JBL TRIO135 - Manual (Page 6)

6
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
configured so that the speaker
in question is enabled.
If there is no sound from the
center speaker (TRIO135 only):
• 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.
• 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 con-
figured 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:
• Make sure the connections
to the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
• Consider adding a powered
subwoofer to your system.
See your JBL dealer for
further assistance.
• If you are using a powered
subwoofer, check your
owner’s manual to make sure
it is correctly connected and
is being used according to the
manufacturer’s instructions.
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/processor 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/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.
• 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.
T R O U B L E S H O O T I N G