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ARC enables a source connected to a display to route audio to an AVR or zone amp.
The S/PDIF port is used for two audio options, ARC or matrix source audio de-embedding. When
using one, the other is disabled. By default the matrix comes with ARC turned off on all ports, this
enables the S/PDIF to de-embed audio from the matrix source. To switch between ARC and matrix
source audio, ARC must be turned on or off. Enable or disable ARC through RS-232 (see page 18)
or front panel (see below).
1. Check to be sure the display supports ARC
2. Enable ARC on the HDMI output of the matrix through RS-232 (see page 18) or front panel
(see steps above)
3. Connect the HDMI Matrix output port to the ARC labeled input port on the display
NOTE:
The Matrix must be connected to the display’s HDMI ARC input
4. Connect the source to a non ARC HDMI input port on the display
5. Connect the S/PDIF port to an AVR or Zone Amp
NOTE:
The S/PDIF port used must be the same output number as the HDMI port connected
to the display
Audio Return Channel (ARC)
Steps
S/PDIF
HDMI
Bidirectional HDMI w/ARC signal
S/PDIF audio loop-out
AT-H2H-88M
AT-H2H-88M
DC 24V
ENTER
POWER
EDID
MEMORY
ALL
DEFAULT
CANCEL
FUNCTION
1
2
3
5
6
7
8
4
COAXIAL OUT
HDMI OUT
HDMI IN
RS-232
ETHERNET
IR IN
FIRMWARE
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Select output number
(1-4/8) to set ARC mode
--->
--->
input selection
through
--->
--->
--->
AT-H2H-XXM
Select Input Number
home screen
Select Function Option
Hold for
5 seconds
--------------------
Output: # Current: On
Select mode 1: On 2: Off
Output: # Current: On
Select mode 1: On 2: Off
Output: # Current: Off
Select mode 1: On 2: Off
--->
--->
--->
--->
