Philips 32PFL8605K - Page 317

5.2.2HDMI 3/4
You can skip the audio cable that is added normally (the
cable that connects the TV Digital audio Out to the device
Digital audio In). The return audio connection in this
HDMI-ARC connector is built-in. You do not need a special
HDMI cable.
You can leave the ARC channel switched on if you use
the additional digital audio cable. Still you can switch
off HDMI-ARC. To switch off the ARC in the HDMI 1
connection, press h > Setup > TV settings > EasyLink >
HDMI 1 ARC, select Off and press OK.
. . .