Yamaha BB NE2 User manual

1.018K-661 Printed in Japan ’01.10
BB NE2
SERVICE MANUAL
EG 011597
ELECTRIC BASS
HAMAMATSU, JAPAN
CONTENTS
OVERALL ASSEMBLY ............................................ 2
ELECTRICAL PARTS ............................................ 4
CIRCUIT BOARD ........................................... 6
CIRCUIT DIAGRAM .................................................. 7
WIRING .................................................................... 8
SPECIFICATIONS ................................................. 8
This document is printed on chlorine free (ECF) paper with soy ink.
20011101-280000
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 INYOUR
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.

BB NE2
2
OVERALL ASSEMBLY
E03
E14
E17 E18
E19
E01 E03E02
E08
A01
D01
G04
G03
G01
E11
E12
E17
F02
F01 F11
E23
E20 F05 F06 F07
E24
F04
E18 E19 F12 F13 F14 F15 F16 F17
F12a
F03
F08 F09 F10
F03a
G09
G08
G06
BALANCER: B 20KΩ
E20 F05 F06 F07
VOLUME: A 5KΩ
E20 F05 F06 F07
EQUALIZER BASS: W 50KΩ
E20 F05 F06 F07
EQUALIZER MID: W 50KΩ
E20
E20a
E20a
E20a
E20a
E20a F05 F06 F07
EQUALIZER TREBLE: W 50KΩ
E21 E21a F05 F06 F07
FREQUENCY: A 50KΩ
Bridge Assembly: BPZ-8 (Gold)
E11
Jack Installation
F12
Replacement nut is supplied without string slot.
B01
B02
F17
F16
F15
F14
F14
F13
F12a

BB NE2
3
: New Parts RANK: Japan only
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OVERALL ASSEMBLY BB NE2
A01 Neck Assembly WHITE
A01 Neck Assembly BLACK
D01 Body
E01 Tuning Machine Assembly GB72L (Gold) 3
E02 Tuning Machine Assembly GB72 (Gold) 2
E03 Round Head Wood Screw 2.4X10 (Gold) 5 02
E08 Nut Bone 43mm 10
E11 Bridge Assembly BPZ-8 (Gold) 5
E12 Flat HeadTapping Screw 3.5X30 (Gold) 10
E14 Strings H4050 1set (AA82119)
E17 Strap Button EP-B2 (Gold) 2 02
E18 Oval Head Tapping Screw 3.5X25 (Gold) 2 02
E19 Spacer Felt (Black) 201
E20 Metal Knob Assembly VK3 (GG) BALANCER,VOLUME,EQUALIZER 5
E20a Set Screw 4.0X6 (Gold) 5
E21 Resin Knob Assembly LEX B-18 FREQUENCY 07
E21a Set Screw 3.0X4 (Black)
E23 Back Cover Electrical (Black)
E24 Oval Head Wood Screw 2.7X13 FCM3BL Black 5 03
F01 Circuit Board BB NE2
F02 Box for Dry Cell with Battery Cord 07
F03 Electrical Unit (Switch) (QC64300)
F03a Toggle Switch Black MID-CUT ON-OFF SW 08
F04 Pan Head Tapping Screw 3.0X6 FCM3BL Black 2
F05 Hexagonal Nut with Volume 6
F06 Flat Washer with Volume 6
F07 Toothed Lock Washer with Volume 6
F08 Hexagonal Nut with Switch
F09 Flat Washer with Switch
F10 Toothed Lock Washer with Switch
F11 Lead Wire 1set
F12 Electrical Unit(Jack Assy) (QC64430)
F12a Jack ST Open Type Gold 04
F13 Jack Panel SpCC (Gold)
F14 Oval HeadTapping Screw 2.6X12 (Gold) 3
F15 Hexagonal Nut Gold
F16 Toothed Lock Washer 10S 01
F17 Flat Washer Gold
G01 Pickup Assembly FRONT
G03 Oval Head Wood Screw 2.6X30 FCM3BL Black 4
G04 Pickup Cushion 02
G06 Pickup Assembly REAR
G08 Oval Head Wood Screw 2.6X30 FCM3BL Black 4
G09 Pickup Cushion 02
H01 Accessory Unit G-1 1set 07
Cord D 05
Wrench #5
Wrench #1.5
Box Wrench
H02 Battery 6LR61 (QC65770)
I08 Hard Case GB25 (2404670)
Bridge Assembly BPZ-8 (Gold) 5
B01 Pan Head Screw 3.0X40 FCM3BL Black 5 01
B02 Spring Black 501
--
--
--
QC648000
QC648100
03704070
QC428000
QC648200
QC443000
--
QC224600
03706630
VB793700
QC680600
--
QC205800
--
QC648400
EB620020
QC642800
VK505700
--
QC643800
AAX30750
--
--
--
--
--
--
QC648500
--
VS001100
QC649200
AAX30760
AAX30770
ET800180
AAX30780
QC644900
AAX30790
QC232300
QC645000
AAX30790
QC232300
QC354000
QA262600
--
--
--
--
--
QC648200
EA330400
VJ402400
REF NO.
PART NO. DESCRIPTION REMARKS
QTY RANK

