page 09
No. Name Function Description
4. AUTO LED
The blue AUTO LED will be on 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 again
will turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO func-
tion 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 be on.
▪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 be on. 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 fucntion, and the corresponding blue LED will
be on. For example, if source is 4K but TV only supports
1080P, at this time the input resolution with 4K will be
downscaled to 1080P to TV output.
7. ARC button Turn on/off ARC function. The blue ARC LED will be on
when you turn on the ARC function.
Operation Controls
and Functions
