Hammond B-3P Service Manual

SUZUKI MUSICAL INST.MFG.CO.,LTD.

2-25-12,RYOKE,HAMAM A TSU, JA PA N

B- 3P

CAUTIO N !

see safety notice inside

SERVICE M ANUAL

JA N.2005

Use this manual as a supplement to
"New B-3 SERVICE MANUAL."

*

Great care has been taken in the design and manufacture of this product to assure that no shock hazard exists on any exposed
metal parts. Internal service operations can expose the technician to hazardous line voltages and accidentally cause these
voltages to appear on exposed metal parts during repair or reassembly of product components. To prevent this, work on these
products should only be performed by those who are thoroughly familiar with the precautions necessary when working on this
type of equipment.

To protect the user, it is required that all enclosure parts and safety interlocks be restored to their original condition and the
following tests be performed before returning the product to the owner after any service operation.

Plug the AC line cord directly into a line voltage AC receptacle (do not use an isolation transformer for this test) and turn the
product on. Connect the network (as shown below) in series with all exposed metal parts and a known earth ground such as a
water pipe or conduit. Use an AC Voltmeter of 5,000 ohms per volt or higher sensitivity to measure the voltage drop across the
network. Move the network connection to each exposed metal part (metal chassis, screw heads, knobs and control shafts,
escutcheon, etc.) and measure the voltage drop across the network. Reverse the line plug and repeat the measurements. Any
reading of 4 volts RMS or more is excessive and indicates a potential shock hazard which must be corrected before returning
the product to the user .

SAFETY NOTIC E

CAUTIO N

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the
equipment manufacturer. Discard used batterie s according to manufacturer's instructions.

Advarsell

Lithiumbatteri. Eksplosionsfare ved fejlagtig håndering.
Udskiftning må kun ske med batteri as samme fabriket og type.
Lebér det brugte batteri tilbage til leverandoren.

Norge: ADVARSEL

Lithiumbatteri - Eksplosjonsfare.
Ved utskif tning benyttes kun batteri som anbefalt av appa ratfabrikanten.
Brukt batteri returneres apparatleverandoren.

Sverige:

VARNING

Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller et ekvivalent typ som
rekommenderes av apparattillverkaren,
Kassera använt batteri enlig fabrikantens instruktion.

Finland:

VAROITUS

Paristo voi räjähtää, jos se on virheeliseeti ansennettu
Vaihda p aristo ainoastaan laitevalmistajan suosittelemaan

tyyppoonn, Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.

VOM
AC SC ALE

10K
2W

0.01MF
CERAMIC RF
BYPASS CAP

TEST CLIPS

CONNECTED TO KNOWN
EARTH GROUND

TEST

PROBE

TO EXPOSED METAL PARTS

-Table of Contents-

1.SPECIFICATIONS

2.BLOCK DIAGRAM

3.DISASSEMBLY PROCEDURE

4.WIRING CONNECTION

5.WIRING CHART

6.PRINTED WIRING BOARD ASS'Y LIST

7.SCHEMATICS
MXH-3 3 B

8.PARTS LIST

1
2
3-1,3-2
4-1,4-2
5-1~5-8
6

7
8-1~8-16

B-3P

B-3P

1.SPECIFICATIONS

Keyboards Swell & Great (10-Mechanical contacts and Rubber contacts w/velocity)

Pedal Keyboard 25-note, radiating, detachable

Sound Generator 96-Digital Tone Wheels
Harmonic Drawbars™ Swell 9 pitches 2 sets (16',5 1/3',8',4',2 2/3',l 3/5',l 1/3',1')

Great 9 pitches 2 sets (16',5 1/3',8',4',2 2/3',l 3/5',l 1/3',1')
Pedal 2 pitches (16',8')

Tone Wheels Select Manuals 2 Choices Pedals 2 Choices
Percussion PERCUSSION ON,VOLUME SOFT,DECAY FAST,THIRD HARMONIC

Volume & Decay Edit

Vibrato and Chorus Vl,V2,V3,CI,C2,C3 Rotary Knob

Swell On / Off Great On / Off
Speed : 5 (6.10 - 7.25Hz)

