Yamaha DG-Stomp, DG-Stomp E Schematic

DG-Stomp

GUITAR PRE-AMPLIFIER WITH EFFECTS

SERVICE MANUAL

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

011537

GA

20001001-39800

CONTENTS

SPECIFICATIONS ................................................ 3/4

PANEL LAYOUT .................................... 5

BLOCK DIAGRAM

CIRCUIT BOARD LAYOUT ............... 10

WIRING ................................................................... 11

DISASSEMBLY PROCEDURE ............................ 12

LSI PIN DESCRIPTION .............................. 15

IC BLOCK DIAGRAM ................................... 18

CIRCUIT BOARDS ........................................ 20

TEST PROGRAM ................................. 28

ERROR MESSAGES ............................. 31

MIDI IMPLEMENTATION CHART......................................... 32

PARTS LIST
OVERALL CIRCUIT DIAGRAM

1.57K-786 I.T Printed in Japan 2000.09

............................ 8

HAMAMATSU, JAPAN

1

DG-Stomp

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

IMPORTANT NOTICE

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.

LITHIUM BATTERY HANDLING

This product uses a lithium battery for memory back-up.

WARNING : Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following pre-

Leave lithium battery replacement to qualified service personnel.
Always replace with batteries of the same type.
When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells.
Never solder directly to the cells. Perform the soldering as quickly as possible.
Never reverse the battery polarities when installing.
Do not short the batteries.
Do not attempt to recharge these batteries.
Do not disasemble the batteries.
Never heat batteries or throw them into fire.

ADVARSEL!

Lithiumbatteri-Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. lever det brugte
batteri tilbage til leverandren.

VARNING

Explosionsfara vid felaktigt batteribyte.
Anvand samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.
Kassera anvant batteri enligt fabrikantens instruktion.

VAROITUS

Paristo voi rajahtaa, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiiin.
Havita kaytetty paristo valmistajan ohjeiden mukaisesti.
The following information complies with Dutch official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES.

• Please refer to the diassembly procedure for the removal of Back-up Battery.

• Leest u voor het verwijderen van de backup batterij deze beschrijving.

cautions when handling or replacing lithium batteries.

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.

WARNING

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

22

2

SPECIFICATIONS

DG-Stomp

Digital Section

• Full Digital Signal Processing

• 8 Channel Preamp

• Digital Effects

• Compressor

• Chorus, Flanger, Phaser, Rotary Speaker, Tremolo

• Digital Delay, Tape Echo

• Spring Reverb, Hall Reverb, Plate Reverb

• Tap Tempo Function (Delay Time)

• Speaker Simulator (16 Types)

• External Controller Function (EXP Pedal/MIDI):8 Controllers/
Parameters

• Wah Function

• Tuner Function (Chromatic, Auto)

MIDI Functions

Receive: Program Change (Program Change Table can be

created), Control Change, Bulk In

Transmit: Program Change, Control Change, Bulk Out, Merge

Out

Controller Switch

Top Panel

Push Switch x17

UP, DO WN, MANUAL, UTILITY, STORE, COMP, CHORUS ,
FLANGER, PHASER, ROTARY, TREMOLO, DELAY , TAPE
ECHO, SPRING, HALL, PLATE, SP. SIM

Knob x15

AMP SELECT , GAIN, MASTER, TREBLE, MIDDLE, BASS,
PRESENCE, COMP, SPEED, DEPTH, TIME, FEEDBACK,
LEVEL, REVERB, OUTPUT

Footswitch x4

1, 2, 3, BANK

Rear panel

STAND-BY ON/OFF, INPUT LOW/HIGH

Display

7 Segment LED (3 digit) x1
Push Switch LED x17
Foot Switch LED x4

Connections/Jacks

INPUT: Standard Monaural Phone Jack
OUTPUT L/MONO, R: Standard Monaural Phone Jack
PHONES: Standard Stereo Phone Jack
EXP. PEDAL: Standard Stereo Phone Jack
DIGITAL OUT: COAXIAL
MIDI IN, MIDI OUT: 5 pin DIN

A/D Converter

20 bit + 3 bit Floating

D/A Converter

20 bit

Sampling Frequency

48 kHz

Memory Allocations

Preset: 90
User: 90

Input Level/Impedance
(When using preamp bypass)

INPUT HIGH: -25dBm/1Mohm
INPUT LOW: -15dBm/1Mohm

Output Level/Impedance

OUTPUT L/MONO, R: 0dBm/1kohm
PHONES: 0dBm/47ohms (47ohms load)

Power

Exclusive Power Adaptor (AC-10)
AC Output: AC12V, 1000mA

Power Consumption

15W

Dimensions (WxHxD)

280x70x184mm (11.0”x2.8”x7.2”)

Weight

2.2kg (4lbs 14oz)

Accessories

Power Adaptor (AC-10)
Owner’s Manual (this booklet)

3

DG-Stomp

4

PANEL LAYOUT

Top Panel

DG-Stomp

Display & Main Section

Effect Section

Foot Switch Section

Amp Section

Display & Main Section

q
w

y

e
r
t

Up Button (UP)

1

Down Button (DOWN)

2

Manual Button (MANUAL)

3

Utility Button (UTILITY)

4

Store Button (STORE)

5

Display

6

5

DG-Stomp

Amp Section

u i o !0

Amp Select Switch (LEAD1-CLEAN2)

7

Gain Control (GAIN)

8

Master V olume (MASTER)

9

Tone Controls

10

Output Level Control (OUTPUT)

11

Speaker Simulator Button (SP. SIM)

12

!2

!1

Effect Section

!5

!4 !6 !7 !9 @0 @1 @3

Compressor Button (COMP)

13

Compressor Knob (COMP)

14

Modulation Group Effect Buttons

15

(CHORUS/FLANGER/PHASER/ROTARY/TREMOLO)
Speed Knob (SPEED)

16

Depth Knob (DEPTH)

17

Delay Group Effect Buttons(DELAY/TAPE ECHO)

18

Time Knob (TIME)

19

Feedback Knob (FEEDBACK)

20

Level Knob (LEVEL)

21

Reverb Group Effect Buttons(SPRING/HALL/PLATE)

22

Reverb Knob (REVERB)

23

!8 @2!3

6

Foot Switch Section

Foot Switches 1, 2, 3

24

Bank Switch (TAP/BANK/TUNER)

25

DG-Stomp

@4 @5

Rear Panel

@6 @7 @8 @9 #0 #1 #2 #4#5

Power Switch (STAND-BY ON/OFF)

26

Power Adaptor Jack (AC IN 12V 700mA)

27

MIDI OUT Jack

28

MIDI IN Jack

29

Digital Out Jack (DIGITAL OUT)

30

EXP Pedal Jack (EXP. PEDAL)

31

Headphones Jack (PHONES)

32

Output Jacks (OUTPUT R, L/MONO)

33

Input Jack (INPUT)

34

Input Level Switch (LOW/HIGH)

35

#3

7

DG-Stomp

BLOCK DIAGRAM

A

2
4
1

PN 1/2

DM

IC308
IC309

IC101

31

IC1

AN0~AN3,SELECT-A,SELECT-B

(

DM-CN3

(

PN-CN302

)

)

IC102

21

IC102

67

IC103

216

IC2,IC3

7

IC103

IC9 IC8

PN 2/2

PN 1/2

5
6
3
4

IC104

26

27

CN301

IC10,IC11

PB0~PB7,SW-R0~R3

(

)

DM-CN1

(

)

PN-CN304

CN301

A'

8

DG-Stomp

A

IC105

31

IC105

57

2
3
1

IC106

31

IC106

57

LED-FOOT
LED-REV
LED-MOD
SW-001,SW-010,SW-100,SW-LINE

(

)

DM-CN2

(

)

PN-CN303

5
4
1

5
4
1

2
3
1

84

TXDO,RXDO

CLD,CIN,CCK

15,17

18
19

20

,
,

PN 2/2

IC112
IC113
IC114

KEC-54203

A'

9

DG-Stomp

CIRCUIT BOARD LAYOUT

DM

PN

1/2

PN

1/2

10

WIRING

PN

CN301

DG-Stomp

1/2

CN304

CN1 CN2 CN3

CN303

V611460V611450

CN302 CN305

V610850

CN306

V611470

Note) When installing the DM circuit board, use care not to
have the wire assembly caught by the bottom case.

