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Yamaha DG60-112, Service Manual

The Yamaha DG60-112 is a high-quality guitar amplifier that delivers exceptional tone and flexibility. Unlock the full potential of this powerful device by accessing its Service Manual for free, available for download at manualshive.com. Easily learn about its features and settings to optimize your performance and musical expression.

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DG60-112

9

Carbon Resistor
Metal Film Resistor
Metal Film Resistor
Metal Film Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor (chip)
Carbon Resistor (chip)
Carbon Resistor (chip)
Carbon Resistor (chip)
Carbon Resistor (chip)
Carbon Resistor (chip)
Carbon Resistor (chip)
Metal Film Resistor
Resistor Array
Resistor Array
Push Switch
Push Switch
Tact Switch
Transistor
Transistor
Rotary Variable Resistor
Quartz Crystal Unit
Quartz Crystal Unit
Zener Diode
Zener Diode

Circuit Board
Circuit Board

DESCRIPTION

R8
R9

R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
R40

-44

R45
R46
R47
R48
R49
R50
R51
R52
R53
R54
R55
R56
R57
R58
R59
R60
R61
R62

-65

R66
R67

RA1

-19

SW1
SW2
SW3

TR1

-5

VR1

X1
X2

ZD1
ZD2

REF NO.

HF755470
VA074400
VB064100
VB066500
HF756560
HF756560
HF755470
HF755470
HF756470
HF754330
HF756470
HF753470
HF756100
HF757270
HF757100
HF757100
HF756100
HF754470
HF758100
HF758100
HF754470
HF758100
HF757100
HF757100
HF756100
HF757270
HF757100
HF756220
HF756100
HF756100
HF758100
HF755100
HF757100
HF757100
HF756100
HF757100
HF758100
HF758220
HF757220
HF758220
HF757100
HF758470
HF757100
HF756470
HF756100
HF757100
HF758100
RD259100
RD255680
RD255220
RD255270
RD257100
RD257100
RD256470
VB066700
RE047100
RE047100
VR140800
VN121700
V3669300
IC287820
IC287820
V3739600
VN277000
VU682100
VQ454300
VQ454300

AAX07370
AAX07380

PART NO.

470.0 1/4 J
10.0K 1/5 F
470.0 1/5 F
2.7K 1/5 F
5.6K 1/4 J
5.6K 1/4 J
470.0 1/4 J
470.0 1/4 J
4.7K 1/4 J
33.0 1/4 J
4.7K 1/4 J
4.7 1/4 J
1.0K 1/4 J
27.0K 1/4 J
10.0K 1/4 J
10.0K 1/4 J
1.0K 1/4 J
47.0 1/4 J
100.0K 1/4 J
100.0K 1/4 J
47.0 1/4 J
100.0K 1/4 J
10.0K 1/4 J
10.0K 1/4 J
1.0K 1/4 J
27.0K 1/4 J
10.0K 1/4 J
2.2K 1/4 J
1.0K 1/4 J
1.0K 1/4 J
100.0K 1/4 J
100.0 1/4 J
10.0K 1/4 J
10.0K 1/4 J
1.0K 1/4 J
10.0K 1/4 J
100.0K 1/4 J
220.0K 1/4 J
22.0K 1/4 J
220.0K 1/4 J
10.0K 1/4 J
470.0K 1/4 J
10.0K 1/4 J
4.7K 1/4 J
1.0K 1/4 J
10.0K 1/4 J
100.0K 1/4 J
1.0M 0.1 J
680.0 0.1 J
220.0 0.1 J
270.0 0.1 J
10.0K 0.1 J
10.0K 0.1 J
4.7K 0.1 J
3.3K 1/5 F
10KX4
10KX4
SPPJ2-EN-PW
SKHHPP
SKHHLWA010
2SC2878 A,B
2SC2878 A,B
RK09L1120 20KB
24.576M AF3817CQA
30.00MHz DOC-49S2
MTZJ2.0A 2.0V
MTZJ2.0A 2.0V

MAIN
MAIN

EFFECT SEND/RETURN Level SW
TEST
SP MUTE

EFFECT BLEND

J,U

(XV964B0)

H,B

(XV964B0)

REMARKS

QTY

RANK

*

*

*
*

01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
03
01

01
01

03
06
01
01

*: 

New Parts

RANK

: 

Japan only

Summary of Contents for DG60-112

Page 1: ...5 Printed in Japan 99 08 GUITAR AMPLIFIER CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 BLOCK DIAGRAM 6 DISASSEMBLY PROCEDURE 6 LSI PIN DESCRIPTION 8 IC BLOCK DIAGRAM 10 SELF CHECK AND INSPECTIONS 12 PARTS LIST OVERALL CIRCUIT DIAGRAM CIRCUIT BOARDS ...

