ELECTRIC BASS
TRB-6II
SERVICE MANUAL
CONTENTS
OVERALL ASSEMBLY······································································ 2
ELECTRICAL PARTS········································································ 4
CIRCUIT BOARD ··············································································· 6
CIRCUIT DIAGRAM··········································································· 7
WIRING································································································ 8
SPECIFICATIONS·············································································· 8
011391
EG
HAMAMATSU, JAPAN
1.25K-611
Printed in Japan '98.02
TRB-6II
REF NO. PART NO. DESCRIPTION
OVERALL ASSEMBLY
A01 DX809400 Neck Assembly
A01 DX809410 Neck Assembly
A01 DX809420 Neck Assembly
A01a AA809390 Square Washer
REMARKS
QTY RANK
TRB-6II
AMT
*
*
*
MGB
TLBIII
01
D01
Body
E01 QC028300 Tuning Machine Assembly
E01 QC028400 Tuning Machine Assembly
E02 EQ624100 Round Head Wood Screw
E07 QC428000 Nut
E08 QC205200 Neck Joint Bushing
E09 VI825000 Oval Head Tapping Screw
E11 QC425600 Bridge Assembly
GB70L+GB7 (GOLD)
GB70+GB7 (GOLD)
2.4X10 GOLD
52mm
3
3
6
08
08
02
(0370407)
*
*
(BL)
6
6
04
01
5.0X40 FCM3BL
BPX-6D (GOLD)
4.0X35 GOLD
H6010
EP-B2 (GOLD)
3.5X25 GOLD
(BL)
E12 QA170100 Oval Head Tapping Screw
5
01
E14
Strings
1set
(QC02460)
(0370663)
E18 QC224600 Strap Button
E19 ER635250 Oval Head Tapping Screw
E20 VB793700 Spacer Felt
E22 QC205700 Knob Assembly
E23 QC205800 Knob Assembly
E24 QC429500 Sheet, Instruction
E26 QC425800 Back Cover
2
2
2
2
3
02
02
01
07
07
LEX B-22
LEX B-18
VOLUME, PANPOT
BASS, TREB, MID
*
*
Electrical (BL)
E27 EB620020 Oval Head Wood Screw
2.7X13 FCM3BL
5
2
03
07
F01 QC432100 Electrical Unit
F02 VK505700 Box for Dry Cell
F04 QC025000 Pan Head Tapping Screw
F08 QC437300 Electrical Unit (Jack Assy)
(1) 3-BAND EQ.
(2)
3.0X8 FCM3BL
(3)
*
*
G01 QC429100 Pickup Assembly
G02 QC325300 Pickup Spring
G03 EM830230 Pan Head Tapping Screw
G06 QC429200 Pickup Assembly
G07 QC325300 Pickup Spring
Front
Rear
*
*
3
3
3.0X30 FCM3BL
3.0X30 FCM3BL
01
*
*
3
3
G08 EM830230 Pan Head Tapping Screw
01
07
H01 QC354000 Accessory Unit (G-1)
1set
QC425600 Bridge Assembly
B01 QC425700 Bridge Base
B02 QC425300 Bridge Piece Assembly
B03 EA330400 Pan Head Screw
B04 AX818240 Spring
BPX-6D(GOLD)
(GOLD)
(GOLD) with screw
3.0X40 FCM3BL
(BL) 30mm
P=18.0
*
*
*
with set screw (M3X12)
6
6
3
3
01
1-3 string
4-6 string
*
*
B04 AX818250 Spring
(BL) 25mm
RANK:Japan only
: New Parts
*
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
TRB-6II
ELECTRICAL PARTS
REMARKS
REF NO. PART NO. DESCRIPTION
QTY RANK
ELECTRICAL PARTS
QC432100 Electrical Unit
IX808770 IC
IG070700 IC
IG070700 IC
IX808780 IC
3-BAND EQ.
