Yamaha RBX 6JM User manual

SERVICE MANUAL

ELECTRIC BASS

RBX 6JM

CONTENTS

OVERALL ASSEMBLY

•••••••••••••••••••••••••••••••••••••••••••••••••••••••

2

ELECTRICAL PARTS

••••••••••••••••••••••••••••••••••••••••••••••••••••••••

4

CIRCUIT BOARDS

••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

6

CIRCUIT DIAGRAM

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7

WIRING

••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

8

SPECIFICATIONS

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8

HAMAMATSU, JAPAN

1.2K-641 Printed in Japan '99.03

EG

011464

19990401-140000

A01

D01

E04

E12

E19E18

E21

E27E26E25

G04G03G01

G09G08G06

E01

E02 E04

E10

E11

E28

E33E31

E30

F07F02

F01

BALANCER : 20k ohm

BASS EQ.: 50k ohm

MID EQ.: 50k ohm

VOLUME : 5k ohm

E28

HIGH EQ.: 50k ohm

F11

E27E26

E25

A01a

A seal is attached

on the rear of the neck.

RBX 6JM

B03

B01

B02b

B02a

B05

B06

E18

Bridge Assembly : BPX-6C Solid Brass GOLD (QC471100)

RBX 6JM

2

OVERALL ASSEMBLY

RBX 6JM

3

*

New Parts

RANK:Japan only

REF NO.

A01

A01a

D01

E01

E02

E04

E10

E11

E12

E18

E19

E21

E25

E26

E27

E28

E30

E31

E33

F01

F02

F07

F11

G01

G03

G04

G06

G08

G09

H01

B01

B02a

B02b

B03

B05

B06

PART NO.

DX809790

DX809780

- -

QC336300

QC336400

03704070

QC471400

QC205200

VI825000

QC471100

QA170100

- -

BB802460

EM630250

VB793700

QC032200

QC429500

QC513200

ER327136

QC432100

VK505700

EJ330086

QC437300

QC474100

03741140

CB815450

QC474200

03741140

CB815450

QC354000

QC471100

QC471200

AAX03190

AAX03200

EA330400

AX818240

AX818250

DESCRIPTION

OVERALL ASSEMBLY

Neck Assembly

Seal

Body

Tuning Machine Assembly

Round Head Wood Screw

Nut

Neck Joint Bushing

Oval Head Tapping Screw

Bridge Assembly

Oval Head Tapping Screw

Strings

Strap Button

Oval Head Tapping Screw

Spacer

Knob

Instruction sheet

Back Cover

Oval Head Wood Screw

Electrical Unit

Box for Dry Cell

Pan Head Tapping Screw

Electrical Unit(Jack Assy)

Pickup Assembly

Pan Head Tapping Screw

Pickup Cushion

Pickup Assembly

Pan Head Tapping Screw

Pickup Cushion

Accessory Unit

Bridge Assembly

Bridge Base

Bridge Piece Assembly

Pan Head Screw

Spring

RM1243 (GOLD)

RM1243L (GOLD)

2.4X10 GOLD

51mm

BL

5.0X40 MFZN2BL (BL)

BPX-6C (GOLD)

4.0X35 GOLD

H6010

ST type (GOLD)

3.0X25 GOLD

BL

GOLD

Electrical (BL)

2.7X13 FCM3BL (BL)

(1) 3-BAND EQ.

(2)

3.0X8 FCM3BL (BL)

(3)

3.0X35 FCM3BL (BL)

85LX17WX15H

3.0X35 FCM3BL (BL)

85LX17WX15H

(G-1)

BPX-6C (GOLD)

P=16.5 (GOLD)

GOLD with screw

3.0X40 FCM3BL (BL)

30mm (BL)

25mm (BL)

REMARKS

RBX 6JM

TB

RR

(QC47030)

Solid Brass

1set (QC02470)

(EN23013)

(EB62002)

(QC02500)

Front

Rear

1set

Solid Brass

1-3

4-6

1-3 string

4-6 string

QTY

3

6

5

2

5

2

3

4

3

4

3

6

3

RANK

09

02

09

04

01

02

01

06

05

08

01

29

07

01

10

19

01

02

19

01

02

07

01

02

*

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where

applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly

other entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON

WHAT SO EVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes

to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling

food.

RBX 6JM

4

ELECTRICAL PARTS

DESCRIPTION

ELECTRICAL PARTS

Electrical Unit

Hexagonal Nut

Tuntalum Capacitor

Electlytic Cap.

Ceramic Capacitor

Electlytic Cap.

Ceramic Capacitor

Electlytic Cap.

Ceramic Capacitor

Electlytic Cap.

