LG OLED55E7 Series Quick Start Manual page 6

LAN
AUDIO OUT/
H/P OUT
OPTICAL DIGITAL
AUDIO OUT
Image shown may vary depending on
model.
All connection cables & devices shown
in the picture are not included along
with the TV set.
Some USB Hubs may not work. If a
USB device connected using a USB Hub
is not detected, connect it to the USB
port on the TV directly.
Connect the external power source if
your USB is needed.
Do not look into to the it is optical
output port, Looking at the laser beam
may damage your vision.
Audio with ACP (Audio Copy
Protection) function may block digital
audio output.
ARC (Audio Return Channel)
An external audio device that
supports SIMPLINK and ARC must
be connected using HDMI IN/
ARC port.
When connected with a high-speed
HDMI cable, the external audio
device that supports ARC outputs
SPDIF audio without additional
audio cable and supports the
SIMPLINK function.