Sony HT-CT290 Operating Instructions Manual page 23

Sound
No TV sound is output from the system.
 Check the type and connection of
the HDMI cable or optical digital
cable that is connected to the
system and the TV (refer to the
supplied Startup Guide).
 If your TV is 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 supplied
optical digital cable.
 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
supplied optical digital cable (refer
to the supplied Startup Guide).
 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. USB, TV
and BT indicators flash continuously
in this condition. 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 regarding 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.
No sound or only a very low-level
sound of the device connected to the
system is heard.

 Press
+ to increase the volume
level (page 9).
 
 Press
or + to cancel the
muting function (page 9).
 Make sure the input source is
selected correctly. You should try
other input sources by pressing
INPUT repeatedly (page 12).
 Set the Attenuation function to off
(page 15).
 Check that all the cables and cords
of the system and the connected
device are firmly inserted.
No sound or only a very low-level
sound is heard from the subwoofer.

 Press SW
+ to increase the
subwoofer volume (page 9).
 Check that the power indicator on
the subwoofer lights up in green. If
not, refer to "No sound is heard
from the subwoofer." in "Subwoofer
wireless sound" (page 25).
 A subwoofer is for reproducing bass
sound. If the input sources contain
very little bass sound components
(i.e., a TV broadcast), the sound
from the subwoofer may be difficult
to hear.
 When you play content compatible
with copyright protection
technology (HDCP), it is not output
from the subwoofer.
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