Read JBL SCS 175 Sub (serv.man5) User Guide / Operation Manual online
If there is no sound from any
of the speakers, check the
following:
of the speakers, check the
following:
• Receiver/amplifier is on and a
source is playing.
source is playing.
• Powered subwoofer is plugged
in and is in the “On” position.
in and is in the “On” position.
• 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.
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.
your receiver/amplifier.
If there is no sound coming
from one speaker, check the
following:
from one speaker, check the
following:
• Check the “Balance” control
on your receiver/amplifier.
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.
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 the system plays at low
volumes but shuts off as vol-
ume is increased, check the
following:
volumes but shuts off as vol-
ume is increased, check the
following:
• 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.
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.
speakers is being used, check
the minimum impedance
requirements of your
receiver/amplifier.
If there is low bass output,
check the following:
check the following:
• Make sure the connections to
the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
• Make sure that the subwoofer
is plugged into an active elec-
trical outlet and is turned on.
is plugged into an active elec-
trical outlet and is turned on.
If there is no sound from
the surround speakers, check
the following:
the surround speakers, check
the following:
• 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.
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 and its
surround sound features.
your receiver/amplifier and its
surround sound features.
• Make sure the movie or TV
show you are watching is
recorded in Dolby surround. If it
is not, check to see if your
receiver/amplifier has other
surround modes you may use.
show you are watching is
recorded in Dolby surround. If it
is not, check to see if your
receiver/amplifier has other
surround modes you may use.
Troubleshooting
Click on the first or last page to see other SCS 175 Sub (serv.man5) service manuals if exist.