PN

DM

2/2

V611480

CN103

11

DG-Stomp

DISASSEMBLY PROCEDURE

1. Bottom Case

Remove the six (6) screws marked [30]. The bottom
case can then be removed. (Fig. 1)

Bottom

[30]: Bind Head Tapping Screw-B 3.0x8 MFZN2BL (EP600190)

[30]

[30]

Fig.1

2. DM Circuit Board

2-1. Remove the bottom case. (See Procedure 1.)
2-2. Remove the four (4) scre ws marked [10c-a] and the

five (5) special hexagonal nuts marked [10e] from
the rear panel and the three (3) screws marked [10c-b]
from the DM circuit board. The DM circuit board can
then be removed. (Fig. 2)

Rear

[10c-a]

12

[10c-a]

Hexagonal Nut

Topcover

DG-Stomp

Battery VN103500

VN103600(Battery holder for VN103500)

DM

[10c-b]

[10c]: Bind Head Tapping Screw-B 3.0x8 MFZN2BL (EP600190)
[10e]: Hexagonal Nut 9.0 12x2 MFNI33 (LX200060)

Fig.2

3. PN Circuit Boards (1/2, 2/2)

3-1. Remove the bottom case. (See Procedure 1.)
3-2. Remove the DM circuit board. (See Procedure 2.)

3-3-1. PN1/2 Circuit Board

Remove the controls, knobs and special he xagonal nuts
from the front panel, the three (3) screws marked [10j]
and the shield film from the PN1/2 circuit board. The
PN1/2 circuit board can then be removed. (Fig. 3)

3-3-2. PN2/2 Circuit Board

Remove the four (4) special hexagonal nuts from
foot switches. The PN 2/2 circuit board can then be
removed. (Fig. 3)

• Notice for back-up battery removal

Push the battery as shows in figure,

then the battery will pop up.

PN

Hexagonal Nut

Hexagonal Nut

[10j]:Bind Head Tapping Screw-P 3.0x12 MFZN2BL (VC161100)

Fig.3

1/2

[10j]

2/2PN

[10j]

shield film

13

DG-Stomp

4. Heat Sink

4-1. Remove the two (2) screws marked [A-a] from the

soldered face of the DM circuit board and the three
(3) screws marked [A-b] from IC112, IC113 and
IC114. The heat sink can then be removed from the
DM circuit board. (Fig. 4)

Heat sink

[A-a]

IC114

IC113

IC112

Fig.4

[A-b]

[A-a]

14

LSI PIN DESCRIPTION

DG-Stomp

HD6413002FP16 (XQ375A00) CPU

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

NAME

PA6
PA7

VCC

PB0
PB1
PB2
PB3
PB4
PB5

PB6//DREQ0
PB7//DREQ1

/RESO

VSS
P90/TXD0
P91/TXD1

P92/RXD0
P93/RXD1
P94/SCK0
P95/SCK1

P40/D0
P41/D1
P42/D2
P43/D3

VSS

P44/D4
P45/D5
P46/D6
P47/D7

D10
D11
D12
D13
D14
D15

VCC

VSS

A10
A11

D8
D9

A0
A1
A2
A3
A4
A5
A6
A7

A8
A9

I/O

O
O

O
O

O

O

I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

O
O
O
O
O
O
O
O

O
O
O
O

FUNCTION

Port A
Address bus

I
I
I
I
I
I
I
I

I
I

I

Power supply

Port B

Reset
Ground
Transmit data (MIDI OUT)
KSN-ACK
Receive data (MIDI IN)
KSN-RX
Port 9
Port 9

(Ground)

Data bus

Power supply

Address bus

(Ground)

PIN
NO.

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

NAME

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
PA0
PA1
PA2
PA3
PA4
PA5

I/O

O
O
O
O
O
O
O
O

O

O
O

O
O
O

O
O
O
O
O

O
O
O

DM: IC12

FUNCTION

Address bus

I
I
I

I
I
I

I

I
I
I

I
I
I
I
I
I
I
I
I

I
I
I

Ground
Port 6
Øout

Stand-by mode signal
Reset
Non-maskable interrupt
Ground
Clock
Clock
Power supply
Address strobe
Read strobe
Write strobe (High)
Write strobe (Low)

Mode select
Analog power supply

Reference voltage
Analog data input (EQ)
Analog input (EQ)
Analog data input
Analog input (CS)
Analog data input (BEND)
Analog input (MOD)
Analog input (FC)
Analog input (BAT)
Analog ground
Port 8

Chip select

Ground

Port A

15

DG-Stomp

YSS910-S (XV988A00) DSP6 (Digital Signal Processor)

PIN
NO.

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
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

1
2
3
4
5
6
7
8
9

Vdd
Vss

XI

XO

Vdd

/SYNCI

/SYNCO

Vdd
CKI

CKO

CKSEL

Vss

MCKS

/SSYNC

/IC

/TEST

BTYP

/IRQ

TRIG

Vdd
Vss
/CS

/WR

/RD
CA7
CA6
CA5
CA4
CA3
CA2
CA1

Vss

Vdd

CD15
CD14
CD13
CD12
CD11
CD10
CD09
CD08
CD07
CD06

Vss

Vdd

Vdd

CD05
CD04
CD03
CD02
CD01
CD00

/WAIT

Vss

SI0

SI1

SI2

SI3

SI4

SI5

SI6

SI7

Vss

Vdd
SO0
SO1
SO2
SO3
SO4
SO5
SO6
SO7

Vss

DB00
DB01
DB02
DB03
DB04
DB05
DB06
DB07
DB08
DB09
DB10
DB11
DB12

Vdd

Vdd

I/O FUNCTIONNAME

Power supply (3.3 V)
Ground
System master clock input (60 MHz or 30 MHz)

I

System master clock output (High or 30 MHz)
Power supply (5 V)
Sync. signal input

I

Sync. signal output
Power supply (5 V)
System clock input (30 MHz)

I

System clock output (30 MHz)
System master clock select (0: 60 MHz, 1: 30 MHz)

I

Ground
Serial I/O master clock input (128 x Fs)

I

Serial I/O Sync. signal output

I

Initial clear

I

Test mode setting (0: Test, 1: Normal)

I

Data bus type select (0: 8 bit, 1: 16 bit)

I

IRQ output
Trigger signal input/output
Power supply (5 V)
Ground
chip select signal input

I

Write signal input

I

Read signal input

I

Address bus of internal register

Ground
Power supply (3.3 V)

Data bus of internal register

Ground
Power supply (3.3 V)
Power supply (5 V)

Data bus of internal register

WAIT output

Ground
I
I
I
I

Serial data input

I
I
I
I

Ground

Power supply (5 V)

Serial data output

Ground

Parallel data bus

Power supply (5 V)

Power supply (3.3 V)

I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

O

O

O

O

O

O
O
O
O
O
O
O
O

PIN
NO.