Page 2: ...es or establish a principal agent relationship of any form 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 Sho...

Page 3: ...EFFECT SEND RETURN level switch Indicator Peak Level Display LED Red Connection Jacks INPUT HIGH LOW EFFECT SEND RETURN LINE OUT PHONES FOOT SW CH SELECT REVERB All Standard Phone Mono Jack A D Converter 20 bit 3 bit floating D A Converter 20 bit Sampling Frequency 48 kHz Input Level Impedance INPUT HIGH 20 dBm THRU 1 MΩ INPUT LOW 10 dBm THRU 1 MΩ EFFECT RETURN 0 dBm 120 kΩ Output Level Impedance ...

Page 4: ... Master Volume MASTER Tone Controls TREBLE HIGH MID LOW MID BASS PRESENCE Reverb Volume REVERB Power Switch POWER Foot Switch FOOT SW Speaker Mute Switch SP MUTE Line Out Head Phone Jack LINE OUT PHONES Effect Send Return Level Switch 0 dB 20 dB Effect Send Jack EFFECT SEND Effect Return Jack RETURN Blend Knob BLEND Front Panel Rear Panel ...

Page 5: ...DM DM SW SW DM MAIN Bottom Top 1 5 MAIN 1 5 MAIN 1 5 MAIN 2 5 MAIN 3 5 MAIN 4 5 MAIN 5 5 A CH A CH Power transformer AC cord Top view Front view Rear view Side view DG60 112 5 CIRCUIT BOARD LAYOUT ...

Page 6: ...1 202 POWER AMP BT203 SW201 PUSH SW CH A B KEC 54180 POWER SUPPLY A CH BLOCK DIAGRAM DISASSEMBLY PROCEDURE DG60 112 6 30 Oval Head Screw 5 0X35 MFC2BL VP104600 60 Hexagonal Nut 4 0 MFZN2Y 03760900 70 Oval Head Yapping Screw 1 4 0X30 MFC2BL EN240090 Fig 1 70 120 30 60 Pre main unit Back board U Speaker Speaker wire Speaker 1 Pre Main Unit 1 1 Remove the four 4 screws marked 70 The back board U can ...

Page 7: ...AIN 1 5 Circuit Board Remove the eight 8 knobs marked 90B the eight 8 hexagonal nuts marked A the two 2 hexagonal nuts marked 130B and the five 5 screws marked 80B Remove the knob marked 100B and the knob marked 110 from the MAIN 1 5 circuit board Fig 2 MAIN 2 5 Circuit Board Remove the screw marked 290A Fig 2 MAIN 3 5 Circuit Board Remove the screw marked 290B Fig 2 MAIN 4 5 Circuit Board Remove ...

Page 8: ... Ground 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 A12 A13 A14 A15 A16 A17 A18 A19 VSS P60 WAIT P61 BREQ P62 BACK Ø STBY RES NMI VSS EXTAL XTAL VCC AS RD HWR LWR MD0 MD1 MD2 AVCC VREF P70 AN0 P71 AN1 P72 AN2 P73 AN3 P74 AN4 P75 AN5 P76 AN6 P77 AN7 AVSS P80 P81 CS3 P82 CS2 P83 CS1 P84 CS0 VSS...

Page 9: ...Ground Power supply CPU data bus DTACK signal output Serial data input Ground Power supply Serial data output Parallel data bus Power supply 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 15...

Page 10: ...A 4B 4B 4Y 4Y 3A 3A 3B 3B 8 GND 9 3Y DM IC 11 DM IC 12 DM IC 13 DM IC 9 DM IC 21 DM IC 10 PIN NO I O FUNCTION NAME PIN NO I O FUNCTION NAME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VREFH VREFL AINR AINR AINL AINL VA AGND DIF0 DIF1 LRCK SCLK SDTI SDTO I I I I I I I I I I I O Positive Voltage Reference Input VA Negative Voltage Reference Input AGND Rch Analog Positive Input Rch analog Negative Input Lch Ana...

