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ONKYO 29400086 Manuel D’Utilisation

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12
Troubleshooting
Symptom
Possible cause
Remedy
There’s no sound 
coming from certain 
speakers?
The speaker cables are not connected 
properly.
Check the speaker cables and correct as 
necessary.
The speaker configuration is not set 
correctly.
Check the speaker configuration.
The subwoofer does not 
turn on?
The power plug is not fully inserted into 
the wall outlet.
Insert the power plug fully into the wall 
outlet.
The subwoofer produces 
no sound?
The OUTPUT LEVEL control is set to 
minimum.
Turn up the OUTPUT LEVEL control.
The RCA cable is not properly connected 
to the subwoofer’s LINE INPUT.
Make sure that the RCA cable is properly 
connected to the subwoofer’s LINE INPUT.
The level of the input signal was too low 
and the subwoofer entered Standby 
mode.
Slightly increase the subwoofer pre out 
output level on your AV receiver.
The Subwoofer configuration is not set 
correctly.
Check the subwoofer setting in the speaker 
configuration on your AV receiver.
The subwoofer produces 
hardly any sound?
The source material contain little or no 
bass content.
Choose source material with more bass 
content.
A humming sound can 
be heard from the 
subwoofer?
The RCA cable is not properly connected 
to the subwoofer’s LINE INPUT.
Make sure that the RCA cable is properly 
connected to the subwoofer’s LINE INPUT.
External interference from a TV or other 
electronic device is being picked up.
Move the subwoofer and RCA cable away 
from the interference source. Make sure your 
audio system is grounded properly.
HTP-770_EnFrEs.book  Page 12  Wednesday, July 29, 2009  10:07 AM