Epson 503c - Manual (Page 85)

Appendix A: Connecting to Additional Equipment 79
Connecting the Audio Cable
If your presentation includes sound and you want to use the
projector’s built-in speakers, you can use a computer audio cable. The
required cable (3.5-mm stereo miniplug cable) is available from
computer or electronics dealers.
1. Connect one end of the audio cable to the Audio In port on the
projector.
2. Connect the other end of the audio cable to the speaker or
audio-out jack on the Macintosh.
Connecting to a High-End Workstation
Your PowerLite projector is capable of remapping input resolutions
up to 1600
× 1200 pixels (1280 × 1024 pixels on the PowerLite 503c).
Since 1280 × 1024 pixels is the default resolution for most leading
workstations, your projector is ideal for displaying workstation video
output.
There is no standard for workstation video output. Workstations that
follow the SXGA standard and use the HD15 (standard VGA)
connector won’t need an adapter cable or any special connection
device. However, your system may vary; contact your computer dealer
if you need help connecting your workstation.