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B-3P

6. Printed Wiring Board Ass'y List 

 Note : Please refer to New B-3 service manual for all schematics except MXH-33B.

PWB.NAME

PART No.

FUNCTION

MGH-82A

00228-24211

 Main CPU & Tone Wheel Generator

VGH-39A (2sets)

00221-16201

 96-ch. D/A Converter

VGH-40B

00221-16207

 Drawbar Scan & Bass Voice Generator

TGH-53A (UM)
TGH-53B (LM)

00230-14236
00230-14237

 Bus Amp & Drawbar Volume

EFH-236A

00223-41286

 Vibrato / Chorus  & Expression (DSP)

MXH-33B

00230-06292

 Mixer & Power Supply

IFH-13B

00232-14242

 MIDI JACK

EFH-226A

00223-41221

EXP.PEDAL

CNH-21B

00225-39297

 LINE IN/OUT Jack

PSH-84A

00224-18226

 AC Line Fuse

CTH-31A

00220-20226

 MIDI & Key Scan

IFH-15A
RLH-493A

00232-14251
00225-41201

BASS Phase Scan
Leslie MAIN / ECHO Switch

SWH-487A

00225-40256

 Percussion Switch

SWH-489A

00225-40271

 Volume Soft & Vibrato Switch

SWH-491A

00225-40291

 LCD Edit Switch

VRH-23A

00225-40286

 Rotary Volume  Panel

SWH-481C

00225-40203

 Switch Scan CPU

KCH-11A
KCH-12A

00229-21386
00229-21387

 UM / LM MIDI Key Contact

KCH-7A
KCH-8A

00229-21266
00229-21271

 Manual Key Contact Mother Board

KCH-6A~6F

00229-22216~21

 10 Key Contact Ass'y 

KCH-3A

00229-21246

Preset Key Contact

KCH-4A/5A

00229-21251
00229-21256

PK25 Key Contact

6

Summary of Contents for B-3P

Page 1: ...SUZUKI MUSICAL INST MFG CO LTD 2 25 12 RYOKE HAMAMATSU JAPAN B 3P CAUTION see safety notice inside SERVICE MANUAL JAN 2005 Use this manual as a supplement to New B 3 SERVICE MANUAL...

Page 2: ...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 a...

Page 3: ...ntents 1 SPECIFICATIONS 2 BLOCK DIAGRAM 3 DISASSEMBLY PROCEDURE 4 WIRING CONNECTION 5 WIRING CHART 6 PRINTED WIRING BOARD ASS Y LIST 7 SCHEMATICS MXH 33B 8 PARTS LIST 1 2 3 1 3 2 4 1 4 2 5 1 5 8 6 7 8...

Page 4: ...ive 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 Sele...

Page 5: ...or Control Power on off EPH116 AES15 5 Lower Keyboard 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 slow fast Line i...

Page 6: ...ashers A 5 ZnB and 8 screws B M5x25 Truss ZnB from the upper keyboard A B C D Remove the 4 square claw washers C 5 ZnB 4 screws D M5x25 Truss ZnB and 4 screws E M5x6 Truss ZnB from the lower keyboard...

Page 7: ...m a side of a connector Please do not touch metal by handed KCH 6 board are 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 screw...

Page 8: ...IFH 15A RLH 493A J1202 J1205 J1204 J1203 J1201 Power Sw Motor Sw EFH226A J1 J2 EXP 9BL AC IN Leslie out J905 J906 J907 VGH 39A UPPER J901 J902 J904 J903 J905 J906 J907 VGH 39A LOWER J901 J902 J904 J90...

Page 9: ...110 J1106 J1101 J1102 J1105 J1104 J1103 J1111 J1109 J1107 J513 J514 J508 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 UPP...

Page 10: ...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...

Page 11: ...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 3...

Page 12: ...Lch2 IN 4 NC NC 3 J16 5 BLK VGH 40B AG J609 1 VIB SW BLK VIB SW DGND 4 J406 3 ORG TGH 53A Rch2 IN 2 NC NC 5 J406 4 BLK TGH 53B AG 3 VIB SW WHT AN7 6 J406 1 YEL TGH 53B Rch1 IN 7 J406 4 BLK TGH 53A AG...

