JBL PB-10 Service manual

PowerBass™ Series

PB10

Powered Subwoofer

Service Manual

JBL Consumer Products
250 Crossways Park Dr.

Woodbury, New York 11797 Rev7 2/2004

PB10 TABLE OF CONTENTS

PB10 – DIFFERENCES IN REVISION 1 AND REVISION 2

REVISION 1 REVISION 2

Amplifier has main power switch
Amplifier faceplate says “Made in Canada”
Amplifier serial number starts with “AM” Amplifier serial number starts with “HA”
Black (or silver) potted, non-serviceable output module Output transistors in the open, on a large black heatsink

Large plastic cup enclosing the rear of the amp assembly

Main PCB, bottom, solder-side contains all SMD devices

“Made in Mexico” label on outer part of cabinet

BOTH VERSIONS OF THESE AMPLIFIERS ARE NOT CONSIDERED INTERCHANGEABLE; THEY ARE NOT A
DROP-IN REPLACEMENT IN THE CABINET OF THE OTHER VERSION.

Safety Information ………………………………………………………………….3
Basic Specifications ………………………………….…………………………….4
Detailed Specifications …………………………………………………………….5
Controls and their Function …………….………………………………………….6
Speaker Connection …………………….………………………………………….7
Operation ………………………………….….…………………………………….10
Troubleshooting…………………………………………………………………….11
Test Setup and Procedure ………………………………………….…………….12
Service Bulletin JBL 2001-03 …………………………………………………….13
Service Bulletin JBL 2001-04 …………………………………………………….14
Tech Tip JBLTT2003-04…………………………………………….…………….17
Exploded View/Packaging ..………………………………………...…………….18
Amplifier Exploded View ………………………………………………………….19
Amplifier Faceplate/Access…………………………………….…………………20
Integrated Circuit Diagrams……………………………………………………….21
Testing Procedures..………………………………….……………………………22
Block Diagram Revision 2…………………………………………………………29
Electrical Parts List (PCB version 6.3 – 7.0)……………… ………..………….30
Electrical Parts List (PCB version 7.2) …………………………...………..……34
Electrical Parts List Revision 2……………………………………..…………….38
Printed Circuit Boards (PCB version 6.3 – 7.0)…… ………………...…..…….41
Printed Circuit Boards (PCB version 6.4)………..… ………………...…..…….44
Printed Circuit Boards (PCB version 7.2)…… ……...………………………….45

Schematics Version 1

Preamp (PCB version 6.3 – 7.0)……………… …………… ………….48
Power Amp (PCB version 6.3)………………… ……………….……….49
Power Amp (PCB version 7.0)…………………………..……………….50
Preamp (PCB version 7.2)……………….…………….……….. ……….51
Power Amp (PCB version 7.2)………………… ……….……………….52

Schematics Version 2……………………………………..…………………….…53

PB10

3

Warning

Any person performing service of this unit will be exposed
to hazardous voltages and the risk of electric shock. It is
assumed that any person who removes the amplifier from
this cabinet has been properly trained in protecting
against avoidable injury and shock. Therefore, any service
procedures are to be performed by qualified service
personal ONLY!

Caution

Early revisions of the unit did not have a power switch.
Hazardous voltages are resent within the unit whenever it
is plugged in.

Before amplifier is plugged in, be sure its rated voltage
corresponds to the voltage of the AC power source to be
used. Incorrect voltage could cause damage to the
amplifier when the AC power cord is plugged in. Do not
exceed rated voltage by more than 10%: operation below
90% of rated voltage will cause poor performance or may
shut the unit off.

Leakage/Resistance Check

Before returning the unit to the customer, perform a
leakage or resistance test as follows:

Leakage Current. Note there is no power switch on early
revisions of this unit. When the power plug is plugged in,
the unit is live. Connect the unit to its rated power source.
Using an ammeter, measure the current between the
neutral side of the AC supply and chassis ground of the
unit under test. If leakage current exceeds 0.5mA, the unit
is defective. Reverse the polarity of the AC supply and
repeat.

Resistance. Measure the resistance from either side of the
line cord to chassis ground, If it is less than 500k ohms,
the unit is defective.

WARNING! DO NOT return the unit to the customer if it
fails one of these tests until the problem is located and
corrected.

Critical Components

All components identified with the IEC
symbol in the parts list and schematic
diagram designate components in which
safety can be of special significance when

replacing identified with. Use only the
replacement parts designated in the parts list or parts
with the same rating of resistance, wattage or voltage.

SAFETY INFORMATION

List of Safety Components
Requiring Exact Replacements

Revision 1 Revision 2 Description

F1 - 80114 093-205209-300 Line Fuse Slo Blo 1.25A

5x20mm

PWRCORD 083-041802-009 250V UL approved SPT-2
80105 or better with polarized

plug, UL approved wired
with the hot side to fused
side. Use with factory
replacement panel strain
relief (70305) only.

TRX 042-010052-003 Power Transformer.
80135 Use only factory

replacement.

BR RECT BR1 Bridge diode. Use only
50100 052-400080-000 factory replacement.

C1,2 C6,8 4700uF 50V electrolytic
30706 034-470745-200 filter caps. Be sure

replacement part is at
least the same working
voltage and capacitance
rating. Also the lead
spacing is important.
Incorrect spacing may
cause premature failure
due to internal cabinet
pressure and vibration.

C10 Does not apply 10uF, 100 volt NPE low
30712 df radial. (On Power

amp PCB)

S64AMI Does not apply Power output module.
60301 Use only factory

replacement

Faceplate n/a Use only factory
70325 replacement

Rear Amp Cover 063-531808-000 Use only factory

replacement

Inductor Does not apply CMC - Use only factory
80100 replacement

Inductor Does not apply L1 - Use only factory
80101 replacement

Does not apply Inductor L1 - Use only factory

043-560200-000 replacement

Does not apply Inductor L2 - Use only factory

043-300101-000 replacement

Does not apply Inductor L3 - Use only factory

043-700101-000 replacement

Does not apply Inductor L4 - Use only factory

043-324300-000 replacement

PB10

4

g

BASIC SPECIFICATIONS PB10 Subwoofer

Output Power

Driver

Frequency Response

Inputs

Outputs

Low-Pass Frequency

High-Pass Frequency

Dimensions (H x W x D)

Weight

150 watts RMS

10" Woofer

27Hz – Low

Pass Frequency setting

Line Level (option: LFE); Speaker Level

Speaker level fixed frequency 150Hz

Variable from 50Hz – 150Hz

150Hz when using Speaker Level Output

14" x 14" x 15"
356mm x 356mm x 381mm
(with feet) 16" x 14" x 15"
406mm x 356mm x 381mm

35 lb/15.9kg

Refinements may be made on occasion to existing products without notice but will always meet or exceed original
specifications unless otherwise stated.
PowerBass is a re

istered trademark of JBL, Incorporated.

00232-1

PB10

5

mits

p

@ Sp

q

p

p

p

(BW=20 KHz)

e

(

p

p

signal applied

emoved

@ Sp

pp

@

pp

@

@

p

@

p

yp

yp

DETAILED SPECIFICATIONS PB10 Subwoofer

JBL PB 10

LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit

Parameter Specification Unit

Amp Section

Type (Class AB, D, other) D n/a

Load Impedance (speaker) 4 Ohms

Rated Output Power 150 Watts

THD @ Rated Power 0.3 %

THD @ 1 Watt 0.1 %

DC Offset 10 mV-DC

Damping factor 50 DF

Input Sensitivity

Input Frequency 50 Hz

L&R 128 mVrms

LFE 128 mVrms

Speaker/Hi Level Input 1.28 Vrms

Signal to Noise

SNR-A-Weighted 100 dBA

SNR-unweighted 80 dBr

SNR rel. 1W-unweighted 65 dBr

Residual Noise Floor 1 mVrms

Residual Noise Floor 1.5 mVrms(max)

Input Impedance

Filters

Speaker in LP 2nd order variabl

Subsonic filter

LFE Low pass 2nd order fixed 200>LP<1K Hz

Speaker out HP filter

Left & Right 200 Hz

Left & Right 100 Hz

Limiter

Signal Sensing (ATO)

Auto-Turn-On (yes/no) YES

ATO Input test frequency 50 Hz

ATO Level LFE Input 4 mV

ATO Level Speaker in 50 mV

ATO Turn-on time 5 ms

Auto Mute/ Turn-OFF Time 15 minutes

Power on Delay time 3 sec.

Transients/Pops

ATO Transient 5 mV-peak

Turn-on Transient 50 mV-peak

Turn-off Transient 50 mV-peak

Efficiency 65 %

Stand-by Input Power 15 Watts

Power Cons. @ rated power 115 Watts

Protection

Short Circuit Protection YES

Thermal Protection YES

DC Offset Protection YES

Line Fuse Rating US version Amps

US 120vac/60Hz Yes 108-132 120 Vrms

EU 230vac/50-60Hz Yes 207-264 230 Vrms

Line Input 20K ohms

Speaker/Hi Level Input 4.7K ohms

HPF) fixed 6th o Fixed

150W Powered Sub Amp

60-150 Hz

YES

EU Amps

QA Test

Li

n/a

Nominal

n/a

1 in

70

22k filter

1

22k filter

0.5

20

35

Nominal Fre

50

±2dB

±2dB

±2dB

70-75

70-80

2 - 2.8 Volume @max, using DVM or A/P

2 - 2.8 Volume @max, w/ A/P Swept

functional

functional

functional

functional

functional Amp connected and AC on, then input

2v-

2v-

functional

functional

To 75 Watts

To 75 Watts

To 75 Watts

relative to rated

relative to rated

relative to 1W Out

60

Bandpass Measurement (Line freq.+

Nominal

n/a

Nominal

n/a

± 10

Single input driven

± 10 S

± 10 S

17 T before muting, after signal is

4

n/a

64

18

120

-

1.5

TBD

eaker input - Spkr out 4 Ohms

eaker input - Spkr out 8 Ohms

Auto - on selection switch in Auto

r

AC Power Applied

Speaker Outputs

Speaker Outputs

@ nom. line voltage

nom. line voltage

Direct short at out

1/8 max unclipped Power

DC

e-T or Slo Blo-250 V

T

e-T or Slo Blo-250 V

T

Conditions

ut driven

eaker Outputs

.

ower

ower

ut

=

"

"

"

eaker Outputs

ut

resent at Speaker Out leads

PB10

6

PB10 Subwoofer Controls and Their Function

1. Power - These lights will be red when the unit is

plugged in and not receiving a signal; when the PB10
receives a signal, the lights will cycle to GREEN. If no
signal is received after 10-15 minutes the lights will
cycle back to RED (standby) until a signal is present
again.

2. Level Control - The subwoofer Level Control, PB10,

(located on the rear panel) adjusts the volume of the
subwoofer relative to the rest of the system.

3. LFE/Normal Switch - Ordinarily placed in the Normal

position - but switch to LFE when playing Dolby

®

Digital, DTS®or other digital surround modes - see
page 9.

4. Phase Switch - Changes the subwoofer’s output to

be in phase or 180 degrees out of phase with the
program material.

5. Crossover Frequency - Sets the highest frequency

the subwoofer will reproduce.

6. Line Input - Main Input connection to subwoofer

(preferred).

7. Speaker In Jacks - Main Input connection to

subwoofer when line level, subwoofer, or preamp
output connectors are not available, or when a high
pass filter (set at 150Hz) to main loudspeakers is
desired through the Speaker Output Jacks.