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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

89
90
91
92
93
94
95
96
97
98
99

Vss
DB13
DB14
DB15
DB16
DB17
DB18
DB19
DB20
DB21
DB22

Vss

Vdd
DB23
DB24
DB25
DB26
DB27
DB28
DB29
DB30
DB31

TIMO/DBOB

Vss

Vdd
DA00
DA01
DA02
DA03
DA04
DA05
DA06
DA07

Vss
DA08
DA09
DA10
DA11
DA12
DA13
DA14
DA15

Vss

Vdd

(n.c)

Vdd
DA16
DA17
DA18
DA19
DA20
DA21
DA22
DA23

Vss
DA24
DA25
DA26
DA27
DA28
DA29
DA30
DA31

Vdd

Vss

A00

A01

A02

A03

A04

A05

A06

A07

A08

A09

Vss

Vdd

A10

A11

A12

A13

A14

A15/RAS
A16/CAS

A17/CE

/WE
/OE
Vdd

I/O FUNCTIONNAME

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

DM: IC8, IC9

Ground

Parallel data bus

Ground
Power supply (3.3 V)

Parallel data bus

Timing signal output/ Parallel data bus output/ input
Ground
Power supply (5 V)

Memory data bus

Ground

Memory data bus

Ground
Power supply (3.3 V)
Not used
Power supply (5 V)

Memory data bus

Ground

Memory data bus

Power supply (5 V)

O
O
O
O
O
O
O
O
O
O

O
O
O
O
O
O
O
O
O
O

Ground

Memory address (SRAM, PSRAM, DRAM)

Ground
Power supply (3.3 V)

Memory address (SRAM, PSRAM, DRAM)

Memory address (SRAM, PSRAM)
Memory address (SRAM, PSRAM), /RAS (DRAM)

Memory address (SRAM, PSRAM), /CAS (DRAM)
Memory address (SRAM), /CE (PSRAM)
Memory write enable signal
Memory output enable signal
Power supply (5 V)

16

DG-Stomp

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14

I/O

I
I
I
I
I
I

-

­I
I
I
I
I

O

VREFH

VREFL

AINR+

AINR-

AINL+

AINL-

VA

AGND

DIF0

DIF1
LRCK
SCLK

SDTI
SDTO

NAME

Positive Voltage Reference Input, VA
Negative Voltage Reference Input, AGND
Rch Analog Positive Input
Rch analog Negative Input
Lch Analog Positive Input
Lch analog Negative Input
Analog Power Supply
Analog Ground
Audio Data Interface Format
Audio Data Interface Format
Input/Output Channel Clock
Audio Serial Data Clock
Audio Serial Data Input
Audio Serial Data Output

FUNCTION

PIN
NO.

15
16
17
18
19
20
21
22
23
24
25
26
27
28

I/O

I
I

I
I/O
I/O

I

-

­I
I

I
O
O
O

MCLK
DEM0
DEM1

TST3
TST2
TST1

VD

DGND
/PWDA
/PWAD

CMODE

AOUTL

AOUTR

VCOM

NAME

Master Clock Input
De-emphasis Frequency Select
De-emphasis Frequency Select

Test Pins (Pull Down Pins)
Digital Power Supply

Digital Ground
DAC power-Down Mode
ADC power-Down Mode
Master Clock Select (“H”:384 fs,“L”:256 fs)
Lch Analog Output
Rch Analog Output
Common Voltage Output, VA/2

FUNCTION

AK4520A-VF-E2 (XT802A00) DAC & ADC

DM: IC104

YM3437C-F (XM530A00) DIT2 (Digital Format Interface Transmitter)

PIN
NO.

1
2
3
4

5
6
7

8

Vss

MCLK

DM0
DM1

RES

WCIN

DIN

V

DD

I/O FUNCTIONNAME

I
I
I

I
I
I

Ground
Master clock input
DIN/BCLK/WCLK format select
DM1,DM0=0,0 DSP,LDSP (64 bit,LSB first)
DM1,DM0=0,1stereo,DSP (64 bit,MSB first)
DM1,DM0=1,0 DSP2 (128 bit,MSB first)
DM1,DM0=1,1 BB (64 bit,MSB first)
System reset
Word clock input
Digital audio serial data input

Power supply (+5 V)

PIN
NO.

10
11
12

13
14
15

16

9

MUTE

VFL

CCK

CIN

CLD

CNTR

CSM

DOUT

I/O FUNCTIONNAME

I
I
I
I

I
I
I

O

Mute
Validity flag
C,U bit clock input/C bit data input
C,U bit data input/U bit data input

End of C,U bit input/16,20 bit/24 bit select
32 bit counter reset/Top of block
Channel status input mode select
CSM=0 Asynchronous mode
CSM=1 Synchronous mode
Digital interface formatted data output

DM: IC17

17

DG-Stomp

IC BLOCK DIAGRAM

MB3790PF(XR967A00)

DM: IC4

ASSP

1

N.C.

V

2

BAT1

3

V

OUT

4

V

OUT

5

V

BAT2

6

ALARM1

ALARM1

7

8 9

GND RESET

16

15

14

13

12

11

10

CONTROL

N.C.

V

IN

V

IN

V

SENSE

C

T

RESET

CONTROL

V

SENSE

GND

R

CN

V

IN

14

V

IN

13

16

590kΩ

Reference

Voltage

1.24V

Power Supply

Circuit

12

240kΩ

8

0.5Ω

500Ω

Q

S

R

V th:1.5V

3µA

V th:3V

11

T

C

2.65V

2.37V

5

BAT2V BAT1

V

100Ω

SBD

2

3

V

OUT

V

OUT

4

V

IN

ALARM1

6

V

IN

7

ALARM2

V

OUT

9

RESET

V

OUT

10

RESET

74AHC32DT(XZ103A00)

DM: IC5, IC6

OR

11A

2

1B

3

1Y

2A

4

2B

5

2Y

6

GND

7

V

CC

14

4B

13

4A

12

4Y

11

3B

10

3A

9

3Y

8

74HC244DT(XZ109A00)

DM: IC14, IC15, IC16

Bus Buffer

1 20

1G

2 19

1A1

3 18

2Y4

4 17

1A2

5 16

2Y3

6 15

1A3

7 14

2Y2

8 13

1A4

9 12

2Y1

10 11

VDD(Vcc)

2G

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1 (GND)Vss

74HC08DT(XZ108A00)

DM: IC7

AND

1

2

1B

3

1Y

4

2Y

5

2A

6

2B

7

Vss

141A

VDD

13

4B

12

4A

11

4Y

10

3Y

9

3A

8

3B

74HCU04DT (XZ110A00)

DM: IC107

INVERTER

11A

2

1Y

3

2A

2Y

4

3A

5

3Y

6

V

7

SS

DD

V

14

6A

13

6Y

12

5A

11

5Y

10

4A

9

4Y

8

74HC175DT(XZ113A00)

DM: IC110

Quad D-Type Flip-Flop

1

2

1Q

CL

Q

CK

Q D

3

1Q

4

1D

5

2D

6

2Q

CK CK

Q

CL QCL

7

2Q

8 9Vss CK

16CL

VDD

15

4Q

C LQ

CK

D Q

14

4Q

13

4Q

12

3D

11

3Q

DQD

Q

10

3Q

TC74HC4040F(XR684A00)

DM: IC108

12-Stage Binary Ripple Counter

1

Q12

Q12

2

Q6

Q6

3

Q5

Q5

4

Q7

Q7

5

Q4

Q4

6

Q3

Q3

7

Q2

Q2

8

Vss

16

15

Q11

14

Q10

Q8

13

12

Q9

11

CL

CK

10

Q1

9

VDD

Q11

Q10

Q8

Q9

CLR

Input Pulses ( )

Q1

18

DG-Stomp

74HC374DT(XZ102A00)

PN: IC301~IC307

D-FF

CONTROL

GND

1OUT PUT

2

1Q

Q

OE OE

3

1D

DCK

4

2D

CK

D

OE

Q

Q

OE OE

D

CK

D

CK CK

Q

OE

OEOE

5

2Q

6

3Q

7

3D

4D

8

4Q

9

10

CC

V

20

8Q

19

Q

8D

18

DCK

7D

17

CK

D

7Q

16

Q

6Q

15

Q

D

CK

6D

14

5D

13

D

5Q

Q

12

CLOCK

11

NJM5532M (XC011A00)

DM: IC102, IC103, IC106

NJM4556AMT1 (XQ138A00)

DM: IC105

OP AMP

74HC4052DT(XZ101A00)

PN: IC308, IC309

Multiplexer

Y-COM

1

OY

2

2Y

2Y

3

Y-COM

4

3Y

3Y

5

1Y

1Y

6

INH

INH

7

EE

V

8

V

SS

0Y

X-COM

B

16

DD

V

15

2X

2X

14

1X

1X

13

X-COM

12

0X

OX

11

3X

3X

10

A

A

9

B

NJM072M(XC458A00)

DM: IC101

OP AMP

Output A

Inverting
Input A

Non-Inverting
Input A

–DC Voltage
Supply

1

+

–

2

3

4

–V

+DC Voltage

8

Supply
Output B

7

+

–

Inverting

6

Input B
Non-Inverting

5

Input B

A OUT

A IN

A+IN

1

2

3

4

V

V+

8

7

B OUT

B IN

6

B+IN

5

19

DG-Stomp

N

CIRCUIT BOARDS

DM Circuit Board

A

CN101: N.C.

