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TROUBLESHOOTING
5
If there is no sound from
any of the speakers:
• Check that receiver/
amplifier is on and that a
source is playing.
• Review proper operation
of your receiver/amplifier.
If there is no sound
coming from one speaker:
• Check the “Balance”
control on your
receiver/amplifier.
• Check all wires and
connections between
receiver/amplifier
and speakers.
• Make sure no wires are
touching other wires or
terminals and creating a
short circuit.
• Make sure all wires are
connected. Make sure
none of the speaker wires
are frayed, cut or
punctured.
• In Dolby* Digital or DTS
®
mode, make sure that the
receiver/processor is
configured so that the
speaker in question is
enabled.
• Turn off all electronics
and switch the speaker in
question with one of the
other speakers that is
working correctly. Turn
everything back on, and
determine whether the
problem is in the same
place, i.e., the speaker that
was working previously
now has no sound and the
speaker that was not
working now sounds fine;
or whether it has moved,
i.e., the speaker that was
not working still has no
sound and the speaker that
was working is still fine. If
the problem is in the same
place, the source of the
problem is most likely with
your receiver or amplifier,
and
you should consult the
owner’s manual for that
product for further
information.
If the problem
has followed the speaker,
consult your dealer for
further assistance or,
if that is not possible,
visit our Web site at
www.jbl.com for further
information.
If the system plays at low
volumes but shuts off as
volume is increased:
• Check all wires and
connections between
receiver/amplifier
and speakers.
• Make sure all wires are
connected. Make sure
none of the speaker
wires are frayed, cut or
punctured.
• If more than one pair of
main speakers is being
used, check the minimum
impedance requirements
of your receiver/amplifier.
If there is no (or low) bass
output:
• Make sure the polarities
(+ and –) of the left and
right “Speaker Inputs” are
connected properly.
• Consider adding a
powered subwoofer to
your system for use with
digital “.1” surround
formats.
If there is no sound from
the surround speakers:
• Check all wires and
connections between
receiver/amplifier and
speakers. Make sure all
wires are connected.
Make sure none of the
speaker wires are frayed,
cut or punctured.
• Review proper operation
of your receiver/amplifier
and its surround sound
features.
• Make sure the movie or
TV show you are watching
is recorded in a surround
sound mode. If it is not,
check to see if your
receiver/amplifier has
other surround modes you
may use.
•
In Dolby Digital or DTS
mode, make sure your
receiver/processor is
configured so that the
surround speakers are
enabled.
• Review the operation of
your DVD player and the
jacket of your DVD to make
sure that the DVD features
the desired Dolby Digital or
DTS mode, and that you
have properly selected
that mode using both the
DVD player’s menu and the
DVD disc’s menu.