Eiki LC-120 Owner's Instruction Manual page 7

BACK OF THE PROJECTOR
S-VIDEO INPUT JACK
Used to connect a S-VHS video source to the projector.
VIDEO INPUT JACK
Used to connect a video source to the projector.
AUDIO INPUT JACKS.
Used to connect an audio source to the projector.
AUDIO MONITOR OUTPUT JACKS
Permits audio connection to a monitor.
MICROPHONE VOLUME
Used to adjust the microphone volume,
MICROPHONE JACK
Used to connect the microphone,
SP OUT SWITCH
Used to select speaker output "INT." or "EXT." (built-in speaker or external speaker).
EXTERNAL SPEAKER TERMINAL
Used to connect the external speaker.
PROJECTOR IR SENSOR
Used to receive the PROJECTOR control signal from remote control unit
MAINS SWITCH
Used to tum the projector and built-in video cassette player main power on or off.