Sony STR-DG500 Operating Instructions Manual page 69

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 3
m (10 feet) 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 no sound, or only a very low-
level sound is heard from the center/
surround/surround back speakers.
• Select a CINEMA STUDIO EX mode
(page 50).
• Adjust the speaker level (page 30).
• Make sure the center/surround speakers
are set to either "SMALL" or "LARGE"
(page 37).
• Make sure the surround back speaker is set
to "YES" (page 37).
There is no sound from the surround
back speaker.
• Some discs have no Dolby Digital
Surround EX flag even though the
packages have Dolby Digital Surround EX
logos. In this case, select "SB ON" (page
35).
There is no sound from the sub woofer.
• Check that the sub woofer is connected
correctly and securely.
• Make sure you have turned on your sub
woofer.
• Make sure the sub woofer is set to "YES"
(page 37).
• There is no sound from the sub woofer
depending on the sound field.
The surround effect cannot be
obtained.
• Make sure the sound field function is on
(press MOVIE, or MUSIC).
• 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.
Recording cannot be carried out.
• Check that the components are connected
correctly.
• Select the source component using the
input buttons.
The FM reception is poor.
• Use a 75-ohm coaxial cable (not supplied)
to connect the receiver to an outdoor FM
antenna as shown below. If you connect
the receiver to an outdoor antenna, ground
it against lightning. To prevent a gas
explosion, do not connect the ground wire
to a gas pipe.
Outdoor FM antenna
Receiver
ANTENNA
AM
Ground wire
(not supplied)
To ground
continued
69
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