Yamaha_RBX774,_RBX775_Bass_Service_Manual 电路图.pdf

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1、0.768K-072 Printed in Japan 02.03 EG 011634 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 RBX775RBX774 R

2、adioFans.CN 收音机爱 好者资料库 RBX774/RBX775 2 A01a A01b A seal is attached on the rear of the neck. RBX 774 E02 E10 E21 E01 E04E04 E28F01aF08 F09 F10 M.VOLUME: A 20K E28a E28F01aF08 F09 F10 M.TONE: A 20K E28a A01 E26 E27 E25 D01 E11 E08 E09 E14 E11 E12 G01 G04 G03 G06 G09 G08 E18 E19 E08 E09 E26 E27 F11F11

3、a F11b F11c E25 F01c F01bF03 F01 F17 E31 E33 F06 F07 F04 F05 OVERALL ASSEMBLY Jack InstallationF11 F11c F11 F11a F11b Bridge Assembly: BPZ-8 Diecast (QC674000)E18 B01 B02 RBX774 RadioFans.CN 收音机爱 好者资料库 RBX774/RBX775 3 : New PartsRANK: Japan only * * * * * * * * * * * * * * * OVERALL ASSEMBLYRBX774 A

4、01Neck AssemblyBLwith Head Panel A01Neck AssemblyFSLwith Head Panel A01Neck AssemblyFLBwith Head Panel A01aSeal(QC67460) A01bHead PanelNatural(QC67250) D01Body E01Tuning Machine AssemblyRM1243 (Black)Right209 E02Tuning Machine AssemblyRM1243L (Black)Left209 E04Round Head Wood Screw2.4X10 FCM3BLBlack

5、401 E08Rod CoverBlack E09Round Head Wood Screw2.7X13 FCM3BLBlack201 E10NutUrea 40mm (Black) E11Neck Joint BushingBlack404 E12Oval Head Tapping Screw4.5X35 FCM3BLBlack2 E14Oval Head Tapping Screw4.5X40 FCM3BLBlack2 E18Bridge AssemblyBPZ-8 (Black) Diecast4 E19Flat Head Tapping Screw3.0X25 FCM3BLBlack8

6、 E21StringsH40301set(4pcs)(AA80931) E25Strap ButtonSG-type (Black)2 E26Oval Head Tapping Screw3.5X25 FCM3BLBlack201 E27SpacerFelt (Black)201 E28Knob AssemblyBlackM.VOLUME,M.TONE207 E28aScrewM3.0X6 ZMC-BLBlack221 E31Back CoverElectrical (Black) E33Oval Head Wood Screw2.7X13 FCM3BLBlack403 F01Electric

7、al Unit(QC67440) F01aCircuit Boardwith VOL,TONE VR F01bToggle Switch3P DM-20PICKUP F01cToggle Switch (Mini)ON-ON (Black)BOOST (ON-OFF)06 F03Knob, Pickup SwitchSGV-type FCM3BLBlack F04NutBlackwith Pickup Switch F05NutBlackwith Boost Switch F06Box for Dry Cell04 F07Pan Head Tapping Screw3.0X8 FCM3BLBl

8、ack2 F08Hexagonal Nutwith Volume2 F09Flat Washerwith Volume2 F10Toothed Lock Washerwith Volume2 F11JackGold07 F11aHexagonal Nut F11bRubber Ring F11cToothed Lock Washer F17Round Head Wood Screw2.7X13 FCM33Gfor Earth Lug (Chrome)203 G01Pickup AssemblyH/B (Black)FRONT13 G03Pan Head Tapping Screw2.6X35

9、FCM3BLBlack302 G04Pickup Cushion55X25X1802 G06Pickup AssemblyH/B (Black)REAR13 G08Pan Head Tapping Screw2.6X35 FCM3BLBlack302 G09Pickup Cushion55X25X1802 H01Accessory UnitG-11set07 CordD05 Wrench#1.5 Wrench#5 H02Battery9V Dry Cell(PC10008) Bridge AssemblyBPZ-8 (Black) Diecast4 B01Pan Head Screw3.0X4

10、0 FCM3BLBlack401 B02SpringBlack401 AAX34350 AAX34360 AAX34370 - - - QC279100 QC279800 VD763600 QC672700 03704270 QC672600 QC205200 QC685100 QC685200 QC674000 QC685300 - QC656200 QC613000 VB793700 QC573500 AAX16560 QC674300 EB620020 - QC687400 QC687500 QC677900 QC685400 - - QA223300 QC025000 - - - QA

