Yamaha DS60-112 User Manual

DS60-112

POWERED SPEAKER

SERVICE MANUAL

This document is printed on chlorine free (ECF) paper with soy ink.

011598

GA

20011001-39800

CONTENTS

SPECIFICATIONS ................................................... 3

PANEL LAYOUT .................................... 4

BLOCK DIAGRAM

CIRCUIT BOARD LAYOUT ................. 5

WIRING ..................................................................... 5

DISASSEMBLY PROCEDURE .............................. 6

IC BLOCK DIAGRAM ..................................... 7

CIRCUIT BOARDS .......................................... 8

IDLING ADJUSTMENT ........................ 10

OVERALL CIRCUIT DIAGRAM
PARTS LIST

1.507K-844 Printed in Japan 2001.9

............................ 4

HAMAMATSU, JAPAN

1

IMPORTANT NOTICE

This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed
that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under­stood by the users, and have therefore not been restated.

WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per-

IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-

The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and
service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable
and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
exist, please contact the distributor’s Service Division.

WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have

IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power

sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.

cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.

accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)

to the unit.

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.

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

WARNING: THIS APPARA TUS MUST BE EARTHED
IMPORTANT. The wires in this mains lead are coloured in
accordance with the following code:

GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL

BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not
correspond with the coloured markings identifying the terminals in your
plug proceed as follows:

The wire which is coloured GREEN-and-YELLOW must be connected
to the terminal in the plug which is marked by the letter E or by the
safety earth symbol or colored GREEN or GREEN-and-YELLOW.

The wire which is coloured BLUE must be connected to the terminal
which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal
which is marked with the letter L or coloured RED.

WARNING

Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.

2

SPECIFICATIONS

Output Power 60 Wrms
Speaker 30 cm x 1 (Celestion SEVENTY 80)
Controller/Switch VOLUME, TREBLE, MIDDLE, BASS, EQ ON/OFF, POWER
Connection Jacks INPUT : Standard Phone Mono Jack

SLAVE OUT : Standard Phone Mono Jack

Input Level/Impedance INPUT : 0 dBm / 100 kΩ
Output Level/Impedance SLAVE OUT : 0 dBm / 1 kΩ
Power Requirements U.S. and Canadian models : 120 V, 60 Hz

General model : 230 V, 50 Hz

Power Consumption 70 W
Dimensions (W x H x D) 513 x 491 x 291 mm (20.2” x 19.3” x 101.5”)
Weight 16.0 kg (35 lbs 4 oz)

DS60-112

3

PANEL LAYOUT

Control Panel

q w e r t y

q INPUT Jack (INPUT)
w Volume Control (VOLUME)
e Equalizer Switch (EQ ON/OFF)
r Equalizer Controls (TREBLE, MIDDLE, BASS)
t Expansion Output Jack (SLAVE OUT)
y Power Switch & Lamp (POWER)

BLOCK DIAGRAM

INPUT

IC1 1/2

31

MAIN

IC1 1/2, IC2

ACTIVE TYPE

TONE CONTROL

BASS MID TREBLE

EQ OFF-ON

VOLUME

SLAVE

OUT

POWER AMP

MUTE

TR1, 2, 3

POWER SUPPLY CIRCUIT

POWER
SWITCH

SPEAKER

AC INPUT

4

CIRCUIT BOARD LAYOUT

DS60-112

2/4MAIN

2/4MAIN

3/4MAIN

1/4MAIN

3/4MAIN

4/4MAIN

4/4MAIN

1/4MAIN

WIRING

W2

W4

W6

W1 W3

W5 BT1

BT2

CN3 CN2

CN1

5

DISASSEMBLY PROCEDURE

A. External fittings

1. Handle assembly

1-1. Remove the two (2) screws marked [G60d] and

remove the handle.

