Epson 7850p - Manual (Page 66)

66 Connecting to Computers, Cameras, and Other Equipment
Connecting External Speakers
To connect speakers to the projector, follow these steps:
1. Obtain the appropriate cable to connect your speakers.
Depending on your stereo system, you may be able to use a
commercially available audio cable with a stereo mini-jack
connector on one end, and pin jacks on the other end. For some
speaker systems, you may have to purchase a special cable or use
an adapter to connect to your speakers.
2. Connect the stereo mini-jack end of the audio cable to the Audio
Out port on the projector.
3. Connect the other end(s) of the cable to your speaker system. You
may need to use an adapter to make the connection.
The projector’s internal speaker system is disabled while sound is
output to the external speakers.