How to adjust the sound of the robot car

How to adjust the sound of the robot car:

1, the sound card driver may be incorrect, reinstall.

2, the volume is muted, open the small speaker to remove the mute check.

3, the volume is all off, open the small speaker to adjust the volume up.

4, audio output and audio input are mixed up, output is green, input is pink.

5, the front audio jumper is not correct, open the case in accordance with the motherboard instructions to adjust.

6, the sound card hardware problems, replace the one.

7, the sound option off, in the control panel to open the sound option to open.

8, the audio cable plug or socket has rust or oxides, resulting in increased resistance.

9, the volume control potentiometer is worn out, replace it.

10, the amplifier's feedback resistance increases, resulting in reduced gain, the sound will be small.