Sony HT-X9000F Manuel D'instructions page 10

Rear
 HDMI IN jack
For specifications and notes on
connections, see "Supported
HDMI Video Formats" (page 61).
 HDMI OUT (TV (ARC)) jack
Connect a TV that has an HDMI
input jack with an HDMI cable.
The system is compatible with
Audio Return Channel (ARC). ARC
is the function that sends TV
sound to an AV device such as the
system from the TV's HDMI jack.
For specifications and notes on
connections, see "Supported
HDMI Video Formats" (page 61).
10
US

(USB) port (page 30)
 ANALOG IN jack
 TV IN (OPT) jack
 IR repeater (page 26)
Transmits the remote signal of
the TV remote control to the TV.