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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 its
Power switch
å
is
switched on (“
•
” position).
• 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 punc-
tured, 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
connected. Make sure
none of the speaker wires
are frayed, cut or punc-
tured, or touching each
other.
• In Dolby Digital or DTS
modes, make sure that the
receiver/processor is con-
figured 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 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
assistance or, if that is not
possible, visit
www.jbl.com.
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 punc-
tured, or touching 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 one of the 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 punc-
tured, or touching each
other.
• If more than one pair of
main speakers is being
used, check the minimum
impedance 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
å
in the “
•
” position).
• In Dolby Digital or DTS
modes, make sure your
receiver/processor is con-
figured so that the sub-
woofer and LFE output are
enabled.
TROUBLESHOOTING