Usb Device - Sony HT-RT4 Operating Instructions Manual

No sound or only a very low-level
sound is heard from the Subwoofer.
 Make sure the AC power cord
(mains lead) of the Subwoofer is
connected properly (refer to the
supplied Startup Guide).
 Press SW  + to increase the
Subwoofer volume (pages 9, 14).
 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.
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).
 Check that all the cables and cords
of the system and the connected
device are firmly inserted.
 Depending on the audio format,
sound may not be output. Make
sure that the audio format is
compatible with the system
(page 29).
No sound or only very low-level sound
is heard from the Surround Speakers.
 Make sure cable of the Surround
Speakers is connected properly to
the Subwoofer (refer to the supplied
Startup Guide).
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 Multi-channel sound which has not
been recorded as surround sound is
not output from the Surround
Speakers.
 If you want to output 2-channel
sound from the Surround Speakers,
press the CLEARAUDIO+ and set the
sound field setting to
"CLEARAUDIO+".
 Depending on the sound source,
the sound from the Surround
Speakers may have been recorded
with a soft sound effect.
The surround effect cannot be
obtained.
 Depending on the input signal and
the sound field setting, surround
sound processing may not work
effectively. The surround effect may
be subtle, depending on the
program or disc.
 To play multi-channel audio, check
the digital audio output setting on
the device connected to the system.
For details, refer to the operating
instructions supplied with the
connected device.

USB device

The USB device is not recognized.
 Try the following:
 Turn off the system.
 Remove and reconnect the USB
device.
 Turn on the system.
 Make sure that the USB device is
securely connected to the
port.
 Check if the USB device or a cable is
damaged.
 Check if the USB device is on.
 If the USB device is connected via a
USB hub, disconnect it and connect
the USB device directly to the
Subwoofer.
(USB)