Sony HT-CT790 Operating Instructions Manual page 62

 Check the network connection
(page 19) and the network settings
(page 54).
 Depending on the usage
environment (including the wall
material), radio wave reception
conditions, or obstacles between the
system and the wireless LAN router,
the possible communication distance
may be shortened. Move the system
and the wireless LAN router closer to
each other.
 Devices that use a 2.4 GHz frequency
band, such as a microwave,
BLUETOOTH, or digital cordless
device, may interrupt
communication. Move the unit away
from such devices, or turn off such
devices.
 The wireless LAN connection may be
unstable depending on the usage
environment, especially while using
the BLUETOOTH function of the
system. In this case, adjust the usage
environment.
 The wireless LAN function is not
available when using the wireless
surround function.
The wireless router you want is not
shown in the wireless network list.
 Press BACK to return to the previous
screen, and try [Wireless Setup] again
(page 19). If the wireless router you
want is still not detected, select [New
connection registration] from the
network list, then select [Manual
registration] to input a network name
(SSID) manually.
62
GB
Subwoofer
No sound is heard from the
subwoofer.
 If the power indicator on the
subwoofer does not light, try the
following.
– Make sure the AC power cord
(mains lead) of the subwoofer is
connected properly.
– Press  (power) of the subwoofer
to turn on the power.
 If the power indicator on the
subwoofer flashes slowly in green or
lights in red, try the following.
– Move the subwoofer to a location
near the unit so that the power
indicator on the subwoofer lights in
green.
– Follow the steps in "Performing the
Wireless Connection of the
Subwoofer (LINK)" (page 40).
 If the power indicator on the
subwoofer flashes in red, press 
(power) of the subwoofer to turn off
the power and check whether the
ventilation opening of the subwoofer
is blocked or not.
 The subwoofer is designed for
playback of bass sound. When the
input source does not contain much
bass sound, as is the case with most
TV programs, the bass sound may not
be audible.
 Press SW  + on the remote control
to increase the volume of the
subwoofer (page 26).
 Set the night mode to [Off]. For
details, see "Enjoying Clear Sound
with Low Volume at Midnight
(NIGHT)" (page 25).
Sound skips or has noise.
 If there is a device nearby that
generates electromagnetic waves,
such as a wireless LAN or a
microwave oven in use, locate the
system apart from it.