CN103:
to PN1/2-CN301

CN102: N.C.

20

to P

A'

Battery VN103500

VN103600(Battery holder for VN103500)

• Notice for back-up battery removal

Push the battery as shows in figure,

then the battery will pop up.

DG-Stomp

A

CN104: N.C.to PN1/2-CN304to PN1/2-CN303to PN1/2-CN302

A'

Component side

DM: CNA-V588000 0

21

DG-Stomp

DM Circuit Board

A

22

A'

DG-Stomp

A

A'

Pattern side

23

DG-Stomp

PN 1/2 Circuit Board

A

to PN2/2-CN306 to DM-CN3

A'

24

PN 2/2 Circuit Board

LD302, LD303, LD304 and LD306 installation

Anode

A

A'

PN: CNA-V587990 0

DG-Stomp

A

to DM-CN103

A'

to DM-CN2 to DM-CN1

A

A'

Component side

Component side

25

DG-Stomp

PN 1/2 Circuit Board

A

PN 2/2 Circuit Board

A'

A

to SWto SW

A'

26

DG-Stomp

A

SW

Pattern side

A'

A

to PN1/2-CN305

to SW

A'

to SW

Pattern side

27

DG-Stomp

TEST PROGRAM

A. Connect each terminal as follows

• INPUT Monaural input

• OUT L/MONO Monaural output (RL47Kohm)

• OUT R Monaural output (RL47Kohm)

• HEAD PHONES Stereo output (323ohm each)

• EXP. PEDAL Connect VR of B50K.
Pin 1 of JK: MIN of VR, Pin 2 of JK: MAX of VR, Pin3
of JK: CENTER of VR

• DIGITAL OUT Connect the DA converter.

• MIDI IN, MIDI OUT Connect IN and OUT by using

DIN 5P cable.

• HIGH/LOW SW Used to select the input lev el.
OFF: 0dB, ON: +10dB

• AC IN Connect the AC adapter.

• STAND-BY SW Power switch

B. TEST PROGRAM

0: LED Check
1: SW Check
2: VR Check
3: Battery Check
4: MIDI Check
5: SRAM Check
6: DSP Check

C. STARTING THE TEST PROGRAM

While pressing the MANUAL, STORE and HALL s witches,
turn on the POWER switch. The TEST program will then
be started.

D. SELECTING THE TEST NUMBER

Using the UP and DOWN switches, select the test n umber
and press the STORE switch to confirm selection.

E. TEST PROCEDURE
0: LED Check

• Using the UP and DOWN switches, select “0” and

then press the STORE switch.

• LED segments light up one after another starting with

“UP”. When “SP.SIM” is reached, “BANK”, “3”, “2” and
“1” light up followed by 7 segments in the f ollowing
order from the left end. After that, all LED segments
light up and go out.

123

1

2

7

6

3

5

8

4

28

1: SW Check

• Using the UP and DOWN switches, select “1” and
then press the STORE switch.

• Starting with the UP switch, press the switches whose
LED lights up one after another. After “SP.SIM”, “BANK”,
“3”, “2” and “1”, all LED segments should light up and
then go out.

• Numbers (0 to 20) are indicated at the right end of the
7 segment LED.

• If “E” representing an error appears at the left end,
press the UTILITY switch for resetting.

2: VR Check

• Using the UP and DOWN switches, select “2” and
then press the STORE switch.

• Execute checking with “AMP SELECT” and “GAIN” to
“PRESENCE” in that order, next from “COMP” to
“REVERB” and finally until “EXP. PEDAL”

• Turn the control fully in the direction toward the left 7
segment LED which is turned on. If the test result is
OK, the right 7 segment LED lights up. Then turn the
control to that direction. If the test result is OK, proceed
to the next VR. After completing this check, return the
control to the center position.

• If an error exists outside of the control being checked,
“E” meaning an error appears at the left end. In such
case, press the UTILITY switch for resetting.

• At the end of all VR checks , all LED segments light up
and go out.

DG-Stomp

3: Battery Check

• Using the UP and DOWN switches, select “3” and
then press the STORE switch.

• If the check result is OK, all LED segments light up
and go out.

• “E” appears in case of an error.

4: MIDI Check

• Using the UP and DOWN switches, select “4” and
then press the STORE switch.

• If the check result is OK, all LED segments light up
and go out. Then checking advances to the next step.

• In case of an error, “E” is indicated by LED.

• The numeric figure at the right end of LEF represents,
0: transmission and 1: reception.

5: SRAM Check

• Using the UP and DOWN switches, select “5” and

then press the STORE switch.

• If the check result is OK, all LED segments light up

and go out.

• “0” and “1” at the right end represent IC2 and IC3

respectively.

29

DG-Stomp

6: DSP Electric Characteristic

• Using the UP and DOWN switches, select “6” and
then press the STORE switch.The output le vel becomes
the same when the right end No. is “0” and when it is “1”.

• The output level, noise level and distortion rate can
be checked by inputting the signal for measurement
(by shorting the input with GND for the noise level check).

• Initial setting: HIGH/LOW SW (SW101) ••• OFF
(LOW), VR ••• Center, OUTPUT VR ••• MAX

ITEM INPUT OUTPUT

1.INPUT sensitivity

2.INPUT sensitivity

3.INPUT sensitivity

4.INPUT sensitivity

5.INPUT sensitivity

6.INPUT sensitivity

7.INPUT sensitivity

8.INPUT sensitivity

9.INPUT sensitivity

10.INPUT sensitivity

11.INPUT sensitivity

12.INPUT sensitivity

13.INPUT sensitivity

14.INPUT sensitivity

15.INPUT sensitivity

16.NOISE LEVEL

17.NOISE LEVEL

18.NOISE LEVEL

19.NOISE LEVEL

20.DISTORTION FACTOR

21.DISTORTION FACTOR

22.DISTORTION FACTOR

23.DISTORTION FACTOR

24.Digital Out

JK101(INPUT) -5dBm(1kHz)
JK101(INPUT) -5dBm(10kHz)
JK101(INPUT) -5dBm(100Hz)
JK101(INPUT) -25dBm(100Hz)
JK101(INPUT) -25dBm(10kHz)
JK101(INPUT) -25dBm(1kHz)
JK101(INPUT) -5dBm(1kHz)
JK101(INPUT) -5dBm(10kHz)
JK101(INPUT) -5dBm(100Hz)
JK101(INPUT) -25dBm(100Hz)
JK101(INPUT) -25dBm(10kHz)
JK101(INPUT) -25dBm(1kHz)
JK101(INPUT), SW101 ON -35dBm(1kHz)
JK101(INPUT), SW101 ON -35dBm(10kHz)
JK101(INPUT), SW101 ON -35dBm(100Hz)
JK101(INPUT)/No Filter/GND short
JK101(INPUT)/No Filter/GND short
JK101(INPUT)/No Filter/GND short
JK101(INPUT) /No Filter/GND short
JK101(INPUT) /No Filter-5dBm(1kHz)
JK101(INPUT)/No Filter -25dBm(1kHz)
JK101(INPUT)/No Filter -5dBm(1kHz)
JK101(INPUT)/No Filter -25dBm(1kHz)
JK101(INPUT)/No Filter -15dBm(1kHz)

JK103(OUT L/MONO) +1.0dBm+/-3dB
JK103(OUT L/MONO) +1.0dBm+/-3dB
JK103(OUT L/MONO) +1.0dBm+/-3dB
JK104(OUT R) -1.0dBm+/-3dB
JK104(OUT R) -1.0dBm+/-3dB
JK104(OUT R) -1.0dBm+/-3dB
JK102(HP L) -0.5dBm+/-3dB
JK102(HP L) -0.5dBm+/-3dB
JK102(HP L) -1.5dBm+/-3dB
JK102(HP R) -3.5dBm+/-3dB
JK102(HP R) -2.5dBm+/-3dB
JK102(HP R) -2.5dBm+/-3dB
JK104(OUT R) -0.5dBm+/-3dB
JK104(OUT R) -0.5dBm+/-3dB
JK104(OUT R) -0.5dBm+/-3dB
JK103(OUT L/MONO) -45dBm
JK104(OUT R) -45dBm
JK102(HP L) -45dBm
JK102(HP R) -45dBm
JK103(OUT L/MONO) 0.5%
JK104(OUT R) 0.5%
JK102(HP L) 0.5%
JK102(HP R) 0.5%
JK2(Digital Out) Lch -18dBm+/-3dB Rch 0dBm+/-3dB

F. HOW TO CONFRIM ROM VERSION

T urn on the power while pressing “DO WN” and “MANUAL
SW” switches , and the model name appears as dG.S
for about 2 seconds and then the version number as *.**
also for about 2 seconds. (Each * represents a numeric
figure.) Read that number for confirmation. The normal
mode will then be resumed.

