Acoustic refers to sounds other than human language and music, including the sound of the natural environment, the sound of animals, the sound of machine tools, and various sounds emitted by human actions. The sound probably includes a set of amplifiers, peripheral devices (including compressors, effects, equalizers, VCDs, DVDs, etc.), speakers (speakers, speakers), mixers, microphones, display devices, and so on. Among them, the speaker is a sound output device, a speaker, a subwoofer, and the like. One speaker includes three types of speakers: high, low, and medium, three but not necessarily three. The history of technology can be divided into four stages: electron tube, transistor, integrated circuit, and FET. So how is the audio board wired?
Sound circuit schematic 
Multimedia audio circuit diagram 
The 2-pin socket is the left and right output speaker LOUT ROUT. Enter the power supply pin and refer to the illustration to find it.
Audio circuit board wiring diagram1, first of all to go to the electronic accessories city or network to buy their own audio matching circuit board.
2, recognize the power amplifier board power, switches and so on.
3. Connect the power board and the speaker with wires.
4. Connect the circuit of the audio and power amplifier board.
5, connect the computer audio cable test audio.
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