Epson EMP-7500 Owner's Manual page 29

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c. If necessary, connect the monitor cable of the
computer monitor to the projector's Computer out.
d. Tighten the screws on all connectors.
2. Connect the audio cable if needed.
a. Connect one end of the audio cable to the Audio In
jack on the projector.
b. Connect the other end of the audio cable to the audio
out port on a sound card in the computer.
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Audio cable
Connecting to a Computer 9