Sony HT-CT390 Operating Instructions Manual page 26

 If a device that generates
electromagnetic radiation, such as a
wireless LAN equipment, other
BLUETOOTH devices, or a
microwave oven is nearby, move
the device away from this system.
 Remove any obstacle between this
system and the BLUETOOTH device
or move this system away from the
obstacle.
 Reposition the connected
BLUETOOTH device.
 Try changing the wireless frequency
of the Wi-Fi router, computer, etc.
to 5 GHz band.
 Increase the volume on the
connected BLUETOOTH device.
The sound is not in sync with the
image.
 When you are watching movies, you
may hear the sound with a slight
delay from the image.
Subwoofer wireless sound
No sound is heard from the subwoofer.
 The power indicator does not light
up.
• Check that the AC power cord
(mains lead) of the subwoofer is
connected properly.
• Press  on the subwoofer to turn
on the power.
 The power indicator flashes slowly
in green or lights up in red.
• Move the subwoofer to a location
near the Bar Speaker so that the
power indicator lights up in green.
• Follow the steps in "Activating
wireless transmission between
specific units (Secure Link)"
(page 21).
 If the power indicator flashes in red,
press  on the subwoofer to turn
off the power and check whether
the ventilation opening of the
subwoofer is blocked or not.
26
US
 The subwoofer is designed for
playback of bass sound. When the
input source does not contain much
of bass sound, as is the case with
most TV programs, the bass sound
may not be audible.

 Press SW
+ to increase the
volume of the subwoofer (page 22).
Sound skips or has noise.
 If there is a device nearby that
generates electromagnetic waves
like a wireless LAN or a microwave
oven in use, locate the system apart
from it.
 If there is an obstacle between the
Bar Speaker and the subwoofer,
move or remove it.
 Locate the Bar Speaker and the
subwoofer as close as possible.
 Switch the wireless LAN frequency
of any nearby Wi-Fi router or
personal computer to 5 GHz band.
 Switch the TV, Blu-ray Disc player,
etc. from wireless LAN to wired LAN.
Remote control
The remote control does not function.
 Point the remote control at the
remote control sensor on the Bar
Speaker (page 7).
 Remove any obstacles in the path
between the remote control and the
Bar Speaker.
 Replace both batteries in the
remote control with new ones, if
they are weak.
 Make sure you are pressing the
correct button on the remote
control.
The TV remote control does not work.
 Install the Bar Speaker so that it
does not obstruct the remote
control sensor of the TV.