8. Speaker Out Jacks - Connected to main

loudspeakers when the Speaker Input Jacks are used.

Rear Panel

Front Panel

PB10

7

Speaker Connection

When we designed the PB10
powered subwoofers, our goal
was to offer the user the best
possible performance
combined with the most
flexible and complete
installation options. Please look
over the following three
examples to determine which

description best matches your
system and follow the
corresponding hookup
instructions.

To use the binding-post
speaker terminals with bare
wire, unscrew the collar until
the hole through the center

post is visible under the collar.
Insert the bare end of the wire
through the hole in the post,
then screw the collar back
down until the connection is
tight. The holes in the center of
the collars are intended for
banana-type connectors.

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 cor­responding 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 corresponding terminals on
the back of your center, left
and right surround speakers.

Left Front

+ –

Left Front Center

+ – + –

Left Surround

+ –

+ –

Center

+ –

Subwoofer

+ –

Receiver

L

L

HIGH

LEVEL

IN

R

R

L

HIGH

LEVEL

OUT`

R

Right Surround

Right SurroundLeft Surround

Right Front

+ –

Right Front

+ –

+ –

+ –

PB10

8

Dolby Pro Logic (Non-Digital) – Line Level

Use this installation method for
Dolby Pro Logic applications
(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 line­level inputs on the subwoofer.
IMPORTANT: Make sure that
the LFE toggle switch on the
subwoofer is in the “Normal”
position. Do not use the “LFE”
position with Dolby Pro Logic­only processors.

Note: If your receiver or
amplifier only has one
subwoofer output jack,
then you may connect the
subwoofer output on your
receiver/preamplifier to either
the left or right line-level input
on the subwoofer. It makes no
difference which jack you
choose.

Connect each speaker to
the corresponding speaker
terminals on your receiver or
amplifier.

Make sure your receiver or
processor is configured cor­rectly: Make sure that the sub­woofer is configured as “On.”

Note for advanced users: If
your receiver/processor has
a built-in low-pass crossover
filter for the subwoofer output,
then the LFE switch should be
set to the “LFE” position to
bypass the subwoofer’s inter nal
crossover.

RECEIVER

Subwoofer

Out

L R

LEVEL

CROSSOVER
FREQUENCY

LINE LEVEL IN

+ –

Min

LFE NORMAL

0º 180º

PHASE

50Hz

L R

For LFE use L or R

L

HIGH

LEVEL

IN

R

L

HIGH

LEVEL

OUT

R

Max

150Hz

PB10

9

Dolby Digital or DTS (or Other Digital Surround Mode) Connection

Use this installation method for
Dolby Digital, DTS or other
digital surround processors:

IMPORTANT: Make sure that
the LFE toggle switch on the
subwoofer is in the “LFE”
position. Use the line-level
input jacks for the Low­Frequency Effects channel.
Connect these jacks to the LFE
output or subwoofer output on
your receiver or amplifier.

Note: If your receiver or
amplifier only has one
subwoofer output jack,
then you may connect the
subwoofer output on your
receiver/preamplifier to either
the left or right line-level input
on the subwoofer. It makes no
difference which jack you
choose.

Connect each speaker to the
corresponding speaker
terminals on your receiver or
amplifier.

Make sure that you have
configured your surround­sound processor for
“Subwoofer On” or “LFE On.”
The front left, front right, center
and rear speakers should be
set to “Small” or “Large”
depending on their size and
frequency response. Consult
your receiver’s or processor’s
owner’s manual.

LEVEL

Min

Max

LFE NORMAL

RECEIVER/PREAMPLIFIER

Subwoofer
Output/LFE

CROSSOVER
FREQUENCY

LINE LEVEL IN

+ –

0º 180º

PHASE

50Hz

L R

For LFE use L or R

L

HIGH

LEVEL

IN

R

L

HIGH

LEVEL

OUT

R

150Hz

PB10

10

OPERATION

Power

When the unit is plugged in
and the power switch is on and
no signal is received, the LEDs
on the front of the unit will turn
red. When a signal is present,
the LEDs will turn green.
Note: It will take several
minutes for the LEDs to turn
from green to red after the

input signal to the subwoofer is
removed. Due to JBL’s unique,
high-output,

high-efficiency
amplifier design, power
consumption is minimal when
the subwoofer is not receiving
a signal. Of course, the
subwoofer can be turned off,
whenever desired.

NOTE: Early versions of the PB10 did not have a main Power switch.

The subwoofer Level Control
adjusts the volume of the
subwoofer relative to the rest
of the system. Proper level
adjustment depends on several
variables such as room size,

subwoofer placement, type of
main speakers and listener
position. Adjust the subwoofer
level so that the volume of the
bass information is pleasing
to you.

Level Control

Crossover Adjustments

The Crossover Frequency
Control determines the highest
frequency at

which the

subwoofer reproduces

sounds.
If your main speakers can
comfortably reproduce some
low-frequency sounds, set this
control to a lower frequency
setting, between 50Hz – 100Hz.
This will concentrate the
subwoofer’s efforts on the
ultradeep bass sounds required
by today’s films and music. If
you are using smaller bookshelf
speakers that do not extend to
the lower bass frequencies, set
the low-pass crossover control
to a higher setting, between
120Hz – 150Hz. This control is
not used when the LFE switch
is in the “LFE” position.

LEVEL

CROSSOVER
FREQUENCY

PowerBass PB10

LINE LEVEL IN

+ –

ON OFF

POWER

PowerBass PB10

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Min

LFE NORMAL

0º 180º

PHASE

50Hz

L R

For LFE use L or R

HIGH

LEVEL

HIGH

LEVEL

OUT

L

IN

R

L

R

Max

150Hz

120V

60Hz

PB10

11

Phase Control

The Phase Control determines
whether the subwoofer’s
piston-like action moves in and
out in phase with the main
speakers or opposite the main
speakers. There is no correct
or incorrect setting. Proper
phase adjustment depends on
several variables such as
subwoofer placement and
listener position. Adjust the
phase switch to maximize bass

output at the listening position.
Remember, every system,

room and listener is different.
There are no right or wrong
settings; this switch offers the
added flexibility to adjust your
subwoofer for optimum
performance for your specific
listening conditions without
having to move your speakers.
If at some time in the future
you happen to rearrange your

listening room and move your
speakers, you should
experiment with the phase
switch in both positions, and
leave it in the position that
maximizes bass performance.

TROUBLESHOOTING

If you used the high-level
(speaker) inputs and there
is no sound from any of the
speakers:

•

Check that receiver/amplifier
is on and a source is playing.

• Check that powered

subwoofer is plugged into
an active electrical outlet
and is switched on.*

• Check all wires and

connections 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 low (or no) bass
output:

• Make sure the connections to
the left and right “Speaker
Inputs” have the correct
polarity (+ and –).

• Make sure that the
subwoofer is plugged into an
active electrical outlet and
switched on.*

• Adjust the crossover point.

• Flip the Phase Control switch
to the opposite position.

• If you are using a Dolby
Digital/DTS receiver or
processor, make sure that the
subwoofer adjustments on
the receiver/processor are
set up correctly.

• Slowly turn the Level
Control clockwise until you
begin to hear the desired
amount of bass. Make sure
that the subwoofer is
plugged into an active
electrical outlet and switched
on.*

If you used the line-level
inputs and there is no sound
from the subwoofer:

•

Check that receiver/amplifier
is on and a source is playing.

• Check that powered
subwoofer is plugged into an
active electrical outlet and is
switched on.*

• Check all wires and con­nections between receiver/
amplifier and subwoofer.
Make sure all wires are
connected. Make sure none
of the wires are frayed, cut
or punctured.

• Review proper operation of
your receiver/amplifier.

• Slowly turn the Level
Control clockwise until you
begin to hear the desired
amount of bass.

• Make sure that you have
configured your receiver/
processor so that the
subwoofer/LFE output is on.

*NOTE: Early versions of the PB10 did not have a main Power switch.

PB10

12

PB10 TEST SETUP AND PROCEDURE

Min Max

LEVEL

50 Hz 150 Hz

LFE NORMAL

PHASE 1800

CROSSOVER
FREQUENCY

LINE LEVEL IN

LR

FOR LFE USE L or R

L

HIGH

LIVEL

IN

R

L

HIGH

LIVEL

OUT

R

00229

CD PLAYER

PRE AMP

AMPLIFIER

AC VOLT

METER (6V)

LINE LEVEL

PB10 or PB12
UNDER TEST

SPEAKER

LEVEL

FROM

LINE-LEVEL

SOURCE

SPEAKER

OUTPUT

FROM

AMPLIFIER

General Function
UUT = Unit Under Test

1. Connect one line level input cable (RCA) from signal generator to either Right or Left Level input on UUT. VOLUME
control should be full conterclockwise.

2. Tur n on generator, adjust to 100mV, 50Hz.

3. Plug in UUT; Turn Main Power switch ON (present on later version PB10 only). LED’s on the front panel may be
either Red or Green. Turn VOLUME control full clockwise. Low Pass control should be set fully clockwise (150Hz).

4. LED should turn Green; immediately bass response should be heard and felt from port tube opening.

5. Tur n off generator, turn VOLUME control fully counterclockwise, disconnect RCA cables.

6. Connect one pair of speaker cables to either high level input terminal on UUT. Cables should be connected to an
integrated amplifier fed by the signal generator.

7. Tur n on generator and adjust so that speaker level output is 1.0V, 50Hz. Turn VOLUME control full clockwise.

8. Green LED should light, immediate bass response should be heard and felt from the port tube opening.

Sweep Function

1. Follow steps 1-4 above, using a sweep generator as a signal source.

2. Sweep generator from 20Hz to 300Hz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or any other
noises. If any unusual noises are heard, remove driver and test.

Driver Function

1. Remove driver from cabinet; detach + and - wire clips.

2. Check DC resistance of driver; it should be 5.8 ohms.

3. Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier fed by a
signal generator and adjust so that speaker level output is 5.0V.

4. Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises.

PB10

13

Service Bulletin

Service Bulletin JBL2001-03 Rev1 – January 2002 This is considered a Minor repair

To: All JBL Service Centers

Models: PB10, PB12 (Revision 1 only)*

Subject: Unit Will Not Switch to Standby Mode

When the power cord of the PB series subwoofer is plugged into a wall outlet (and for the PB12 only, the power

switch is on), and an audio signal is present, the LED’s on the cabinet face will turn green, indicating the

subwoofer is in the ON mode. With the audio signal removed, it will take 10 - 15 minutes for the LEDs to turn

from green to red, indicating the subwoofer is now in the STANDBY mode. Power consumption is minimal in this

mode.

In the event you receive a PB10 or PB12 subwoofer with the complaint: “The unit will not switch to

standby mode, even when the audio signal is removed” (indicated by the subwoofer’s green LED’s

remaining on), perform the following modification:

1) Set the unit on a padded surface and remove all external cables.

2) On the amplifier faceplate, remove the (10) Phillips mounting screws around the perimeter.

3) Remove the amplifier assembly from the enclosure. If the amp is turned and supported correctly, no other

connectors need to be unplugged.

4) Locate Zener Diode D10 and Resistor R42 (22kΩ). See illustration. These parts must be “swapped”, i.e., R42

soldered into the D10 location, and D10 soldered into the R42 location. VERY IMPORTANT: Observe

polarity on D10 in new location.

5) Replace amplifier; test subwoofer to assure the unit goes into the standby mode 10 - 15 minutes after

removing the Audio input signal.

