Manual JBL SCS 146 (page 9 of 100) (English)

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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 that the powered

subwoofer is plugged in, its

Power switch

is switched

on to the “ON•” position.

• 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.

• 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:

• 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 connecti-

ons 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 –).

• Make sure the subwoofer is

plugged into an active

electrical outlet.

• Make sure the powered

subwoofer is plugged in and

switched on.

• In Dolby Digital or DTS

modes, make sure your

receiver/processor is

configured so that the

subwoofer and LFE output are

enabled.

If there is no sound from the

surround speakers:

• 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.

• 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

if 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

17214 SCS140_146 DSC Multi OM 29/07/03 15:46 Side 9

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JBL SCS 146 Manual

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