Yamaha RBX774, RBX775 User Manual
ELECTRIC BASS
RBX774/RBX775
SERVICE MANUAL
This document is printed on chlorine free (ECF) paper with soy ink.
011634
EG
RBX775RBX774
CONTENTS
OVERALL ASSEMBLY ............................................ 2
ELECTRICAL PARTS ............................................. 6
CIRCUIT BOARD ............................................ 7
CIRCUIT DIAGRAM .................................................. 8
WIRING .................................................................... 9
SPECIFICATIONS ............................................... 10
HAMAMATSU, JAPAN
0.768K-072 Printed in Japan ’02.03
RBX774/RBX775
OVERALL ASSEMBLY
RBX774
E01 E04 E04
Bridge Assembly: BPZ-8 Diecast (QC674000)
E18
B01
B02
A01b
E21
A01
E10
E02
Jack Installation
F11
A01a
A seal is attached
on the rear of the neck.
RBX 774
F11a
F11b
E08 E09
G01 G04
G06 G09
E25
D01
E08
E09
E11 E12
G03
G08
E26
E27
E11
E14
F06 F07
E31 E33
E28
M.VOLUME: A 20KΩ
E28
M.TONE: A 20KΩ
F11c
E28a
E28a
F01 F17
F11
F01a
F08 F09 F10
F01a
F08 F09 F10
F01b
E18
E19
F05
E25
E27
E26
2
F04
F01c
F11
F11a F11b F11c
F03
RBX774
RBX774/RBX775
REF NO.
PART NO. DESCRIPTION REMARKS
QTY
OVERALL ASSEMBLY RBX774
A01 Neck Assembly BL with Head Panel
*
*
*
*
*
*
*
*
*
*
*
*
*
*
AAX34350
A01 Neck Assembly FSL with Head Panel
AAX34360
A01 Neck Assembly FLB with Head Panel
AAX34370
A01a Seal (QC67460)
A01b Head Panel Natural (QC67250)
D01 Body
E01 Tuning Machine Assembly RM1243 (Black) Right 2 09
E02 Tuning Machine Assembly RM1243L (Black) Left 2 09
E04 Round Head Wood Screw 2.4X10 FCM3BL Black 4 01
E08 Rod Cover Black
E09 Round Head Wood Screw 2.7X13 FCM3BL Black 2 01
E10 Nut Urea 40mm (Black)
E11 Neck Joint Bushing Black 404
E12 Oval Head Tapping Screw 4.5X35 FCM3BL Black 2
E14 Oval Head Tapping Screw 4.5X40 FCM3BL Black 2
E18 Bridge Assembly BPZ-8 (Black) Diecast 4
E19 Flat Head Tapping Screw 3.0X25 FCM3BL Black 8
E21 Strings H4030 1set(4pcs) (AA80931)
E25 Strap Button SG-type (Black) 2
E26 Oval Head Tapping Screw 3.5X25 FCM3BL Black 2 01
E27 Spacer Felt (Black) 201
E28 Knob Assembly Black M.VOLUME,M.TONE 2 07
E28a Screw M3.0X6 ZMC-BL Black 2
E31 Back Cover Electrical (Black)
E33 Oval Head Wood Screw 2.7X13 FCM3BL Black 4 03
F01 Electrical Unit (QC67440)
F01a Circuit Board with VOL,TONE VR
F01b Toggle Switch 3P DM-20 PICKUP
F01c Toggle Switch (Mini) ON-ON (Black) BOOST (ON-OFF) 06
F03 Knob, Pickup Switch SGV-type FCM3BL Black
F04 Nut Black with Pickup Switch
F05 Nut Black with Boost Switch
F06 Box for Dry Cell 04
F07 Pan Head Tapping Screw 3.0X8 FCM3BL Black 2
F08 Hexagonal Nut with Volume 2
F09 Flat Washer with Volume 2
F10 Toothed Lock Washer with Volume 2
F11 Jack Gold 07
F11a Hexagonal Nut
F11b Rubber Ring
F11c Toothed Lock Washer
F17 Round Head Wood Screw 2.7X13 FCM33G for Earth Lug (Chrome) 2 03
--
--
--
QC279100
QC279800
VD763600
QC672700
03704270
QC672600
QC205200
QC685100
QC685200
QC674000
QC685300
-QC656200
QC613000
VB793700
QC573500
AAX35960
QC674300
EB620020
-QC687400
QC687500
QC677900
QC685400
--
-QA223300
QC025000
--
--
-QA209900
--
--
-EA620060
RANK
G01 Pickup Assembly H/B (Black) FRONT 13
QC460500
G03 Pan Head Tapping Screw 2.6X35 FCM3BL Black 3 02
VJ388800
G04 Pickup Cushion 55X25X18 02
QC556400
G06 Pickup Assembly H/B (Black) REAR 13
QC460600
G08 Pan Head Tapping Screw 2.6X35 FCM3BL Black 3 02
VJ388800
G09 Pickup Cushion 55X25X18 02
QC556400
H01 Accessory Unit G-1 1set 07
QC354000
QA262600
H02 Battery 9V Dry Cell (PC10008)
*
QC674000
B01 Pan Head Screw 3.0X40 FCM3BL Black 4 01
EA330400
B02 Spring Black 401
VJ402400
: New Parts RANK: Japan only
Cord D 05
Wrench #1.5
--
Wrench #5
--
--
Bridge Assembly BPZ-8 (Black) Diecast 4
3
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