30

DG-Stomp

ERROR MESSAGES

If an error occurs during operation, one of the following error message numbers will appear on the display.

E1: MIDI Receive Buffer Full

CAUSE: Too much MIDI data is being received by the DG amplifier at one time.
SOLUTION:Try reducing the amount of data being sent or, break the data into smaller blocks.

E2: Communication Error.

CAUSE: An abnormality is detected during MIDI communications.
SOLUTION:Check all connections, etc. and try again.

E3: Bulk Receive Check Sum Error.

CAUSE: The check sum does not match the received MIDI bulk data.
SOLUTION:Check all connections and data, and try again.

E4: Bulk Receive Data Abnormality.

CAUSE: An abnormality is detected in the received MIDI bulk data.
SOLUTION:Check all connections and data, and try again.

E5: Backup Battery Error.

CAUSE: Backup battery power is depleted.
SOLUTION:Continued use of the device will result in the loss of data. Return the device to the music

dealer where you purchased it or, have the battery replaced.

31

DG-Stomp

YAMAHA [ Guitar Pre Amplifier with Multi Effects] Date:30-Jun-2000
Model DG stomp MIDI Implementation Chart Version : 1.0
+----------------------------------------------------------------------+
: : Transmitted : Recognized : Remarks :
: Function ... : : : :
:-------------------+----------------+----------------+----------------:
:Basic Default : 1 - 16 : 1 - 16, off : memorized :
:Channel Changed : 1 - 16 : 1 - 16, off : :
:-------------------+----------------+----------------+----------------:
: Default : 1,3 : 1,3 : memorized :
:Mode Messages : x : x : :
: Altered : ************** : x : :
:-------------------+----------------+----------------+----------------:
:Note : x : x : :
:Number : True voice: ************** : x : :
:-------------------+----------------+----------------+----------------:
:Velocity Note ON : x : x : :
: Note OFF : x : x : :
:-------------------+----------------+----------------+----------------:
:After Key's : x : x : :
:Touch Ch's : x : x : :
:-------------------+----------------+----------------+----------------:
:Pitch Bender : x : x : :
:-------------------+----------------+----------------+----------------:
: 0 : x : x : :
: 1 - 31 : o : o : :
: 32 - 63 : x : x : :
: 64 - 95 : o : o : :
: Control 95 -127 : x : x : :
: : : : :
: Change : : : :
: : : : :
: : : : :
: : : : :
: : : : :
: : : : :
: : : : :
:-------------------+----------------+----------------+----------------:
:Prog : o 0 - 127 : o 0 - 127 : :
:Change : True # : ************** : : :
:-------------------+----------------+----------------+----------------:
:System Exclusive : o : o : Bulk Dump :
:-------------------+----------------+----------------+----------------:
:System : Song Pos. : x : x : :
: : Song Sel. : x : x : :
:common : Tune : x : x : :
:-------------------+----------------+----------------+----------------:
:System :Clock : x : x : :
:Real Time :Commands: x : x : :
:-------------------+----------------+----------------+----------------:
:Aux :All Sound OFF: x : x : :
: :

Reset All Cntrls

: x : x : :
: :Local ON/OFF : x : x : :
: :All Notes OFF: x : x : :
:Mes- :Active Sense : o : x : :
:sages:Reset : x : x : :
:-------------------+----------------+----------------+----------------:
: :
: :
+-------------------+----------------+----------------+----------------+
Mode 1 : OMNI ON, POLY Mode 2 : OMNI ON, MONO o : Yes
Mode 3 : OMNI OFF, POLY Mode 4 : OMNI OFF, MONO x : No

32

GUITAR PRE-AMPLIFIER WITH EFFECTS

PARTS LIST

CONTENTS

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

ELECTRICAL PARTS ............................................. 4

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.

DG-Stomp

OVERALL ASSEMBLY

10a

P10-2

10b

10f

10e

70

P90

40

60

80

50

10c

P10-1

P20

P50

P40

30

100

10

10h

10d-2

10g

P30

P60

10j

10i

10d

10d-1

10c

20

2

DG-Stomp

REF NO. PART NO. DESCRIPTION REMARKS QTY

10 Top Cover Assembly (V573420)

*

10a Top Cover

*

*

*

*
*

*
*
*

V5734300

10b Meter Cover

V5734500

10c Bind Head Tapping Screw-B 3.0X8 MFZN2BL 701

EP600190

10d Circuit Board Assembly (V600780)

10d-1 Circuit Board DG-STOMP

V5880000

10d-2 Lithium Battery CR2450 03

VS246400

10e Hexagonal Nut 9.0 12X2 MFNI33 501

LX200060

10f Flat Washer 9X14 0.5 FNM3 501

VL802300

10g Toothed Lock Washer-A 9.0 MFZN2Y 501

ET800150

10h Circuit Board Assembly (V600800)

10i Shield Film (V585150)
10j Bind Head Tapping Screw-P 3.0X12 MFZN2BL 301

VC161100

20 Bottom Case

V5734400

30 Bind Head Tapping Screw-B 3.0X8 MFZN2BL 601

EP600190

40 Knob (CH) DG60-112 702

V3694100

50 Spacer

V5851800

60 Knob (FX) 8

V5852300

70 Button(S) GRAY 01

VZ429100

80 Button(L) NO.947 CD-GRAY 01

VZ968600

100 Leg SR200 401

VU859300

P10-1 Circuit Board

AAX19500

P10-2 Circuit Board (Foot SW Sheet)

AAX19510

P20 Button 17

V5852100

P30 Wire Assembly C&C #28 12P L100 (V611450)
P40 Wire Assembly C&C #28 11P L100 (V611460)
P50 Wire Assembly C&C #28 9P L100 (V611470)
P60 Wire Assembly C&C #28 6P L250 (V611480)
P90 Wire Assembly C&C #28 14P L 50 (V610850)

OVERALL ASSEMBLY DG-STOMP
Overall Assembly (V573350)

--

--

--

--

--

Circuit Board Assembly PN (V600800)

--

Circuit Board (AAX19500+AAX19510) (V587990)

--

--

--

--

--

--

RANK

*
*
*

V5882800
V5883000
V5883100

Accessories
AC Adapter AC-10 J J
AC Adapter AC-10 U,C U, C
AC Adapter AC-10 H H

: New Parts

RANK: Japan only

3

DG-Stomp

ELECTRICAL PARTS

REF NO. PART NO. DESCRIPTION REMARKS QTY

*
*
*

*

*
*

*
*

*
*

*
*

*
*
*

*
*

*
*
*
*
*
*
*
*
*
*
*
*
*
*

*
*
*
*
*
*
*
*
*
*
*

*

*
*

*
*

*
*
*

V5880000
AAX19500
AAX19510

V5880000

VB763800
VK863100

BT1 Battery Holder CR2450BH 03

VS246300

C1 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-9 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C10 Electrolytic Cap. 100.00 16.0V 01

UR838100

C11 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-18 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C19 Electrolytic Cap. 100.00 16.0V 01

UR838100

C20 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-29 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C30 Electrolytic Cap. 10.00 35.0V 01

UR857100

C31 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C32 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C33 Electrolytic Cap. 10.00 35.0V 01

UR857100

C34 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C35 Electrolytic Cap.(chip) 12P 50V J

UX061120

C36 Electrolytic Cap.(chip) 12P 50V J

UX061120

C37 Electrolytic Cap. 100.00 16.0V 01

UR838100

C38 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-47 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C48 Electrolytic Cap. 100.00 16.0V 01

