SUB 150P - JBL Audio Service Manual (repair manual)

sub 150p service manual
Model
SUB 150P
Pages
48
Size
4.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sub-150p.pdf
Date

Read JBL SUB 150P Service Manual online

SUB 150P / 230  
Active Subwoofer.  
Weave design, Studio Series.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Released EU2010   
 
Harman Consumer Group, Inc. 
 
Rev 1, 04/2012 
 
 
 
 
 
       8500 Balboa Boulevard 
 
 
 
 
 
OWNER’S MANUAL   
 
 
2      
SPECIFICATIONS 
 
 
 
PACKAGE GUIDE AND PARTS 
 
TROUBLESHOOTING FLOW CHART 
PARTS LIST   
 
 
 
 
SEMICONDUCTOR PINOUTS 
 
14 
PCB DRAWINGS 
 
 
 
25 
BLOCK DIAGRAMS   
 
 
36 
SCHEMATIC DIAGRAMS 
 
       
38 
WIRING DIAGRAM   
 
 
48 
CONTENTS 
JBL
SUB 150P/230 Service Manual
Page 1 of 48
080-1475
1X
1X
1X
Included Items
Your new JBL
®
 SUB150P 300-watt powered subwoofer incorporates 
a 10" (250mm) PolyPlas™ cone transducer and a built-in high-
performance 300-watt (RMS) amplifier that deliver the powerful, 
dynamic and accurate low-frequency performance that makes your 
film soundtracks and music come alive. And with line-level and LFE 
inputs, adjustable crossover and phase controls and automatic turn 
on/off, the SUB150P is also simple to connect and set up.
We’re confident that this JBL subwoofer 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 subwoofer. For more in-depth 
information, go to our Web site: www.jbl.com.
thank You For choosIng thIs JBl
®
 Product
suB150P
300-Watt, 10" (250mm) Powered Subwoofer
quIck-start guIde
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SUB 150P/230 Service Manual
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2
Phase switch: This switch determines whether the subwoofer 
transducer's piston-like action moves in and out in phase with the main 
speakers. If the subwoofer were to play out of phase with the main 
speakers, the sound waves from the main speakers could partially cancel 
out the sound waves from the subwoofer, reducing bass performance 
and sonic impact. This phenomenon depends in part on the placement of 
all the speakers relative to the listening position and to each other in the 
room.
Input mode switch: When this switch is in the “Normal” setting, 
the input signal from both Line In connectors is routed through the 
subwoofer's built-in low-pass crossover network. When the switch is in the 
“LFE” setting, the input signal from the LFE Input connector bypasses the 
subwoofer's built-in crossover network.  
Volume control: Use this control to adjust the subwoofer’s volume. 
Turn the knob clockwise to increase the volume; turn the knob 
counterclockwise to decrease the volume.
crossover control: This control determines the highest frequency 
at which the subwoofer reproduces sounds. The higher you set the 
Crossover control, the higher in frequency the subwoofer will operate 
and the more its bass will “overlap” that of the satellite speakers. This 
adjustment helps achieve a smooth transition of bass frequencies between 
the subwoofer and the satellites for a variety of different rooms and 
subwoofer locations.
NOTE: The Crossover Control functions only when the Input Mode switch 
is in the “Normal” setting. 
on/standby led: When the Power switch is in the “On” position, this 
LED indicates whether the subwoofer is in the On or Standby state:
• When the LED glows green, the subwoofer is turned on. 
• When the LED glows red, the subwoofer is in the Standby mode.
line In/lFe Input connectors: 
•  When you’re connecting the subwoofer to the dedicated subwoofer 
output of a receiver/processor that has its own low-pass crossover 
network, use the LFE Input connector and set the Input Mode switch in 
the “LFE” position.
•  When you're connecting the subwoofer to the preamp or subwoofer 
outputs of a receiver/processor that does not have its own low-pass 
crossover network, use both Line In connectors and set the Input Mode 
switch in the “Normal” position. If your receiver/processor only has one 
subwoofer output you can use either Line In connector.
Power switch: Set this switch in the “On” position to turn the subwoofer 
on. The subwoofer will then be in the Standby mode. It will automatically 
turn On when an audio signal is detected at its inputs, and will return 
to the Standby mode when no audio signal is detected its inputs after 
approximately 10 minutes.
If you will be away from home, or will not be using the subwoofer for an 
extended period, set this switch in the “Off” position to conserve energy.
Power cord connector: After you have made and verified the 
subwoofer’s input connections, plug the female end of the supplied IEC 
power cord into the subwoofer’s Power Cord connector, and plug the 
other end of the power cord into an active, unswitched electrical outlet for 
proper operation of the subwoofer. DO NOT plug the power cord into the 
accessory outlets found on some audio components.
suBwooFer rear-Panel controls and connectIons
Phase Switch
Input Mode Switch
Volume Control
Crossover Control
On/Standby LED
Power Switch
Line-Level/LFE 
Input Connectors
Power Cord 
Connector
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SUB 150P/230 Service Manual
Page 3 of 48
3
www.jbl.com
ENGLISH
PlacIng the suBwooFer
connectIng the suBwooFer
The performance of a subwoofer is directly related to its placement in the listening room 
and its physical position relative to the other speakers in the system. 
While it is true that in general our ears do not hear directional sounds at the low 
frequencies where subwoofers operate, when installing a subwoofer within the limited 
confines of a room, the reflections, standing waves and absorptions generated within 
the room will strongly influence the performance of any subwoofer system. As a result, 
the specific location of the subwoofer in the room does become important to the 
amount and quality of bass that is produced.
For example, placing the subwoofer next to a wall generally will increase the amount of 
bass in the room; placing it in a corner (1) generally will maximize amount of bass in the 
room. However, corner placement can also increase the destructive effect of standing 
waves on bass performance. This effect can vary depending on the listening position 
– some listening positions may yield very good results while others may have far too 
much (or too little) bass at certain frequencies.
In many rooms, placing the subwoofer along the same plane as the left and right 
speakers (2) can produce the best integration between the sound of the subwoofer and 
that of the left and right speakers. In some rooms, the best performance could even 
result from placing the subwoofer behind the listening position (3). 
We strongly recommend that you experiment with placement before choosing a final 
location for your subwoofer. One way you can determine the best location for the 
subwoofer is by temporarily placing it in the listening position and playing music with 
strong bass content. Move around to various locations in the room while the system is 
playing (putting your ears where the subwoofer would be placed), and listen until you find 
the location where the bass performance is best. Place the subwoofer in that location.
Front Left 
Speaker
TV
Center 
Speaker
Front Right 
Speaker
Surround Left 
Speaker
Surround Right 
Speaker
1.
2.
3.
to a ReceiveR oR PReamP/PRocessoR with a low-Pass filteRed dedicated subwoofeR outPut
to a ReceiveR oR PReamP/PRocessoR with PReamP outPuts
Receiver/Processor
Receiver/Processor
Set Input Mode 
Switch to “LFE”
Set Input Mode 
Switch to “Normal”
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SUB 150P/230 Service Manual
Page 4 of 48
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Download JBL SUB 150P Service Manual (Repair Manual)

Here you can read online and download JBL SUB 150P Service Manual in PDF. SUB 150P service manual will guide through the process and help you recover, restore, fix, disassemble and repair JBL SUB 150P 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.