ELECTRIC BASS
BBG5S
SERVICE MANUAL
CONTENTS
OVERALL ASSEMBLY
PARTS LIST
CIRCUIT BOARDS
IC BLOCK DIAGRAM
CIRCUIT DIAGRAM
............................................... 2
................................................ 3~4
........................................... 4
....................................... 4
.................................................... 5
WIRING
SPECIFICATIONS
....................................................................... 5
.................................................... 6
011429
EG
HAMAMATSU, JAPAN
0.9K-811
Printed in J apan ’98.10
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BBG5S
PARTS LIST
REF NO.
QTY RANK
PART NO. DESCRIPTION
OVERALL ASSEMBLY
DX809690 Neck Assembly
DX809700 Neck Assembly
DX809710 Neck Assembly
DX809720 Neck Assembly
REMARKS
BB G5S
SB
LPB
PSW
BL
*
*
*
*
A01
A01
A01
A01
A01a
--
Seal
(QC46070)
D02
--
Body
E01
E02
E04
E05
E06
E07
E08
E09
E10
E11
E12
E18
E19
E21
E25
E26
E27
E28
E31
E33
QC336300 Tuning Machine Assembly
QC336400 Tuning Machine Assembly
03704070 Round Head Wood Screw
VB518400 String Guide
VJ382000 Spacer
03706320 Oval Head Wood Screw
CB821460 Rod Cover
03706220 Oval Head Wood Screw
VB494400 Nut
RM1243 (GOLD)
RM1243L (GOLD)
2.4X10 GOLD
GOLD
3
2
5
2
2
2
09
09
05
01
BL
*
2.7X20 GOLD
BL
03
01
04
05
2.1X10 FCM3BL (BL)
43mm Ivory
GOLD
4.0X45 GOLD
BRASS (GOLD)
3.0X25 GOLD
H4050
GOLD
3.0X25 GOLD
BL
AA819960 Neck Plate
EN240050 Oval Head Tapping Screw
QC350600 Bridge Assembly
EN230130 Oval Head Wood Screw
4
6
12
02
--
Strings
1set
(AA82119)
(QC35480)
BB802460 Strap Button
EN230130 Oval Head Tapping Screw
VB793700 Spacer Felt
QC032200 Knob
VD955600 Back Cover
EB620020 Oval Head Wood Screw
2
2
2
4
02
02
01
06
05
03
H=16.5 (GOLD)
Electrical (BL)
2.7X13 FCM3BL (BL)
4
F01
--
Electrical Unit
F01a QC354700 Circuit Board Assembly
F01b QC259500 Variable Resistor
F01c QC259400 Variable Resistor
09
04
05
03
04
B20K ohm
A+C 500K ohm CC
2.7X13 FCM33G (CR)
VOLUME
BALANCE
For the earth lug installation
F03
F07
F08
EA620060 Round Head Wood Screw
QA223300 Box for Dry Cell
QC025000 Pan Head Tapping Screw
2
2
3.0X8 FCM3BL (BL)
F12a QA209900 Jack
07
G01 QC363300 Pickup Assembly
G03 VJ388800 Round Head Wood Screw
G04 CB815450 Pickup Cushion
G06 QC363400 Pickup Assembly
G08 VJ388800 Round Head Wood Screw
G09 CB815450 Pickup Cushion
Front
Rear
15
02
02
15
02
02
2.6X35 FCM3BL (BL)
85LX17WX15H
3
3
2.6X35 FCM3BL (BL)
85LX17WX15H
H01 QC354000 Accessory Unit
QC350600 Bridge Assembly
G-1
1set
07
BRASS (GOLD)
GOLD
1,2 (GOLD)
3,4,5 (GOLD)
12
07
06
06
B01
B02
B03
QC360800 Bridge Base
NX818280 Bridge Piece Assembly
NX818290 Bridge Piece Assembly
1,2
3,4,5
2
2
: New Parts
RANK : J apan only
NOTE : The parts list contenues to the next page.
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.
3
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BBG5S
REF NO.
QTY RANK
PART NO. DESCRIPTION
QC354700 Circuit Board Assembly
IG028400 IC
REMARKS
BB G5S
OP AMP
09
03
01
04
IC1
D1
NJM4558D-Y
1S1555
B50K ohm CC
IF000040 Diode
VR3,4 QC251700 Variable Resistor
TREBLE,BASS
: New Parts
RANK : J apan only
CIRCUIT BOARDS
TREBLE
BASS
to Volume
Component side
Component side
to Battery
to Balance
IC BLOCK DIAGRAM
NJM4558D-Y (IG028400)
Dual Operational Amplifier
+DC Voltage
Supply
Output A
1
2
3
4
+V
8
7
6
5
Inverting
Input A
Output B
+
-
Inverting
Input B
Non-Inverting
Input A
+
-
Non-Inverting
Input B
-DC Voltage Supply
-V
4
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BBG5S
OVERALL CIRCUIT DIAGRAM
FRONT PICKUP
BASS
Battery
DC 9V
BALANCE
A+C 500k
OUTPUT
JACK
REAR PICKUP
VOLUME
TREBLE
Electrolytic capacitor
Mylay capacitor
Ceramic capacitor
WIRING
FRONT PICKUP
REAR PICKUP
to rear pickup cavity
to front pickup cavity
to bridge ground
BL
BL
GY
VOLUME
B20K
BL
WH
RE
TREBLE
B50K
BL
BL
Box for dry cell
RE
RE
WH
WH
WH
BALANCE
A+C 500K
BASS
B50K
OUTPUT
5
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BBG5S
SPECIFICATIONS
STANDARD SP ECIFICATIONS
Scale Length .............................. 863.6mm
Body-Neck Construction ......... Bolt On
Length ........................................ 1145.6mm
Width ......................................... 327.3mm
Net Weight ................................ 4.0kg
COLOR
Body
SB ........................................... Sunburst
LPB ......................................... Lake Placid Blue
PSW........................................ Peal Snow White
BL ........................................... Black
Neck
SB ........................................... Sunburst
LPB ......................................... Lake Placid Blue
PSW........................................ Peal Snow White
BL ........................................... Black
BODY
Material...................................... Alder
Body Depth ............................... 41.0mm
FINGERBOARD
Material...................................... Rosewood
Fingerboard Width ................... 0-F 43.0mm, 12-F 65.0mm
No. of Frets ................................ 24
NECK
Material...................................... Maple
Neck Thickness ........................ 1-F 21.0mm, 12-F 24.4mm
P ARTS
Hardware ................................... Gold Plated
Nut.............................................. Urea
Bridge ........................................ BRASS : Gold
Strings ........................................ K4050
CONTROLS
Volume ....................................... B20k ohm x 1
Tone ........................................... B50k ohm x 2
Balance ...................................... A+C 500k ohm x 1
P ICKUP S
Front/ Rear ................................ Humbucking
Magnet
Front/ Rear ................................ Ferrite
6
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