Sony HT-SF470 Manuel D’Utilisation

There is no sound from digital sources
(from OPTICAL input jack).

• Check that the INPUT MODE is set to

“OPT” for SAT/CATV input (page 62).

• Set “ARC” to “ARC OFF” when no sound

is output from TV OPT IN jack during TV
input (page 45).

There is severe hum or noise.

• Check that the speakers and components

are connected securely.

• Check that the connecting cords are away

from a transformer or motor, and at least

10 feet (3 meters) away from a TV set or
fluorescent light.

• Move your audio components away from

the TV.

• The plugs and jacks are dirty. Wipe them

with a cloth slightly moistened with
alcohol.

There is pop noise from a specific
component connected to this receiver
when you turn on the component.

• Check that the INPUT MODE is set to

“OPT” for SAT/CATV input (page 62).

There is no sound, or only a very low-
level sound is heard from the center/
surround speakers.

• Select “MOVIE-D.C.S.-” (page 33).
• Adjust the speaker level (page 60).
• Check that the speakers are connected

securely.

There is no sound from the subwoofer.

• Check that the subwoofer is connected

correctly and securely.

The surround effect cannot be
obtained.

• Make sure the sound field function is on

(press SOUND FIELD +/–).

• Sound fields do not function for signals

with a sampling frequency of more than

48 kHz.

Dolby Digital or DTS multi channel
sound is not reproduced.

• Check that the DVD, etc. you are playing

is recorded in Dolby Digital or DTS
format.

• When connecting the DVD player, etc., to

the digital input jacks of this receiver,
check the audio setting (the settings for the
audio output) of the connected component.

• Use the TV menu to set the Speaker

Setting to Audio System.

There is no sound from the component
connected to the DIGITAL MEDIA PORT
adapter.

• Adjust the volume of this receiver.
• The DIGITAL MEDIA PORT adapter

and/or component is not connected
correctly. Turn off the receiver, then
reconnect the DIGITAL MEDIA PORT
adapter and/or component.

• Check the DIGITAL MEDIA PORT

adapter and/or component device to make
sure it supports this receiver.

Video

There is no picture or an unclear
picture appears on the TV screen or
monitor.

• Make sure you have connected the video

output of your video component to the TV.

• Move your audio components away from

the TV.

• Depending on the DIGITAL MEDIA

PORT adapter, video output may not be
possible.