BB NE2
4
ELECTRICAL PARTS
: New Parts RANK: Japan only
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ELECTRICAL PARTS BB NE2
Circuit Board BB NE2 (QC64290)
Circuit Board BB NE2 (QC64290)
Hexagonal Nut 606
C01 Tantalum Capacitor 0.1uF/16V 02
C03 Tantalum Capacitor 0.1uF/16V 02
C05 Electrolytic Capacitor 22uF/16V 05
C06 Electrolytic Capacitor 22uF/16V 05
C21 Electrolytic Capacitor-BP 1uF/50V BP 4X7 NC 01
C22 Mylar Capacitor 1800pF
C23 Mylar Capacitor 0.027uF 01
C24 Mylar Capacitor 0.1uF 01
C31 Electrolytic Capacitor 10uF/16V 01
C32 Ceramic Capacitor 0.01uF 01
C33 Electrolytic Capacitor 22uF/16V 05
C34 Electrolytic Capacitor 10uF/16V 01
C35 Ceramic Capacitor 0.01uF 01
C36 Electrolytic Capacitor 10uF/16V 01
C37 Ceramic Capacitor 0.01uF 01
C38 Electrolytic Capacitor 10uF/16V 01
C39 Electrolytic Capacitor 1uF/50V 01
C40 Electrolytic Capacitor 1uF/50V 01
C41 Ceramic Capacitor 0.01uF 01
C42 Ceramic Capacitor 0.01uF 01
C51 Ceramic Capacitor 100pF 01
C52 Ceramic Capacitor 100pF 01
C53 Electrolytic Capacitor 22uF/16V 05
C61 Electrolytic Capacitor 0.47uF/50V 01
C62 Electrolytic Capacitor 0.47uF/50V 01
C71 Ceramic Capacitor 47pF 01
C72 Mylar Capacitor 0.027uF 01
C73 Mylar Capacitor 0.033uF 03
C81 Mylar Capacitor 2200pF 01
C82 Mylar Capacitor 1500pF 01
C83 Ceramic Capacitor 100pF 01
C84 Ceramic Capacitor 330pF 01
C85 Ceramic Capacitor 330pF 01
CN1 Connector 2P B2B-XH-A to Front Pickup 01
CN2 Connector 2P B2B-XH-A to Rear Pickup 01
CN3 Connector 4P B4B-XH-A to Output Jack 01
CN4 Connector 2P B2B-XH-A to Battery 01
CN5 Connector 3P B3B-XH-A to MID-CUT Switch 01
D01 Diode E-301 05
D03 Diode E-301 05
D05 Diode 1SR139-100 01
IC1 IC OP200GP OP AMP 12
IC2 IC OP200GP OP AMP 12
IC3 IC TL062CP OP AMP 07
IC4 IC TC7662BEPA REGULATOR 10
IC4 IC ICL7660SIPA 10
L1-4 Coil ELEXG101KA 100uH 04
Q01 FET 2SK30ATM(O) 04
Q03 FET 2SK30ATM(O) 04
R01 Carbon Resistor 1M 1/6W J 01
R03 Carbon Resistor 1M 1/6W J 01
R05 Carbon Resistor 2.2M 1/6W J 03
R07 Carbon Resistor 2.2M 1/6W J 03
R09 Carbon Resistor 6.8K 1/6W J 01
R11 Carbon Resistor 6.8K 1/6W J 01
R13 Carbon Resistor 10K 1/6W J 01
R14 Carbon Resistor 10K 1/6W J 01
R15 Carbon Resistor 12K 1/6W J 01
R16 Carbon Resistor 12K 1/6W J 01
R21 Carbon Resistor 1K 1/6W J 01
R22 Carbon Resistor 100K 1/6W J 01
R23 Carbon Resistor 33K 1/6W J 01
R24 Carbon Resistor 15K 1/6W J 01
R25 Carbon Resistor 3.9K 1/6W J 01
R26 Carbon Resistor 3.9K 1/6W J 01
QC642800
QC642800
QC434900
FP355100
FP355100
FX804200
FX804200
FZ004240
UA153180
UA154270
UA155100
UI137100
FG444100
FX804200
UI137100
FG444100
UI137100
FG444100
UI137100
UI166100
UI166100
FG444100
FG444100
FG212100
FG212100
FX804200
UI165470
UI165470
FG211470
UA154270
UA154330
UA153220
UA153150
FG212100
FG212330
FG212330
LB918020
LB918020
LB918040
LB918020
LB918030
IX808800
IX808800
QC183900
IX808770
IX808770
IG070700
IX808780
IX808780
GX804490
IX808790
IX808790
HF559100
HF559100
HF559220
HF559220
HF556680
HF556680
HF557100
HF557100
HF557120
HF557120
HF556100
HF558100
HF557330
HF557150
HF556390
HF556390
REF NO.
PART NO. DESCRIPTION REMARKS
QTY RANK