Mode l S e r i al num be r S ta tus Ac ti on

PB10 *

PB12 *

Al l ser i al number s

af f ect ed

Unit may not switch to Standby mode

Swap locations:

Zener Diode D10,

Resistor R42 (22kΩ).

Observe D10 polarity.

* Revision 1 of the PB10/12: Amplifier faceplate says “Made in Canada”; Amplifier serial number starts with “AM”

Black (or silver) potted, non-serviceable S53/64AMI output module. PB10 only – No Power switch

14

Service Bulletin

Service Bulletin JBL2001-04 Rev2 – February 2003 This is considered a Minor repair

To: All JBL Service Centers

Models: PB10, PB12 (Revision 1 only)*

Subject: Hum, Buzz or “Thumping”

In the event you receive a PB10 or PB12 subwoofer complaint: “There is an audible hum or buzz”, or the
subwoofer “thumps” or “pops” every 10 seconds, then review the conditions below to determine the most
effective solution:

A) Audible Hum with unit on, Green LED is ON, hum disappears completely when the connecting input cables (RCA or

Speaker-Level) are disconnected:

Very long runs of line-level input cables, particularly in parallel with AC power cords, may induce hum in the

audio cables. Check audio cables for defects, broken ground connections, or replace low quality cables. Try
plugging the AC power cord from the subwoofer into a different AC service outlet other than the outlet the rest

B) Mild Audible Hum under all circumstances when power cord is plugged in outlet. Hum level does not change

This may be a mechanical hum caused by the power transformer. Note that a slight hum, within design limits,

C) Loud Hum, under all circumstances. It may be louder when LED’s are Green vs. Red ; it may be affected by the

Reset the digital subwoofer amplifier by unplugging the AC power cord. Wait 30 seconds, then plug the cord

For #B only - If the unit still does not function correctly, then check and replace main Power Supply

Both Value and df should be checked, with a GenRad model 1657 Digibridge or equivalent
Value should be the rating listed below, within this tolerance:
A df value of higher than 15% (.15) should be considered defective.

PB10
PB12

For #C only - If the unit still does not function correctly, then replace Power Amp Module S53/64AMI as per
instructions below: PB10: JBL part# 60301

1) Set the unit on a padded surface and remove all external cables.

2) On the amplifier faceplate, remove the (10) Phillips mounting screws around the perimeter.

3) Remove the amplifier assembly from the enclosure. If the amp is supported correctly, no other connectors need to

4) Locate the Power Amp Module S53/64AMI, see location on the following page. It is the large black or gray

5) Replace the amplifier assembly back into the cabinet; replace the screws.

6) Test the unit and confirm the original problem has been corrected. NOTE: THE PB10/12 REVISION 1 AMPLIFIER

of the audio equipment is plugged into.

whether the LED’s are Red or Green, or input cables are connected or disconnected. Level control adjustments do
not change the hum level.

may be noticeable in a very quiet room, when you are close to the unit. This is acceptable within the PB10/12’s
product and price category to most customers, but not to others. If the mechanical hum is unacceptable to the
customer, then replace Power Transformer. PB10: JBL part# 80135. PB12: JBL part# 80116

position of the Level control. The subwoofer may “thump” or “pop” approximately every 10 seconds.

back in. Repeat this 2-3 times if necessary.

capacitors C1 and C2.

+80/-20 %

4700 µF 50v 105c
2200 µF 100v 105c

be unplugged.

component with a metal case. On the solder side of the circuit board are 28 soldered connections. NOTE: See
special handling instructions for S53/64AMI on the following page.

MUST ALWAYS BE TESTED WITH A WOOFER OR 4 OHM RESISTIVE LOAD.

JBL part# 30706
JBL part# 30710

PB12: JBL part# 60302

JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 [phone]

15

PB10/12 Revision 1 Only

MODEL

Serial numbers are located on the cabinet directly below

PB10

PB12 Hum, Buzz or “Thumping”

* Revision 1 of the PB10/12: Amplifier faceplate says “Made in Canada”; Amplifier serial number starts with “AM”

See serial numbers on Page 3 for factory

Serial Number (120v)

the amplifier faceplate.

modified units

STATUS ACTION

Hum, Buzz or “Thumping”

Replace Power Amp Module S53AMI

for symptoms described in #C only

Replace Power Amp Module S64AMI

for symptoms described in #C only

Black (or silver) potted, non-serviceable S53/64AMI output module. PB10 only – No Power switch

JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 [phone]

16

FACTORY MODIFIED PB-10 SERIAL NUMBERS

1953 23000
7720 23896
8579 23904-23905
10145 23989
10448 23991
10458 23993
11772 23997
11792 24004
11939 24010
13128 24166
13296 24230
14371 24874-24875
14508 24888
14510 24902
14519 24905-24907
14674 24909
14822 24913-24914
15092 24919
15525 24924
15634 24926
15644-15645 24928-24929
15649 24931-24932
15654 24934
15657 24936
15659 24939
15662 24944
15673-15674 24948
15676-15677 24950
15679 24960
15681 24986
15683 24988
15692 24991
15696 24994
15702 24996
15705 24998
16413 25001
17723 25003-25005
17740 25007
18274 25015
19665 25018
20470 25020
21026 25025
21124 25029-25030
21126 25033
21637 25037
22892 25039
22894-22895 25041
22901 25043-25056
22905-22906 25058-25115
22908 25117
22913 25119-25142
22917 25144-25147
22927 25149-25152
22933 25154-25156
25158-25159 25436
25161 25691
25164 25694
25168 25698-25699
25171 25704
25174 25706
25179 25710
25185 25712-25713
25187 25715-25719
25189 25721-25730
25194 25732
25214 25734
25218-25219 25735
25229 25737-25739
25234-25236 25742-25745
25238-25243 25747-25770
25247-25249 25772-25777
25251-25252 25779-25791
25256-25257 25793-25833
25261-25263 25835-25845
25265-25267 25847-25850

25270-25272 25852-25864
25276 25866-25868
25278-25291 25870
25294-25297 25874-25881
25300 25883-25886
25302-25303 25888
25306-25307 25890-25891
25309 25893-25894
25311 25896-26000
25313-25314 26002-26012
25333-25334 26014-26076
25341 26079
25345 26081
25347-25348 26083
25351-25352 26086-26087
25358 26089-26091
25360-25361 26093-26094
25363-25364 26096-26097
2536825369 26099-26101
25371 26103-26104
25375 26106
25384-25386 26108
25391-25392 26110
25394 26112
25396 26115
25399 26118-26119
25402 26121-26124
25406 26126
25408 26128
25416 26130-26131
25419 26133-26134
25421 26136-26137
25426 26139
26141-26150 26522
26152- 26172 26525
26174 26528
26176-26185 26531
26187-26197 26533
26198-26201 26536
26203 26540-26541
26206 26543-26544
26209 26546-26554
26211 26556-26557
26213-26214 26560
26217 26565
26235 26568
26238 26573
26242 26587
26244 26599
26246 26604
26251-26252 26614-26615
26254-26255 26624-26625
26266 26627
26273 26629
26278 26632
26282 26638
26286 26641-26643
26384 26645
26388 26655
26390-26391 26658
26399-26400 26662
26402 26665
26405-26406 26669
26408-26409 26671
26411 26673
26413-26415 26675-26677
26417 26680
26419 26686
26421 26692-26694
26432 26696-26697
26438-26439 26700
26443 26702
26451-26452 26706
26457-26458 26708
26460-26462 26713-26716

26465 26718-26720
26474 26722-26725
26477 26729-26730
26479-26480 26732-26743
26483 26745-26747
26486 26750
26498 26752-26753
26503 26755
26510-26512 26757-26759
26514 26762-26768
26517 26770-26771
26520 26773-26778
26781 27376-27399
26783 27401-27503
26786 27532
26789 27553
26791 27624-27647
26793 27649-27698
26795-26797 27701-27720
26799-26801 27722-27769
26804 27771-27774
26807 27776-27852
26810 27854-27866
26813 27868-27911
26815-26816 27913-27999
26820 28001-28067
26822 28069
26825 28070
26827 28072-28073
26829 28075
26833-26834 28078
26838 28087
26840 28092-28094
26843 28096-28097
26844 28099
26846 28101-28102
26850 28105
26857 28108
26874 28110-28114
26876-26880 28116-28117
26882 28119-28120
26885-26886 28122-28123
26888-26894 28125
26913 28130-28131
26915-26917 28133
26922-26935 28137
26967 28140-28150
26984-27001 28152-28158
27010-27033 28160-28161
27100 28167
27103-27104 28172
27122-27126 28177
27142-27143 28181
27148-27149 28184
27151 28186-28187
27153 28193
27190 28196
27192 28202-28203
27196-27273 28207
27275-27277 28211
27279-27312 28215
27314-27329 28217-28218
27331-27351 28220-28221
27353-27370 28223
27372 28227
27374 28231-28234
28236-28237 29792-29860
28239-28241 29862-29915
28243 29917-30062
28245 30064-30133
28250 30152-30288
28256 30290-30345
28259 30347-30413
28264-28267 30415-30490
28270-28271 30492-30524

28283 30526-30533
28286 30535-30625
28288 30627-30649
28291 30651-30686
28293-28294 30688-30748
28296 30750-30930
28298 30932-31025
28300 31027-31072
28302-28303 31074-31123
28305-28331 31125
28333-28343 31127-31139
28345-28354 31256
28369 31771
28379-28689 35089
28691-28697 35733
28699-28708 36186
28710-28715 37400
28717-28720 39339
28722-28724 80749
28726-28731
28734
28736
28738-28740
28742-28744
28746-28750
28752-28754
28756-28821
28823-29130
29132-29142
29144-29219
29221-29276
29278-29280
29282-29327
29329-29338
29340-29379
29381-29389
29391-29451
29453-29455
29457
29459-29528
29530-29531
29533-29605
29607-29624
29626-29634
29636-29790

JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 [phone]

TECH TIPS

Troubleshooting tips and solutions to common service problems

For models: PB10, PB12 (Revision 2) * TIP# JBLTT2003-04

Subject: Replacing MOSFETS Q18, Q22

In the event you need to replace MOSFET transistors Q18 or Q22 as part of a repair, it is important to use

ONLY the JBL part# FE106401110 or only the brands: International Rectifier, or Fairchild.

Replace both

Do NOT mix & match these components from different manufacturers, or batches. They should be

identical.

Q18 and Q22 MOSFET’s in the circuit, even if only one seems to be damaged.

* Late version PB10 or PB12 subwoofers (Revision 2 in the service manual) can be identified by:

• Amplifier serial number starts with “HA”

• Output transistors in the open, on a large black heatsink

• Large plastic cup enclosing the rear of the amp assembly

• Main PCB, bottom, solder-side contains all SMD devices

17

PB10

18

Exploded and Packaging Views

(IMAGE REDUCED)

1

5

9

4

2

6

7

8

3

(Rev2 has
1pc. Foam
per side)

101

MECHANICAL & PACKING PARTS LIST

Item # Descript ion Qty Revision 1 Part# Revision 2 Part#

1

10" Woofer (DCR = 5.8 Ω)

2 Foot 4 203410 336486-001
3 Outer Carton 1 203420 338130-001
4 Owner’s Manual 120V 1 203430 338129-001

Survey Card 1 n/a 331384-001

Warranty Card 1 n/a 331994-001
5 PB10 Amplifier Complete 1 Not For Sale Not For Sale
6 Foot Screw 4 203411 763-31110-40
7 Foam corners (Top Corners) 4 203460 n/a
8 Foam corners (Bottom Corners) 4 203470 n/a

7 & 8 Foam End Pad (Top & Bottom) 2 n/a 338132-001

9 Port tube 1 Not For Sale 336804-001

10 Logo Badge 1 336485-001 336485-001

LED Ass’y for Logo Badge 1 338125-001 338125-001

Identification Of PB10 Revisions 1 and 2 can be found on Page 2.

