DOWNLOAD JBL SCS 135 Sub Service Manual ↓ Size: 120.2 KB | Pages: 6 in PDF or view online for FREE

Model
SCS 135 Sub
Pages
6
Size
120.2 KB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Audio
File
scs-135-sub.pdf
Date

JBL SCS 135 Sub User Manual / Operation Manual ▷ View online

6
7
Separate and strip the 
ends of the speaker wire 
as shown. Speakers and
electronics terminals have
corresponding (+) and (–)
terminals. Most manu-
facturers of speakers and
electronics, including JBL,
use red to denote the (+)
terminal and black for the 
(–) terminal.
The (+) lead of the speaker
wire is noted with a stripe. It
is important to connect both
speakers identically: (+) on
the speaker to (+) on the
amplifier and (–) on the
speaker to (–) on the
amplifier. Wiring “out of
phase” results in thin sound,
weak bass and a poor 
stereo image.
With the advent of
multichannel surround-
sound systems, connecting 
all of the speakers in your
system with the correct
polarity remains equally
important in order to
preserve the proper
ambience and directionality
of the program material.
S P E A K E R   C O N N E C T I O N S
Connection Tips
Dolby
*
Pro Logic
*
(Non-Digital) – Speaker Level
Use this installation method
for Dolby Pro Logic appli-
cations (not Dolby Digital,
DTS
®
or other digital
processing), where the
receiver/processor does not
have a subwoofer output, or 
a volume-controlled preamp
(line-) level output:
Connect your receiver or
amplifier’s front left and right
speaker terminals to the left
and right terminals on the
subwoofer that are marked
“High Level In.” Connect the
left and right terminals on the
subwoofer that are marked
“High Level Out” to the cor-
responding terminals on the
back of your front left and
right speakers.  
Connect your receiver or
amplifier’s center, left and
right surround-speaker
terminals to the corre-
sponding terminals on the
back of your center, left and
right surround speakers.
Right Front
Right Surround
Left Front
Left Surround
Center
+      –
+      –
+      –
+      –
+      –
+        –
+      –
Left Front
Center
+      –
Left Surround
Right Front
+      –
Right Surround
+      –
Subwoofer
Receiver
HIGH LEVEL
+               –              –               +
L                           R
OUT
IN
Dolby Pro Logic (Non-Digital) – Line Level
8
9
Use this installation method
for Dolby Pro Logic appli-
cations (not Dolby Digital, DTS
or other digital processing),
where the receiver/processor
is equipped with a subwoofer
output, or a volume-controlled
preamp (line-) level output:
Use RCA-type patch cords 
to connect the line-level
subwoofer outputs on your
receiver or amplifier to the
line-level inputs on the
subwoofer. IMPORTANT: Do
not use the LFE input on the
subwoofer with Dolby
Pro Logic processors. Note: If
your receiver or amplifier only
has one subwoofer output
jack, then you will need to use
a Y-connector (not included).
Plug the male end of the Y-
connector into your receiver
or amplifier’s subwoofer
output jack, and connect each
of the two female ends to
separate RCA-type patch
cords. Finally, plug the RCA-
type patch cords into the line-
level inputs on the subwoofer.
Connect each speaker to 
the corresponding speaker
terminals on your receiver 
or amplifier.
Use this installation method
for Dolby Digital, DTS or other
digital surround processors: 
Use the line-level input jack
marked “LFE” for the Low-
Frequency Effects channel.
Connect this jack to the LFE
output or subwoofer output 
on your receiver or amplifier.
Connect each speaker to the
corresponding speaker
terminals on your receiver 
or amplifier.
Make sure that you have
configured your surround-
sound processor for
“Subwoofer On.” The front
left, front right, center and
rear speakers should all be
set to “Small.”
Dolby Digital or DTS (or Other Digital Surround Mode) Connection
O P E R A T I O N
MIN        MAX
Subwoofer
Level
MIN        MAX
Subwoofer
Level
Move the Master Power
switch (marked “Power” ¡)
to the “
” (On) position to use
the subwoofer. The SCS135
subwoofer will automatically
turn itself on or go into
standby (sleep) mode when
left in the standby mode
(“Auto/On” switch ™ in the
“Auto” position). When your
receiver or amplifier is off, or
is not sending program
material to the subwoofer, 
the subwoofer will be in
standby mode. When the sub-
woofer senses an audio signal,
it will automatically turn itself
on. If the subwoofer does 
not sense a signal after
approximately twenty minutes,
it will automatically go into
standby mode.
When the “Auto/On” switch
™ is switched to the “On”
position, the subwoofer will
remain on, whether or not
program material is playing.
If you will be away from
home for an extended period
of time, or if the subwoofer
will not be used, switch the
Master Power switch ¡ to
the Off position.
Volume
POWER
HIGH LEVEL
+           –           –           +
SUBWOOFER
LEVEL
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
OUT
IN
L                        R
LINE LEVEL IN
LFE
L
R
AUTO              ON
MIN              MAX 
SUB 135
AC 120V~60Hz
200 Watts
FUSE
2.5A/250V
TYPE T
£
¡
IMPORTANT: CONNECT STRIPED WIRE  TO RED (    ) SPEAKER TERMINAL.
GREEN: ON
RED: STANDBY
+
LINE LEVEL IN
LFE INPUT
LFE OUT
L
R
SUBWOOFER
RECEIVER
Volume can be adjusted
using the Subwoofer Level
Control £ (above), as shown
below.
+       –
+       –
+       –
+       –
+       –
+       –
+       –
+       –
+       –
+       –
Receiver
Subwoofer
Out
Left
Front
Left
Rear
Right
Front
Right
Rear
Subwoofer
R        L
L
Center
Line-
Level
In
Right Surround
Right Front
Left Surround
Left Front
Center
10
11
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 “
” position, and the
“Auto/On” switch ™ is either
in the “On” or “Auto” 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.
• 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 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.
• 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 is either in the “On” or
“Auto” position.
• In Dolby Digital or DTS
modes, make sure your
receiver/processor is
configured so that the sub-
woofer and LFE output 
are enabled.
If there is no sound from 
the surround speakers:
• 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.
• 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.
T R O U B L E S H O O T I N G
Staple sales invoice here.
10
11
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 “
” position, and the
“Auto/On” switch ™ is either
in the “On” or “Auto” 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.
• 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 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.
• 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 is either in the “On” or
“Auto” position.
• In Dolby Digital or DTS
modes, make sure your
receiver/processor is
configured so that the sub-
woofer and LFE output 
are enabled.
If there is no sound from 
the surround speakers:
• 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.
• 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.
T R O U B L E S H O O T I N G
Staple sales invoice here.
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