2. Corner metal fixture

2-1. Remove the two (2) screws marked [G50] and

remove the corner metal fixture. (Fig. 1)

3. Leg

3-1. Remove the one (1) screw marked [G110] and

remove the leg. (Fig. 1)

[G50]

[G60d]

[G50]: Oval Head Tapping Screw-1 3.5X16 MFN133 (V3833600)
[G60d]: Oval Flat Head Screw 5.0X25 FNM3-2B (V3743700)
[G110]: Truss Head Tapping Screw-1 4.0X20 MFZN2BL (O3747290)

Fig.1

[G110]

4. Amplifier Unit

4-1. Remove the four (4) screws marked [80] and four

(4) angle washers marked [90] from the rear panel.
(Fig. 2)

4-2. Remove the four (4) screws marked [30] and four

(4) angle washers marked [40] from the top panel.
(fig. 2)

5. Speaker

5-1. Remove the four (4) screws marked [80] and four

(4) angle washers marked [90] from the rear panel.
(Fig. 2)

5-2. Remove the four (4) screws marked [70]. The

speaker can then be removed. (Fig. 2)

[30][40]

[70]

[80]
[90]

[30]: Oval Head Screw 5.0X35 MFV2BL (V3749300)
[40]: Washer 5S MFC2BL (EW300020)
[70]: Hexagonal Nut 4.0 MFZN2Y (O3760900)
[80]: Oval Head Tapping Screw-1 4.0X30 MFC2BL (V3749400)
[90]: Washer 4S MFC2BL (VB890200)

Fig.2

6

B. Amplifier Unit

6. MAIN circuit board 1/4

6-1. Remove the amplifier unit (See Item 4 above.)
6-2. Remove the four (4) scre ws marked [30], four (4) knobs

of Ro tary variable resisters, four (4) hexagonal nuts
and one (1) each of INPUT and SLAVE OUT he xagonal
nuts. The MAIN circuit board 1/4 can then be removed.
(Fig. 3)

7. MAIN Circuit Boards 2/4, 3/4, 4/4

7-1. Remove the amplifier unit. (See Item 4 above.)
7-2. Remove the one (1) screw marked [210] from each

circuit board, which can then be removed. (Fig. 3)

8. Power T ransformer

8-1. Remove the amplifier unit. (See Item 4 above.)
8-2. Remove the four (4) screws marked [190A]. The

power transformer can then be removed. (Fig. 3)

DS60-112

9. Heat Sink

9-1. Remove the amplifier unit. (See Item 4 above.)
9-2. Remove MAIN circuit boards 2/4, 3/4 and 4/4.

(See Item 7 above)

9-3. Remove the three (3) screws marked [190B]. The

heat sink can then be removed. (Fig. 3)

[190B]

Hexagonal nut

2/4MAIN

INPUT

[190B] [190B] [190A][210] [210][210]

[30] [30]

Fig.3

3/4MAIN

4/4MAIN

[30]

1/4MAIN

Knob

[30]: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190)
[190]: Bind Head Tapping Screw-C 4.0X8 MFZN2BL (VC688900)
[210]: Bind Head Screw SP3.0X12 MFZN2Y (VB763800)

[190A] [190A]

SLAVE OUT

[30]

Hexagonal nut

IC BLOCK DIAGRAM

RC4558D-V (IG001390)

IC1, IC2

OP AMP

1

Output A
Inverting

Input A

Non-Inverting

Input A

-DC Voltage Supply

2

3

4-V

+V

+-

+-

8

7

6

5

+DC Voltage
Supply

Output B

Inverting
Input B

Non-Inverting
Input B

7

CIRCUIT BOARDS

MAIN Circuit Board

MAIN 1/4

MAIN 2/4

Component side

A

EQ

INPUT

VOLUME TREBLE MIDDLE

8

ON/OFF

A'

DS60-112

MAIN 3/4

Component side

A

MAIN 4/4

Component side

BASS

A'

MAIN: CNA-V755090

POWER
ON/OFF

SLAVE OUT

Component side

9

IDLING ADJUSTMENT

1. T urn the idling adjustment volume (VR5) counterclockwise
fully .

2. Adjust the VR5 so that the DC voltage between the
terminals of the CN4 is 3mV.

10

A HGFEDCB

DS60-112

DS60-112 OVERALL CIRCUIT DIAGRAM

1

1/4MAIN

OP AMP

OP AMP

SPEAKER

2/4MAIN

2

OP AMP

OP AMP

3/4MAIN

3

Destination Power Transformer

Black

White

Black

WhiteGreen

Power Cord Cord Bush

Brown

Blue

Green/Yellow

Brown

Blue

Green/Yellow

Power

Transformer

Destination

Mylar Capacitor
Wire Wound Resistor
Flame Proof Carbon Resistor
Metal Oxide Film Resistor

