HP XP8010, XP8020 Reference Guide

Sound problems

Reference Guide
Sound problems
If no sound is coming out of the projector: 
Be sure you have an audio cable securely connected between the 
projector and the input device.
Be sure that the mute and volume settings are correct on the input 
device, such as a computer, DVD player, or camcorder.
Open the on-screen menu and select audio. Check the following 
Mute is turned off.
Volume is correct.
Internal speakers are turned on.
Audio input select shows the correct audio input for your 
video port.
If the projector speakers interfere with an external audio system:
Open the on-screen menu and select audio > Internal speakers. 
Then, disable the internal speakers.