What's the matter when there is no sound in the car?

[VonEvangeline]

Car without sound should be a line connection problem. If the car suddenly has no sound, first check whether the power supply of the CD player is normal. As long as there is electricity, the indicator light should be on, and the CD player can also be turned on and off normally. If there is no electricity, please check the power supply, that is, the fuse box and the line. The following is an introduction to the technical indicators of the audio: 1. Output power: The power marked by most of the current hosts is the music power, between 40W and 60W, and the power should not be too large. 2. Frequency response: The frequency range that the human ear can hear is between 20Hz and 20KHz, so this indicator should at least reach this value, and the wider the better. 3. Signal-to-noise ratio: This indicator refers to the ratio of the music signal to the noise. Generally, high-end car audio is above 90DB, and the larger the value, the better. 4. Harmonic distortion (THD): This indicator reflects the degree of sound reproduction. The smaller the value, the higher the degree of reproduction, and the better the sound effect.