1 203400 338127-001

PB10

19

Amplifier Exploded View (Revision 1 Only)

LEGEND

1 Dual RCA jack 108324
2 Power Transformer 80135
3 Level Pot 40402
4 Low Pass Filter Pot 40707
5 Fuse Clips (2) 70323
6 1.25A SLO-BLO Fuse (3ag) 80114

1

5

6

2

3

4

00225

PB10

20

Amplifier Faceplate/Access

CROSSOVER
FREQUENCY

LEVEL

LINE LEVEL IN

PHASE

Min

Max

L

R

L R

For LFE use L or R

LFE NORMAL

PowerBass PB10

REMOVE THESE TWO SCREWS

TO REMOVE REAR COVER

AND ACCESS AMPLIFIER

LONGER SCREW HERE

PowerBass PB10

HIGH

LEVEL

IN

L

R

POWER

HIGH

LEVEL

OUT

+ –

120V
60Hz

50Hz

0º 180º

150Hz

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

ON OFF

1

2

10

5

6

4

7

8

9

3

MECHANICAL & PACKING PARTS LIST

Item # Description Qty Revision 1 Part# Revision 2 Part#

1 Level Knob 1 70313 061-020000-000
2 LFE Defeat Switch 1 70150 074-030002-000
3 PB10 faceplate 1 70325 n/a
4 HI LEVEL Input/Output Jacks 4 108116 072-060170-000
5 Phase Switch 1 70150 074-030002-000
6Crossover Frequency Knob 1 70313 061-020000-000
7 Strain Relief Plug 1 70305 061-314002-000
8 Power Cord 1 80105 083-041802-009
9 Power Switch 1 n/a 074-020018-000

10 RCA Input jacks 1 108324 072-010007-000

Identification Of PB10 Revisions 1 and 2 can be found on Page 2.

PB10

21

Integrated Circuit Diagrams (Revision 1 Only)

0

+6V 15

16

17

V+

1 +6V

2

V+3

18

4

O/P

19 5

O/P

20

6

V- V-

21 7

22

8

SD 24

+15V 23 9 +15V

10 SD

FR 25 11 FR

I/P 26 12 I/P

GND 27 13 GND

-15V 28 14 -15V

00228

NOTE: THE FOLLOWING PROCEDURES MUST BE
FOLLOWED WHEN INSTALLING NEW S53AMI/S64AMI AMP
MODULES:

FAILURE TO FOLLOW ONE OR MORE OF THESE STEPS
MAY RESULT IN THE INSTANT DESTRUCTION OF THE
MODULE WHEN POWERED UP.

1. Align white indent marker on Amp Module with indent
marker on main PCB; alternately observe position of label
on top of the Module; incorrectly replacing the Module
180° in the PCB slot will result in its destruction.

2. All AC powered test instruments (meters, oscilloscopes,
etc.) must have a floating ground, i.e., be connected to
an isolation transformer.

3. Align and position the Amp Module before soldering.

4. Attach the Amp Module with the mounting screws before
soldering or powering up.

5. Use only rosin-core or non-acid core solder; thoroughly
de-flux the surfaces after soldering.

If the new S53AMI/S64AMI Amp Module has larger mounting
hole(s) in the case, and the stock screws no longer will fit,
and screws of the proper type cannot be obtained locally
order:

(2) part# 60301S (screws)
(2) part# 60301N (nuts)

S53AMI/S64AMI - Power Amp Module SAFETY PART

NOTE: THE PB10/12 REVISION 1 AMPLIFIER MUST ALWAYS BE TESTED

WITH A WOOFER OR 4-OHM RESISTIVE LOAD.

LM324, TLO64, U1, U2

N-Chan JFET Q1

D

S

G

MPSA56, Q10, Q11

2

Base

1

2

3

3 Collector

1 Emitter

2N4401, Q12

2

Base

1

2

3

3 Collector

1 Emitter

0227

PB10

22

Integrated Circuit Diagrams (Revision 2 Only)

2N5401
Q1

3 Collector

2

Base

1

2

3

1 Emitter

MPSW06RLRA,
MPSW56RLRAMPQ,
MPS2222ARLRA,
2N2907A, 2N5551,
Q2, 16, 3, 21, 19, 23, 17

3 Collector

2

Base

1

2

3

1 Emitter

OPAMP, QUAD
TL074CDR
U2, 3

BEVEL

OPAMP, DUAL
TL072CDR SO-8,
NJM4558M-TE3
U5, 6, 4

MOSFET IRF640
Q18, 22

1. G

2. D

3. S

3

12

TIP31C
Q4

MMBT3904LTI SOT23,
MMBT3906LTI SOT23,
DTC114EK SMT3,
MMBT5401 LTI,
MMBT5551 LTI
Q11, 14, 13, 5, 8, 9, 6, 10,
12, 15, 7, 20, 24, 26, 25

IR2111 HALF-BRIDGE
DRIVER
U7

BC

E

PB10

23

PB10 Testing Procedure (Revision 1 Only)

A. Power Amp Section

Resistance

Check

2. Power Up LED RED

With a 5mV signal to Low level input, LED should change to GREEN

-Voltage measurements (DVM)

LED

RED 0Vrms 14VDC

GREEN 12Vrms -14VDC

3. D.C. Operation

-Voltage measurements (DVM) on Power Amp Module

Resistance from O/P of the module to GND should be >1M Ω (NO LOAD)

Resistance from V+ of the module to V- of the module should read >4k Ω
Resistance from V+ of the module to O/P of the module should read >1MΩ
Resistance from V- of the module to O/P of the module should read >1M Ω

OP AMP

P-U1(1) P-U1(7)

Between +6V V+ O/P V- +15V S/D FR I/P GND -15V

And This

Point

Get this

Reading

4. Check Switching Frequency

• Oscilloscope - Use scope (EITHER USES AN ISOLATION TRANSFORMER OR

ATTACHES THE PROBE TIP TO SPK- and REFERENCE LEAD TO SPK+)

• A 10Mv signal may need from the input to trigger the Switch frequency turn on

• Reading 100kHz +/-10%,1Vpp

B. Pre Amp Section

Low Level Input Sensitivity

-Set up Turn level, Low-Pass Pot Fully CW and LFE switch off

V- GND GND GND GND V- GND GND GND

+5.75V +45.7v 0V -45.7V +15.5V +4.75V 0V 0V 0V

Generator Set at 100mV@50Hz

Signal to Low level input

GND

-15.5V

PB10

24

PB10 Testing Procedure (Cont.) (Revision 1 Only)

- Voltage measurements

OP AMP

U1(7) U2(7) U1(1) U2(1) U1(14) U2(14) U2(8) PU1(14) PU1(8)

180mV 266mV 325mV 404mV 451mV 451mV 1.33V 6.37V 5.72V 15.3V

2. High Level Input Sensitivity

-Set up Turn level, Lo Pass Pot Fully CW and LFE switch off

Set Generator at 1.09V@50Hz

Signal to High level input

-Voltage measurements 15.3V at speaker output

3. Low-Pass

-Set up Set Generator at 100 mV@100Hz

Signal to Low level input

Measure voltage at speaker output

-Voltage measurement

Low-Pass Pot Setting Output

CW 11.4V

CCW 2.19V

SPEAKER

O/P

4. LFE

-Set up Set Generator at 100mV@200Hz

Signal to Low level input

Measure voltage at speaker output

LFE switch Setting Output

OFF 2.96V

ON 8.40V

See flow chart next page for diagnostics.

PB10

25

PB10 Testing Procedure (Cont.) (Revision 1 Only)

PB10 POWER MODULE TESTING FLOW CHART

CAUTION : MODULE OUTPUT IS FLOATING AND IS NOT PROTECTED AGAINST A SHORT

TO GROUND. ALL TEST INSTRUMENTS CONNECTED TO THE OUTPUT MUST

BE FLOATING. ATTACH THE SCOPE PROBE TIP TO SPK - and REFERENCE

LEAD TO SPK+.

(A 10mV signal may need from the input to trigger the Switch turn on)

START

Resistance check

(no load)

between V+ V-,

V+ O/P,V- O/P

and O/P to GND

is > 10K

no

no

OK

yes

yes

Power up with no

signal input

LED RED

Replace

Module

Check V+; V-;

+/-15V voltage

at the module

OK

Check 6V at the

module wrt V-

=5.75V

Check

transformer,

CMC, rectifier,

C1, C2, D1,

D2, R1(A,B,C),

R2(A,B,C)

no

no

OK

yes

yes

Check input of

module wrt GND

= 0V D.C.

no

no

OK

yes

yes

Use scope to

check switching

frequency from

the load 100KHz

+/-10% , ~1Vpp

no

no

OK

yes

Check fuse

transformer,

CMC, rectifier,

C1 and C2

Check C32 and

Pre-AMP

OK

Check S/D volt-

age at the module

wrt V- =5.1V

OK

Use scope to

check O/P at

module wrt GND

80Vpp square

wave shown

OK

Check D5,D6,

R6,R7(A,B,C)

Check D3,D4,

R3, Q10, Q11,

Q12 and SCP

yes

MODULE OK

END

Check L1, L2,

C10, C11

PB10

26

PB10 Testing Procedure (Cont.) (Revision 2 Only)

A. Power Amp Section

Resistance

Check

Resistance from S+ (SPK O/P) to GND should be >1M Ω (NO LOAD)

Resistance from V+ (C6 P+) to V- (C8 P-) gradually Fully CHARGED should read >10k Ω
Resistance from V+ (C6 P+) to S+ (SPK O/P) should read >1MΩ
Resistance from V- (C8 P-) to S+ (SPK O/P) should read >1M Ω

2. Power Up LED RED

With a 5mV signal to Low level input, LED should change to GREEN

-Voltage measurements (DVM)

OP AMP

LED

P-U4(1) P-U4(7)

RED 0Vrms 8VDC

GREEN 6.3Vrms -10.7VDC

3. D.C. Operation

-Voltage measurements (DVM) on CLASS D POWER AMP

Between V+ Q4(E) Q1(C)

And This

Point

Get this

Reading

GND V- GND GND GND GND GND GND GND GND

45.9V 0V -45.9V 0V -45.9V -45.7V -45.5V 0V 0V 4.7V

Q10(C)

U7(1) U7(2) U7(4) U7(6) U7(7) U7(8)

4. Check Switching Frequency

• Oscilloscope - USE THE PROBE TIP TO U6(7) TO GND

• Reading 100kHz +/-10%,22Vp-p

B. Pre Amp Section

Line Level Input Sensitivity

-Set up Turn level, X’OVER FREQ POT Fully CW and LFE switch off

Generator Set at 100mV@50Hz

Signal to Line level input

PB10

27

PB10 Testing Procedure (Cont.) (Revision 2 Only)

- Voltage measurements

OP AMP

U2(1) U2(14) U2(8) U3(7) U3(1) U3(14) U3(8) U5(7) U5(1)

133.6mV 200.2mV 245.9mV 314.8mV 314.9mV 350mV 1.67V 1.452V 2.098V 15.3V

2. High Level Input Sensitivity

-Set up Turn level, X’OVER FREQ POT Fully CW and LFE switch off

Set Generator at 1.15V@50Hz

Signal to High level input

-Voltage measurements 15.3V at speaker output

3. Low-Pass

-Set up Set Generator at 100 mV@100Hz

Signal to

Measure voltage at S+ speaker output

-Voltage measurement

X’OVER FREQ. Setting Output

CW 10.72V

CCW 2.165V

Line level input

SPEAKER

O/P

4. LFE

-Set up Set Generator at 100mV@200Hz

Signal to

Measure voltage at S+ speaker output

LFE switch Setting Output

Normal 2.9V

LFE 7.62V

See flow chart next page for diagnostics.