BB NE2
5
: New Parts RANK: Japan only
*
REF NO.
PART NO. DESCRIPTION REMARKS
QTY RANK
R27 Carbon Resistor 470K 1/6W J 03
R31 Carbon Resistor 33K 1/6W J 01
R32 Carbon Resistor 27K 1/6W J 01
R51 Carbon Resistor 47K 1/6W J 01
R52 Carbon Resistor 47K 1/6W J 01
R53 Carbon Resistor 33K 1/6W J 01
R54 Carbon Resistor 33 1/6W J 03
R55 Carbon Resistor 18K 1/6W J 01
R56 Carbon Resistor 22K 1/6W J 01
R57 Carbon Resistor 33 1/6W J 03
R61 Carbon Resistor 680 1/6W J 01
R62 Carbon Resistor 8.2K 1/6W J 01
R63 Carbon Resistor 1.8K 1/6W J 01
R64 Carbon Resistor 68K 1/6W J 01
R65 Carbon Resistor 47K 1/6W J 01
R71 Carbon Resistor 33 1/6W J 03
R72 Carbon Resistor 22K 1/6W J 01
-75 Carbon Resistor 22K 1/6W J 01
R76 Carbon Resistor 1K 1/6W J 01
R81 Carbon Resistor 33K 1/6W J 01
R82 Carbon Resistor 47K 1/6W J 01
R83 Carbon Resistor 10K 1/6W J 01
R84 Carbon Resistor 10K 1/6W J 01
R85 Carbon Resistor 22K 1/6W J 01
R86 Carbon Resistor 10K 1/6W J 01
R87 Carbon Resistor 3.3K 1/6W J 01
R88 Carbon Resistor 47K 1/6W J 01
R89 Carbon Resistor 47K 1/6W J 01
VR1 Rotary Variable Resistor RK14K1240B24 20KB BALANCER 04
VR2 Rotary Variable Resistor RK14K1240A53 5KA VOLUME 04
VR3 Rotary Variable Resistor RK14K1240W54 50KW EQUALIZER BASS 04
VR4 Rotary Variable Resistor RK14K1240W54 50KW EQUALIZER MID 04
VR5 Rotary Variable Resistor RK14K1240W54 50KW EQUALIZER TREBLE 04
VR6 Rotary Variable Resistor RK14K1240A54 50KA FREQUENCY
HF558470
HF557330
HF557270
HF557470
HF557470
HF557330
HF554330
HF557180
HF557220
HF554330
HF555680
HF556820
HF556180
HF557680
HF557470
HF554330
HF557220
HF557220
HF556100
HF557330
HF557470
HF557100
HF557100
HF557220
HF557100
HF556330
HF557470
HF557470
AAX14660
AAX14670
AAX14680
AAX14680
AAX14680
AAX30800