Ceramic Capacitor

Electlytic Cap.

Mylar Capacitor

Electlytic Cap.

Mylar Capacitor

Ceramic Capacitor

Mylar Capacitor

Ceramic Capacitor

Connector

Diode

IC

Ciol

FET

Carbon Resistor

REF NO.

C1-4

C05

C06

C31

C32

C33

C34

C35

C36

C37

C38

C39

C40

C41

C42

C51

C52

C53

C61

C62

C63

C71

C72

C73

C74

C81

C82

C83

C84

C85

CN1

CN2

CN3

CN4

D1-4

D5

IC1

IC2

IC3

IC4

L1-4

Q1-4

R1-4

R5-8

R09

R10

R11

R12

R13

R14

R15

R16

R21

R23

R31

R32

R51

R52

R53

R54

R55

R56

R57

R61

R62

R63

R64

PART NO.

QC432100

QC434900

FP355100

FX804200

UI137100

FG444100

FX804200

UI137100

FG444100

UI137100

FG444100

UI137100

UI166100

FG444100

FG212100

FX804200

UA154330

UA155100

UI166100

UA154220

FG212100

UA153100

UA153220

UA153150

FG212100

FG212330

LB918020

LB918040

LB918020

IX808800

QC183900

IX808770

IG070700

IX808780

GX804490

IX808790

HF559100

HF559220

HF556680

HF556470

HF556680

HF556470

HF557100

HF556470

HF558470

HF557220

HF557330

HF557270

HF557470

HF557220

HF554330

HF557180

HF557220

HF554330

HF557330

HF557120

HF557680

3-BAND EQ.

0.1uF/35V

22u/16V R3A-16V220

10u/16V RC3-16V100

0.01uF/50V

22u/16V R3A-16V220

10u/16V RC3-16V100

0.01uF/50V

10u/16V RC3-16V100

0.01uF/50V

10u/16V RC3-16V100

1u/50V RC3-50V010M

0.01uF/50V

100pF/50V

22u/16V R3A-16V220

0.033uF

0.1uF/50V

1u/50V RC3-50V010M

0.022uF

100pF/50V

1000pF/50V

2200pF

1500pF

100pF/50V

330pF/50V

B2B-XH-A 2P

B4B-XH-A 4P

B2B-XH-A 2P

E-301

1SR139-100

OP200GP

TL062CP

TLC7662BEPA

ELEXG101KA 100uH

2SK30ATM(O)

1.0M 1/6W J

2.2M 1/6W J

6.8K 1/6W J

4.7K 1/6W J

6.8K 1/6W J

4.7K 1/6W J

10K 1/6W J

4.7K 1/6W J

470K 1/6W J

22K 1/6W J

33K 1/6W J

27K 1/6W J

47K 1/6W J

22K 1/6W J

33 1/6W J

18K 1/6W J

22K 1/6W J

33 1/6W J

33K 1/6W J

12K 1/6W J

68K 1/6W J

REMARKS

RBX 6JM

FRONT PICKUP

REAR PICKUP

OUTPUT JACK

BATTERY

OP AMP

QTY

*

:

New Parts RANK:Japan only

RANK

29

06

02

05

01

05

01

05

03

01

05

01

12

07

10

04

01

03

01

03

01

03

01

03

01

RBX 6JM

5

DESCRIPTION

Carbon Resistor

Rotary Variable Resistor

Trimmer Potentiometer

REF NO.

R65

R71

R72

R73

R74

R75

R76

R77

R78

R79

R80

R81

R82

R83

R84

R85

R86

R87

R88

R89

VR1

VR2

VR3

VR4

VR5

VR7

VR8

PART NO.

HF557470

HF558100

HF557510

HF557270

HF557100

HF557180

HF557100

HF556220

HF557470

HF557330

HF557470

HF557100

HF557220

HF557100

HF556330

HF557470

HX809140

HX809150

HX809160

HX809170

47K 1/6W J

100K 1/6W J

51K 1/6W J

27K 1/6W J

10K 1/6W J

18K 1/6W J

10K 1/6W J

2.2K 1/6W J

47K 1/6W J

33K 1/6W J

47K 1/6W J

10K 1/6W J

22K 1/6W J

10K 1/6W J

3.3K 1/6W J

47K 1/6W J

EWCE6AF22B24 20K

EWCE6AF22A53 5K

EWCE6AF22B54 50K

EVND8AA0 BQ3 4.7K

REMARKS

BALANCER

VOLUME

EQUALIZER BASS

EQUALIZER MID

EQUALIZER TREBLE

QTY

*

:

