Sony STR-DA7100ES - Manual (Page 131)

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Troubleshooting
If you experience any of the following
difficulties while using the receiver, use this
troubleshooting guide to help you remedy the
problem. Should any problem persist, consult
your nearest Sony dealer.
There is no sound, no matter which
component is selected.
• Check that both the receiver and all
components are turned on.
• Check that MASTER VOLUME control is
not set at –
∞ dB.
• Check that SPEAKERS is not set to
“OFF” (page 52).
• Check that all speaker cords are connected
correctly.
• Press MUTING on the remote to cancel
the muting function.
There is no sound from a specific
component.
• Check that the component is connected
correctly to the audio input jacks for that
component.
• Check that the cord(s) used for the
connection is (are) fully inserted into the
jacks on both the receiver and the
component.
There is no sound from one of the front
speakers.
• Connect a pair of headphones to the
PHONES jack to verify that sound is
output from the headphones. If only one
channel is output from the headphones, the
component may not be connected to the
receiver correctly. Check that all the cords
are fully inserted into the jacks on both the
receiver and the component. If both
channels are output from the headphones,
the front speaker may not be connected to
the receiver correctly. Check the
connection of the front speaker which is
not outputting any sound.
• Make sure you have not connected only
the L or R jack to a monaural component.
Use a monaural-stereo cable (not
supplied) and connect it to both the L and
R jacks. However, there will be no sound
from the center speaker when a sound field
(PRO LOGIC, etc.) is selected. When the
center speaker is set to “NO,” sound is
output only from the front L/R speakers.
There is no sound, or only a very low-
level sound is heard.
• Check that the speakers and components
are connected securely.
• Check that you have selected the correct
component with INPUT SELECTOR.
• Check that SPEAKERS is not set to
“OFF” (page 52).
• Check that headphones are not connected.
• Press MUTING on the remote to cancel
the muting function.
• When only a very low-level sound is
heard, check to see if NIGHT MODE is
activated (page 94).
• The protective device on the receiver has
been activated. Turn off the receiver,
eliminate the short-circuit problem, and
turn on the power again.
There is no sound from analog 2
channel sources.
• Check that the DIGITAL ASSIGN
function is not used to assign the audio
input of another source to the selected
input (page 61).
• Check that the INPUT MODE is not set to
“COAXIAL FIXED” nor “OPTICAL
FIXED” for the selected input (page 60).
• Check that the MULTI CH IN function is
not selected.
There is no sound from digital sources
(from COAXIAL or OPTICAL input jack).
• Check that the DIGITAL ASSIGN
function is not used to assign the audio
input of another source to the selected
input (page 61).
• Check that the INPUT MODE is not set to
“ANALOG 2CH FIXED” (page 60).
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