Epson 54c - Manual (Page 51)

Fine-tuning the Projector 51
Adjusting the Sound
You can use the Audio menu to adjust the sound volume and select
the audio input port.
1. Press the Menu button. You see the main menu.
2. Select the Audio menu. You see the following:
3. To increase or decrease the sound, select Volume and use the
directional buttons to adjust it.
4. If you’re using a different audio input port than the default port
for your source, select Audio Input and then either Audio 1 or
Audio 2 . Then press Enter .
5. When you’re finished adjusting the audio settings, press Esc or
Menu .