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pROBLEM SOLUtION
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 å 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, 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 connections between receiver/amplifier and speaker. •
Make sure all wires are connected. Make sure none of the speaker wires are
frayed, cut, punctured or touching each other.
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, 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, 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 å 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 • ç to the opposite position, and select the position
that results in the most pleasing bass response.
If there is no sound from the surround
speakers:
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, punctured or touching each other.
Review the 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