1500 ARRAY (serv.man11) - JBL Audio User Guide / Operation Manual. Page 11

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If there is no sound
from any of the
speakers:
• Check that receiver/amplifier
is on and a source is playing.
• 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.
• 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
punctured.
• In Dolby Digital or DTS modes,
make sure that the
receiver/processor is con-
figured so that the speaker in
question is enabled.
If there is no sound
from the center
speaker:
• Check all wires and connec-
tions between the receiver/
amplifier and speaker. Make
sure all wires are connected.
Make sure none of the speaker
wires are frayed, cut or
punctured.
• 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
mode, 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.
• 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 (1500
Array):
• 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 elec-
trical outlet.
• Make sure the Power switch
ª is on.
• In Dolby Digital or DTS modes,
make sure your
receiver/processor is con-
figured so that the subwoofer
and LFE output are enabled.
• Adjust the LF Level control ¢.
If there is no sound
from the surround
speakers:
• 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.
• 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/amplifier
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.
• 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
11
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