Line level input

PB10

28

PB10 Testing Procedure (Cont.) (Revision 2 Only)

PB10 POWER MODULE TESTING FLOW CHART - REVISION 2 ONLY

CAUTION : SPEAKER OUTPUT IS FLOATING AND IS NOT PROTECTED AGAINST A SHORT

TO GROUND. ALL TEST INSTRUMENTS CONNECTED TO THE OUTPUT MUST

BE FLOATING. ATTACH THE SCOPE PROBE TIP TO S - and REFERENCE

LEAD TO S+.

(A 10mV signal may need from the input to trigger the Switch turn on)

START

Resistance check

(no load)

between V+ V-,

V+ O/P,V- O/P

and O/P to GND

is > 10K

no

no

OK

yes

Replace

Q18,Q22

yes

Power up with no

signal input

LED RED

Check +/-15V-MOD

+/-15V voltage at

U 6(8),U6(4)

OK

I/P:10mv/50HZ

Check +15V/SW

Q4(E) TO V-

Check

FB1,FB2,C45,

C50,C60,C63,

R81,R82

no

no

OK

yes

yes

Discharge C37,

Check fuse

transformer, L4,

rectifier, C6 and C8

OK

Check

Check Q4(E)

TO V-

= 0V D.C.

U7(1) = -33V

no

no

OK

yes

yes

Check

MUTE(+8V) and

Q24,Q25,Q26

OK

Use scope to

Use scope to check

switching

frequency U6(7)

100KHz

check O/P U7(6)

and GND

90Vp-p square

wave shown

+/-10% , ~22Vp-p

no

OK

no

OK

yes

yes

Check

L2,L3,C71,C72,

CLASS D AMP OK

C73,C74

Check

MUTE(-10.7V),

And

Q24,Q25,Q26

Check

U7,Q16,Q17,

Q20,Q21,R87,

D26,D35,C64

29

PB10 Block Diagram Revision 2 Only

A

B

C

D

Rin

Lin

Rout

Lout

Line Level
Input

1

SPEAKER LEVEL

INPUT

2

3

4

5

RevNo Revision note

6

7

Date Signature

8

Checked

A

PHASE CTRL
SWITCH

DIF. AMP

SUMMI NG AMP

VOLUME CTRL

SIGNAL SENSE

SIGNAL SENEING

MUTE

ATO

* FUSE

HPF

18dB/Octave

DC OFFSET
PROTECTION

THERMAL
PROTECTION

CURRENT
PROTECTION

LINEAR
POWER SUPPLY

HPF

12dB/Octave

MUTE

CLASS D
AMPLIFIER

12dB/Octave

LIMITER /
LPF

LPF

OUTPUT-RELAY

LPF

Variable

12dB/Octave

SUMMI NG AMP

B

LFE

NORMAL

C

D

4 OHMS

EXTERNAL LED INDICATORS

E

CONTROLLED
REGULATOR

+15V SW

E

MUTE

NOTE :
120 VAC T1.25A-250V

F

230 VAC T0.8A-250V

1

2

3

6

7

8

F

PB10

30

PB10 Electrical Parts List (Revision 1 Only)

PB10 POWER AMP section of PCB Version 6.3.

Part # Ref. Designator Description

Semiconductors

60301 MODULE S53 S53AMI amp module
60102 U1 TLO64 Quad OpAmp
50100 BR RECT RS604 6AMP
50105 D1 1N4744A 15V 1w Zener
50112 D10 1N5242B 12V .5w Zener
50104 D11 1N4148 Sig Diode
50112 D12 1N5242B 12V .5w Zener
50104 D13 1N4148 Sig Diode
50104 D14 1N4148 Sig Diode
50105 D2 1N4744A 15V 1w Zener
50101 D3 1N5256B 30V .5w Zener
50104 D4 1N4148 Sig Diode
50113 D5 1N4735A 6.2V 1W
50107 D6 1N5234B 6.2V .5w Zener
50104 D7 1N4148 Sig Diode
50104 D8 1N4148 Sig Diode
60157 Q1 2N5457 25V N-chnl FET
60154 Q10 MPSA56 120V PNP 600mA
60154 Q11 MPSA56 120V PNP 600mA
60156 Q12 2N4401 40V NPN 600mA

Capacitors

30706 C1 4700uF 50V +80 / -20 Electrolytic 105C
30712 C10 10uF 100V 0.2 BP/NP Electr DF<.1
30502 C11 100nF 50V 0.2 mono ceramic
30706 C2 4700uF 50V +80 / -20 Electrolytic 105C

C20 NOT USED
30502 C21 100nF 50V 0.2 mono ceramic
30502 C22 100nF 50V 0.2 mono ceramic
30526 C24 220nF 50V 0.1 mono ceramic
30529 C25 1n5F 50V 0.1 mono ceramic
30508 C26 10nF 50V 0.1 mono ceramic
30513 C27 3n3F 50V 0.1 mono ceramic
30502 C3 100nF 50V 0.2 mono ceramic
30714 C32 10uF 35V +80/-20 Electrolytic
30715 C40 10uF 16V +80/-20 Electrolytic
30716 C41 1uF 16V +80/-20 Electrolytic
30717 C42 100uF 16V +80/-20 Electrolytic
30702 C6 100nF 50V 0.2 mono ceramic
30505 C7A 100nF 100V 0.2 mono ceramic or film
30505 C7B 100nF 100V 0.2 mono ceramic or film

CW NOT USED

CZ NOT USED

PB10

31

PB10 Electrical Parts List (Cont.) (Revision 1 Only)

PB10 POWER AMP section of PCB Version 6.3.

Part # Ref. Designator Description

Resistors

R100 NOT USED
40105 R10A 0.1 ohms .5W 0.05 metal
40105 R10B 0.1 ohms .5W 0.05 metal
40105 R10C 0.1 ohms .5W 0.05 metal
40420 R11 1k .25W 0.05 carbon
40420 R12 1k .25W 0.05 carbon
40417 R13 47k .25W 0.05 carbon
40718 R14 3k3 .25W 0.05 carbon
40406 R15 100k .25W 0.05 carbon
40719 R1A 2k2 1W 0.05 metal
40719 R1B 2k2 1W 0.05 metal
40719 R1C 2k2 1W 0.05 metal
40405 R21 4K7 .25W 0.05 carbon
40720 R22 42K2 .25W 0.01 metal
40721 R23 237k .25W 0.01 metal

R24 NOT USED

R25 NOT USED
40722 R26 6k8 .25W 0.05 carbon
40723 R27 2k2 2W 0.05 metal
40110 R28 732 ohms 0.5W 0.01 metal
40110 R29 732 ohms 0.5W 0.01 metal
40719 R2A 2k2 1W 0.05 metal
40719 R2B 2k2 1W 0.05 metal
40719 R2C 2k2 1W 0.05 metal
40702 R3 6M8 .25W 0.05 carbon
40723 R30 2k2 2W 0.05 metal
40417 R31 47k .25W 0.05 carbon
40417 R32 47k .25W 0.05 carbon
40427 R33 23k7 .25W 0.01 metal
40724 R34 8k87 .25W 0.01 metal
40725 R4 15k 0.5W 0.01 metal
40420 R40 1k .25W 0.05 carbon
40701 R41 1000k .25W 0.05 carbon
40409 R42 10k .25W 0.05 carbon
40701 R43 1000k .25W 0.05 carbon
40406 R44 100k .25W 0.05 carbon
40415 R45 470K .25W 0.05 carbon
40701 R46 1000k .25W 0.05 carbon
40409 R47 10k .25W 0.05 carbon
40409 R48 10k .25W 0.05 carbon
40726 R49 15k .25W 0.05 carbon
40412 R5 33k2 .25W 0.01 metal
40427 R50 2k2 .25W 0.05 carbon
40111 R6 47 ohms .25W 0.05 carbon
40728 R7A 5k6 1W 0.05 metal
40728 R7B 5k6 1W 0.05 metal
40728 R7C 5k6 1W 0.05 metal
40729 R8A 4k7 1W 0.05 metal

PB10

32

PB10 Electrical Parts List (Cont.) (Revision 1 Only)

PB10 POWER AMP section of PCB Version 6.3.

Part # Ref. Designator Description

40729 R8B 4k7 1W 0.05 metal

R9 NOT USED

Miscellaneous

80101 L1 110uH Gapped E-core choke
80102 L2 2.2uH 2.2uH ferrite bead

L3 0-R Jumper

L4 0-R Jumper
80100 CMC 2m2H 5 Amp 0.05 2.2mH choke
108326 LED Harness MOLEX 2 FEMALE
80135 TRX MCI 5024 100VA Conc Wnd Power Transformer
50106 On Har ness 2 Clr LED T 1 3/4 Type
50106 On Har ness 2 Clr LED T 1 3/4 Type
70322 LED PCB socket Male PCB LED socket
80114 3AG FUSE 1.25A SloBlo Glass
70324 0.187" Tabs 7 0.187" PCB fastons
70323 PCB-mount Fuse Holders 2 PCB fuse clips
70325 PB10 faceplate PB10 faceplate
80105 Power cord Power cord
70305 Strain relief Strain relief

PB10 PREAMP section of PCB Version 6.3.

Part # Ref. Designator Description

Semiconductors

60100 U1 LM324 LM324 op amp
60100 U2 LM324 LM324 op amp

Capacitors

Film Caps may be used in any position EXCEPT C1, C2
30707 C1 200uF 50V 0.2 BP Electrolytic
30526 C10 220nF 50V 0.1 mono ceramic
30514 C11 47nF 50V 0.1 mono ceramic
30504 C12 100n 50V 0.1 mono ceramic
30514 C13 47n 50V 0.1 mono ceramic
30528 C16 220nF 50V 0.05 film
30528 C17 220nF 50V 0.05 film
30100 C18 330pF 50V 0.2 mono ceramic
30100 C19 330pF 50V 0.2 mono ceramic
30707 C2 200uF 50V 0.2 BP Electrolytic
30519 C20 100nF 50V 0.2 mono ceramic
30519 C21 100nF 50V 0.2 mono ceramic
30519 C22 100nF 50V 0.2 mono ceramic
30519 C23 100nF 50V 0.2 mono ceramic
30101 C3 220pF 50V 0.2 mono ceramic

C30 NOT USED
30101 C4 220pF 50V 0.2 mono ceramic

PB10

33

PB10 Electrical Parts List (Cont.) (Revision 1 Only)

PB10 PREAMP section of PCB Version 6.3.