Presets Swell: 3 banks * 9 Preset keys + 2 Adjust keys + All Off(Cancel) Key

Great: 3 banks * 9 Preset keys + 2 Adjust keys + All Off(Cancel) Key

Overdrive DSP Overdrive
Extra Voice Swell,Great,Pedal Individually Zoned 3 parts
Tuning 1 Hz Steps 430-450 Hz
Transpose +/- 6 Semitones
LCD 20-characters, 2 lines 9 Control Switches
Leslie Switch Slow /Stop/ Fast, MAIN/ECHO Select
Digital Reverb Continuously Variable

8 Programs : Room 1-3, Hall 1-2, Plate, Church, Cathedral

Tone Controls Bass / Treble
Other Controls Motor Control Switch (Pitch Effect)

Exp Pedal With Foot Swich

Memory Media CompactFlash Card (MAX 256M)
Volume Master,Tone Bass Treble,Reverb,Overdrive
MIDI OUT 3,ZONE
Terminals Leslie Standard 11-pin out 2Socket(MAIN ECHO)

Line In Left / Right
Line Out Left(send) / Right (Line In Mix)
Leslie Rotary Input(Return)
MIDI Out
Headphone

Power Supply 100V,120V,220V,240V AC 50/60Hz
Power Consumption 35W
Dimension 123(W),73(D),97(H)cm / 49(W)29(D)39(H)inch
Weight 132kg / 291lsb
Accessories AC Cord, Leslie Slow/Stop/Fast Switch,25key Pedal,Bench

CF Card 32M, Music Rest

Option MAIN/ECHO Select Switch

1

Up p e r K eybo a rd B3 A s s 'y

KCH-8AKCH-7A

KCH-11 KCH-12

KCH-3A

KCH-6A,B,C,D,E.F

VGH-39A

VGH-39A

48ch DAC

Master Generator
& Control

48ch DAC

Dig ital To ne W heel A ss ' y

TGH-53A

TGH-53B

EFH-236A

MXH-33B

CTH-31A

Lower MIDI keyscan

Upper MIDI keyscan

Drawbar V olume
Control

MGH-82A

VRH-23A

BASS TREBLE
REVERB OVERDRIVE

LESLIE
SWITCH

Leslie Switch Ass'y

Volume Panel B3 As s'y

MASTER
VOLUME

Main/Echo
Control

Drawbar Volume Control

Preset key

VGH-40B

SWH-481C

SWH-491A

Edit Panel B3 Ass'y

LCD
Display

SW scan CPU

MIDI & Pedal keyscan

Switch FPR Ass'y

Switch FPL Ass'y

SWH-487A

SWH-489A

Percussion
ON/OFF
Volume
Decay
Harmonic

Vibrato
Volume soft
Swell
Great

Vibrato SW Ass'y

Drawbar Ass'y

PSH-84A

RLH-493A

DB-409E

DB-409E

DB-402G

DB-409G

DB-409G

IFH-15A

Motor Control Power on/off

EPH116

AES15-5

Lower Key b oard B3 Ass 'y

KCH-8A

KCH-7A

KCH-11A

KCH-12A

KCH-3A

KCH-6A,B,C,D,E.F

Preset key

HEAD
PHONE

EXP Control

CNH-21B

IFH-13B

Headphone

Leslie s low /f as t

Line in (L)

Leslie Rotary IN

(Return)

Line in (R)

Line out ( R)

Line out ( L) SEND

AC in

MIDI out

Leslie out (main)

Leslie out (echo)

+5V
Digital

VIBRATO
AND
CHORUS

Pedal Voice

Percussion Voice

Upper
Drawbar V o ice

Lower
Drawbar V o ice

EXP.Pedal Ass'y

AC Panel Ass'y

Bloc k D iag ram f or B -3 P

Power Transformar

Swithing Power Supply

Power Supply

AC Line Filter

+ 5V Analog

DSP Contr ol

Wave data

MIDI sc an

Drawbar scan

Drawbar

Mixer and Power

Upper A# and B

Lower A# an d B

Pedal

SW

Pedal voice is synchronized
with drawbar voice

Pedal

Compact
Flash Card

LCD

EXT Memory

SW

+15V

- 15V

EXP9BL

EFH-226A

MCH-73

MCH-73

Pedal Voice GEN.

