Epson 73c - Manual (Page 83)

Appendix A: Connecting to Additional Equipment 77
Connecting the Computer Cable
1. Disconnect the monitor cable from the video port on the back of
the computer.
2. If you want to view the display on your computer monitor as well
as the projector screen, connect the monitor cable to the
projector’s
Monitor Out port, as shown.
3. Connect one end of the computer cable to the projector’s
Computer/Component Video port.
4. Connect the other end of the computer cable to the computer’s
video port.
5. Tighten the screws on the connectors.