Part # Ref. Designator Description

30101 C5 220pF 50V 0.2 mono ceramic
30101 C6 220p 50V 0.2 mono ceramic
30527 C7 330nF 50V 0.05 film
30527 C8 330nF 50V 0.05 film
30527 C9 330nF 50V 0.05 film

Resistors

40405 R1 4k7 .25W 0.05 carbon
40409 R10 10k .25W 0.05 carbon
40708 R11 57k6 .25W 0.01 carbon
40454 R12 45k3 .25W 0.01 metal
40412 R13 33k2 .25W 0.01 metal
40709 R14 68k1 .25W 0.01 metal
40710 R15 11k3 .25W 0.01 metal
40711 R16 1k3 .25W 0.01 metal
40712 R17 243k .25W 0.01 metal
40441 R18 13k7 .25W 0.01 metal
40441 R19 13k7 .25W 0.01 metal
40405 R2 4k7 .25W 0.05 carbon
40713 R20 5k6 .25W 0.05 carbon

R21 0r Jumper
40713 R22 5k6 .25W 0.05 carbon

R23 0r Jumper
40109 R24 604 ohms .25W 0.01 metal
40412 R25 33k2 .25W 0.01 metal
40405 R26 4k7 .25W 0.01 metal
40109 R27 604 ohms .25W 0.01 metal
40412 R28 33k2 .25W 0.01 metal
40406 R3 100k .25W 0.05 carbon
40714 R30 14k .25W 0.01 metal
40715 R33 9k09 .25W 0.01 metal
40716 R34 60k4 .25W 0.01 metal
40451 R35 137k .25W 0.01 metal
40406 R4 100k .25W 0.05 carbon
40406 R5 100k .25W 0.05 carbon
40406 R6 100k .25W 0.05 carbon
40717 R8 2k7 .25W 0.05 carbon
40717 R9 2k7 .25W 0.05 carbon

Miscellaneous

108116 HI LEVEL I/O OUT Binding Post
108116 HI LEVEL I/O IN Binding Post
108324 RCA CONNECTOR DUAL RCA-yellow
40402 LEVEL 5k POT 0.2 Log (A) Pot
40707 Crossover CONTROL 20k POT 0.2 Lin (B) Pot.
70150 LoPass Defeat Sw. SW SPDT mini-Toggle
70150 Phase Switch SW SPDT mini-Toggle

PB10

34

Resistors

40719

R1A 2k2 1W 5% metal SAFETY

40719

R1B 2k2 1W 5% metal SAFETY

40719

R1C 2k2 1W 5% metal SAFETY

40719

R2A 2k2 1W 5% metal SAFETY

40719

R2B 2k2 1W 5% metal SAFETY

40719

R2C 2k2 1W 5% metal SAFETY

40702

R3 6M8 .25W 5% carbon

40725

R4 15k 0.5W 5% metal SAFETY

40412

R5 33k2 .25W 1% metal

40111

R6 47 ohms .25W 5% carbon

40728

R7A 5k6 1W 5% metal SAFETY

40728

R7B 5k6 1W 5% metal SAFETY

40728

R7C 5k6 1W 5% metal SAFETY

40729

R8A 4k7 1W 5% metal SAFETY

40729

R8B 4k7 1W 5% metal SAFETY
R9 NOT USED

40105

R10A 0.1 ohms .5W 5% metal

40105

R10B 0.1 ohms .5W 5% metal

40105

R10C 0.1 ohms .5W 5% metal

40420

R11 1k .25W 5% carbon

40420

R12 1k .25W 5% carbon

40417

R13 47k .25W 5% carbon

40718

R14 3k3 .25W 5% carbon

40406

R15 100k .25W 5% carbon

40405

R21 4K7 .25W 5% carbon

40720

R22 42K2 .25W 1% metal

40721

R23 237k .25W 1% metal
R24 NOT USED
R25 NOT USED

40722

R26 6k8 .25W 5% carbon

40723

R27 2k2 2W 5% metal SAFETY

40110

R28 732 ohms 0.5W 1% metal

40110

R29 732 ohms 0.5W 1% metal

40723

R30 2k2 2W 5% metal SAFETY

40417

R31 47k .25W 5% carbon

40417

R32 47k .25W 5% carbon

40427

R33 23k7 .25W 1% metal

40724

R34 8k87 .25W 1% metal

40407

R35 220K .25W 5% carbon

40420

R40 1k .25W 5% carbon

40701

R41 1000k .25W 5% carbon

40409

R42 10k .25W 5% carbon

40701

R43 1000k .25W 5% carbon

40406

R44 100k .25W 5% carbon

40415

R45 470K .25W 5% carbon

40701

R46 1000k .25W 5% carbon

40409

R47 10k .25W 5% carbon

40405

R48 4.7k .25W 5% carbon

40405

R49 4.7k .25W 5% carbon

40427

R50 2k2 .25W 5% carbon

PB10 Electrical Parts List (Cont.) (Revision 1 Only)

PB10 PREAMP section of PCB Version 7.2.

Part # Designator Description

PB10

35

Capacitors

30706

C1 4700uF 50V +80 / -20 Electrolytic 105C SAFETY

30706

C2 4700uF 50V +80 / -20 Electrolytic 105C

30502

C3 100nF 50V 20% mono ceramic

30702

C6 100nF 50V 20% mono ceramic

30505

C7A 100nF 100V 20% mono ceramic or film SAFETY

30505

C7B 100nF 100V 20% mono ceramic or film SAFETY

30712

C10 10uF 100V 20% BP/NP Electr DF<.1

30502

C11 100nF 50V 20% mono ceramic
C20 NOT USED

30502

C21 100nF 50V 20% mono ceramic

30502

C22 100nF 50V 20% mono ceramic

30526

C24 220nF 50V 10% mono ceramic

30529

C25 1n5F 50V 10% mono ceramic

30508

C26 10nF 50V 10% mono ceramic

30513

C27 3n3F 50V 10% mono ceramic

30714

C32 10uF 35V +80/-20 Electrolytic

30715

C40 10uF 16V +80/-20 Electrolytic

30716

C41 1uF 16V +80/-20 Electrolytic

30717

C42 100uF 16V +80/-20 Electrolytic
CW NOT USED
CZ NOT USED

Semiconductors

50105

D1 1N4744A 15V 1w Zener

50105

D2 1N4744A 15V 1w Zener

50101

D3 1N5256B 30V .5w Zener

50104

D4 1N4148 5% Sig Diode

50113

D5 1N4735A 6.2V 1W

50107

D6 1N5234B 6.2V .5w Zener

50104

D7 1N4148 5% Sig Diode

50104

D8 1N4148 5% Sig Diode

50112

D10 1N5242B 12V 5% .5w Zener

50104

D11 1N4148 Sig Diode

50112

D12 1N5242B 12V .5w Zener

50104

D13 1N4148 Sig Diode

50104

D14 1N4148 Sig Diode

60157

Q1 2N5457 25V N-chnl FET

60154

Q10 MPSA56 120V PNP 600mA

60154

Q11 MPSA56 120V PNP 600mA

60156

Q12 2N4401 40V NPN 600mA

50100

DIODE BRIDGE RS604 6AMP * SAFETY

60102

U1 TLO64 Quad OpAmp

60301

MODULE S53 S53AMI amp module SAFETY

Miscellaneous

70322

LED 3 Molex 2 Header Male Connector

108326

LED Harness Molex 2 Socket Female Connector

50106

On Harness Bi-Color LED 2 Legged

T 1-

3/4, white diff. Type

50106

On Harness Bi-Color LED 2 Legged

T 1-

3/4, white diff. Type

80101

L1 110uH Gapped E-core choke

PB10 Electrical Parts List (Cont.)

PB10 PREAMP section of PCB Version 7.2.

Part # Designator Description

PB10

36

80102

L2 2.2uH 2.2uH ferrite bead
L3 0-R Jumper
L4 0-R Jumper

80100

CMC 2m2H 5 Amp 5% 2.2mH choke SAFETY

70323

3AG TYPE 3AG PC CLIP 2 PCB-mount fuse clips SAFETY

80114

3AG FUSE 1.25A SloBlo Glass SAFETY

70324

0.187" Tabs 6 0.187" PCB fastons

70328

0.250" Tabs 1 0.250" PCB fastons

70325

PB10 faceplate PB10 faceplate

80105

Power cord Power cord SAFETY

70305

Strain relief Strain relief SAFETY

80135

TRX MCI 5024 100VA Power Transformer SAFETY

PREAMP section of PCB Version 7.2

Part

#

Ref. Designator Description

Resistors

40405

R1 4k7 .25W 5% carbon

40405

R2 4k7 .25W 5% carbon

40406

R3 100k .25W 5% carbon

40406

R4 100k .25W 5% carbon

40406

R5 100k .25W 5% carbon

40406

R6 100k .25W 5% carbon

40717

R8 2k7 .25W 5% carbon

40717

R9 2k7 .25W 5% carbon

40409

R10 10k .25W 5% carbon

40708

R11 57k6 .25W 1% carbon

40454

R12 45k3 .25W 1% metal

40412

R13 33k2 .25W 1% metal

40709

R14 68k1 .25W 1% metal

40710

R15 11k3 .25W 1% metal

40711

R16 1k3 .25W 1% metal

40712

R17 243k .25W 1% metal

40441

R18 13k7 .25W 1% metal

40441

R19 13k7 .25W 1% metal

40713

R20 5k6 .25W 5% carbon
R21 0r Jumper

40713

R22 5k6 .25W 5% carbon
R23 0r Jumper

40109

R24 604 ohms .25W 1% metal

40412

R25 33k2 .25W 1% metal

40405

R26 4k7 .25W 1% metal

40109

R27 604 ohms .25W 1% metal

40412

R28 33k2 .25W 1% metal

40714

R30 14k .25W 1% metal

40715

R33 9k09 .25W 1% metal

40716

R34 60k4 .25W 1% metal

40451

R35 137k .25W 1% metal

40402

LEVEL 5k POT 20% Log (A) Pot

40707

LOW PASS Dual 20k POT 20% Lin (B) Pot.

PB10 Electrical Parts List (Cont.)

PB10 PREAMP section of PCB Version 7.2.

Part # Designator Description

PB10

37

Capacitors

Film Caps may be used in any position EXCEPT C1, C2

30707

C1 200uF 50V 20% BP Electrolytic

30707

C2 200uF 50V 20% BP Electrolytic

30101

C3 220pF 50V 20% mono ceramic

30101

C4 220pF 50V 20% mono ceramic

30101

C5 220pF 50V 20% mono ceramic

30101

C6 220p 50V 20% mono ceramic

30527

C7 330nF 50V 5% film

30527

C8 330nF 50V 5% film

30527

C9 330nF 50V 5% film

30526

C10 220nF 50V 10% mono ceramic

30514

C11 47nF 50V 10% mono ceramic

30504

C12 100n 50V 10% mono ceramic

30514

C13 47n 50V 10% mono ceramic

30528

C16 220nF 50V 5% film

30528

C17 220nF 50V 5% film

30100

C18 330pF 50V 20% mono ceramic

30100

C19 330pF 50V 20% mono ceramic

30519

C20 100nF 50V 20% mono ceramic

30519

C21 100nF 50V 20% mono ceramic

30519

C22 100nF 50V 20% mono ceramic

30519

C23 100nF 50V 20% mono ceramic
C30 NOT USED

Semiconductors

50104

D50 1N4148 5% Sig Diode

50104

D51 1N4148 5% Sig Diode

50104

D52 1N4148 5% Sig Diode

50104

D53 1N4148 5% Sig Diode

50104

D54 1N4148 5% Sig Diode

50104

D55 1N4148 5% Sig Diode

60100

U1 LM324 LM324 Quad Op Amp

60100

U2 LM324 LM324 Quad Op Amp

Miscellaneous

70150

LP DEFEAT SW SW SPDT mini-Toggle

70150

PHASE SWITCH SW SPDT mini-Toggle

108116

HI LEVEL I/O OUT Binding Post

108116

HI LEVEL I/O IN Binding Post

108324

Li, Ri RCA connector 90 Deg DUAL RCA-yellow

PB10 Electrical Parts List (Cont.)