DSP Effect

PK-25PR Ass'y

KCH-4
KCH-5

Bus bars
x10

Bus bars
x10

Analog Signal
Digital Data and Con tr ol Signal

2

B-3P

Block Diagram

B-3P

Slow/Fast

3.DISASSEMBLING PROCEDURE

B-3P



Remove the 4 screws(M5x20,Oval head,ZnB)
and 4 rosette washer(Ø5,ZnB) from the cover
ass'y.

1.REMOVE THE COVER ASS'Y

CAUTION:Disconnect ORGAN from A.C. source.

3.REMOVE THE KEYBOARD



Remove the 8 square claw washers A (Ø5,ZnB)
and 8 screws B (M5x25,Truss,ZnB) from the
upper keyboard.

A

B

C

D



Remove the 4 square claw washers C (Ø5,ZnB),
4 screws D (M5x25,Truss,ZnB) and 4 screws
E (M5x6,Truss,ZnB) from the lower keyboard.

E

< When using CompactFlash >



Remove the 2 screws(M4x12,Truss,ZnB) of HAMMOND Name Plate #1
from the cover ass'y.There is an exclusive slot.

2.REMOVE THE COVER BRACKETS(L)(R)



Remove the 10 screws(M4x10,Bind,ZnB) from the cover brackets(L)(R).

3-1

Bracket A4
(00451-40265)

Frontstrip
(00451-40266)

Hold Bracket
(00451-40325)

Bracket A2
(00451-40262)

Bracket A1
(00451-40261)

KCH-12A
(229-21291)

KCH-11A
(229-21286)

Disassembly pro cedure for Multi C ontact Keybo ard

Remove each of the four Bracket A2.
Bracket A1 can put off after Bracket A2.
Remove more four screws and remove the Bracket A4.

Work to remove this Bracket from upper manual keyboard only.

Remove KCH-6 board from
a side of a connector.
Please do not touch
metal by hande d.

KCH-6 board ar e six kinds
of board from A to F.
Will you try to confirm it.

Remove two circuit boards of KCH-11A and KCH-12A.
Remove four screws through a hole of front side keyboard.
Then remove the Hold Bracket.

It is separated by color.

Ten Bus bars

Put keyboard assembly upward a nd pull out bus bars.
When you toch the bus bar, please use gloves.