Page 11: ...4 5 6 7 Q12 Q12 Q6 Q6 Q5 Q5 Q7 Q7 Q4 Q4 Q3 Q3 Q2 Q2 16 15 14 13 12 11 10 VDD Q11 Q11 Q10 Q10 Q8 Q8 Q9 Q9 CLR CL Input Pulses 8 Vss 9 Q1 Q1 DM IC 8 NE5532P IG102500 NJM4556AD XQ824A00 Dual Operational Amplifier 1 2 3 4 V 8 7 6 5 Output A V Non Inverting Input A DC Voltage Supply DC Voltage Supply Output B Inverting Input B Non Inverting Input B Inverting Input A DM IC 1 2 4 6 NJM072D IG107000 Dual ...

Page 12: ...ch LED will light CH SELECT JK5 When a plug is inserted into the CH SELECT jack JK5 the channel select function will go out and the A ch LED will light Removing the plug will make the A ch LED go out REVERB JK4 When a plug is inserted into the REVERB jack JK4 B ch LED will light Removing the plug will make the B ch LED go out SP MUTE SW3 When the SP MUTE switch SW3 is pressed both the A ch and B c...

Page 13: ...to set the voltage of the terminals of the CN204 or R252 at 5 mV 1 mV 3 2 Sound Check This Sound Check is performed by using a signal that goes through the following circuits the analog circuit the A D converter the DSP 3 and the D A converter This check should be performed after the VOLUME check has finished and when both the A ch and B ch LEDs CN5 2 3 are lit 0 dBm 0 775 V When Sound Check is co...

Page 14: ...d letter of the shaded part number is I not one 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 110 V W General export model 220 V N X General export model Y Export model Notes...

Page 15: ...DG60 112 2 OVERALL ASSEMBLY Pre main unit See page 4 Overall cabinet assembly See page 6 10 60 55 50 70 30 20 40 30 40 80 60 70 80 100 110 130 120 130 90 95 ...

Page 16: ...crew C Toothed Lock Washer B DESCRIPTION 10 10 10 10 20 30 40 50 60 70 80 90 95 100 110 120 130 REF NO V3691700 VP104600 EW300020 XW018A00 03760900 EN240090 VB890200 V2237300 V3623800 VC688900 ET900050 PART NO 5 0X35 MFC2BL 5S MFC2BL EMINENCE 1217F3831 4 0 MFZN2Y 4 0X30 MFC2BL 4S MFC2BL 3 0X10 FCM3 BL SP frame A4 0X8 MFZN2BL 4 0 MFZN2BL DG60 112 J V369020 U V369030 H V369040 B V369050 J V369130 U ...

Page 17: ...112 4 PRE MAIN UNIT 80 80 80 51 90 90 90 52 53 10 20 80 80 170 180 90 210 200 190 130 290 290 140 280 260 270 270 220 160 100 150 250 240 237 295 236 235 230 130 140 125 125 120 110 280 100 U model not used ...

Page 18: ...0 240 250 260 270 280 290 295 REF NO V3692500 V3817700 V3817800 V3755700 AAX07370 AAX07380 AAX07370 AAX07380 EP600190 EP600190 V3694100 VZ429100 VU859000 VU859100 V4126900 LX200060 VL802300 V3630000 V3630100 V3732600 ET800150 VD794100 VB004700 VJ388000 XV965A00 XV966A00 XV967A00 VZ461100 VV205600 VV058200 VV058300 EL200020 ET900050 V4491100 VV103000 VV103100 V3634000 V3693100 VC688900 V3637600 VB7...

Page 19: ...eet DESCRIPTION 10 15 25 30 40 50 55 67 70 90 100 110 REF NO V3691700 V3694400 V3833600 V3630300 V3743700 V3749500 03747400 VV085600 03747290 V3694800 PART NO 3 5X16 MFNI33 5 0X25 FNM3 2B 4 0X40 MFC2BL 4 0X30 MFZN2Y 4 0X20 MFZN2BL DG60 112 V369420 V369430 V369860 REMARKS 6 12 2 4 6 4 4 QTY RANK 01 01 01 OVERALL CABINET ASSEMBLY New Parts RANK Japan only Handle assembly 55 55 70 70 70 40 30 40 25 6...

Page 20: ...0 55 C56 C57 C58 C59 C60 C61 C62 65 C66 C67 C68 C69 72 C73 REF NO V3732600 AAX07370 AAX07380 AAX07370 AAX07380 V3732600 UN857100 FG651100 UA355100 UA355100 FG651220 UA353100 UN857100 FG651680 FG651220 UA353100 UR847100 VD930900 UR847100 UR847100 VD930900 UR847100 VD930900 VD930900 UR847100 UN857100 UR847100 FG651220 UN857470 FG613100 UN857100 UN857470 FG613100 UN857100 UR847100 FG651220 UN857100 U...