11、209900 - - - EA620060 QC460500 VJ388800 QC556400 QC460600 VJ388800 QC556400 QC354000 QA262600 - - - QC674000 EA330400 VJ402400 REF NO.PART NO. DESCRIPTIONREMARKS QTYRANK RBX774 RadioFans.CN 收音机爱 好者资料库 RBX774/RBX775 4 A01a A seal is attached on the rear of the neck. RBX 775 E02 E10 E22 E01 E04 E04 E2

12、8F01aF08 F09 F10 M.VOLUME: A 20K E28a E28F01aF08 F09 F10 M.TONE: A 20K 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 F11F11a F11b F11c E25 F01c F01bF03 F01 F17 E31 E33 F06 F07 F04 F05 A01b Bridge Assembly: BPZ-8 Diecast (QC674000)E18 B01 B02 OVE

13、RALL ASSEMBLY RBX775 F11c F11 F11a F11b Jack InstallationF11 RBX774/RBX775 5 : New PartsRANK: Japan only * * * * * * * * * * * * * * * OVERALL ASSEMBLYRBX775 A01Neck AssemblyBLwith Head Panel A01Neck AssemblyFSLwith Head Panel A01Neck AssemblyFLBwith Head Panel A01aSeal(QC67290) A01bHead PanelNatura

14、l(QC67220) D01Body E01Tuning Machine AssemblyRM1243 (Black)Right309 E02Tuning Machine AssemblyRM1243L (Black)Left209 E04Round Head Wood Screw2.4X10 FCM3BLBlack501 E08Rod CoverBlack E09Round Head Wood Screw2.7X13 FCM3BLBlack201 E10NutUrea 43mm (Black) E11Neck Joint BushingBlack404 E12Oval Head Tappin

15、g Screw4.5X35 FCM3BLBlack2 E14Oval Head Tapping Screw4.5X40 FCM3BLBlack2 E18Bridge AssemblyBPZ-8 (Black) Diecast5 E19Flat Head Tapping Screw3.0X25 FCM3BLBlack10 E21StringsH40301set(4pcs)(AA80931) E22StringsH4055 Low-B(QB00400) E25Strap ButtonSG-type (Black)2 E26Oval Head Tapping Screw3.5X25 FCM3BLBl

16、ack201 E27SpacerFelt (Black)201 E28Knob AssemblyBlackM.VOLUME,M.TONE207 E28aScrewM3.0X6 ZMC-BLBlack221 E31Back CoverElectrical (Black) E33Oval Head Wood Screw2.7X13 FCM3BLBlack403 F01Electrical Unit(QC67440) F01aCircuit Boardwith VOL,TONE VR F01bToggle Switch3P DM-20PICKUP F01cToggle Switch (Mini)ON

17、-ON (Black)BOOST (ON-OFF)06 F03Knob, Pickup SwitchSGV-type FCM3BLBlack F04NutBlackwith Pickup Switch F05NutBlackwith Boost Switch F06Box for Dry Cell04 F07Pan Head Tapping Screw3.0X8 FCM3BLBlack2 F08Hexagonal Nutwith Volume2 F09Flat Washerwith Volume2 F10Toothed Lock Washerwith Volume2 F11JackGold07

18、 F11aHexagonal Nut F11bRubber Ring F11cToothed Lock Washer F17Round Head Wood Screw2.7X13 FCM33Gfor Earth Lug (Chrome)203 G01Pickup AssemblyH/B (Black)FRONT13 G03Pan Head Tapping Screw2.6X35 FCM3BLBlack302 G04Pickup Cushion55X25X1802 G06Pickup AssemblyH/B (Black)REAR13 G08Pan Head Tapping Screw2.6X3

19、5 FCM3BLBlack302 G09Pickup Cushion55X25X1802 H01Accessory UnitG-11set07 CordD05 Wrench#1.5 Wrench#5 H02Battery9V Dry Cell(PC10008) Bridge AssemblyBPZ-8 (Black) Diecast5 B01Pan Head Screw3.0X40 FCM3BLBlack501 B02SpringBlack501 AAX34380 AAX34390 AAX34400 - - - QC279100 QC279800 VD763600 QC672400 03704

20、270 QC672300 QC205200 QC685100 QC685200 QC674000 QC685300 - - QC656200 QC613000 VB793700 QC573500 AAX16560 QC674300 EB620020 - QC687400 QC687500 QC677900 QC685400 - - QA223300 QC025000 - - - QA209900 - - - EA620060 QC472800 VJ388800 QC556400 QC472900 VJ388800 QC556400 QC354000 QA262600 - - - QC67400