Red

Brown

Yellow

Orange

Blue

Green

Gray

Violet

Pink

White

KCH-6A to F

3-2

Disassembly procedure

Manual Keyboard

B-3P

STEP 1

STEP 2

STEP 3

STEP 4

B-3P

Tapping Screw
3x6

Screw M5x6

Screw M5x6

Tapping Screw
3x6

BAS BAR
LOWER

J406

J405

J404

J403

J401

TGH-53B

WR-TW-G

SWH-489A

J1001

VIB
SW

UPPERA#UPPER

B

LOWERA#LOWER

B

Power Tran sfomar

EPH116

PSH-84A

J4 J1

J5J3

J2

J17

J10

VGH-40B

J16

J15 J18

J12

J13

J11

J14

AES15

SWITCHING POWER SUPPL Y

J406

J405

J404

J403

J402

J401

TGH-53A

J603

J602

J601

J604
J606

J609

J605

J608J607

EFH-236A

J801

CNH-21B

J701

IFH-13B

LCD UNIT

J302

J303

J304

J307

J301

SWH-481C

Pedal Key

KCH-3A
LOWER

KCH-3A

UPPER

Bracket A2

Bracket A2

Bracket A2

Bracket A2

IFH-14A

16

SWH-487A

J1002

SWH-491A

J1003

VRH-23A

J1006

J

1

0

0

7

J1005 J 1004

MXH-33B

J1108

J1110
J1106

J1101

J1102

J1105

J1104

J1103

J1111

J1109

J1107

IFH-15A

RLH-493A

J1202

J1205

J1204

J1203
J1201

Power Sw

Motor Sw

EFH226A

J1

J2

EXP-9BL

AC IN

Lesli e o u t

J905

J906

J907

VGH-39A UPPER

J901J902 J904J903

J905

J906

J907

VGH-39A LOWER

J901J902 J904J903

J513J514J508

J509

J511J510

J502

J504J507

J503

J501

J-PK

J506

MGS-82A

WR-TW-A

WR-TW-B-1

WR-TW-M

WR-B3P-E

WR-B3P-H

J-EXP

J-PK

WR-EXP-C

WR-B3P-C

WR-TW-Y

WR-TW-P

Edit Switch

LCD data Buss

UPPER Bus Bars S E T

LOWER Bus Bars SET

WR-TW-N

WR-TW-Q

WR-TW-B-2

WR-TW-C

WR-TW-D

WR-TW-J

WR-TW-K

WR-TW-L

WR-TW-R

WR-TW-N2

WR-TW-U

WR-B3P-F

WR-TW-V

WR-TW-S2

WR-TW-X

WR-TW-E

WR-B3P-A

WR-B3P-A

WR-B3P-B

WR-TW-Q

WR-TW-A2

WR-B3P-G

WR-TW-H

WR-TW-M2

WR-TW-Z

WR-TW-F

WR-TW-F

J202

J201

J204

J203

J205

CTH-31A

Solder i ng Po i n t

Join t Con ecter

Keyboard Ass'y

Edit Panel

MANUAL SHELF

BAS BAR

UPPER

WR-TW-D2

KCH4.5

B-3P

4-1

WIRING CONNECTION

1/2

J603

J602

J601

J12

J11

J13

J14

J906

J907

J901

J902 J904

J903

J907

J901

J902

J904

SWH-489A

VIB
SW

GND

COM

IFH-14A

SWH-487A

UPPERA#UPPERBLOWERB#LOWER

B

Dreawbar Panel B3

J17

J10

J16

J15

PSH-84A

J4 J1

J5

J3

J2

J406

J405

J404

J403

J402

J401

TGH-53A

J604

J606
J609

J605

J608

J607

EFH-236A

J302

J303

J304

J307

J301

SWH-481C

MXH-33B

J1108

J1110

J1106
J1101

J1102

J1105

J1104

J1103

J1111

J1109

J1107

J513

J514J508

J509

J511

J510

J502

J504

J507

J503

J501

J506

J202

J201

J204

J203

J205

KCH-12

KCH-11

UPPER

KCH- 8A UPPER

KCH- 7A UPPER

BUS BAR

UPPER

KCH-3A

UPPER

UPPER KEY

BUS BAR
LOWER

KCH-3A
LOWER

LOWER KEY

IFH-13B

CNH-21B

Jack Panel B3

Flat Cable Connecti on

F30E1040

F50Z1300

F26A900

F26A1150

F20E850

KCH-8A LOWER

KCH-7A LOWER

AES15

J1202

J1205

J1204

J1203
J1201

KCH-12

LOWER

KCH-11

MGS-82A

VGH39A-1

CTH-31A

B-3P

4-2

WIRING CONNECTION

2/2 FLATCAB LE

B-3P

J18

VGH-40B

RLH-493A

IFH-15A

5.WIRING CHART

J508 10 J402-5 GRY TGH-53

A

D7

11

-1 BLK DG

PLUG FROM TO PLUG WIRE TO PWB 12 -2 WHT KEY DOWN

No. PIN No. & PIN No. COLO

R

NAME J509 1 J202-13 BRN CTH-31

A

KEY REST

J501 1 AES15-4 YEL SW AES-15 +5V 2 -9 RED CS

2 J201-3 CTH-31A +5V 3 -11 ORG RD
3 J18-1 VGH-40B +5V 4 -10 YEL KEY IREQ
4 NC 5 -1 GRN D0
5 AES15-2 BLK SW AES-15 DGND 6 -2 BLU D1
6 J201-5 CTH-31A DGND 7 -3 VIO D2
7 J18-6 VGH-40B DGND 8 -4 GRY D3