UR838100

C49 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-56 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C57 Electrolytic Cap.(chip) 0.0100 50V K

UX064100

C58 Electrolytic Cap.(chip) 0.0100 50V K

UX064100

C59 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-73 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C74 Electrolytic Cap.(chip) 220P 50V J

UX062220

C75 Electrolytic Cap.(chip) 0.0100 50V K

UX064100

C76 Electrolytic Cap.(chip) 0.0100 50V K

UX064100

C77 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C78 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C79 Electrolytic Cap.(chip) 0.0100 50V K

UX064100

C101 Electrolytic Cap.(chip) 0.2200 50V Z

UY065220

C102 Electrolytic Cap.(chip) 100P 50V J

UX062100

C103 Electrolytic Cap. 10.00 35.0V 01

UR857100

C104 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C105 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C106 Electrolytic Cap.(chip) 10P 50V D

UX061100

C107 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C108 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C109 Electrolytic Cap.(chip) 22P 50V J

UX061220

C110 Electrolytic Cap.(chip) 1000P 50V K

UX063100

C111 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C112 Electrolytic Cap.(chip) 68P 50V J

UX061680

C113 Electrolytic Cap.(chip) 22P 50V J

UX061220

C114 Electrolytic Cap.(chip) 1000P 50V K

UX063100

C115 Electrolytic Cap. 10.00 35.0V 01

UR857100

C116 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C117 Electrolytic Cap. 10.00 35.0V 01

UR857100

-122 Electrolytic Cap. 10.00 35.0V 01

UR857100

C123 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C124 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C125 Electrolytic Cap. 10.00 35.0V 01

UR857100

C126 Electrolytic Cap. 10.00 35.0V 01

UR857100

C127 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C128 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C129 Electrolytic Cap. 10.00 35.0V 01

UR857100

C130 Electrolytic Cap.-BP 10.00 35.0V

V6197100

-132 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C133 Electrolytic Cap.(chip) 22P 50V J

UX061220

C134 Electrolytic Cap. 10.00 35.0V 01

UR857100

: New Parts

ELCTRIC PARTS
Circuit Board DM
Circuit Board
Circuit Board (Foot SW Sheet)

Circuit Board DM
Heat Sink (V573470)

--

Bind Head Screw SP 3.0X12 MFZN2Y 5 01
IC Socket DICF-42CS-E 03

RANK: Japan only

RANK

4

DG-Stomp

REF NO. PART NO. DESCRIPTION REMARKS QTY

C135 Electrolytic Cap.-BP 47.00 25.0V

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V6197000

C136 Electrolytic Cap.(chip) 1000P 50V K

UX063100

C137 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C138 Electrolytic Cap.(chip) 22P 50V J

UX061220

C139 Electrolytic Cap. 10.00 35.0V 01

UR857100

C140 Electrolytic Cap.-BP 47.00 25.0V

V6197000

C141 Electrolytic Cap.(chip) 1000P 50V K

UX063100

C142 Electrolytic Cap.(chip) 22P 50V J

UX061220

C143 Electrolytic Cap. 10.00 35.0V 01

UR857100

C144 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C145 Electrolytic Cap.(chip) 100P 50V J

UX062100

C146 Electrolytic Cap.(chip) 22P 50V J

UX061220

C147 Electrolytic Cap. 10.00 35.0V 01

UR857100

C148 Electrolytic Cap.-BP 10.00 35.0V

V6197100

C149 Electrolytic Cap.(chip) 100P 50V J

UX062100

C150 Electrolytic Cap. 100.00 25.0V 01

UR848100

C151 Electrolytic Cap. 100.00 25.0V 01

UR848100

C152 Electrolytic Cap. 10.00 35.0V 01

UR857100

C153 Electrolytic Cap. 10.00 35.0V 01

UR857100

C154 Electrolytic Cap. 1.00 50.0V 01

UR866100

C155 Electrolytic Cap. 4.70 50.0V 01

UR866470

C156 Electrolytic Cap. 100.00 25.0V 01

UR848100

C157 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C158 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C159 Electrolytic Cap. 100.00 25.0V 01

UR848100

C161 Electrolytic Cap.(chip) 0.1000 50V Z

UY065100

-163 Electrolytic Cap.(chip) 0.1000 50V Z

UY065100

C164 Electrolytic Cap. 3300 35.0V

V6196900

C166 Electrolytic Cap.(chip) 0.1000 50V Z

UY065100

C167 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C168 Electrolytic Cap. 100.00 16.0V 01

UR838100

C169 Electrolytic Cap. 1000 16.0V 01

UR839100

C170 Electrolytic Cap. 1000 16.0V 01

UR839100

C171 Electrolytic Cap. 470.00 35.0V 01

UR858470

-174 Electrolytic Cap. 470.00 50.0V 01

UR868470

C175 Electrolytic Cap.(chip) 0.1000 50V Z

UY065100

-178 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C179 Electrolytic Cap. 100.00 25.0V 01

UR848100

C180 Electrolytic Cap. 100.00 25.0V 01

UR848100

C181 Electrolytic Cap. 220.00 25.0V 01

UR848220

C182 Electrolytic Cap. 220.00 25.0V 01

UR848220

C191 Electrolytic Cap.(chip) 5P 50V C

UX060500

C192 Electrolytic Cap.(chip) 5P 50V C

UX060500

C193 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-196 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