21、0 EA330400 VJ402400 REF NO.PART NO. DESCRIPTIONREMARKS QTYRANK RBX775 RBX774/RBX775 6 : New PartsRANK: Japan only * * * * * ELECTRICAL PARTSRBX774/RBX775 Circuit Board(QC68780) Circuit Board(QC68780) C01Mylar Capacitor0.047uF/50V01 C02Ceramic Capacitor (chip)47pF/50V J01 C03Electrolytic Capacitor1uF

22、/50V01 C04Mylar Capacitor0.068uF/50V02 C05Mylar Capacitor0.068uF/50V02 C06Mylar Capacitor5600pF/50V C07Electrolytic Capacitor1uF/50V01 C08Mylar Capacitor2200pF/50V01 C09Mylar Capacitor0.22uF/50V C10Electrolytic Capacitor10uF/16V01 C11Electrolytic Capacitor10uF/16V01 D01Diode (chip)RLS-7301 IC1ICNJM0

23、62M OP AMP02 IC1ICTL062CPS03 R01Carbon Resistor (chip)1M J01 R02Carbon Resistor (chip)220K J01 R03Carbon Resistor (chip)270K J01 R04Carbon Resistor (chip)470K J01 R05Carbon Resistor (chip)6.8K J01 R06Carbon Resistor (chip)43K J01 R07Carbon Resistor (chip)12K J01 R08Carbon Resistor (chip)27K J01 R09C

24、arbon Resistor (chip)6.8K J01 R10Carbon Resistor (chip)8.2K J01 R11Carbon Resistor (chip)8.2K J01 R12Carbon Resistor (chip)27K J01 R13Carbon Resistor (chip)1K J01 R14Carbon Resistor (chip)47K J01 R15Carbon Resistor (chip)47K J01 VR1Variable Resistor16T1-A20K L-18KCM.VOLUME VR2Variable Resistor16T1-A

25、20K L-18KCM.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 QC68

26、7600 QC687600 REF NO.PART NO. DESCRIPTIONREMARKS QTYRANK 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 fou

27、nd 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 solde

28、r 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. RBX774/RBX775 7 CIRCUIT BOARD Component side Pattern side Note: See pa

29、rts list for details of circuit board component parts. EPA-QC68740-2 to BOOST SWITCHto BATTERY DC9V to OUTPUT JACK M.VOLUMEM.TONE to PICKUP SWITCH RBX774/RBX775 8 CIRCUIT DIAGRAM FRONT PICKUP PICKUP SWITCH (3P Toggle: DM-20) BOOST SWITCH (ON-OFF) M.TONEM.VOLUME BAHH-02 REAR PICKUP OP AMP OP AMP Elec

30、trolytic Capacitor Mylar Capacitor Ceramic Capacitor OUTPUT JACK BATTERY DC9V CIRCUIT BOARD RBX774/RBX775 9 WIRING GR OR BL BL BL BL RE RE WH WH FRONT PICKUP Box for Dry Cell M.VOLUME A 20K PICKUP SWITCH (3P Toggle: DM-20) OUTPUT JACK to bridge ground BOOST SWITCH (ON-OFF) M.TONE A 20K REAR PICKUP S

31、crew the lug terminal in cavity for the front pickup. 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 20K PICKUP SWITCH (3P Toggle: DM-20) OUTPUT JACK to bridge ground BOOST SWITCH (ON-OFF)

32、 M.TONE A 20K 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 with the following earth lug. GR OR BL BL BL BL RE RE WH WH RBX774/RBX775 10 SPECIFICATIONS STANDARD SPECIFICA TIONS Scale Length. 889.0mm Body-N

33、eck Construction . Bolt On Length RBX774 . 1134.0mm RBX775 . 1158.7mm Width RBX774 . 324.4mm RBX775 . 331.0mm Net Weight RBX774 . 3.9kg RBX775 . 4.0kg COLOR Body BL . Black FSL . Flat Silver FLB. Flat Blue Neck BL . Black FSL . Flat Silver FLB. Flat Blue BODY Material. Alder Body Depth . 41mm FINGER

34、BOARD 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 20K x 1 Tone . A 20K x 1 Pickup Switch. 3 position Toggle Switch (DM-20) Boost Switch . Mini Toggle Switch (2 pole 2 position) PICKUPS Front/Rear . Humbucking Magnet Front/Rear . Ferrite