Troubleshooting - Onkyo HTP-750 Instruction Manual

Troubleshooting

Symptom
There's no sound coming
from certain speakers?
The subwoofer does not
turn on?
The subwoofer produces
no sound?
The subwoofer produces
hardly any sound?
A humming sound can be
heard from the sub-
woofer?
Possible cause
The speaker cables are not connected properly. Check the speaker cables and correct as necessary.
The speaker configuration is not set correctly.
The power plug is not fully inserted into the
wall outlet.
The OUTPUT LEVEL control is set to mini-
mum.
The RCA cable is not properly connected to
the subwoofer's LINE INPUT.
The level of the input signal was too low and
the subwoofer entered Standby mode.
The Subwoofer configuration is not set cor-
rectly.
The source material contain little or no bass
content.
The RCA cable is not properly connected to
the subwoofer's LINE INPUT.
External interference from a TV or other elec-
tronic device is being picked up.
Remedy
Check the speaker configuration.
Insert the power plug fully into the wall outlet.
Turn up the OUTPUT LEVEL control.
Make sure that the RCA cable is properly con-
nected to the subwoofer's LINE INPUT.
Slightly increase the subwoofer pre out output level
on your AV receiver.
Check the subwoofer setting in the speaker config-
uration on your AV receiver.
Choose source material with more bass content.
Make sure that the RCA cable is properly con-
nected to the subwoofer's LINE INPUT.
Move the subwoofer and RCA cable away from the
interference source. Make sure your audio system
is grounded properly.
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