SB 400 - JBL Audio Service Manual (repair manual)

sb 400 service manual
Model
SB 400
Pages
31
Size
7.05 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sb-400.pdf
Date

Read JBL SB 400 Service Manual online

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
       
 
Service Manual
 
 
 
 
 
 
  
SB 400  
Powered sound bar with powered, wireless 8” Subwoofer.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Released EU2012   
 
Harman Consumer Group, Inc.   
Rev 1, 02/2014 
 
 
 
 
 
       8500 Balboa Boulevard 
 
 
 
 
 
OWNER’S MANUAL   
 
 
2      
SPECIFICATIONS   
 
 
10 
EXPLODED VIEW + PARTS, SOUNDBAR   12 
EXPLODED VIEW + PARTS, SUB            13 
 
PCB DRAWINGS 
 
 
 
 14 
IC PINOUTS   
 
 
 
 20 
BLOCK DIAGRAM   
         
 28 
WIRING DIAGRAM                       
 29 
SOUNDBAR SCHEMATIC DIAGRAMS  
 30 
CONTENTS 
CINEMA SB400
powered soundbar speaker
THANK YOU FOR CHOOSING THIS JBL
®
 
PRODUCT
The JBL Cinema SB400 powered soundbar speaker system 
is a complete, integrated sound system that will create an 
extraordinarily realistic cinema experience in your own living 
room. The powered soundbar unit can mount on a wall or sit on 
a shelf and includes all of the cables you need to connect it to 
your TV and your cable/satellite tuner or disc player. The wireless 
subwoofer unit supplies all of your entertainment's drama and 
impact, and can be placed anywhere without needing to be 
connected to the soundbar unit.
We’re confident that this JBL system will provide every note 
of enjoyment that you expect – and that when you think about 
purchasing additional audio equipment for your home, car or 
office, you will once again choose JBL products.
This quick-start guide contains all the information you need to set 
up, connect and adjust your new speaker system. For more in-
depth information, go to our Web site: www.jbl.com.
INCLUDED ITEMS
1x
1x
1x
2x
1x
1x
1x
qUICK-START GUIDE
JBL
SB 400 Service Manual
Page 1 of 30
2
SOUNDBAR REAR-PANEL CONTROLS AND 
CONNECTIONS 
Power 
Switch
Power Cord  
Connector
EQ  
Switch
HDMI Input  
Connectors
Pairing Button 
and LED
HDMI ARC 
TV Out Connector
Optical Input  
Connector
Aux Input  
Connector
Power switch: Set this switch to the “On” position to activate the 
soundbar. In normal operation, this switch will be left in the “On” 
position. See 
Turning the Soundbar On and Off, on page 5, for more 
information.
Power Cord connector: Connect the included power cord here. See 
Power Connections, on page 5, for more information. 
HDMI
®
 Input connectors: HDMI connections transmit digital audio 
and video signals between devices. If you have source devices with 
HDMI connectors, using them will provide the best possible audio and 
video performance quality. 
HDMI ARC TV Out connector: If your TV has an HDMI input, use an 
HDMI cable (not supplied) to connect it to the soundbar's HDMI ARC 
TV Out connector. The soundbar will pass video from source devices 
connected to its HDMI Input connectors, along with its own on-screen 
information display to the TV. If your TV is equipped with the HDMI 
Audio Return Channel (ARC) Function, you can feed its sound to the 
soundbar via the HDMI ARC TV Out connection, and it will not require 
additional audio connections to the soundbar. The ARC signal is active 
when the HDMI TV source is selected.
Pairing button and LED: Press the Pairing button to initiate wireless 
pairing between the soundbar and the wireless subwoofer. See Pairing 
the Units for Wireless Operation, on page 6, for more information.
EQ switch: Use this switch to adjust the soundbar’s bass for either wall 
or table mounting. If you’re mounting the soundbar on a wall with the 
included wall-mount bracket, set the EQ switch to the “Wall” position 
for the most natural-sounding bass performance. If you are placing the 
soundbar on a table, set the EQ switch to the “Table” position for the 
most natural-sounding bass performance.
Aux Input connection: Use the included stereo 3.5mm to stereo RCA 
audio cable to connect the stereo analog outputs of your TV, disc player 
or cable/satellite tuner here.
Optical Input connector: If your TV, disc player or cable/satellite tuner 
has an optical digital output, use the included optical cable to connect 
it here. 
IMPORTANT: Do not connect the power cord to an AC outlet until you 
have made and verified all other connections.
If you will not be using the soundbar for an extended period – for 
instance, if you’re going on vacation – set the Power switch to the “0” 
(off) position.
SOUNDBAR TOP-PANEL CONTROLS AND 
REMOTE CONTROL
Volume  
Buttons
Source Indicator 
LEDs
Source  
Button
Surround  
ModeButton
Bluetooth  
Button
Power  
Button
Volume Buttons
Surround Mode  
Button
Power Button
Mute Button
Bass Boost  
Button
Source Buttons
Power button: To turn the system on when the soundbar is in the 
Standby mode, press the Power button on either the soundbar or 
the remote. (The Power indicator will turn white.) To put the system 
in the Standby mode, press either Power button while the system is 
on. (The Power indicator will turn amber.) The subwoofer will remain 
on for approximately ten minutes after the soundbar goes into the 
Standby mode. If you do not press the Power button, the soundbar 
