Epson BrightLink 1480Fi User Manual page 271

Setting
A/V Output
Inverse Audio
Audio Output
HDMI Audio Output
Monitor Out Port
USB Display
Options
While Projecting
Always On
On
Off
Auto
Audio1
Audio2
Audio3
HDMI1
HDMI2
HDMI3
Monitor Out
Computer2
On
Off
271
Description
Determines when the projector outputs
audio and images to external devices; set
to Always On to output audio and
images when the projector is in standby
mode
Set to On to invert the audio's left and
right channels to match the projector's
installation position
Sets the audio input port when projecting
from input sources other than HDMI,
HDBaseT (BrightLink 1485Fi), LAN, and
Screen Mirroring; select Audio3 when
inputting audio from the Audio port
Sets the audio input port when projecting
from one of the HDMI ports
Selects the function of the
Computer2/Monitor Out port
Monitor Out: select this option when
outputting an image signal to an external
monitor
Computer2: select this option when
inputting an image signal from a
computer
Set to On to enable the USB Display
feature for a computer connected to the
USB-B1 port