BB NE2
6
CIRCUIT BOARD
EPA-QC64280-2
Component side
Pattern side
VOLUME
BALANCER
to REAR PICKUP
to OUTPUT JACK
to FRONT PICKUP
to BATTERY 9V
to MID-CUT SWITCH
EQUALIZER
BASS EQUALIZER MID EQUALIZER TREBLE
FREQUENCY

BB NE2
7
CIRCUIT DIAGRAM
OP AMPOP AMP
OP AMP
REGULATOR
(VOLUME)
Center
(BALANCER)
FRONT PICKUP REAR PICKUP
Electrolytic Capacitor Electrolytic Capacitor (Audio) Tantalum Capacitor Mylar Capacitor Ceramic Capacitor
STE-BAJJ-06

BB NE2
8
FRONT PICKUP REAR PICKUP
M2
M1
M2M2
M1M1
M2
M1
BR
BL
BL
BL
BL
BL
BL
RE
GY WH
VOLUME
A 5KΩ
FREQUENCY
A 50KΩ
EQUALIZER
TREBLE
W 50KΩ
EQUALIZER
MID
W 50KΩ
EQUALIZER
BASS
W 50KΩ
BALANCER
B 20KΩ
Box for Dry Cell
MID-CUT
SWITCH
BE
RE
BL
RE
WH
WH
OUTPUT JACK
to bridge ground
Start
End
Start
End
Signal (WH)
Ground
M2 M1
Start
End
Start
End
Signal (WH)
Ground
M2 M1
WIRING
SPECIFICATIONS
STANDARD SPECIFICA TIONS
Scale Length..............................864.0mm
Body-Neck Construction .........Through Neck
Length........................................ 1156.5mm
Width ......................................... 324.5mm
Net Weight ................................ 4.3kg
COLOR
Body
WH ........................................... White
BL ............................................. Black
Neck
WH ........................................... White
BL ............................................. Black
BODY
Material...................................... Maple + Alder
Body Depth ............................... 51mm
FINGERBOARD
Material...................................... Ebony
Fingerboard Width................... 0-F 43.0 mm, 12-F 64.7 mm
No. of Frets................................ 24
NECK
Material...................................... Maple/Mahogany
Neck Thickness ........................ 1-F 20.3 mm, 12-F 23.7 mm
PARTS
Hardware ................................... Gold Plated
Nut.............................................. Bone
Bridge ........................................ BPZ-8: Gold
Strings........................................ H4050
CONTROLS
Volume ....................................... A 5KΩx 1
Balance ...................................... B 20KΩx 1
Equalizer.................................... W 50KΩx 3 (BASS, MID, TREBLE)
Frequency .................................A 50KΩx 1
MID-CUT Switch ...................... Toggle Switch (ON-OFF)
PICKUPS
Front/Rear ................................ Stacked Type
Magnet
Front/Rear .............................. Alnico 5