OP200GP
TL062CP
*
*
OP AMP
OP AMP
OP AMP
IC1
IC2
IC3
IC4
07
07
TL062CP
TLC7662BEPA
2SK30ATM(O)
E-301
*
*
*
Q1-4 IX808790 FET
D1-4 IX808800 Diode
D5
QC183900 Diode
1SR139-100
EWCE6AF22B24 20K
EWCE6AF22A53 5K
EWCE6AF22B54 50K
EWCE6AF22B54 50K
EWCE6AF22B54 50K
EVND8AA0 BQ3 4.7K
EVND8AA0 BQ3 4.7K
B2B-XH-A 2P
B2B-XH-A 2P
B4B-XH-A 4P
B2B-XH-A 2P
ELEXG101KA 100uH
0.1uF/16V (35V)
22u/16V R3A-16V220
22u/16V R3A-16V220
10u/16V RC3-16V100
0.01uF
22u/16V R3A-16V220
10u/16V RC3-16V100
0.01uF
10u/16V RC3-16V100
0.01uF
10u/16V RC3-16V100
1u/16V RC3-50V010M
1u/16V RC3-50V010M
0.01uF
0.01uF
100pF
100pF
22u/16V R3A-16V220
0.033uF
0.1uF
1u/16V RC3-50V010M
0.022uF
0.022uF
100pF
1000pF
2200pF
1500pF
100pF
330pF
330pF
1.0M 1/6W J
2.2M 1/6W J
6.8K 1/6W J
01
PANPOT
VOLUME
VR1 HX809140 Rotary Variable Resistor
VR2 HX809150 Rotary Variable Resistor
VR3 HX809160 Rotary Variable Resistor
VR4 HX809160 Rotary Variable Resistor
VR5 HX809160 Rotary Variable Resistor
VR7 HX809170 Trimmer Potentiometer
VR8 HX809170 Trimmer Potentiometer
CN1 LB918020 Connector
CN2 LB918020 Connector
CN3 LB918040 Connector
CN4 LB918020 Connector
L1-4 GX804490 Ciol
*
*
*
*
*
*
*
EQUALIZER BASS
EQUALIZER MID
EQUALIZER TREBLE
FRONT PICKUP
REAR PICKUP
OUTPUT JACK
BATTERY
01
01
01
01
*
C1-4 FP355100 Tuntalum Capacitor
C05 FX804200 Electlytic Cap.
C06 FX804200 Electlytic Cap.
C31 UI137100 Electlytic Cap.
C32 FG444100 Ceramic Capacitor
C33 FX804200 Electlytic Cap.
C34 UI137100 Electlytic Cap.
C35 FG444100 Ceramic Capacitor
C36 UI137100 Electlytic Cap.
C37 FG444100 Ceramic Capacitor
C38 UI137100 Electlytic Cap.
C39 UI166100 Electlytic Cap.
C40 UI166100 Electlytic Cap.
C41 FG444100 Ceramic Capacitor
C42 FG444100 Ceramic Capacitor
C51 FG212100 Ceramic Capacitor
C52 FG212100 Ceramic Capacitor
C53 FX804200 Electlytic Cap.
C61 UA154330 Mylar Capacitor
C62 UA155100 Mylar Capacitor
C63 UI166100 Electlytic Cap.
C71 UA154220 Mylar Capacitor
C72 UA154220 Mylar Capacitor
C73 FG212100 Ceramic Capacitor
C74 UA153100 Mylar Capacitor
C81 UA153220 Mylar Capacitor
C82 UA153150 Mylar Capacitor
C83 FG212100 Ceramic Capacitor
C84 FG212330 Ceramic Capacitor
C85 FG212330 Ceramic Capacitor
R1-4 HF559100 Carbon Resistor
R5-8 HF559220 Carbon Resistor
R09 HF556680 Carbon Resistor
R10 HF556470 Carbon Resistor
R11 HF556680 Carbon Resistor
R12 HF556470 Carbon Resistor
R13 HF557100 Carbon Resistor
R14 HF557100 Carbon Resistor
R15 HF556470 Carbon Resistor
R16 HF556470 Carbon Resistor
R21 HF558470 Carbon Resistor
R23 HF557220 Carbon Resistor
R31 HF557330 Carbon Resistor
R32 HF557270 Carbon Resistor
02
*
*
01
01
*
01
01
01
01
01
*
*
01
01
01
01
*
*
01
*
01
01
01
01
*
*
01
01
01
*
*
01
01
4.7K 1/6W J
6.8K 1/6W J
4.7K 1/6W J
10K 1/6W J
10K 1/6W J
4.7K 1/6W J
4.7K 1/6W J
470K 1/6W J
22K 1/6W J
*
*
01
01
*
*
*
*
*
*
33K 1/6W J
27K 1/6W J
RANK:Japan only
: New Parts
*
4
TRB-6II
REF NO. PART NO. DESCRIPTION
R51 HF557470 Carbon Resistor
R52 HF557470 Carbon Resistor
R53 HF557220 Carbon Resistor
R54 HF554330 Carbon Resistor
R55 HF557180 Carbon Resistor
R56 HF557220 Carbon Resistor
R57 HF554330 Carbon Resistor
R61 HF557330 Carbon Resistor
R62 HF557330 Carbon Resistor
R63 HF557120 Carbon Resistor
R64 HF557680 Carbon Resistor
R65 HF557470 Carbon Resistor
R71 HF558100 Carbon Resistor
R72 HF557510 Carbon Resistor
R73 HF557270 Carbon Resistor
R74 HF557100 Carbon Resistor
R75 HF557100 Carbon Resistor
R76 HF557180 Carbon Resistor
R77 HF557100 Carbon Resistor
R78 HF556220 Carbon Resistor
R79 HF557470 Carbon Resistor
R80 HF557470 Carbon Resistor
R81 HF557330 Carbon Resistor
R82 HF557470 Carbon Resistor
R83 HF557100 Carbon Resistor
R84 HF557100 Carbon Resistor
R85 HF557220 Carbon Resistor
R86 HF557100 Carbon Resistor
R87 HF556330 Carbon Resistor
R88 HF557470 Carbon Resistor
R89 HF557470 Carbon Resistor
QC434900 Hexagonal Nut
REMARKS
QTY RANK
47K 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
33K 1/6W J
12K 1/6W J
68K 1/6W J
47K 1/6W J
100K 1/6W J
51K 1/6W J
27K 1/6W J
10K 1/6W J
10K 1/6W J
18K 1/6W J
10K 1/6W J
2.2K 1/6W J
47K 1/6W J
47K 1/6W J
33K 1/6W J
47K 1/6W J
10K 1/6W J
10K 1/6W J
22K 1/6W J
10K 1/6W J
3.3K 1/6W J
47K 1/6W J
47K 1/6W J
01
01
*
01
*
*
*
*
*
01
01
*
01
*
*
*
*
RANK:Japan only
: New Parts
*
5
TRB-6II
CIRCUIT BOARD
BASS
MID
TREB
PANPOT
Battery 9V