PB10 PREAMP section of PCB Version 7.2.

Part # Designator Description

PB10

38

PB10 Electrical Parts List (Cont.)

Version 2 Only

Part Number Description Qty Reference designators

Resistors

020-000498-120 Film Resistor 0 ohms 1/4W Jumper 2 R10, 11
021-100401-120 MOF Resistor 1K 1W J 1 R103
021-820303-020 MOF Resistor 820 ohms 3WS J 2 R6, 9
022-500003-020 KNP Resistor 0.05 ohms 3WS J 1 R104
024-100298-120 SMD Resistor 10 ohms 1/8W J 2 R81, 82
024-100398-120 SMD Resistor 100 ohms 1/8W J 1 R62
024-100498-120 SMD Resistor 1K 1/8W J 8 65, 79, 83, 92, 95, 96, 105, 108
024-100598-120 SMD Resistor 10K 1/8W J 30 R2, 17, 19-21, 37, 54, 58, 63,

69, 71-72, 74-75, 84, 88-89,
97, 106, 109, 111, 113-117,

119-120, 123-124
024-100698-120 SMD Resistor 100K 1/8W J 6 R3, 22-25, 112
024-110598-100 SMD Resistor 11K 1/8W F 1 R98
024-113598-100 SMD Resistor 11K3 1/8W F 1 R34
024-120498-120 SMD Resistor 1K2 1/8W J 2 R51, 53
024-130498-100 SMD Resistor 1K3 1/8W F 2 R35, 110
024-137598-120 SMD Resistor 13K7 1/8W F 2 R42, 43
024-137698-100 SMD Resistor 137K 1/8W F 1 R32
024-150498-120 SMD Resistor 1K5 1/8W J 6 R67, 68, 12-15
024-150598-120 SMD Resistor 15K 1/8W J 1 R29
024-200598-120 SMD Resistor 20K 1/8W J 1 R94
024-220398-120 SMD Resistor 220 ohms 1/8W J 1 R90
024-220498-121 SMD Resistor 2K2 1/8W J 3 R1, 87, 61
024-220598-120 SMD Resistor 22K 1/8W J 3 R50, 52, 118
024-220798-120 SMD Resistor 2M2 1/8W J 2 R80, 121
024-237598-120 SMD Resistor 23K7 1/8W F 1 R48
024-237698-100 SMD Resistor 237K 1/8W F 1 R45
024-243698-100 SMD Resistor 243K 1/8W F 1 R36
024-270498-120 SMD Resistor 2K7 1/8W J 2 R64, 73
024-300398-120 SMD Resistor 300 ohms 1/8W J 1 R55
024-300598-120 SMD Resistor 30K 1/8W J 1 R56
024-330498-120 SMD Resistor 3K3 1/8W J 5 R7, 8, 26, 27, 59
024-330598-120 SMD Resistor 33K 1/8W J 3 R4, 5, 122
024-360498-120 SMD Resistor 3K6 1/8W J 1 R28
024-390498-120 SMD Resistor 3K9 1/8W J 1 R93
024-390598-120 SMD Resistor 39K 1/8W J 1 R77
024-430498-100 SMD Resistor 4K3 1/8W F 1 R78
024-453598-100 SMD Resistor 45K3 1/8W F 1 R30
024-470298-120 SMD Resistor 47R 1/8W J 2 R101, 102
024-470398-120 SMD Resistor 470 ohms 1/8W J 3 R76, 99, 100
024-470498-120 SMD Resistor 4K7 1/8W J 2 R85, 86
024-470598-120 SMD Resistor 47K 1/8W J 4 R44, 47, 49, 107
024-470698-120 SMD Resistor 470K 1/8W J 1 R70
024-470798-120 SMD Resistor 4.7M 1/8W J 1 R60
024-560498-120 SMD Resistor 5K6 1/8W J 2 R40, 41
024-604598-100 SMD Resistor 60K4 1/8W F 1 R39
024-620398-120 SMD Resistor 620 ohms 1/8W J 3 R16, 18, 57
024-680498-120 SMD Resistor 6.8K 1/8W J 2 R46, 91

PB10

39

PB10 Electrical Parts List (Cont.)

Version 2 Only

Part Number Description Qty Reference designators

024-680598-120 SMD Resistor 68K 1/8W J 3 R31, 33, 66
024-909498-100 SMD Resistor 9K09 1/8W F 1 R38
026-200595-269 VR2 FREQUENCY POT RD163121R034-20KBx2(EJ) 1 VR2
026-500495-252 VR1 LEVEL POT RK163111R522-5KA (EJ) 1 VR1

Capacitors

031-100244-100 SMD Ceramic Capacitor 0u01/50V K 7 C5, 10, 33, 45, 51, 66, 67
031-100343-100 SMD Capacitor 100pF/50V J 3 C16, 36, 58
031-100344-100 SMD Capacitor 0u1/50V K 16 C11, 42-44, 46-49, 52, 54, 55,

60, 63, 71, 74, 77
031-100364-100 SMD Capacitor 0.1uF/100V K 2 C3, 7
031-150244-100 SMD Capacitor 0u0015/50V K 1 C32
031-220344-100 SMD Capacitor 220pF/50V J 5 C14, 15, 20, 21, 19
031-330444-300 SMD Capacitor 3300pF/50V K 2 C40, 34
031-470244-102 SMD Capacitor 0u047/50V K 2 C62, 59
031-560243-100 SMD Capacitor 56pF/50V J 2 C57, 61
031-560343-102 SMD Capacitor 560pF/50V J 1 C56
032-100464-202 END PE Capacitor 1uF/100V K 2 C70, 70B
033-200645-300 NP Capacitor 200uF/50V M 2 C17, 18
033-470444-270 NPE Capacitor 4u7/50V K 1 C73
033-680464-270 NPE Capacitor 6u8/100V K 1 C72
034-100525-300 Electrolytic Capacitor 10uF/25V M 1 C35
034-100625-300 Electrolytic Capacitor 100uF/25V M 1 C64
034-220525-301 Electrolytic Capacitor 22uF/25V M 6 C39, 50, 53, 41, 4, 9
034-220615-301 Electrolytic Capacitor 220uF/16V M 1 C37
034-330525-300 Electrolytic Capacitor 33uF/25V M 1 C1
034-330615-300 Electrolytic Capacitor 330uF/16V M 2 C12,78
034-470415-301 Electrolytic Capacitor 4u7/50V M 1 C2
034-470615-301 Electrolytic Capacitor 470uF/16V M 1 C65
034-470745-200 Electrolytic Capacitor 4700uF/50V M 2 C6, 8
038-100363-300 MPE Capacitor 0u1/100V J 3 C68, 69, 27
038-220393-300 MPE Capacitor 0u22/63V J 4 C25-26, 29, 31
038-330393-300 MPE Capacitor 0u33/63V J 3 C22, 23, 24
038-470293-300 MPE Capacitor 0u047/63V J 2 C28, 30
039-100390-100 UL Capacitor 0u1/275V 1 CXAC1

Semiconductors

051-000600-100 NPN Transistor MPSW06RLRA 2 Q2, Q16
051-005600-100 NPN Transistor MPSW56RLRA MPQ 1 Q3
051-222200-100 NPN Transistor PN:MPS2222ARLRA 1 Q21
051-290700-100 NPN Transistor 2N2907A 2 Q19, 23
051-540101-000 PNP Transistor 2N5401 1 Q1
051-555100-000 NPN Transistor 2N5551 1 Q17
052-400080-000 Bridge Rectifier PN:RS804 400V,8A 1 BR1
053-211100-000 IC;DIP PN:IR2111 HALF-BRIDGE 1 U7

DRIVER
054-000100-100 SMD DIODE ES1D 200V,1A 5 D5, 26, 29, 33, 38
054-001001-100 SMD Zener Diode 10V SOT-23 DZ23C10 1 D35

PB10

40

PB10 Electrical Parts List (Cont.)

Version 2 Only

Part Number Description Qty Reference designators

054-001500-100 SMD Zener Diode 15V SOT-23 DZ23C15 3 D6, 7, 9
054-007200-100 SMD IC TL072CDR SO-8 (TI) 2 U5, 6

DUAL OP-AMP
054-007400-100 SMD IC PN:TL074CDR (TI) 2 U2, 3

QUAD OP-AMP
054-033904-100 SMD TR (Motorola) MMBT3904LT1 SOT23 6 Q11, 14, 13, 5, 8, 9
054-033906-100 SMD TR (Motorola) MMBT3906LT1 SOT23 4 Q6, 10, 12, 15
054-045580-100 SMD OPA IC NJM4558M-TE3 DMP-8 1 U4

DUAL OP-AMP
054-050600-100 SMD Zener Diode 5.6V SOT-23 DZ23C5V6 3 D24, 36, 37
054-211400-100 SMD NPN Transistor DTC114EK SMT3 1 Q7
054-414803-100 SMD Zener Diode LL4148 24 D1-4, 8, 10-23, 27, 30-31,

34, 39
054-540100-100 SMD PNP Transistor MMBT5401 LT1 3 Q20, 24, 26
054-555100-100 SMD NPN Transistor MMBT5551 LT1 1 Q25
051-003100-000 NPN Transistor TIP31C TO-220 1 Q4
FE1064011100 MOSFET IRF640 TO-220 2 Q18, 22

Miscellaneous

093-205209-300 Fuse 1.25A (2AG) 250V, 5x20mm 1 F1
073-050001-000 Fuse Clip P/N:CFFH1206 2
044-100100-000 SMD Ferrite Bead 600R/100MHz 2 FB1, FB2
041-115001-000 Bead Coil YT-10911 1 L5
043-300101-000 Inductor 30uH YT-10033 1 L2
043-324300-000 Inductor 324uH YT-10778 1 L4
043-560200-000 Inductor 56uH YT-10779 1 L1
043-700101-000 Toroidal Inductor 70uH YT-10682 1 L3
072-010007-000 RCA Housing SCJ-1020 2P(G) WHT,RED 1 CONN1
072-040039-000 Terminal PC205 (t=0.8m/m) T205MA 1 S­072-040064-000 Terminal PC250(t=0.8),T250MA 1 S+
072-040096-000 Terminal (t=0.8mm) PC187(0.8) 7 AC1, AC3, T1, T2,

AC2, SW2, SW4
072-040169-000 Connector 2 PIN JS-1001-2 P:2.5mm 1 CONN3A
072-060170-000 Binding Post B.P. A'ssy 4 BP/IP, BP/OP
074-030002-000 Toggle Switch LFE/NORMAL - PHASE 2 SW5, SW6
074-300018-000 Relay PN:943-1C-48D 1 K1
042-010052-003 X'fmr YT-10615-4 1
061-020000-000 Knob 20 x 15 m/m UL 94V-0 Blk 2
061-314002-000 Strain relief SB4F-2 2
063-010012-000 Clamps holding output TRK-1 4

transistors to heatsink
063-531808-000 Rear plastic cover w/G ABS 1
073-032316-601 Heatsink 70 x 42 x 20 mm 1
074-020018-000 Main Power switch RF1003-BB4-0 1
083-041802-009 Power Cord 120V SPT-2 BLK #18 T187 1
181-911600-161 Output wires #16 AWG UL1007 Blk 1
181-911655-135 Output wires #16 AWG UL1007 Green 1
181-921600-000 Output wires #16 AWG UL1015 Blk 1
181-921699-000 Output wires #16 AWG UL1015 Wht 1

