Troubleshooting – JBL CS1500 User Manual

Page 9

If there is no sound from any
of the speakers:

• Check that receiver/amplifier
is on and a source is playing.

• Check that the powered
subwoofer is plugged in and is
turned on (Power switch

pushed in).

• 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, 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.

• In Dolby Digital or DTS modes,
make sure that the receiver/
amplifier 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
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 information. If the
problem has followed 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
connections between receiver/
amplifier and speaker. Make
sure all wires are connected.
Make sure none of the speaker
wires are frayed, cut or
punctured, 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
connections between receiver/
processor 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 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

pushed in).

• In Dolby Digital or DTS modes,
make sure your receiver/
processor is configured so that
the subwoofer and LFE output
are enabled.

• Switch the Phase switch

the opposite position, and select
the position that results in the
most pleasing bass response.

If there is no sound from
the surround speakers:

• 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
whether your receiver/
processor has other surround
modes you may use.

• In Dolby Digital or DTS modes,
make sure your receiver/
processor is configured so that
the surround speakers are
enabled. When five satellites
are in use, remember to
configure your receiver or
processor for 6.1-channel
operation, and when six
satellites are in use, configure
your receiver or processor for
7.1 channels.

• 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.

TROUBLESHOOTING

English