Manual de instrucciones de Yamaha Electric Bass RBX 6JM

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ELECTRIC BASS
RBX 6JM
SERVICE MANUAL
CONTENTS
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OVERALL ASSEMBLY 2
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ELECTRICAL PARTS 4
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CIRCUIT BOARDS 6
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CIRCUIT DIAGRAM 7
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WIRING 8
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RBX 6JM OVERALL ASSEMBLY A01a E18 Bridge Assembly : BPX-6C Solid Brass GOLD (QC471100) A seal is attached on the rear of the neck. RBX 6JM B03 B02b E01 E04 B05 B03 E02 E04 E10 B02a B06 E21 B01 A01 E25 E26 E27 D01 E11 E12 F02 F07 E31 E33 G01 G03 G04 E28 BALANCER : 20k ohm F01 G06 G08 G09 E28 BASS EQ.: 50k ohm E28 MID EQ.: 50k ohm E30 E18 E19 E28 HIGH EQ.: 50k ohm F11 E25 E26 E27 E28 VOLUME : 5k ohm 2

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RBX 6JM REF NO. PART NO. DESCRIPTION REMARKS QTY RANK OVERALL ASSEMBLY RBX 6JM A01 DX809790 Neck Assembly TB * A01 DX809780 Neck Assembly RR * A01a - - Seal (QC47030) D01 - - Body E01 QC336300 Tuning Machine Assembly RM1243 (GOLD) 3 09 E02 QC336400 Tuning Machine Assembly RM1243L (GOLD) 3 09 E04 03704070 Round Head Wood Screw 2.4X10 GOLD 6 02 E10 QC471400 Nut 51mm 09 * E11 QC205200 Neck Joint Bushing BL 6 04 E12 VI825000 Oval Head Tapping Screw 5.0X40 MFZN2BL (BL) 6 01 E18 QC471100 Bridge Assemb

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RBX 6JM ELECTRICAL PARTS REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ELECTRICAL PARTS RBX 6JM QC432100 Electrical Unit 3-BAND EQ. 29 QC434900 Hexagonal Nut 06 C1-4 FP355100 Tuntalum Capacitor 0.1uF/35V 02 C05 FX804200 Electlytic Cap. 22u/16V R3A-16V220 05 C06 FX804200 Electlytic Cap. 22u/16V R3A-16V220 05 C31 UI137100 Electlytic Cap. 10u/16V RC3-16V100 01 C32 FG444100 Ceramic Capacitor 0.01uF/50V 01 C33 FX804200 Electlytic Cap. 22u/16V R3A-16V220 05 C34 UI137100 Electlytic Cap. 10u/16V RC3-16V

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RBX 6JM REF NO. PART NO. DESCRIPTION REMARKS QTY RANK R65 HF557470 Carbon Resistor 47K 1/6W J 01 R71 HF558100 Carbon Resistor 100K 1/6W J 01 R72 HF557510 Carbon Resistor 51K 1/6W J 03 R73 HF557270 Carbon Resistor 27K 1/6W J 01 R74 HF557100 Carbon Resistor 10K 1/6W J 01 R75 HF557100 Carbon Resistor 10K 1/6W J 01 R76 HF557180 Carbon Resistor 18K 1/6W J 01 R77 HF557100 Carbon Resistor 10K 1/6W J 01 R78 HF556220 Carbon Resistor 2.2K 1/6W J 01 R79 HF557470 Carbon Resistor 47K 1/6W J 01 R80 HF557470 C

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RBX 6JM CIRCUIT BOARD BASS MID TREB BALANCER Battery 9V OUTPUT jack VOLUME REAR PICKUP FRONT PICKUP Component side Pattern side EPA-QC43210-2 6

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RBX 6JM CIRCUIT DIAGRAM IC4 TC7662 7 2SK30 Q1 CN1 0.1µ/16V 1 + 6.8K C1 2 R9 C51 22µ/16V 100p + C52 100p (M.VOL) 47K A 3 22K 5KA C5 R51 FRONT 4.7K 2 R53 VR2 R52 P.U. 8 2SK30 - 6 Q2 1 22µ/16V 2 0.1µ/16V R54 (OUTPUT IC1-1 - R15 R55 7 + JACK) + + 47K IC1-2 4 1 3 CN3 VR7 A 3 + 33 18K 4.7K 1 5 C53 2 C2 B4.7K 2 OP200GP OP200GP R10 1 3 20KB*2 (BAL) 4 BALANCER 2SK30 L2 100µH Q3 CN2 0.1µ/16V 3 1µ/50V 50KB 2 1 8 R63 + - + 2 1 VR3 R61 IC2-1 33K 6.8K 3 1 8 + C3 12K 4 C63 (BASS) 1 33K R62 2 7 2 R11 (BATTERY)

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RBX 6JM WIRING FRONT PICKUP REAR PICKUP to bridge GND VOLUME 5k ohm BALANCER 20k ohm Box for dry cell TREB OUTPUT MID BASS Equalizer 50k ohm SPECIFICATIONS STANDARD SPECIFICATIONS Scale Length ··········································889.0mm Body-Neck Construction ·······················Bolt On Length····················································1157.3mm Width ·····················································351.0mm Net Weight·············································5.0kg COLOR Bo