Page 21: ...G102500 IG102500 XT802A00 XQ824A00 IG102500 IG102500 XA507A00 XR684A00 XQ967A00 XD658A00 XD660A00 XD831A00 XR337A00 XQ962D00 XQ962D00 XV077A00 XV839A00 XW325100 XV995A00 XS790A00 XS790A00 XH603A00 VA078900 VA078900 VA078900 VA078900 V3669200 LB301800 LB302070 LB301800 LB301800 VA074400 VB068100 HF757100 HF757100 HF756560 HF756560 HF755470 PART NO F 0 100 25V Z 100 00 10 0V F 0 100 25V Z F 0 100 25...

Page 22: ...70 HF755470 HF756470 HF754330 HF756470 HF753470 HF756100 HF757270 HF757100 HF757100 HF756100 HF754470 HF758100 HF758100 HF754470 HF758100 HF757100 HF757100 HF756100 HF757270 HF757100 HF756220 HF756100 HF756100 HF758100 HF755100 HF757100 HF757100 HF756100 HF757100 HF758100 HF758220 HF757220 HF758220 HF757100 HF758470 HF757100 HF756470 HF756100 HF757100 HF758100 RD259100 RD255680 RD255220 RD255270 R...

Page 23: ...100 VV319600 VV291400 VV321100 VZ353500 UJ847100 VV321100 VZ354600 VZ353500 UJ847100 UJ847100 UJ847100 VZ353500 UJ866470 VV062800 UJ847100 UJ847100 VV520600 UJ866100 UJ866470 V3632700 V3632700 V3632800 V3632800 UJ847100 UJ847100 VZ354000 VZ354000 VZ354600 UJ639220 UJ639220 VZ354000 VZ354000 UJ847100 UJ866100 VZ353900 UJ867470 UJ867470 VZ353600 VZ353500 VZ353600 UJ858100 VV062800 VV062800 VZ354600 ...

Page 24: ...00 HF456470 HF457270 HF457100 HF457100 HF459100 HF456470 HF456470 HF457100 HF457100 HF456470 HF455100 HF456100 HF457100 HF457100 HF456120 HF458100 HF456100 HF457100 HF458100 HF457220 HF456220 HF458100 HF458100 HF456470 HF456470 HF458100 V3751900 V3751900 V3633200 HF456220 HF457560 HF455470 HF457120 HF456100 HF456150 HF456100 HF457560 HF456330 HF456560 HF456330 HF456100 HF455330 HF455330 VV276800 H...

Page 25: ...00 V3633500 V3633700 V3633700 V3633700 V3633700 VG440800 VG440800 V3752000 V3752000 XW018A00 XV965A00 XV966A00 XV967A00 VZ461100 VV205600 VV058200 VV058300 PART NO 2SA970 GR BL 2SA970 GR BL 2SC2705 O Y 2SC3421 O Y 2SA1358 O Y A1492C3856 Z 210 2SC3421 O Y B 1K TB655MC RK09L1120 10KB RK09L1120 10KB RK09L1120 10KB RK09L1120 10KB B C 2P L 50 2 0mm B C 6P L110 2 5mm B C 3P L130 2 5mm B C 3P L 50 2 0mm ...

Page 26: ...AMP OP AMP OP AMP ADC DAC D FF SHIFT REGISTER INVERTER COUNTER REGULATOR to MAIN 1 5 W202 BLEND EFFECT to MAIN 1 5 W201 DM DSP3 CPU DSP3 DRAM 4M OR AND RESET MULTIPLEXER MULTIPLEXER DATA SELECTOR KEC 54179 to MAIN 1 5 W203 SP MUTE to MAIN 1 5 W204 REVERB FOOT SW CH SELECT to MAIN 1 5 W207 to A CH W301 Ceramic Capacitor Metal Film Resistor Semiconductive Ceramic Capacitor See parts list for details...

Page 27: ...200 DIODE STACK S1VB20 VS197600 DIODE STACK 1 OUTPUT 2 COMMON 3 INPUT 1 2 3 DM Circuit Board A CH Circuit Board SW Circuit Board Pattern side Component side Component side Component side Component side Channel indicator B AMP select switch B AMP select switch A Channel indicator A LOW INPUT Peak indicator A B Channel select switch HIGH to DM CN2 DM CNA V373260 MAIN A CH SW CNA V366270 to DM CN1 Ma...

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