HP ep9012 Digital Projector - Manual (Page 26)

26 User’s Guide
Setting up
If you have a home theater system or external sound system, you can connect the
audio output from the internal DVD player to that system. You can connect a 5.1
surround sound system with five speakers and a subwoofer for full surround
sound (connection
1 in the following illustration). The digital audio output is
active only when using the internal DVD player. A digital audio connection
requires a digital coaxial cable, not an ordinary audio cable. Or you can connect a
stereo sound system to the projector (connection
2 in the following illustration).
✎
If you connect an external sound system, turn off the internal speakers.
Press the menu button, go to Sound > Internal speakers, and turn them
off.