KEC-54236

4/4MAIN

4

5

DS60-112DS60-112

6

HFGEDCBA

POWERED SPEAKER

PARTS LIST

CONTENTS

OVERALL ASSEMBLY .............................................. 2

AMPLIFIER UNIT ........................................ 4

ELECTRICAL PARTS ............................................. 6

Notes : DESTINATION ABBREVIATIONS

A : Australian model
B : British model
C : Canadian model
D : German model
E : European model
F : French model
H : North European model
I : Indonesian model
J : Japanese model

M: South African model
O: Chinese model
Q: South-east Asia model
T : Taiwan model
U : U.S.A. model
V : General export model (110V)
W: General export model (220)
N,X : General export model
Y : Export model

WARNING

Components having special characteristics are marked and must be replaced with parts having
specification equal to those originally installed.

The numbers “QTY” show quantities for each unit.
The parts with “--” in “PART NO.” are not available as spare parts.
This mark “ } ” in the REMARKS column means these parts are interchangeable.
The second letter of the shaded (
The second letter of the shaded (

) part number is O, not zero.
) part number is I, not one.

DS60-112

OVERALL ASSEMBLY

20

G60b

G70

70

50

10

120

30

40

110

100

G30

G100

G10

G20

G110

G80

G60a

G60

G60b

G60c

G50

G40

G50

G90

80

90

2

DS60-112

REF NO. PART NO. DESCRIPTION REMARKS QTY

*

10 Amplifier Unit J (V750430)

*

10 Amplifier Unit H (V750450)

*

10 Amplifier Unit U,C (V750440)

*

10 Amplifier Unit B (V750460)

*

20 Overall Assembly (V750470)

*

G10 Cabinet Assembly (V750480)

*

G20 Vinyl Leather PVC#507 (V369430)
G30 Saran Net #1059 (V369860)
G40 Conner Protector 803

V3694400

G50 Oval Head Tapping Screw-1 3.5X16 MFNI33 16 01

V3833600

G60 Handle Assembly 06

*
*
*

*

V3630300

G60a Handle GA/BA (V362340)
G60b Handle Plate GA/BA (V362350) 2
G60c Handle Angle GA/BA (V363020)

G70 Oval Head Screw 5.0X25 FNM3-2B 201

V3743700

G80 Screw 4.0X40 MFC2BL 4

V3749500

G90 Truss Head Tapping Screw-1 4.0X30 MFZN2Y 601

03747400

G100 Leg 401

VV085600

G110 Truss Head Tapping Screw-1 4.0X20 MFZN2BL 401

03747290

30 Oval Head Screw 5.0X35 MFC2BL 4

V3749300

40 Washer 5S MFC2BL 401

EW300020

50 Speaker SEVENTY 80

X0338A00

70 Hexagonal Nut 4.0 MFZN2Y 401

03760900

80 Oval Head Tapping Screw-1 4.0X30 MFC2BL 8

V3749400

90 Washer 4S MFC2BL 801

VB890200

100 Name Plate GA/BA

V3624100

110 Truss Head Tapping Screw-1 3.0X10 FCM3-BL 2

V3623800

120 Label U,C (VA03930) 03

OVERALL ASSEMBLY DS60-112
Overall Assembly J (V750350)

--

Overall Assembly U,C (V750360)

--

Overall Assembly H (V750370)

--

Overall Assembly B (V750380)