41

PB10 (PCB version 6.3-7.0) (Revision 1 Only)

42

PB10 (PCB version 6.3-7.0) (Revision 1 Only)

43

PB10 (PCB version 6.3-7.0) (Cont.) (Revision 1 Only)

PB10 (PCB version 6.4) Power Amp Only (Revision 1 Only)

44

45

PB10 (PCB version 7.2) (Revision 1 Only)

PB10 (PCB version 7.2) (Revision 1 Only)

46

PB10 (PCB version 7.2) (Revision 1 Only)

47

48

PB10 Revision 1 Schematic Diagrams PREAMP (PCB version 6.3-7.0)

4321

3rd Order Hi-Pass

C8

330nF

R15
11k3

C10

220nF

6

R16

1k3

2

C9

3

330nF

R17

243k

2nd Order LO-PASS

13

14

U1

12

C11

47nF

R20

5k6

D

17

LM324

C

R

L

C18 330pF

C19 330pF

IN

R27

604r

R24

604r

C17

220nF

1

2

3

LEVEL

5k POT

R33

9k09

C16

220nF

60k4

SW SPDT

2

Phase Switch

2nd Order Hi-Pass

2

3

R34

R12

1

45k3

3

R13

33k2

-15V
1

U2

+15V

C23

100nF

R11

R28

33k2

R25

33k2

R10

R6

R5

R4

R3

100k

10k

R8
2k7

R1
4k7

R2
4k7

6

5

C4

220pF

57k6

7

U1

LM324

C3 220pF

+15V

10

U1

9

-15V

R9

2k7

220pF

REMOTE Pot

C6

NOT USED

C20

3
2
1

100nF

220p

8

C5

C21

100nF

2nd Order LO-PASS: (Moved up 1 octave)

DUALRCA

D

C

R In

GND

L In

RCA CONNECTOR

Binding Post

200uF

R

L

OUT

200uF

C1

C2

R14

68k1

6

U2 U1

5

R35
137k

LO PASS CONTROL 1

R18

13k7

C22

100nF

C7

330nF

20k POT

1

3

2

R19

20k POT

13k7

LO PASS CONTROL 2

5

4

B

A

00232-17

7

LED 2

NOT USED

NOT USED

LO PASS CONTROL 3

Led Harness

NOT USED

NOT USED

1 2 34

LED1

1

1

2

2

NOT USED

From PwrAmp

From PwrAmp

11

NOT USED

LO PASS CONTROL 4

0r Jumper
R21

8

R22
5k6

C12

100n

R23

0r Jumper

13

14

U2

12

C13
47n

9

10

12

SW SPDT

1

2

3

LoPass Defeat Sw.

R26

4k7

9

10

Title

B10 PREAMP (6.3pcb)

Tabloid

Date: 20-Apr-2000 Sheet of
File:T:\PB10 sch Folder\..\PB10 preamp Rev5.schDrawn By:

GAIN STAGE

C30

NOT USED

8

U2

LM324

Number RevisionSize

R30
14k

To Pin 11 U1/U2

+15V

-15V

To Pin 4 U1/U2

Un-designated Connector

1

+15V

2

mute

3

GND

4

GND

5

SIG

6

-15V

NOT USED

5

11
MS/LL

B

To/From PWRAMP

A

49

PB10 Revision 1 Schematic Diagrams POWER AMP (PCB version 6.3)

10987654321

LED1/2 Preamp

LED Harness

1
2

MOLEX 2

R13

47k

2N4401

3AG FUSE

1.25A SloBlo

Q12

LED1/2 Preamp

On Harness

2 Clr LED

R14

3k3

L4

0-R Jumper

L3

0-R Jumper

CZ

NOT USED

CW

NOT USED

11

On Harness

2 Clr LED

AC Feed

AC Return

5

MA / LL

SP Neg

SP Pos

F

E

D

C

B

A

NOT USED

R5
33k2

V-

R46

1000k

R45

470K

4

5

7

U1

6

TLO64

11

R47

C3

100nF

CMC

2m2H

10k

Q1

2N5457

L2

2.2uH

C7A 100nF

C7B

100nF

R44
100k

C20

Not Used

V+ LED

1

D13

1N4148

R49
15k

MPSA56

R10A

0.1R

C10

10uF

L1

110uH

Title

D

Date: 20-Apr-2000 Sheet of
File: T:\PB10 sch Folder\..\PB10 pwramp Rev5.schDrawn By:

2

MOLEX 2

R48
10k

SHORT CIRCUIT PROTECT

Q11

R12

1k

Q10

R11

1k

R10B

R10C

0.1R

0.1R

C11

100nF

R15

100k

MCI4932

TRX

B10 PwrAmp (6.3 PCB)

Number RevisionSize

MPSA56

1

F

D7

D8

3

2

1N4148

1N4148

C32

10uF

R28
732R

R29
732R

TLO64

4

1

U1

11

R41

1000k

3x 1W

R7B

R7A

5k6

5k6

R27

2k2

R30

2k2

R8B

4k7

R100

12

13

To U1 Pin 4

C25

1n5F

R23

237k

4

U1

11

-15

TLO64

NOT USED

14

R24

NOT USED

To U1 Pin 11

C24

220nF

R21
4K7

CONNECTOR

R32

47k

R33

23k7

C26
10nF

+15

AV SW

1
2
3

NOT USED

10

9

U1

4

11

R31

47k

TLO64

C40

10uF

R40

1k

R26

6k8

R34

8

8k87

C27

3n3F

R8A

4k7

Un-designated Connector

6

+15V

5

mute

GND

4
3

GND

2

SIG

1

-15V

CONNECTOR

To/From PREAMP

E

D

C

B

A

NOT USED

42K2

R22

R25

NOT USED

00232-18

1 2 3 4 5 6 7 8910

C1

4700uF

C41

1uF

R7C

5k6

C2

SIGNAL LED & AUTO MUTE

1N4148

D14

R50

2k2

C42

D12
1N5242B

C6

D6

1N5234B

100nF

D5

1N4735A

R1A

R1B

R1C

2k2

2k2

2k2

R2A

2k2

100nF

100nF

R4

15k

C21

C22

3x 1W

R9

NOT USED

4700uF

100uF

R2B
2k2

UVLO

1N4148

1N4744A

R6
47R

R43

1000k

1N5256B

D4

6M8

D1

D2

R2C
2k2

D3

R3

1N4744A

D11
1N4148

R42
10k

S53

+6V

V+

O/P

V-

+15V

S/D

FR

I/P

GND

-15V

MODULE

V+

RS604

1N5242B

D10

BR RECT

50

PB10 Revision 1 Schematic Diagrams POWER AMP (PCB version 7.0)

151413121110987654321

I

LED 1/2 Preamp

LED Harness

2
3

MO LEX 2

R13
47k

2N4 401

Sheet:

Q12

2of2

LED 1/2 Preamp

On Harness

2 Clr LED

R14
3k3

L4

0- R Jum p e r

L3

0- R Jum p e r

3AG FUSE

1.25A SloBlo

On Harness

2 Clr LED

SPK 1

CZ

QUICK FIT TERM I NAL

NOT USED

SPK 2

CW

QUICK FIT TERM I NAL

NOT USED

LI VE

QUICK FIT TERM I NAL

To P ower Cord

To P ower Cord

R46
1000k

BR RECT

R42
10k

NOT USED

R5
33 k2

V-

R45

470K

4

5

7

U1

6

TLO6 4

11

R47

C3

100nF

10k

Q1

2N5457

L2

2.2uH

To AC Fe ed

To GND

To AC Re turn

R44
100k

C20

1N4148

L1

D13

MPSA56

10uF

11 0uH

R10A

0.1R

C10

Not Used

V+ LED

2
3

MO LEX 2

R49

R48
4k7

4k7

SHO R T CIRC UI T PROTECT

R12
1k

Q10

R11
1k

R10B

R10C

0.1R

0.1R

C11

100nF

R15
100k

MCI 5024

TRX

Q11

MPSA56

TRAN S. PRI.

QUICK FIT TERM I NAL

TRANSFORMER IS MOUNTED ON FACEPLATE

AC Feed

CM C

2m 2H

C7A

100nF

C7B

100nF

QUICK FIT TERM I NAL

GND

QUICK FIT TERM I NAL

AC Return

QUICK FIT TERM I NAL

Part No:

VERS ION 7.0 PB10 (PW RAM P)

Date:

14- Feb- 2001

Drawn :

MS/LL

Rev.

1

SI GNAL LED & AUTO MUTE

R100

R23

237k

12

13

To U1 Pin 4

C25

1n5F

4

U1

TLO6 4

11

NOT USED

-15

14

NOT USED

R24

To U1 Pin 11

C24

22 0nF

R21
4K7

CONN ECTOR

R32

47k

R33

23k7

C26
10nF

+15

AV SW

1
2
3

NOT USED

10

9

C40

R40

1k

10uF

R26

6k8

R31

47k

4

R34

8

U1

8k87

TLO6 4

C27

11

3n3F

R8A

4k7

H

G

F

E

D

C

B

A

Un-designa ted Connec tor

6

+15V

5

mute

4

GND

3

GND

2

SI G

1

-15V

CONNECTOR

To/Fro m PREAM P

NOT USED

R22

42K2

R25

NOT USED

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

TLO6 4

C41

4

3

1

U1

2

1N4148

D7

R28
732R

R29
732R

D8

1N4148

R add

22 0k

R8B

4k7

11

1000k

R7A
5k6

1uF

R41

3x 1W

R7B

R7C

5k6

5k6

R27

2k2

R30

2k2

C32
10uF

C2

C1

4700uF

R50

C6

100nF

NOT USED

4700uF

1N4148

D14

R6
47R

1N474 4A

R43
1000k

D10

1N5242B

1N5256B

D4

D1

D2

R2C
2k2

D11
1N4148

S53
MO DU LE

+6V

V+

D3

R3

O/P

6M 8

V-

+15V

S/D

FR

1N474 4A

I/P

GND

-15V

V+

RS604

2k2

C42

D12

100uF

1N5242B

D6

1N5234B

D5

1N4735A

UVLO

R1C

R1A

R1B

2k2

2k2

2k2

R4

3x 1W

15k

1N4148

R9

C21

100nF

C22

100nF

R2A

R2B
2k2

2k2

I

H

G

F

E

D

C

B

A

PB10 Revision 1 Schematic Diagrams

PREAMP (PCB version 7.2)

51

52

PB10 Revision 1 Schematic Diagrams

POWER AMP (PCB version 7.2)

53

PB10 Revision 2 Schematic Diagrams PREAMP

NOTE: THIS VOLTAGE IS 

REFERENCED TO -V, NOT 

CIRCUIT GROUND

54

NOTE: THIS VOLTAGE IS 

REFERENCED TO -V, NOT 

CIRCUIT GROUND

NOTE: THIS VOLTAGE IS 

REFERENCED TO -V, NOT 