DOWNLOAD JBL SCS 138 (serv.man2) Service Manual ↓ Size: 375.01 KB | Pages: 12 in PDF or view online for FREE

Model
SCS 138 (serv.man2)
Pages
12
Size
375.01 KB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Audio
File
scs-138-sm2.pdf
Date

JBL SCS 138 (serv.man2) User Manual / Operation Manual ▷ View online

5
M O U N T I N G   O P T I O N S
Satellites and Surrounds
On shelves.
Wall-Mounting
Attach plate to wall. The
brackets should be placed,
if possible, so that the
screws will fasten into a
wooden wall stud. If that is
not possible, use properly
selected wall anchors.
The customer is respon-
sible for proper selection
and use of mounting
hardware, available
through hardware stores,
to properly and safely wall-
mount the speakers.
On the wall. Wall brackets
are included.
Slide speaker onto support.
On optional stands
(FS300S).
Place speaker and support
on wall plate.
6
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 all
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
7
Dolby* Pro Logic* (Non-Digital) – Speaker Level
Use this installation method for
Dolby Pro Logic applications
(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
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.
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.”
Note:
When using the LFE input, the
subwoofer's Crossover control
is NOT active, because this
function is controlled by your
surround processor.
When using the LFE input, set
the subwoofer's Volume control
to "Max" and calibrate the
subwoofer level along with the
other speakers according to
the set-up instructions in the
owner's manual for your
surround receiver/amplifier.
Dolby Digital or DTS
®
(or Other Digital Surround Mode) Connection
LINE LEVEL IN
LFE INPUT
LFE OUT
L
R
SUBWOOFER
RECEIVER
+       –
+       –
+       –
+       –
+       –
+       –
+       –
+       –
+       –
+       –
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
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.
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