--

--

--

--

--

--

--

--

--

--

--

--

--

RANK

: New Parts

RANK: Japan only

3

DS60-112

AMPLIFIER UNIT

190

30

155

140

20

60

80

70

200

190

210

210

200

180

150

160

170

80

130

120

40

50

90

100

110

220

10

30

4

DS60-112

REF NO. PART NO. DESCRIPTION REMARKS QTY

*

10 Chassis J

*
*
*
*

*
*
*

V7504900

10 Chassis U,C

V7505000

10 Chassis H

V7505100

20 Circuit Board J,U

V7550900

20 Circuit Board H

V7551000

30 Bind Head Tapping Screw-B 3.0X8 MFZN2BL 501

EP600190

40 Knob (CH)

V3694100

50 Button (S) GRAY EQ ON/OFF 01

VZ429100

60 Power Switch Knob POWER ON/OFF 01

VU859000

70 Escutcheon, Power Switch 02

VU859100

80 Film, Power Switch 13X8X0.15 2

V4126900

90 Hexagonal Nut 9.0 12X2 MFNI33 01

LX200060

100 Flat Washer 9X14 0.5 FNM3 01

VL802300

110 Toothed Lock Washer-A 9.0 MFZN2Y 01

ET800150

120 Hexagonal Nut 12.0 14X2 MFC2BL 01

VD794100

130 Insulation Sheet

V3755700

140 Power Transformer J J

X0239B00

140 Power Transformer UC U,C

X0240B00

140 Power Transformer E E,B

X0241B00

150 Power Cord E H05VV-F3X0.75 6A H 06

VV058200

150 Power Cord BS H05VV-F3X0.75 B 08

VV058300

150 Power Cord UC SJT 3X#18 10A U,C 06

VV205600

150 Power Cord J VCTF 2X0.75 7A J 05

VZ461100

155 Bind Head Screw 4.0X8 MFZN2BL U,C,H,B 01

VP156800

160 Cord Stopper SR-5R1 J,H,B 01

VV103000

160 Cord Stopper SR-6P1 U,C 01

VV103100

170 Cord Stopper SR-4N-4 01

CB072750

180 Heat Sink (V612570)
190 Bind Head Tapping Screw-C 4.0X8 MFZN2BL 701

VC688900

200 Insulation Sheet UNISHEET T=0.15 2

V3637600

210 Bind Head Screw SP 3.0X12 MFZN2Y 3 01

VB763800

220 Cord Holder 301

VV104600

Amplifier Unit J (V750430)

--

Amplifier Unit U,C (V750440)

--

Amplifier Unit H (V750450)

--

Amplifier Unit B (V750460)