NECK
PICKUP
BRIDGE
PICKUP
OUTPUT jack
VOLUME
REAR PICKUP
FRONT PICKUP
Component side
Pattern side
4NB70-QC43210
6
TRB-6II
CIRCUIT DIAGRAM
D 5
L 1
1 0 0
H
2 2 / 1 6 V
C 3 4
+
+
1 0 / 1 6 V
C 3 3
C 3 5
0 . 0 1
0 . 0 1
0 . 0 1
C 4 1
0 . 0 1
C 4 2
C 3 7
C 3 6
C 3 8
1 0 / 1 6 V
+
+
1 0 / 1 6 V
C 3 9
+
1
/ 5 0 V
R 5 6
2 2 K
IC4
TC7662
C 4 0 +
1
/ 5 0 V
R 8 7
3 . 3 K
R 7 8
2 . 2 K
R 8 8
4 7 K
4 7 K R 8 9
R 6 5
4 7 K
R 6 4
6 8 K
R 7 9
4 7 K R 8 0
3 3 0 p
4 7 K
C 8 5
C 7 4
3 3 0 p
C 8 4
1 0 0 0 p
R 5 7
3 3
0 . 0 3 3
C 6 1
R 8 1
3 3 K
R 7 2
5 1 K
0 . 1
0 . 0 2 2
C 7 2
2 7 K
R 7 3
4 7 K
R 8 2
C 6 2
C 3 2
C 3 1
0 . 0 1
+
R 3 1
3 3 K
1 0 / 1 6 V
R 3 2 2 7 K
V R 1
R 1 3
1 0 K
R 1 4
1 0 K
E 3 0 1
E 3 0 1
E 3 0 1
E 3 0 1
D 4
R 8
D 2
R 6
D 3
R 7
D 1
R 5
2 . 2 M
2 . 2 M
2 . 2 M
2 . 2 M
1 M
R 4
1 M
R 1
1 M
R 2
1 M
R 3
4 7 0 K
R 2 1
7
TRB-6II
WIRING
FRONT PICKUP
REAR PICKUP
to bridge GND
VOLUME
5k
PANPOT
20k
4
7
2
2
Box for dry cell
Q C 4 3 2 0 0
Q C 4 3 2 2 0
TREB
OUTPUT jack
Q C 4 3 2 1 0
MID
BASS
Equalizer
50k x3
SPECIFICATIONS
STANDARD SPECIFICATIONS
FINGERBOARD
·····················································································
····································································································
Scale Length
889.0mm
Material
Rosewood
···············································
··································································
Body-Neck Construction
Bolt On
Fingerboard Width
No.of Frets
0-F 52.0mm,12-F 79.6mm
24
···························································································
········································································································
Length
Width
1180.0mm
355.0mm
5.2kg
NECK
···········································································································
··························································································
····································································································
Material
Maple
············································································
Net Weight
COLOR
Body
Neck Thickness
PARTS
1-F 20.5mm,12-F 24.0mm
································································································
Hardware
Gold Plated
Bone
BPX-6D:Gold
YAMAHA H6010
····································································································
···················································································································
·········································································································
AMT
MGB
Amber Burst
Magenta Burst
Nut
Bridge
Strings
····································································································
········································································································
···································································································
TLBIII
Neck
AMT
MGB
Translucent Blue
CONTROLS
·····································································································
·····································································································
································································································
Volume
Balance
5k X1
20k X1
50k X3
····································································································
Amber Burst
Magenta Burst
Equalizer
PICKUPS
····································································································
····························································································
Front/Rear
Magnet
Double Coil
···································································································
TLBIII
Translucent Blue
····················································································
Front/Rear
AlnicoV
BODY
····································································································
Material
Light Ash
41.0mm
························································································
Body Depth
8
|