Page 13: ...T 5 5 DS11 2 NC 6 6 DS12 3 NC PER OUT 7 7 DG 4 J601 5 BLK AG J406 1 J601 8 RED EFH 236A DRA OUT 5 NC AG 2 NC 3 J601 4 ORG PER OUT 4 J601 7 BLK AG J1002 1 J503 5 BRN MGH 82A SIG4 5 J601 1 BLK AG 2 6 RE...

Page 14: ...01 4 YEL CTH 31A 5V 3 J 2 BRN EFH 226A EXP DC 2 J403 3 YEL TGH 53B 5V 4 J 6 BLK LAMP G 3 J201 6 BLK CTH 31A DGND 5 J 5 GRN 15V 4 J403 5 BLK TGH 53B DGND 6 J 3 BLK AG J303 1 J1 3 BRN KCH 3A COM3 7 J 1...

Page 15: ...2 WHT AC INLET J1111 1 YEL IFH 14A 5V J5 1 POWER TRANS EPH 116 2 NC DGND 2 3 BLK IFH 14A DGND 3 4 5 J1201 1 J403 1 BLU TGH 53A 5V 6 2 J403 11 GRN 15V 7 3 J403 9 BLK AG 8 4 J403 5 BLK DG 9 5 J403 7 ORG...

Page 16: ...G MXH 33B 15 5 7 VIO SW3 2 3 BRN OUT 6 6 BLU SW4 3 6 BLK AGND 7 5 GRN SW5 4 NC NC 8 NC 5 8 ORG LAMP 6 4 BLK DGND 7 NC AGND J1 1 J304 4 YEL SWH 481C COM0 8 5 GRN 15V 2 5 GRN COM1 J2 1 EXP Lamp BRN EXP...

Page 17: ...14 14 14 DB7 15 15 GND 16 16 GND PLUG WIRE TO PLUG TO PWB No COLOR 8 PIN No NAME J1 BRN J EXP 7 J1105 7 MXH 33B 15V RED 3 3 OUT BLK 6 6 AG BLU 2 2 FOOT SW ORG 8 8 15V GRY 4 4 LAMP GND YEL 1 1 D GND GR...

Page 18: ...H 226A 00223 41221 EXP PEDAL CNH 21B 00225 39297 LINE IN OUT Jack PSH 84A 00224 18226 AC Line Fuse CTH 31A 00220 20226 MIDI Key Scan IFH 15A RLH 493A 00232 14251 00225 41201 BASS Phase Scan Leslie MAI...

Page 19: ...1000u 16V C47 1000u 16V 15 15 C37 0 1 C38 0 1 R44 4 7 1 2W R45 4 7 1 2W PSW1 RXE185 1 85A PSW2 RXE185 1 85A D1 DBF40C C42 2200u 35V C43 2200u 35V D2 DBF10C 30V 30V PSW3 RXE050 PSW4 RXE050 15 AG 15 LA...

Page 20: ...7 KP Tooth Knob Pinch Screw Rubber Foot SJ 5012 Rosette Washer 5 ZnB Square Claw Washer 5 ZnB Tapping Screw Type 1 Flat 2x10 ZnB Tapping Screw Type 1 Truss 4x10 ZnB Tapping Screw Type 1 Oval head 4x1...

Page 21: ...00452 40168 00452 40169 00730 04009 00613 34015 00453 40219 00730 00004 00615 34030 66371 01204 00450 40615 00450 40616 00451 40429 00451 40443 00451 40255 00450 40619 00451 40445 00452 40161 00613 6...

Page 22: ...40623 00450 40624 00450 40625 00352 01104 00352 01105 00730 03005 00730 04010 00702 43012 00702 24008 00451 40456 00453 40224 00703 54005 00700 04006 00450 40664 00760 03003 00781 24012 1 2 3 4 5 6 7...