New Parts RANK:Japan only

RANK

01

03

01

07

04

RBX 6JM

6

Pattern side

Component side

BASS MID TREB

BALANCER

FRONT PICKUP

REAR PICKUP

VOLUME

OUTPUT jack

Battery 9V

EPA-QC43210-2

CIRCUIT BOARD

CN3

(

OUTPUT

C42 C41

JACK)

0.01µ 0.01µ

9V

CN4

1

3

2

1

2

4

(BATTERY)

0.01µ C37

L3

D5

C34

L1100µH

C33

A

0.01µ

C38

C35

C36

10µ/16V

+

(M.VOL)

VR2

R55

5KA

3

18K

100p

-

6

7

R54

IC1-2

R53

C52

22K

2

45

1

7

22K

R56

3

2

1

8

1µ/50V

TC7662

IC4

6

L2

C40

5

12K

R65

3

+

R63

1µ/50V

C63

OP200GP

1

2

(BASS)

68K

R64

47K

A

VR5

50KB*2

(TREBLE)

3

1

47K

10K

2

47KR80

C74

1000p

R78

2

R79

47K

10K

R77

18K

R76

2.2K

1

3

22K

R85

C85

330p

R89

R86

R87

2

1

3.3K

47K

R88

1

2

C32

4

8

+

-

47K

R52

47K

C51

3

100p

R51

0.01µ

IC1-1

4.7K

R13

1

3

2

R15

C31

C5

10K

+

A

R31

33K27KR32

+

R74

C61

R61

33K

IC2-1

100p

R62

OP200GP

+

-

8

4

0.1µ

33K

C73

TL062

3

2

0.033µ

C62

R57

33

(BAL)

R14

A

2

4.7K

B4.7K

C6

1

+

10K

VR1

20KB*2

BALANCER

+

Q2

C1

+

2.2M

R1

1M

2SK30

6.8K

E301

R9

2SK30

D1

R5

Q1

FRONT

2SK30

+

2.2M

R7

C3

1M

6.8K

1M

2.2M

R10

D2

R6

C2

R2

2SK30

Q4

R3

R11

E301

D3

Q3

E301

2

1

CN2

2

1

CN1

REAR

P.U.

C82

10K

-

C81

10K

0.022µ

C72

R72

51K

100K

5

IC3-2

IC2-2

+

4

8

R84

R73

27K

6

R75

1500p2200p

100p

R71

C71

0.022µ

6

5

TL062

-

+

10K

C83R83

47K

R82

VR8

B4.7K

3

TL062

R81

33K

R4

IC3-1

TL062

1

E301

22K

1M

R8

C4

+

2.2M

4.7K

+

R12

D4

3

2

R23

-

VR3

22µ/16V

A

50KB

(MID)

VR4

Ceramic Capacitor

Electrolytic Capacitor

Mylar Capacitor

Tantalum Capacitor

(Audio)

50KB

C53

+

33

4.7K

VR7

C84

3

100µH

C39

470K

R21

10µ/16V

L4

22µ/16V

1

7

R16

10K

0.1µ/16V

22µ/16V

10µ/16V

22µ/16V

STE-BACC-02

RBX 6JM

7

CIRCUIT DIAGRAM

FRONT PICKUP REAR PICKUP

Box for dry cell

VOLUME

5k ohm

BALANCER

20k ohm

BASS

MID

TREB

OUTPUT

Equalizer

50k ohm

to bridge GND

RBX 6JM

8

WIRING

SPECIFICATIONS

STANDARD SPECIFICATIONS

Scale Length ··········································889.0mm

Body-Neck Construction·······················Bolt On

Length····················································1157.3mm

Width ·····················································351.0mm

Net Weight·············································5.0kg

COLOR

Body

TB······················································Turquoise Blue

RR······················································Ruby Red

Neck

TB······················································Turquoise Blue

RR······················································Ruby Red

BODY

Material··················································Alder

Veneer····················································Figured Maple

Body Depth············································44.0mm

FINGERBOARD

Material··················································Ebony

Fingerboard Width·································0-F 51.0 mm, 12-F 83.0 mm

No. of Frets············································24

NECK

Material··················································Maple

Neck Thickness······································1-F 20.0 mm, 12-F 23.2 mm

PARTS

Hardware················································Gold Plated

Nut ·························································Bone

Bridge ····················································BPX-6C: Solid Brass (Gold)

Strings····················································YAMAHA H6010

CONTROLS

Volume ··················································5k ohm x 1

Balancer·················································20k ohm x 1

Equalizer················································50k ohm x 3

PICKUPS

Front/Rear··············································Double Coil

Magnet

Front/Rear··········································Alnico

Yamaha RBX 6JM User manual

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Yamaha RBX 6JM User manual

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