Sony HT-Z9F Manuel D'instructions page 11

Rear
 LAN(100) port
 HDMI IN 2 jack
For specifications and notes on
connections, see "Supported
HDMI Video Formats" (page 83).
 HDMI IN 1 jack
For specifications and notes on
connections, see "Supported
HDMI Video Formats" (page 83).
 HDMI OUT (TV eARC/ARC) jack
Connect a TV that has an HDMI
input jack with an HDMI cable.
The system is compatible with
eARC and ARC. ARC is the
function that sends TV sound to
an AV device such as the system
from the TV's HDMI jack. eARC is
an extension of ARC and enables
transmission of the object audio
and multi-channel LPCM content
that cannot be transmitted with
ARC. For details of eARC, see
"Connecting a TV Compatible
with eARC" (page 25). For
supported audio formats, see
"Supported Input Audio Formats"
(page 82). For specifications and
notes on connections, see
"Supported HDMI Video Formats"
(page 83).

(USB) port (page 38)
 ANALOG IN jack
 TV IN (OPT) jack
 IR repeater (page 34)
Transmits the remote signal of
the TV remote control to the TV.
11
US