Sony HT-ST7 Operating Instructions Manual page 7

When connecting a TV and other devices
(ARC)
OPTICAL
OUT
TV
OUT
Blu-ray
Use HDMI cables (not supplied). If your TV supports the ARC function, you do not need to connect the
digital optical cable .
Refer to the Reference Guide for notes on HDMI connections.
To output multi-channel digital audio, check the digital audio output setting on the device connected to the
system.
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