JBL SCS110 CRT Television User Manual


 
Troubleshooting
three.Testing
Finally. Take a “test drive” with some favorite music or movies.
1. With the receiver/amplifier
still turned off, confirm that
its volume control is turned
all the way down. Next,
center the balance control. If
the receiver/amplifier has an
A/B speaker switch, set it to
correspond to the speaker
terminals connected to the
SCS110 system.
2. Now, turn on your receiver/
amplifier and select a music
source such as a CD player,
cassette deck or FM tuner.
3. Turn up the volume control
slowly until you hear sound
from the speakers.
4. Rotate the balance control
all the way to the left. Sound
should come only from the
left speaker. If the sound
comes from the right speaker
with the balance control to
the left, the speaker wires
have been reversed during
hook-up. Turn the receiver/
amplifier “off” and switch
both sets of speaker wires.
Dolby Pro Logic*-equipped
devices (AV Receivers,
Surround Sound processors
or decoders, TVs or other
sources) include a “test tone”
you can use to balance the
volume of all the speakers in
a surround sound system.
Refer to the instructions
accompanying your compo-
nent for selecting the test
tone mode and using it to
balance speaker levels in your
home theater.
If there is no sound from
any of the speakers, check
the following:
• Receiver/amplifier is on and
a source is playing.
• Review proper operation of
your receiver/amplifier.
If there is no sound coming
from one speaker, check the
following:
• Check the “Balance” control
on your receiver/amplifier.
• Check all wires and con-
nections between receiver/
amplifier and speakers.
• Make sure all wires are con-
nected. Make sure none of the
speaker wires are frayed, cut,
or punctured.
If the system plays at low
volumes but shuts off as
volume is increased, check
the following:
• Check all wires and con-
nections between receiver/
amplifier and speakers.
• Make sure all wires are con-
nected. 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 bass output,
check the following:
• Make sure the polarity
(+ and –) of the left and
right “Speaker Inputs” are
connected properly.
If there is no sound from
the surround speakers, check
the following:
• Check all wires and con-
nections between receiver/
amplifier and speakers.
• Make sure all wires are con-
nected. Make sure none of the
speaker wires are frayed, cut,
or punctured.
• Review proper operation of
your receiver/amplifier and its
surround sound features.
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