5
seconds againwill turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO
function is turned on, if an or a few HDMI IN ports are
connected source device, OUT A port will output the
signal from the last connected input source.
4
OUT B button
and LED
Press the OUT B button to select an input source to OUT
B output, the corresponding blue LED will illuminate.
AUTO LED
The blue AUTO LED will illuminate and the AUTO
function will be turned on when you press the OUT B
button up to 3 seconds, press the OUT B button up to 3
seconds againwill turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO
function is turned on, if an or a few HDMI IN ports are
connected source device, OUT B port will output the
signal from the last connected input source.
5
AUDIO
button
▪ Press AUDIO button to select extract the input source
audio from OUT A port or OUT B port to optical and
analog L/R output, the corresponding blue LED will
illuminate.
▪ If ARC function is turned on, press Audio button to
select return the audio signal from OUT A or OUT B
display device to optical output, the corresponding blue
LED will illuminate. At this time, the analog L/R port is
mute.
6
4k→1080P
button
Press the button to select OUT A or OUT B 4k→1080P
downscale function, the corresponding blue LED will
illuminate. For example, if source is 4K but TV only
supports 1080P, at this time the input resolution with 4K
will downscale to 1080P to TV output.
7
ARC button
Turn on / off ARC function. The ARC LED will
illuminate
when you turn on the ARC function.
5.2 Rear Panel
