Sony HT-RT4 Operating Instructions Manual page 25

 If the sound was output from the
speakers of the TV the previous
time, the system does not turn on
even when the TV is turned on.
Turn on the system and switch the
input of the system to "TV"
(page 12).
The system turns off when the TV is
turned off.
 Check the setting of "HDMI>" –
"TVSTB" (page 19). When "TVSTB" is
set to "ON", the system turns off
automatically when you turn off the
TV regardless of the input.
The system does not turn off even
when the TV is turned off.
 Check the setting of "HDMI>" –
"TVSTB" (page 19). To turn off the
system automatically regardless of
the input when you turn off the TV,
set "TVSTB" to "ON". The TV must
support the Control for HDMI
function (page 21). For details, refer
to the operating instructions of your
TV.
Sound
No TV sound is output from the system.
 Check the type and connection of
the HDMI cable, optical digital
cable, or analog audio cable that is
connected to the system and the TV
(refer to the supplied Startup
Guide).
 When the system is connected with
a TV compatible with Audio Return
Channel, make sure the system is
connected to an HDMI (ARC) jack of
a TV (refer to the supplied Startup
Guide). If sound is still not output or
if sound is interrupted, connect the
optical digital cable (supplied only
for certain areas) and set "AUD >" –
"TV AU" to "OPT" (page 19).
 If your TV is not compatible with
Audio Return Channel, TV sound will
not be output from the system even
if the system is connected to the
TV's HDMI input jack. To output TV
sound from the system, connect the
optical digital cable (supplied only
for certain areas) (refer to the
supplied Startup Guide).
 If sound is not output from the
system even if the system and TV
are connected by optical digital
cable or if the TV does not have an
optical digital sound output jack,
connect an analog audio cable (not
supplied) and switch input of the
system to "ANALOG" (page 12).
 Switch input of the system to "TV"
(page 12).
 Increase the volume on the system
or cancel muting.
 Depending on the order in which
you connect the TV and the system,
the system may be muted and
"MUTING" is displayed in the front
panel display of the system. If this
happens, turn on the TV first, then
the system.
 Set the speakers setting of the TV
(BRAVIA) to Audio System. Refer to
the operating instructions of your
TV on how to set the TV.
 Depending on the TV and the
playback sources, sound may not
be output from the system. Set the
audio format setting of the TV to
"PCM". For details, refer to the
operating instructions of your TV.
The sound is output from both the
system and the TV.
 Mute the sound of the system or the
TV.
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