J502 1 NC +5V 9 -5 WHT D4

2 J301-1 BRN SWH-481C SW IN 10 -6 PNK D5
3 -2 RED SW OUT 11 -7 BRN D6
4 NC DTR 12 -8 RED D7
5 NC VAS VIN1 13 NC
6 -3 ORG SW RES J510 1 NC +5V
7 -6 BLK DG 2 J604-3 BRN EFH-236A OUT

J503 1 BREAK SW-2 YEL BREAK SW +5V 3 -2 RED IN

2 J1002-3 YEL SWH-487A +5V 4 -4 ORG DSP RES
3 BREAK SW-1 ORG BREAK SW CPU AN2 5 -1 YEL KEY DOWN
4 BREAK SW-3 BLK BREAK SW PICH 6 -6 BLK DG
5 J1002-1 BRN SWH-487A MOD J513 1 J905-3 BRN VGH-39A LSV0
6 -2 RED AIN4 2 J905-4 RED RSV0
7 -4 ORG AIN5 3 J905-5 ORG LSV1
8 -5 YEL AIN6 4 J905-6 YEL RSV1
9 -6 BLK DGND 5 J905-2 GRN LSV2

J504 1 J15-1 BRN VGH-40B BAS IN 6 J905-1 BLU RSV2

2 -2 RED BAS OUT 7 NC
3 -3 ORG BAS RES 8 NC

J506 1 BLK DGND 9 J903-4 VIO WDCLK

2 YEL LCD+5V 10 J903-6 GRY BCLK
3 CN2-2 BRN LCD UNIT CONT 11 J906-2 WHT SELA2
4 CN1-6 RED LCDA0 12 J906-1 PNK SELB2
5 CN2-3 ORG LCDR/W 13 J906-3 BRN ENB
6 CN1-5 YEL LCDE 14 NC DG
7 CN2-4 GRN D0 15 J904-1 RED LSV3
8 CN1-4 BLU D1 16 J904-2 ORG RSV3

9 CN2-5 VIO D2 17 J904-4 YEL LSV4
10 CN1-3 GRY D3 18 J904-3 GRN RSV4
11 CN2-6 WHT D4 19 J903-1 BLU LSV5
12 CN1-2 PNK D5 20 J903-2 VIO RSV5
13 CN2-7 BRN D6 J514 1 J905-3 BRN VGH-39A LSVI0
14 CN1-1 RED D7 2 -4 RED RSV0
15 CN2-1 BLK DG 3 -5 ORG LSV1
16 CN1-7 YEL +5V 4 -6 YEL RSV1

