JBL S310II, S38II T R O U B L E S H O O T I N G, If there is no sound from, the surround speakers

T R O U B L E S H O O T I N G

If there is no sound from any of the speakers:

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

•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 speakers.

•Make sure no wires are touching other wires or terminals and creating a short circuit.

•Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured.

•In Dolby* Digital or DTS® mode, make sure that the receiver/processor 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 is in the same place, i.e., the speaker that was working previously now has no sound and the speaker that was not working now sounds fine; or whether it has moved,

i.e., the speaker that was		your system for use with
not working still has no		digital “.1” surround
sound and the speaker that		formats.
was working is still fine. If
the problem is in the same		If there is no sound from
place, the source of the
		the surround speakers:
problem is most likely with
		• Check all wires and
your receiver or	amplifier,
		connections between
and you should consult the
		receiver/amplifier and
owner’s manual for that
		speakers. Make sure all
product for further
		wires are connected.
information. If the problem
		Make sure none of the
has followed the speaker,
		speaker wires are frayed,
consult your dealer for
		cut or punctured.
further assistance or,
		• Review proper operation
if that is not possible,
		of your receiver/amplifier
visit our Web site at
		and its surround sound
www.jbl.com for further
		features.
information.
		• Make sure the movie or
		TV show you are watching
If the system plays at low		is recorded in a surround
volumes but shuts off as		sound mode. If it is not,
volume is increased:		check to see if your
• Check all wires and		receiver/amplifier has
		other surround modes you
connections between
		may use.
receiver/amplifier
		• In Dolby Digital or DTS
and speakers.
		mode, make sure your
• Make sure all wires are
		receiver/processor is
connected. Make sure
		configured so that the
none of the speaker
		surround speakers are
wires are frayed, cut or
		enabled.
punctured.
		• Review the operation of
• If more than one pair of
		your DVD player and the
main speakers is being		jacket of your DVD to make
used, check the minimum		sure that the DVD features
impedance requirements		the desired Dolby Digital or
of your receiver/amplifier.		DTS mode, and that you
		have properly selected
If there is no (or low) bass		that mode using both the
		DVD player’s menu and the
output:
		DVD disc’s menu.
• Make sure the polarities
(+ and –) of the left and
right “Speaker Inputs” are
connected properly.
• Consider adding a
powered subwoofer to

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