channels of the audio system is not the same. Firstly, check whether the balance button of the host is in the middle position, and then check whether the left and right level control buttons of the front input and output are the same, as well as whether the sensitivity of the amplifier input and the left and right channel settings are the same. If it still cannot be cleaned, the host signal line can be swapped left and right, and the side with a smaller speaker position will not become larger. If so, it indicates that there is a problem with the host, otherwise it is a problem in the back stage.

   
   

2. A certain high pitch is silent. First, check if the wiring of the splitter is connected, and then use an electricity meter to measure whether there is any sound from the splitter end. It may be a mistake to connect the speaker wire input end to the bass output end.

3. The noise is loud. Check if the negative terminal of the RCA signal terminal is connected. If the negative terminal of the RCA signal output terminal on the host end is now open, use an electricity meter to measure whether the negative terminal is connected to the host casing.

4. The volume varies from high to low. First, check if the contact between the power ground wire and the car shell is loose, then check if the input and output RCA of the front and rear stages are normal, and finally check if the sensitivity knob is normal.

Article source: LED Bluetooth audio system http://www.zbchip.com/