C198 Electrolytic Cap. 1.00 50.0V 01

UR866100

C199 Electrolytic Cap. 1.00 50.0V 01

UR866100

CN1 Connector Base Post M2426XX 12P TE 01

VV067200

CN2 Connector Base Post M2426XX 11P TE 01

VV067100

CN3 Connector Base Post M2426XX 9P TE 01

VV066900

CN103 Connector Base Post M2426XX 6P TE 01

VV066600

D1 Diode 1SS355 TE-17 01

VT332900

D101 Diode 1SS355 TE-17 01

VT332900

-104 Diode 1SS355 TE-17 01

VT332900

D105 Diode 1SR154-400 01

VT532500

D106 Diode 1SS355 TE-17 01

VT332900

D107 Diode 1SR154-400 01

VT532500

-115 Diode 1SR154-400 01

VT532500

IC1 IC MSM27C802CZ-NRS 8M

XZ198B00

IC2 IC W24258S-70LE-EL10 256K 07

XV411A00

IC2 IC CY62256LL-70SNCT 256K 05

XW433A00

IC3 IC W24258S-70LE-EL10 256K 07

XV411A00

IC3 IC CY62256LL-70SNCT 256K 05

XW433A00

IC4 IC MB3790PF ASSP ASSP 05

XR967A00

IC5 IC 74AHC32DT OR

XZ103A00

IC6 IC 74AHC32DT OR

XZ103A00

IC7 IC 74HC08DT AND

XZ108A00

IC8 IC YSS910-S DSP6 10

XV988A00

IC9 IC YSS910-S DSP6 10

XV988A00

IC10 IC MSM514260C-60JS 4M 07

XV077A00

: New Parts

RANK: Japan only

RANK

5

DG-Stomp

REF NO. PART NO. DESCRIPTION REMARKS QTY

IC10 IC SDM4260CLU-6S 4M 08

XV839A00

IC11 IC MSM514260C-60JS 4M 07

XV077A00

IC11 IC SDM4260CLU-6S 4M 08

XV839A00

IC12 IC HD6413002FP16 CPU 9

XQ375A00

IC13 Photo Coupler PC410T 04

VN686000

IC13 Photo Coupler HCPL-M600 04

VR903700

IC14 IC 74HC244DT BUS BUFFER

*
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*

*

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*

*
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*

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XZ109A00

IC15 IC 74HC244DT BUS BUFFER

XZ109A00

IC16 IC 74HC244DT BUS BUFFER

XZ109A00

IC17 IC YM3437C-F DIT2 07

XM530A00

IC18 IC UPC29M33T-E1 3.3V REGULATOR 03

XU965A00

IC101 IC NJM072M OP AMP 03

XC458A00

IC102 IC NJM5532M OP AMP 03

XC011A00

IC103 IC NJM5532M OP AMP 03

XC011A00

IC104 IC AK4520A-VF-E2 ADC&DAC 07

XT802A00

IC105 IC NJM4556AMT1 OP AMP 03

XQ138A00

IC106 IC NJM5532M OP AMP 03

XC011A00

IC107 IC 74HCU04DT INVERTER

XZ110A00

IC108 IC TC74HC4040F B. COUNTER 03

XR684A00

IC109 IC 74HC164DT SHIFT REGISTANT

XZ112A00

IC110 IC 74HC175DT D-FF

XZ113A00

IC111 IC NJM78M05DLA 5V REGULATOR

XZ162A00

IC112 IC NJM7805FA 5V REGULATOR 02

XJ607A00

IC113 IC NJM7815FA REGULATOR 03

XD853A00

IC114 IC NJM7915FA REGULATOR 03

XD854A00

JK1 DIN Connector 5P3 HDC-052A

V6177500

JK2 Pin Connector HSP-241V1B

V6178000

JK3 Phone Jack HTJ-064-12D

V6177700

JK101 Phone Jack HTJ-064-12I

V3633400

JK102 Phone Jack HTJ-064-12D

V6177700

JK103 Phone Jack HTJ-064-12I

V3633400

JK104 Phone Jack HTJ-064-12I

V3633400

JK105 Connector HTJ-020-05A

V6177200

J1 Jumper Wire 0.55 (VA07890)

-3 Jumper Wire 0.55 (VA07890)

J101 Jumper Wire 0.55 (VA07890)

-108 Jumper Wire 0.55 (VA07890)
K1 Style Pin IMSA-6024 01

K101 Terminal Plate 01

L1 Chip Inductance BLM21B751S 2125 03

-6 Chip Inductance BLM21B751S 2125 03
L7 Pulse T ransf ormer TC-1019-06 7MM 04
L8 Noise Filter ZJYS51R5-2PT

L101 LC Filter PLT2003C 04

RA1 Resistor Array 10KX4

-18 Resistor Array 10KX4
R1 Carbon Resistor (chip) 10K 0.1 J
R2 Carbon Resistor (chip) 100 0.1 J

-8 Carbon Resistor (chip) 100 0.1 J

R9 Carbon Resistor (chip) 270 0.1 J

R10 Carbon Resistor (chip) 10K 0.1 J
R11 Carbon Resistor (chip) 10K 0.1 J
R12 Carbon Resistor (chip) 1.0K 0.1 J
R13 Carbon Resistor (chip) 220 0.1 J
R14 Carbon Resistor (chip) 10K 0.1 J

-16 Carbon Resistor (chip) 10K 0.1 J

R17 Carbon Resistor (chip) 2.2K 0.1 J
R18 Carbon Resistor (chip) 220 0.1 J
R19 Carbon Resistor (chip) 220 0.1 J
R20 Carbon Resistor (chip) 1.0K 0.1 J
R21 Carbon Resistor (chip) 1.0K 0.1 J
R22 Carbon Resistor (chip) 1.0M 0.1 J
R23 Carbon Resistor (chip) 47 0.1 J
R24 Carbon Resistor (chip) 75 0.1 J
R26 Carbon Resistor (chip) 10K 0.1 J

R27 Carbon Resistor (chip) 0 0.1 J
R101 Carbon Resistor (chip) 10K 0.1 J
R102 Carbon Resistor (chip) 1.0M 0.1 J
R103 Carbon Resistor (chip) 4.7K 0.1 J
R104 Carbon Resistor (chip) 4.7K 0.1 J

: New Parts

--

--

--

-­VB966900
VV075700
VS740100
VS740100
VC548200
V6178900
VG238200
RH047100
RH047100
RG007100
RG005100
RG005100
RG005270
RG007100
RG007100
RG006100
RG005220
RG007100
RG007100
RG006220
RG005220
RG005220
RG006100
RG006100
RG009100
RG004470
RG004750
RG007100
RG000000
RG007100
RG009100
RG006470
RG006470

RANK: Japan only

RANK

6

DG-Stomp

REF NO. PART NO. DESCRIPTION REMARKS QTY

R105 Carbon Resistor (chip) 22K 0.1 J

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*
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*
*
*
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*
*
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*
*
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*
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*
*
*
*
*
*
*
*
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*
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*
*
*
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*
*
*
*
*
*
*
*
*
*
*
*
*

*

RG007220

R106 Carbon Resistor (chip) 12K 0.1 J

RG007120

R108 Carbon Resistor (chip) 10K 0.1 F

RG107100

R109 Carbon Resistor (chip) 22K 0.1 F

RG107220

R110 Carbon Resistor (chip) 3.3K 0.1 F

RG106330

R111 Carbon Resistor (chip) 10K 0.1 J

RG007100

R112 Carbon Resistor (chip) 10K 0.1 J

RG007100

R113 Carbon Resistor (chip) 5.6K 0.1 J

RG006560

R114 Carbon Resistor (chip) 5.6K 0.1 J

RG006560

R115 Carbon Resistor (chip) 470 0.1 J

RG005470

R116 Carbon Resistor (chip) 470 0.1 J

RG005470

R117 Carbon Resistor (chip) 10K 0.1 F

RG107100

R118 Carbon Resistor (chip) 470 0.1 F

RG105470

R119 Carbon Resistor (chip) 2.7K 0.1 F

RG106270

R120 Carbon Resistor (chip) 5.6K 0.1 J

RG006560

R121 Carbon Resistor (chip) 5.6K 0.1 J

RG006560

R122 Carbon Resistor (chip) 470 0.1 J

RG005470

R123 Carbon Resistor (chip) 470 0.1 J

RG005470

R124 Carbon Resistor (chip) 4.7K 0.1 J

RG006470

R125 Carbon Resistor (chip) 33 0.1 J

RG004330

R126 Carbon Resistor (chip) 4.7K 0.1 J

RG006470

R127 Carbon Resistor (chip) 4.7 1/4 J

RG203470

R128 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R129 Carbon Resistor (chip) 10K 0.1 J

RG007100

R130 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R131 Carbon Resistor (chip) 10K 0.1 J

RG007100

R132 Carbon Resistor (chip) 100K 0.1 J

RG008100

R133 Carbon Resistor (chip) 10K 0.1 J

RG007100

R134 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R135 Carbon Resistor (chip) 47 1/4 J

RG204470

R136 Carbon Resistor (chip) 10K 0.1 J

RG007100

R137 Carbon Resistor (chip) 100K 0.1 J

RG008100

R138 Carbon Resistor (chip) 100K 0.1 J

RG008100

R139 Carbon Resistor (chip) 10K 0.1 J

RG007100

R140 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R141 Carbon Resistor (chip) 47 1/4 J

RG204470

R142 Carbon Resistor (chip) 10K 0.1 J

RG007100

R143 Carbon Resistor (chip) 100K 0.1 J

RG008100

R144 Carbon Resistor (chip) 10K 0.1 J

RG007100

R145 Carbon Resistor (chip) 2.2K 0.1 J

RG006220

R146 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R147 Carbon Resistor (chip) 10K 0.1 J

RG007100

R148 Carbon Resistor (chip) 100K 0.1 J

RG008100

R149 Carbon Resistor (chip) 10K 0.1 J

RG007100

R150 Carbon Resistor (chip) 2.2K 0.1 J

RG006220

R151 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R152 Carbon Resistor (chip) 10K 0.1 J