J507 1 J701-3 YEL IFH-13B +5V 5 -2 GRN LSV2

2 -1 BRN MIDI IN 6 -1 BLU RSV2

3 -2 RED MIDI OUT 7 NC DG

4 NC SW RES 8 NC DG

5 -4 BLK DG 9 J903-4 VIO WDCLK

J508 1 J402-4 WHT TGH-53A ST1 10 J903-6 GRY BCLK

2 -3 PNK ST2 11 J906-2 WHT SELA2

3 -19 BRN D0 12 J906-1 PNK SELAB2

4 -17 RED D1 13 J906-3 BRN ENB

5 -15 ORG D2 14 NC DG

6 -13 YEL D3 15 J904-1 RED LSV3

7 -11 GRN D4 16 J904-2 ORG RSV4

8 -9 BLU D5 17 J904-4 YEL LSV4

9

-7 VIO D6

18

J904-3 GRN RSV4

MGH-82

A

FUNCTION

B-3P

5-1

MAIN & MASTER GENERATO

R

B-3P

J906 2

J514-11 WHT MGH-82

A

SEL

A

3

J514-13 BRN MGH-82

A

ENB

PLUG FROM TO PLUG WIRE TO PWB J907 1 NC +15V

No. PIN No. & PIN No. COLO

R

NAME

2

J907-2 ORG VGH-39A-1 +15V

J514 19 J903-1 BLU VGH-39

A

LSV5 3 NC AGND

20

J903-2 VIO VGH-39

A

RSV5

4

J907-4 BLK VGH-39A-1 AGND

5 NC -15V

6

J907-6 GRN VGH-39A-1 -15V

J901 1 J101 KCH-7A HI WAVE 7 NC DGND
J902 1 J104 KCH-8

A

LOW WAVE 8 J907-8 BLK VGH-39A-1 DGND

J903 1 J513-19 BLU MGH-82

A

12L 9 NC +5V

2

J513-20 VIO 12R

10

J907-10 YEL VGH-39A-1 +5V

3 NC WDCLK

4

J513-9 VIO WDCLK

5 NC BCLK J201 1 NC TXD

6 J513-10 GRY BCLK 2 NC RXD

J904 1 J513-15 RED MGH-82

A

10L 3 J501-2 YEL MGH-82

A

+5V

2 -16 ORG 10R 4 J302-1 YEL SWH-481C +5V

3 -18 GRN 11R 5 J501-6 BLK MGH-82

A

DGND

4 -17 YEL 11L 6 J302-3 BLK SWH-481C DGND

J905 1 J513-6 BLU MGH-82

A

9R J202 1 J509-5 GRN MGH-82

A

D0

2 -5 GRN 9L 2 -6 BLU D1

3 -1 BRN 7L 3 -7 VIO D2

4 -2 RED 7R 4 -8 GRY D3

5 -3 ORG 8L 5 -9 WHT D4

6 -4 YEL 8R 6 -10 PNK D5

J906 1 J513-12 PNK MGH-82

A

SELB 7 -11 BRN D6

2 J513-11 WHT SEL

A

8 -12 RED D7

3 J513-13 BRN ENB 9 -2 RED CS

J907 1 J1110-8 ORG MXH-33B +15V 10 -4 YEL IREQ

2 J907-2 ORG VGH-39A-2 +15V 11 -3 ORG RD

3 J1110-6 BLK MXH-33B AGND 12 NC NC

4 J907-4 BLK VGH-39A-2 AGND 13 -1 BRN A/17

5 J1110-1 GRN MXH-33B -15V 14 NC D GND

6 J907-6 GRN VGH-39A-2 -15V J203 1~26 J011 KCH-11 UP KEY

7 J1106-5 BLK MXH-33B DGND J204 1~26 J012 KCH-11 LW KEY

8 J907-8 BLK VGH-39A-2 DGND J205 1 PK-25B J1 BLK KCH-4

A

9 J1106-2 YEL MXH-33B +5V 2 BLK/WHT

10

J907-10 YEL VGH-39A-2 +5V

3

ORG

4 ORG/BLK

5

GRN

J901 1 J102/103 KCH-7A ,8A MIDI WAVE 6 BRN/WHT
J902 1 J102/103 KCH-7A ,8A MIDI WAVE 7 YEL
J903 1 J514-19 BLU MGH-82

A

12L 8 YEL/BLK

2 J514-20 VIO 12R 9 BRN

3 NC WDCLK 10 BRN/BLK

4 J514-9 VIO WDCLK 11 BLU

5 NC BCLK 12 BLU/WHT

6 J514-10 GRY BCLK 13 GRY

J904

1

J514-15 RED 10L

14

BRY/BLK

2 -16 ORG 10R

3

-18 GRN 11R

4 -17 YEL 11L J15 1 J504-1 BRN

MGH-82

A

TxD0

J905 1 J514-6 BLU 9R 2 -2 RED RxD0

2 -5 GRN 9L 3 -3 ORG Reset in

3 -1 BRN 7L 4 NC PA4

4 -2 RED 7R 5 NC DG

5 -3 ORG 8L J16 1 J1106-1 YEL MXH-33B +5V

A

6 -4 YEL 8R 2 J1106-4 BLK MXH-33B AGND

J906

1

J514-12 PNK

SELB

3

NC DGND

5-2

MGH-82

A

48 VOICE D/

A

MIDI KEY SCAN

MAIN & MASTER GENERATO

R

BASS VOICE & DRAWBAR SCA

N

VG

H-40B

V

GH-39A-1

C

TH-31

A

48 VOICE D/

A

VGH-39

A-2

FUNCTION