Page 1
ELECTRIC BASS
BB404F
SERVICE MANUAL
EG
011658
BB404F (YNS)
CONTENTS
OVERALL ASSEMBLY ............................................ 2
CIRCUIT DIAGRAM .................................................. 4
WIRING .................................................................... 4
SPECIFICATIONS ................................................. 5
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K47 ’02.11
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BB404F
OVERALL ASSEMBLY
Bridge Assembly: Diecast (QC347700)
E18
B02
E01 E04
E10
E21
E07
E04
E02
E05 E06
A01a
A seal is attached
on the rear of the neck.
BB 404F
E11
B01
B03
D01
E12
E11
G08
G09G06
G03
G04G01
E25
A01
E26
E27
F11
Jack Installation
F11a
F11b
E08
E09
E31
E33
E28
F01a
F08
F09 F10
FRONT VOLUME: 15A 500KΩ
F01
F11c
F11
E19
E18
E25
E27
E26
2
E28
F01a
F08
F09 F10
REAR VOLUME: 15A 500KΩ
F11
F11a
F11b F11c
E28
F01b
F01c
F08
F09 F10
MASTER TONE: 05A 250KΩ
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BB404F
REF NO.
PART NO. DESCRIPTION REMARKS
QTY
OVERALL ASSEMBLY BB404F
A01 Neck Assembly YNS
*
*
AAX43800
A01 Neck Assembly BL
AAX43810
A01a Seal (QC73710)
D01 Body
E01 Tuning Machine Assembly RM1243C (Chrome) RIGHT 2 09
E02 Tuning Machine Assembly RM1243CL (Chrome) LEFT 2 09
E04 Round Head Wood Screw 2.4X10 FCM33G Chrome 4 01
E05 String Guide Chrome 05
E06 Spacer Black 01
E07 Round Head Wood Screw 2.7X20 FCM33G Chrome 02
E08 Rod Cover Black 03
E09 Oval Head Wood Screw 2.1X10 FCM3BL Black 01
E10 Nut Urea 40mm (Ivory) 07
E11 Neck Plate Chrome 03
E12 Oval Head Tapping Screw 4.0X45 FNM33G Nickel 4 01
E18 Bridge Assembly Diecast (Chrome) 10
E19 Oval Head Tapping Screw 3.0X25 FNM33G Nickel 4 04
E21 Strings H4030 1set (QC35100)
E25 Strap Button ST-type (Chrome) 2 04
E26 Oval Head Tapping Screw 3.0X25 FNM33G Nickel 2 04
E27 Spacer Felt (Black) 201
E28 Knob Black
E31 Back Cover Electrical (Black) 05
E33 Oval Head Wood Screw 2.7X13 FCM3BL Black 4 03
F01 Electrical Unit (QC26630)
F01a Variable Resistor 15A 500K ohm
F01b Variable Resistor 05A 250K ohm MASTER TONE 03
F01c Mylar Capacitor 0.047uF 50 J 01
F08 Hexagonal Nut 8S with Volume 3
F09 Flat Washer 8S with Volume 3
F10 Toothed Lock Washer 8S with Volume 3
F11 Jack Gold 07
F11a Hexagonal Nut
F11b Toothed Lock Washer
F11c Rubber Ring
--
--
QC207000
QC236900
EA620040
VB518600
VJ382000
03706370
CB821460
03706220
CB821090
AA819690
EN240060
QC347700
EN230140
-BB801510
EN230140
VB793700
CB807760
CB809560
EB620020
-HS120070
HS120100
UA154470
--
--
-QA209900
--
--
--
FRONT/REAR VOLUME, M.TONE
FRONT VOLUME, REAR VOLUME
303
203
RANK
G01 Pickup Assembly S/C KPBO (Black) FRONT
QC670100
G03 Pan Head Tapping Screw 2.6X35 FCM3BL Black 4 02
VJ388800
G04 Pickup Cushion 85X17X15 02
CB815450
G06 Pickup Assembly S/C KPBO (Black) REAR 09
QC670200
G08 Pan Head Tapping Screw 2.6X35 FCM3BL Black 4 02
VJ388800
G09 Pickup Cushion 85X17X15 02
CB815450
H01 Accessory Unit G-1 1set 07
QC354000
QA262600
AA804050
AA805430
QC347700
B01 Bridge Base Chrome 06
QC347900
B02 Bridge Piece Assembly 1,2 (Chrome) 1,2 Strings 2 05
NX818300
B03 Bridge Piece Assembly 3,4 (Chrome) 3,4 Strings 2 05
NX818310
: New Parts RANK: Japan only
Cord D 05
Wrench #1.5 01
Wrench #5 04
Bridge Assembly Diecast (Chrome) 10
3
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BB404F
CIRCUIT DIAGRAM
FRONT PICKUP
REAR PICKUP
FRONT VOLUME
3
2
1
15A 500KΩ
REAR VOLUME
3
2
1
15A 500KΩ
MASTER TONE
1
2
05A 250KΩ
3
OUTPUT
0.047uF
BPJJ-03
WIRING
Upper side: S
FRONT PICKUP
GY
REAR PICKUP
GY
BL
RE
WH
Upper side: N
BL
BL
RE
to bridge ground
BL
MASTER TONE
05A 250KΩ
FRONT VOLUME
15A 500KΩ
RE
REAR VOLUME
0.047uF
15A 500KΩ
OUTPUT JACK
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SPECIFICATIONS
STANDARD SPECIFICATIONS
Scale Length..............................863.6mm
Body-Neck Construction .........Bolt On
Length........................................ 1141.0mm
Width .........................................318.5mm
Net Weight ................................3.9kg
COLOR
Body
YNS .........................................Yellow Natural Satin
BL ............................................ Black
Neck
YNS .........................................Yellow Natural Satin
BL ............................................ Black
BODY
Material......................................Alder
Body Depth ...............................41mm
FINGERBOARD
Material......................................Rosewood
Fingerboard Width ................... 0-F 40.0mm, 12-F 56.4mm
NECK
Material......................................Maple
Neck Thickness ........................1-F 21.0mm, 12-F 24.4mm
PARTS
Hardware ................................... Chrome Plated
Nut..............................................Urea
Bridge ........................................Korea: Diecast (Chrome)
Strings........................................ H4030
CONTROLS
Volume ....................................... 15A 500KΩ x 2
Tone ...........................................05A 250KΩ x 1
PICKUPS
Front/Rear ................................ Single Coil
Magnet
Front/Rear ............................. Ferrite
BB404F
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 Califor nia 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 solder ing, 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.
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