Page 23: ...pe B M4x11 5 ZnY Leather Sheet 1150x620 Staple 4x22 1 2 3 4 5 5 7 2 1 4 9 3 4 1 8 6 00450 40626 00450 40627 00450 40628 00450 40629 00450 40632 00352 01081 00402 05121 00613 32010 00615 64030 Music Ra...

Page 24: ...y Power Transformer EPH 116A Machine Screw M4x15 ZnB Fasten Tab 250 Tapping Screw Type 1 Bind 3x12 ZnB RLH 493A Ass y IFH 15A Aaa y SWH 481C Ass y TGH 53A Ass y TGH 53B Ass y 00220 20226 00623 53006...

Page 25: ...00443 01189 00443 01190 00443 01196 F30E1040 F20E850 F50Z1300 00444 09001 00444 04002 00444 08001 F26A900 F26A1150 00444 05008 00444 05009 39 41 37 38 41 42 45 44 40 46 43 37 38 39 40 41 Front Panel B...

Page 26: ...2G Drawbar Plate B3 Vibrato SW Ass y Vib Knob Plate Music Stopper Ass y Machine Screw Oval M4x35 ZnB Drawbar Cover Tapping Screw Type 1 Truss 4x8 ZnB V C Knob B 3 66311 02111 16 Power Panel B3 Ass y 1...

Page 27: ...431 00443 01295 00443 01300 00443 01296 00703 53010 Power Plate Wiring WR B3P B Wiring WR B3P G Wiring WR B3P C Machine Screw Bind M3x10 ZnB 6 7 8 9 00725 83000 00755 44000 00623 54008 00454 40019 Hex...

Page 28: ...7 6 4 5 3 2 1 Rear Jack Panel B3P Jack BKT XC 3EN Jack BKT B3 CNH 21B Ass y IFH 13B Ass y Wiring WR B3P A Wiring WR B3P F 00703 53006 8 Machine Screw Bind M3x6 ZnB 11 12 13 10 9 Machine Screw Bind M3x...

Page 29: ...5 1 2 3 4 5 6 7 8 00450 40635 00450 40636 00450 40637 00402 21825 00453 40255 00781 21006 00781 24022 00781 24035 3 2 1 Round Pipe For Main Stand 50 8 Square Pipe For Main Stand L Bracket Foe Main Sta...

Page 30: ...40427 00451 40428 00451 40440 00760 05003 3 1 2 4 2 Bench Stand Weld Ass y L Bench Stand Weld Ass y R Flat Round Stopper 5 00453 40216 Flat Square Stopper 6 00714 78045 Hexagon Socket Head Cap Screw B...

Page 31: ...x10 ZnB Machi ne Screw Pan head M5x80 ZnY Machine Screw Pan head M5x95 ZnY Tapping screw Type 2 Bind 3x10 ZnY Black Pedal Cap Pedal Hinge Spring 66376 0210200700 0400500705 4508000705 4509500625 53010...

Page 32: ...Screw Bind M3x10 ZnB Hexagon Nut With Flange AL Sheet PR 6 7 8 9 10 11 12 66376 02104 00450 40646 00452 40153 00452 40170 00451 40437 00613 64010 00613 34016 00700 06003 00443 01302 00703 53010 00725...

Page 33: ...40444 00453 40219 00703 66020 00451 40454 Foot Rest Pipe PK Top Cover Leather Sheet Machine Screw Truss M6x20 ZnB Foot Rest Pipe Holder 5 4 1 2 3 00234 36202 00451 40436 00443 01298 00703 54005 00451...

Page 34: ...Spacer Spacer Pipe EXP Pedal Rubber Foot SW Ass y Wire Sticker EXP P Cover EXP 5MFL Pedal Spacer Paper 16 17 18 19 20 21 22 23 14 15 13 12 11 10 9 8 7 6 5 4 3 2 1 22 17 19 20 16 23 9 23 23 11 17 18 21...

Page 35: ...nB Rubber 1 2 3 4 5 6 7 00234 34221 00451 40044 00451 40045 00453 40016 00401 06018A 00703 53004 00402 05012 Support BKTStopper Felt B Mini Micro Switch MachineScrew Bind M2x10 ZnB Hinge Pin Retaining...

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