--

VOLUME,TREBLE,MIDDLE,BASS

--

402

RANK

: New Parts

RANK: Japan only

5

DS60-112

ELECTRICAL PARTS

REF NO. PART NO. DESCRIPTION REMARKS QTY

*
*

*

V7550900
V7551000

VV319600

BT1 Wire Assembly #18 2P L 300

V3632400

C01 Electrolytic Cap. 1.00 50.0V 01

UR866100

C02 Ceramic Capacitor-SL 100P 50V J 01

VZ353500

C03 Ceramic Capacitor-SL 100P 50V J 01

VZ353500

C04 Electrolytic Cap. 1.00 50.0V 01

UR866100

C05 Ceramic Capacitor-B 1000P 50V K 01

VZ353900

C06 Electrolytic Cap. 10.00 25.0V 01

UR847100

C07 Electrolytic Cap. 3.30 50.0V 01

UR866330

C08 Mylar Capacitor 6800P 50V J 01

VV061200

C09 Electrolytic Cap. 0.33 50.0V

UR865330

C10 Mylar Capacitor 2200P 50V J 01

VV060300

C11 Mylar Capacitor 0.068 50V J 01

VV062600

C12 Ceramic Capacitor-SL 100P 50V J 01

VZ353500

C13 Electrolytic Cap. 10.00 25.0V 01

UR847100

C14 Electrolytic Cap. 1.00 50.0V 01

UR866100

C15 Electrolytic Cap. 4.70 50.0V 01

UR866470

C16 Electrolytic Cap. 1.00 50.0V 01

UR866100

C17 Ceramic Capacitor-B 1000P 50V K 01

VZ353900

C18 Electrolytic Cap. 47.00 50.0V 01

UR867470

-20 Electrolytic Cap. 47.00 50.0V 01

UR867470

C21 Ceramic Capacitor-SL 100P 50V J 01

VZ353500

C22 Electrolytic Cap. 100.00 35.0V 01

UR858100

C23 Ceramic Capacitor-B 220P 50V K 01

VZ353600

C24 Ceramic Capacitor-B 220P 50V K 01

VZ353600

C25 Mylar Capacitor 0.1 50V J 01

VV062800

C26 Mylar Capacitor 0.1 50V J 01

VV062800

C27 Electrolytic Cap. 10.00 25.0V 01

UR847100

C28 Electrolytic Cap. 10.00 25.0V 01

UR847100

C29 Capacitor 0.01 400V J.U.C.S 02

VV520600

C30 Polypropylene Capacitor 0.022U/250V

V3632700

C31 Polypropylene Capacitor 0.022U/250V

V3632700

C32 Electrolytic Cap.-LP 3300U 50V SNAP IN

V3632800

C33 Electrolytic Cap.-LP 3300U 50V SNAP IN

V3632800

C34 Electrolytic Cap. 10.00 25.0V 01

UR847100

C35 Electrolytic Cap. 10.00 25.0V 01

UR847100

CN1 Base Post 2P TE 01

VG879900

CN2 Base Post 4P TE 01

LB932040

CN3 Base Post 5P TE 01

LB932050

CN4 Base Post 2P TE 01

VV066200

D01 Diode 1SS82TD 01

IF005560

D02 Diode 1SS133,176,HSS104 01

VD631600

DB1 Diode Stack PBU403 4.0A 200V 03

VV518200

FT1 Fuse 2SK30ATM-Y Y 03

IE000010

FZ1 Fuse TDS 2A 250V J/U/C J,U,C 01

VV070600

FZ1 Fuse TSD 1A 250V SEMKO H,B 01

VV071200

FZ2 Fuse TDS 2A 250V J/U/C J,U,C 01

VV070600

FZ2 Fuse TDS 2A 250V SEMKO H,B 01

VV071500

FZ3 Fuse TDS 2A 250V J/U/C J,U,C 01

VV070600

FZ3 Fuse TDS 2A 250V SEMKO H,B 01

VV071500

IC1 IC RC4558D-V OP AMP 03

IG001390

IC2 IC RC4558D-V OP AMP 03

IG001390

JK1 Phone Jack HTJ-064-12I INPUT 01

V3633400

JK2 Phone Jack HTJ-064-11I SLAVE OUT

V6176400

LD1 LED Red LT311G41BAC 01

V3091800

R01 Carbon Resistor 2.2K 1/4 J 01

HF456220

R02 Carbon Resistor 100.0K 1/4 J 01

HF458100

R03 Carbon Resistor 100.0K 1/4 J 01

HF458100

R04 Carbon Resistor 220.0 1/4 J 01

HF455220

R05 Carbon Resistor 680.0 1/4 J 01

HF455680

R06 Carbon Resistor 3.3K 1/4 J 01

HF456330

R07 Carbon Resistor 100.0K 1/4 J 01

HF458100

R08 Carbon Resistor 680.0 1/4 J 01

HF455680

R09 Carbon Resistor 100.0K 1/4 J 01

HF458100

R10 Carbon Resistor 1.0K 1/4 J 01

HF456100

R11 Carbon Resistor 10.0K 1/4 J 01

HF457100

: New Parts

ELECTRICAL PARTS
Circuit Board MAIN J,U MAIN1/4-4/4(X0097A0)
Circuit Board MAIN H MAIN1/4-4/4(X0097A0)
Jumper Wire 0.60 (VV29140) 17 01