and the subwoofer will both automatically go into the Standby mode 
approximately 10 minutes after the audio signal ceases.
NOTE: If you put the soundbar into the Standby mode by pressing 
the Power button, you must manually turn it on by pressing the Power 
button again. If the soundbar automatically goes into the Standby 
mode 10 minutes after the audio signal ceases, it will automatically 
turn on whenever the soundbar detects an audio signal at either input 
connection.
Mute button (remote control only): Press the Mute button to mute 
the system. (The Volume +/– indicators both illuminate white.) While the 
system is muted, press the Mute button again or either Volume button 
to restore the sound.
NOTE: Pressing both of the soundbar’s Volume buttons at the same 
time while the system is on will mute the system. Pressing either 
Volume button while the system is muted will restore the sound.
Surround Mode button: This button turns the soundbar’s HARMAN 
Display Surround processing on and off. The Surround button indicator 
turns amber when HARMAN Display Surround is active, and turns white 
when HARMAN Display Surround is not active (normal stereo sound). 
See 
Changing the Surround Mode, on page 7, for more information.
Volume buttons: Press the “+” button to increase the volume; press 
the “–” button to decrease the volume. The buttons illuminate white for 
a few seconds after being pressed.
Source button: This button cycles between the sources in the 
following order: Bluetooth, Aux, Optical, HDMI TV, HDMI 1, HDMI 2, 
HDMI 3, Bluetooth, etc. The active source's Source Indicator LED will 
illuminate.
Note: The remote has an individual selector button for each source 
except Bluetooth.
JBL
SB 400 Service Manual
Page 2 of 30
www.jbl.com
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Bluetooth button (soundbar only): Press this button to play the 
audio stream from a paired Bluetooth device through the soundbar. (The 
Bluetooth Source Indicator LED will illuminate when a paired Bluetooth 
device is the active source.) Press and hold this button to force the 
soundbar into the Bluetooth pairing mode. See Bluetooth Operation, on 
page 7, for more information.
Bass Boost button (remote control only): Press the remote’s 
Bass Boost button to enhance low-frequency performance. Pressing 
the Bass Boost button again will return the soundbar’s normal low-
frequency performance.
SUBWOOFER CONTROLS AND CONNECTIONS
Subwoofer Level control: Use this control to balance the subwoofer’s 
volume with that of the soundbar. Turn the knob clockwise to increase 
the subwoofer’s volume; turn it counterclockwise to decrease the 
subwoofer’s volume.
Crossover control: This knob adjusts the subwoofer’s cutoff between 
40Hz and 200Hz.The higher you set the Cutoff control, the higher 
in frequency the subwoofer will operate and the more its bass will 
“overlap” that of the soundbar. This adjustment helps achieve a smooth 
transition of bass frequencies between the subwoofer and the soundbar 
for a variety of different rooms and subwoofer locations. See Subwoofer 
Crossover control, on page 8, for more information.
Phase switch: This switch determines whether the subwoofer driver’s 
piston-like action moves in and out in phase with the speakers in the 
soundbar. If the subwoofer were to play out of phase with the soundbar 
speakers, some of the sound waves produced by the subwoofer or 
soundbar could be canceled, reducing bass performance and sonic 
impact. This phenomenon depends in part on the relative placement of 
the speakers in the room. See Subwoofer Phase switch, on page 8, for 
more information.
Wireless Pairing switch and LED: Press this switch to initiate 
wireless pairing between the subwoofer and the soundbar. See Pairing 
the Units for Wireless Operation, on page 6, for more information.
•  The LED lights blue continuously when the subwoofer is on and 
linked to the soundbar.
•  The LED slowly flashes blue when the subwoofer is on and the 
wireless link is not established between the subwoofer and the 
soundbar.
•  The LED rapidly flashes blue during the wireless pairing process.
Power switch: Set this switch to the “On” position to activate the 
subwoofer. In normal operation, this switch will be left in the “On” 
position. See Turning the Subwoofer On and Off, on page 6, for more 
information.
If you will not be using the subwoofer for an extended period – for 
instance, if you’re going on vacation – set the Power switch to the “Off” 
position.
Power Cord connector: Connect the included power cord here and 
into an active, unswitched AC outlet. See Power Connections, on page 
5, for more information.
IMPORTANT: Do not connect the power cord to an AC outlet until 
you have made and verified all other connections.
Power  
Switch
Subwoofer Level 
Control
Crossover 
Control
Phase 
Switch
Wireless Pairing 
Button
Wireless Pairing 
LED
Power Cord 
Connector
JBL
SB 400 Service Manual
Page 3 of 30
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Download JBL SB 400 Service Manual (Repair Manual)

Here you can read online and download JBL SB 400 Service Manual in PDF. SB 400 service manual will guide through the process and help you recover, restore, fix, disassemble and repair JBL SB 400 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.