RG007100

R153 Carbon Resistor (chip) 100K 0.1 J

RG008100

R154 Carbon Resistor (chip) 10K 0.1 J

RG007100

R155 Carbon Resistor (chip) 100K 0.1 J

RG008100

R156 Carbon Resistor (chip) 22K 0.1 J

RG007220

R157 Carbon Resistor (chip) 100K 0.1 J

RG008100

R158 Carbon Resistor (chip) 2.2K 0.1 J

RG006220

R159 Carbon Resistor (chip) 100K 0.1 J

RG008100

R160 Carbon Resistor (chip) 100K 0.1 J

RG008100

R161 Carbon Resistor (chip) 4.7K 0.1 J

RG006470

R162 Carbon Resistor (chip) 4.7K 0.1 J

RG006470

R163 Carbon Resistor (chip) 1.0M 0.1 J

RG009100

R164 Carbon Resistor (chip) 680 0.1 J

RG005680

R165 Carbon Resistor (chip) 220 0.1 J

RG005220

R166 Carbon Resistor (chip) 100 1/4 J

RG205100

R167 Carbon Resistor (chip) 100 1/4 J

RG205100

SW101 Push Switch SPPJ22SE01 02

V3633600

SW102 Push Switch SDKLA10200

V4577800

TR1 Transistor 2SC2412K Q,R,S 01

VV556400

TR2 Transistor 2SC2412K Q,R,S 01

VV556400

TR101 Transistor 2SC3326 A,B TE85R 01

VD303700

-106 Transistor 2SC3326 A,B TE85R 01

VD303700

TR107 Transistor 2SC2412K Q,R,S 01

VV556400

TR108 Transistor 2SA1162 O,Y 01

VJ927200

: New Parts

RANK: Japan only

RANK

7

DG-Stomp

REF NO. PART NO. DESCRIPTION REMARKS QTY

X1 Quartz Crystal Unit 30.00M HZ DOC-49S2 06

VU682100

X2 Quartz Crystal Unit AT-49/12.0000MHZ 03

VE463500

X101 Quartz Crystal Unit 24.576M AF3817CQA 03

*
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*
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*

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*
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VN277000

ZD101 Zener Diode UDZ 2.0BTE-17 2.0V

VU170900

ZD102 Zener Diode UDZ 2.0BTE-17 2.0V

VU170900

ZD103 Zener Diode UDZ 15B TE-17 15V

VU173000

ZD104 Zener Diode UDZ 15B TE-17 15V

VU173000

Circuit Board PN (V587990)

-­V6220800
V6624600

V6124500

C301 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

-315 Electrolytic Cap.(chip) 0.1000 25V Z

UX145100

CN301 Connector Base Post M2426XXR 6P SE 01

VV068000

CN302 Connector Base Post M2426XXR 9P SE 01

VV068300

CN303 Connector Base Post M2426XXR 11P SE

VV068500

CN304 Connector Base Post M2426XXR 12P SE 01

VV068600

CN305 Connector Base Post M2426XXR 14P SE 01

VV068800

CN306 Connector Base Post M2426XX 14P TE

VV067400

CN307 Connector Base Post M2426XX 2P TE 01

VV066200

CN308 Connector Base Post M2426XX 2P TE 01

VV066200

-310 Connector Base Post M2426XX 2P TE 01

VV066200

D301 Diode 1SS355 TE-17 01

VT332900

-321 Diode 1SS355 TE-17 01

VT332900

IC301 IC 74HC374DT D-FF

XZ102A00

-307 IC 74HC374DT D-FF

XZ102A00

IC308 IC 74HC4052DT MUL TIPLEXER

XZ101A00

IC309 IC 74HC4052DT MUL TIPLEXER

XZ101A00

K301 Style Pin IMSA-6024 01

VB966900

LD301 LED Display LTC-5836E

V5801000

LD302 LED Red LT311G-41-C13 01

VV620800

-304 LED Red LT311G-41-C13 01

VV620800

LD306 LED Red LT311G-41-C13 01

VV620800

L301 Chip Inductance BLM21B751S 2125 03

VS740100

-312 Chip Inductance BLM21B751S 2125 03

VS740100

R301 Carbon Resistor (chip) 10K 0.1 J

RG007100

-304 Carbon Resistor (chip) 10K 0.1 J

RG007100

R305 Carbon Resistor (chip) 560 0.1 J

RG005560

-321 Carbon Resistor (chip) 560 0.1 J

RG005560

R322 Carbon Resistor (chip) 820 0.1 J

RG005820

-345 Carbon Resistor (chip) 820 0.1 J

RG005820

R346 Carbon Resistor (chip) 10K 0.1 J

RG007100

-360 Carbon Resistor (chip) 10K 0.1 J

RG007100

R361 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

-367 Carbon Resistor (chip) 1.0K 0.1 J

RG006100

R368 Carbon Resistor (chip) 10K 0.1 J

RG007100

R369 Carbon Resistor (chip) 10K 0.1 J

RG007100

R370 Carbon Resistor (chip) 560 0.1 J

RG005560

-374 Carbon Resistor (chip) 560 0.1 J

RG005560

R376 Carbon Resistor (chip) 0 0.1 J

RG000000

SW301 Push Switch SKHQFN GREEN 02

VK701100

-317 Push Switch SKHQFN GREEN 02

VK701100

SW318 Rotary Switch SRBV18 1C-8S 07

V3633800

VR301 Rotary Variab le Resistor RK09L1140 10KB

V5264800

-313 Rotary Variable Resistor RK09L1140 10KB

V5264800

VR314 Rotary Variable Resistor RK09L12D0 20KA X2

V5265100

Spacer 8
LED Holder LED3-1A 4
Wire Assembly C& #24 2P L60 (V654510) 4

--

Push Switch ADS-003-A10 4

RANK

8

: New Parts

RANK: Japan only

123456789101112

A

B

DG-Stomp OVERALL CIRCUIT DIAGRAM 1/2(DM

DM

256K RAM 256K RAM

8M ROM

)

DG-Stomp

A

PHOTO COUPLER

ASSP

B

Socket to CR2450

AND

C

D

E

OR

AND

OR OR OR

OR OR

OR

CPU

C

to PN-CN304

BUFFER

D

BUFFER

to PN-CN303to PN-CN302

E

BUFFER

F

G

H

DSP6

4M ROM

R27 R28

F/P

ED0

: installed
: not installed

REGULATOR 3.3V

DSP6

INVERTER

DIGITAL OUT

COAXIAL

F

G

H

4M ROM

DIT2

I

I

OPAMP

J

OPAMP

J

ADC&DAC

to PN-CN301

K

OPAMP

OPAMP OPAMP

K

OPAMP

OPAMPOPAMP

L

INVERTER

OPAMP

L

M

N

O

AC 12V

REGULATOR 5V

B.COUNTER

SHIFT
REGISTANT

ANDINVERTER

REGULATOR 5V

REGULATOR +15V

D-FF

UPC29M33T-E1(XU965A00

DM: IC18

REGULATOR +3.3V

2

1

3

NJM7815FA(XD853A00

DM: IC113

REGULATOR +15V

1: V IN
2: GND
3: OUTPUT

)

NJM78M05DLA

)

DM: IC111

REGULATOR +5V

1

NJM7915FA(XD854A00

DM: IC114

REGULATOR -15V

(

3

KEC-54202

2

1: INPUT
2: GND
3: OUTPUT

)

)

XZ162A00

1

NJM7805FA(XJ607A00

DM: IC112

REGULATOR +5V

1

2

3

)

1: INPUT
2: GND
3: OUTPUT

M

N

O

P

Q

3

2

1

1: OUTPUT
2: COMMON
3: INPUT

P

REGULATOR -15V

1

2

3

1: INPUT
2: GND
3: OUTPUT

: Ceramic Capacitor

Note : See parts list for details of circuit board component parts.

DG-StompDG-Stomp

Q

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A

B

DG-Stomp OVERALL CIRCUIT DIAGRAM 2/2(PN 1/2,PN 2/2

PN

UP

STORE

1/2

DOWN

COMP

MANUAL

CHORUS

UTILITY

D-FF

FLANGER

)

DG-Stomp

A

B

D-FF

C

D

E

PHASER

SP. SIM TAPE ECHO

ROTARY

SPRING

TREMOLO

HALL

C

D-FF

D-FF

DELAY

D

PLATE

D-FF

D-FF

OUTPUT

to DM-CN103

E

F

G

D-FF

1 2 3 BANK

PN

to DM-CN1 to DM-CN2

AMP SELECT

2/2

F

REVERBLEVELFEEDBACKTIMEDEPTHSPEEDCOMPPRESENCEBASSMIDDLETREBLEMASTERGAIN

G

H

FOOT SW1 FOOT SW2 FOOT SW3 FOOT SW BANK

MULTIPLEXER

K301

H

MULTIPLEXER

KEC-54201

KEC-54201

to DM-CN3

I

1

I

K

J

J

K

L

L

M

N

O

M

N

O

P

Q

P

DG-Stomp DG-Stomp

Q

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