--

Fuse Holder CQ-05CT 601

RANK: Japan only

RANK

6

DS60-112

REF NO. PART NO. DESCRIPTION REMARKS QTY

R12 Carbon Resistor 1.0K 1/4 J 01

HF456100

R13 Carbon Resistor 100.0K 1/4 J 01

HF458100

R14 Carbon Resistor 680.0 1/4 J 01

HF455680

R15 Carbon Resistor 220.0 1/4 J 01

HF455220

R16 Carbon Resistor 3.3K 1/4 J 01

HF456330

R17 Carbon Resistor 1.0K 1/4 J 01

HF456100

R18 Carbon Resistor 10.0K 1/4 J 01

HF457100

R19 Carbon Resistor 10.0K 1/4 J 01

HF457100

R20 Carbon Resistor 100.0K 1/4 J 01

HF458100

R21 Carbon Resistor 22.0K 1/4 J 01

HF457220

R22 Carbon Resistor 100.0K 1/4 J 01

HF458100

R23 Carbon Resistor 2.2K 1/4 J 01

HF456220

R24 Carbon Resistor 100.0K 1/4 J 01

HF458100

R25 Carbon Resistor 100.0K 1/4 J 01

HF458100

R26 Carbon Resistor 4.7K 1/4 J 01

HF456470

R27 Carbon Resistor 4.7K 1/4 J 01

HF456470

R28 Carbon Resistor 10.0K 1/4 J 01

HF457100

R29 Carbon Resistor 2.2K 1/4 J 01

HF456220

R30 Carbon Resistor 56.0K 1/4 J 01

HF457560

R31 Carbon Resistor 1.5K 1/4 J 01

HF456150

R32 Carbon Resistor 470.0 1/4 J 01

HF455470

R33 Carbon Resistor 12.0K 1/4 J 01

HF457120

R34 Carbon Resistor 1.0K 1/4 J 01

HF456100

R35 Carbon Resistor 1.0K 1/4 J 01

HF456100

R36 Carbon Resistor 56.0K 1/4 J 01

HF457560

R37 Carbon Resistor 3.3K 1/4 J 01

HF456330

R38 Carbon Resistor 5.6K 1/4 J 01

HF456560

R39 Carbon Resistor 1.0K 1/4 J 01

HF456100

R40 Carbon Resistor 2.2K 1/4 J 01

HF456220

R41 Carbon Resistor 220.0 1/4 J 01

HF455220

R42 Carbon Resistor 3.3K 1/4 J 01

HF456330

R43 Carbon Resistor 220.0 1/4 J 01

HF455220

R44 Flame Proof C. Resistor 100 1/4 J 01

VV276800

R45 Carbon Resistor 330.0 1/4 J 01

HF455330

R46 Carbon Resistor 150.0 1/4 J 01

HF455150

R47 Carbon Resistor 180.0 1/4 J 01

HF455180

R48 Wire Wound Resistor 0.33 5W J

V4480100

R49 Wire Wound Resistor 0.33 5W J

V4480100

R50 Metal Oxide Film Resistor 4.7 1W J 01

V3632900

R51 Wire Wound Resistor 0.33 5W J

V4480100

R52 Metal Oxide Film Resistor 2.2K 3W J

V3633200

R53 Carbon Resistor 1.0K 1/4 J 01

HF456100

-56 Carbon Resistor 1.0K 1/4 J 01

HF456100

R57 Carbon Resistor 5.6K 1/4 J 01

HF456560

SW1 Push Switch SDDLB11874-YL 03

VV059400

SW2 Push Switch SPPJ22SE01 02

V3633600

TR01 T ransistor 2SC1815 Y ,GR 01

IC1815M0

TR02 Transistor 2SA1015 O,Y 01

IA101590

TR03 Transistor 2SC2878 A,B 01

IC287820

TR04 Transistor 2SA970 GR,BL 01

IA097030

TR05 Transistor 2SA970 GR,BL 01

IA097030

TR06 Transistor 2SC2705 O,Y 01

VE198800

TR07 Transistor 2SC3421 O,Y 02

IC342100

TR08 Transistor 2SA1358 O,Y 02

IA135800

TR09 Pair Transistor A1492(Z)/C3856(Z) 05

VV597200

TR10 Transistor 2SC3421 O,Y 02

IC342100

VR1 Rotary Variable Resistor RK09L1120 50KA

*
*
*

*
*
*

V7636900

VR2 Rotary Variable Resistor RK09L1120 10KB TREBLE,MID,BASS

V7636800

-4 Rotary V ariable Resistor RK09L1120 10KB

V7636800

VR5 Trimmer Potentiometer B 1K TB655MC

V3633500

W1W2 Connector Assembly B&B #24 3P L 200 (V363250)
W3W4 Connector Assembly B&B #26 3P L 150 (V620410)
W5W6 Connector Assembly B&B #24 3P L 200 (V363250)

ZD1 Zener Diode MTZ J 15.0B 15.0V 01

-4 Zener Diode MTZ J 15.0B 15.0V 01

--

--

-­VG440800
VG440800

VOLUME

RANK

*

*
*

: New Parts

X0338A00

X0239B00
X0240B00

Speaker SEVENTY 80

Power Transformer J J
Power Transformer UC U,C

RANK: Japan only

7

DS60-112

REF NO. PART NO. DESCRIPTION REMARKS QTY

*

X0241B00

VZ461100
VV205600
VV058300
VV058200

Power Transformer E E,B

Power Cord J VCTF 2X0.75 7A J 05
Power Cord UC SJT 3X#18 10A U,C 06
Power Cord BS H05VV-F3X0.75 B 08
Power Cord E H05VV-F3X0.75 6A H 06

RANK

8

: New Parts

RANK: Japan only