1. Turn on the audio equipment. Make sure the audio equipment is turned on and connected to the power supply. Check the power switch of the audio equipment and turn it on.

2. To adjust the volume, you need to adjust the volume of the speaker. Most audio equipment has a volume knob or button that can be rotated or pressed to adjust the volume. Initially, adjust the volume to a lower setting. level, gradually increasing the volume until you reach the appropriate volume.

3. Adjust the tone and balance. If you want to adjust the tone and balance of the audio, you can find the corresponding control buttons or knobs on the audio equipment. There will be controls for Bass, Mid and Treble knobs can be adjusted to change the tone and balance of the sound.

4. Test the sound effect. After adjusting the volume, tone and balance, you can play some music or sounds to test the sound effect to ensure that the audio equipment can play normally and that the sound quality and volume meet the requirements.