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If there is no sound from any
of the speakers:
• Check that receiver/ampli-
fier is on and a source is
playing.
• Check that the powered
subwoofer is plugged in, and
that its
Power switch ¡ is
switched on (“
•
” position).
• Check all wires and con-
nections between receiver/
amplifier and speakers.
Make sure all wires are con-
nected. Make sure none of
the speaker wires are frayed,
cut or punctured, or touching
each other.
• 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 con-
nections between receiver/
amplifier and speakers.
Make sure all wires are con-
nected. Make sure none of
the speaker wires are frayed,
cut or punctured, or touching
each other.
• In Dolby Digital or DTS
modes, make sure that the
receiver/processor is config-
ured 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 work-
ing correctly. Turn every-
thing back on, and deter-
mine whether the problem
has followed the speaker, or
has remained in the same
channel. If the problem is in
the same channel, 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 informa-
tion. If the problem has fol-
lowed the speaker, consult
your dealer for further assis-
tance or, if that is not possi-
ble, visit www.jbl.com for
further information.
If there is no sound from the
center speaker:
• Check all wires and con-
nections between receiver/
amplifier and speaker. Make
sure all wires are connected.
Make sure none of the
speaker wires are frayed,
cut or punctured, or touch-
ing each other.
• If your receiver/processor
is set in Dolby Pro Logic mode,
make sure the center speaker
is not in phantom mode.
• If your receiver/processor
is set in Dolby Digital or DTS
modes, make sure the receiver/
processor is configured so
that the center speaker is
enabled.
If the system plays at low
volumes but shuts off as
volume is increased:
• Check all wires and con-
nections between receiver/
amplifier and speakers. Make
sure all wires are connected.
Make sure none of the
speaker wires are frayed,
cut or punctured, or touching
each other.
• If more than one pair of
main speakers is being used,
check the minimum imped-
ance requirements of your
receiver/amplifier.
If there is low (or no) bass
output:
• Make sure the connections
to the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
• Make sure the subwoofer
is plugged into an active
electrical outlet
, and is
turned on (Power switch ¡
in the “
•
” position).
• In Dolby Digital or DTS
modes, make sure your
receiver/processor is config-
ured so that the subwoofer
and LFE output are enabled.
TROUBLESHOOTING