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RBX774/RBX775

6

:  New Parts

RANK:  Japan only

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ELECTRICAL PARTS

RBX774/RBX775

Circuit Board

(QC68780)

Circuit Board

(QC68780)

C01

Mylar Capacitor

0.047uF/50V

01

C02

Ceramic Capacitor (chip)

47pF/50V J

01

C03

Electrolytic Capacitor

1uF/50V

01

C04

Mylar Capacitor

0.068uF/50V

02

C05

Mylar Capacitor

0.068uF/50V

02

C06

Mylar Capacitor

5600pF/50V

C07

Electrolytic Capacitor

1uF/50V

01

C08

Mylar Capacitor

2200pF/50V

01

C09

Mylar Capacitor

0.22uF/50V

C10

Electrolytic Capacitor

10uF/16V

01

C11

Electrolytic Capacitor

10uF/16V

01

D01

Diode (chip)

RLS-73

01

IC1

IC

NJM062M

  OP AMP

02

IC1

IC

TL062CPS

03

R01

Carbon Resistor (chip)

1M J

01

R02

Carbon Resistor (chip)

220K J

01

R03

Carbon Resistor (chip)

270K J

01

R04

Carbon Resistor (chip)

470K J

01

R05

Carbon Resistor (chip)

6.8K J

01

R06

Carbon Resistor (chip)

43K J

01

R07

Carbon Resistor (chip)

12K J

01

R08

Carbon Resistor (chip)

27K J

01

R09

Carbon Resistor (chip)

6.8K J

01

R10

Carbon Resistor (chip)

8.2K J

01

R11

Carbon Resistor (chip)

8.2K J

01

R12

Carbon Resistor (chip)

27K J

01

R13

Carbon Resistor (chip)

1K J

01

R14

Carbon Resistor (chip)

47K J

01

R15

Carbon Resistor (chip)

47K J

01

VR1

Variable Resistor

16T1-A20K L-18KC

M.VOLUME

VR2

Variable Resistor

16T1-A20K L-18KC

M.TONE

QC687400

QC687400
UA154470
UB051470
UI166100
UA154680
UA154680
UA153560
UI166100
UA153220
UA155220
UI337100
UI337100
VB797600
XD901A00
XN309A00
RD259100
RD258220
RD258270
RD258470
RD256680
RD257430
RD257120
RD257270
RD256680
RD256820
RD256820
RD257270
RD256100
RD257470
RD257470
QC687600
QC687600

REF NO.

PART NO.

DESCRIPTION

REMARKS

QTY

RANK

ELECTRICAL 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.

Summary of Contents for RBX774

Page 1: ...ELECTRIC BASS HAMAMATSU JAPAN CONTENTS OVERALL ASSEMBLY 2 ELECTRICAL PARTS 6 CIRCUIT BOARD 7 CIRCUIT DIAGRAM 8 WIRING 9 SPECIFICATIONS 10 This document is printed on chlorine free ECF paper with soy ink RBX774 RBX775 SERVICE MANUAL RBX775 RBX774 ...

Page 2: ...E A 20KΩ E28a E28 F01a F08 F09 F10 M TONE A 20KΩ E28a A01 E26 E27 E25 D01 E11 E08 E09 E14 E11 E12 G01 G04 G03 G06 G09 G08 E18 E19 E08 E09 E26 E27 F11 F11a F11b F11c E25 F01c F01b F03 F01 F17 E31 E33 F06 F07 F04 F05 OVERALL ASSEMBLY Jack Installation F11 F11c F11 F11a F11b Bridge Assembly BPZ 8 Diecast QC674000 E18 B01 B02 RBX774 ...

Page 3: ...1c 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 Lo...

Page 4: ...Ω E28a E28 F01a F08 F09 F10 M TONE A 20KΩ E28a E21 A01 E26 E27 E25 D01 E11 E08 E09 E14 E11 E12 G01 G04 G03 G06 G09 G08 E18 E19 E08 E09 E26 E27 F11 F11a F11b F11c E25 F01c F01b F03 F01 F17 E31 E33 F06 F07 F04 F05 A01b Bridge Assembly BPZ 8 Diecast QC674000 E18 B01 B02 OVERALL ASSEMBLY RBX775 F11c F11 F11a F11b Jack Installation F11 ...

Page 5: ... 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...

Page 6: ...sistor chip 47K J 01 R15 Carbon Resistor chip 47K J 01 VR1 Variable Resistor 16T1 A20K L 18KC M VOLUME VR2 Variable Resistor 16T1 A20K L 18KC M TONE QC687400 QC687400 UA154470 UB051470 UI166100 UA154680 UA154680 UA153560 UI166100 UA153220 UA155220 UI337100 UI337100 VB797600 XD901A00 XN309A00 RD259100 RD258220 RD258270 RD258470 RD256680 RD257430 RD257120 RD257270 RD256680 RD256820 RD256820 RD257270...

Page 7: ...RBX775 7 CIRCUIT BOARD Component side Pattern side Note See parts list for details of circuit board component parts EPA QC68740 2 to BOOST SWITCH to BATTERY DC9V to OUTPUT JACK M VOLUME M TONE to PICKUP SWITCH ...

Page 8: ...CUIT DIAGRAM FRONT PICKUP PICKUP SWITCH 3P Toggle DM 20 BOOST SWITCH ON OFF M TONE M VOLUME BAHH 02 REAR PICKUP OP AMP OP AMP Electrolytic Capacitor Mylar Capacitor Ceramic Capacitor OUTPUT JACK BATTERY DC9V CIRCUIT BOARD ...

Page 9: ...kup Screw the lug terminal in cavity for the rear pickup Screw with the following earth lug CIRCUIT BOARD RBX774 RBX775 FRONT PICKUP Box for Dry Cell M VOLUME A 20KΩ PICKUP SWITCH 3P Toggle DM 20 OUTPUT JACK to bridge ground BOOST SWITCH ON OFF M TONE A 20KΩ CIRCUIT BOARD REAR PICKUP Screw the lug terminal in cavity for the front pickup Screw the lug terminal in cavity for the rear pickup Screw wi...

Page 10: ...Material Alder Body Depth 41mm FINGERBOARD Material Rose Fingerboard Width RBX774 0 F 40 0mm 12 F 56 4mm RBX775 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 PARTS Hardware Black Plated Nut Urea Bridge BPZ 8 Diecast Black Strings RBX774 H4030 4pcs RBX775 H4030 4pcs H4055 Low B CONTROLS Volume A 20KΩ x 1 Tone A 20KΩ x 1 Pickup Switch 3 position Togg...

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