PDF User Manual

SERVICE NOTES

Third Edition

 

Issued by RJA

 

Copyright © 2002 ROLAND CORPORATION

 

All rights reserved. No part of this publication may be reproduced in any form without the written permission 
of ROLAND CORPORATION.

 

Printed in Japan 

 

(0800)

 

 (AS)

17059557E3

 

May 2002

DD-3(T)

 

SPECIFICATIONS............................................................. 2
LOCATION OF CONTROLS,PARTS LIST ................... 3
EXPLODED VIEW,PARTS LIST ..................................... 4
PARTS LIST........................................................................ 5
ADJUSTMENTS ................................................................ 8
CIRCUIT BOARD.............................................................. 9
CIRCUIT DIAGRAM...................................................... 10

 

WARNING

 

There are three types of DD-3(T) with different circuitry called “DD-3”, “DD-
3A” and “DD-3B”.  The pedals of all three types are labeled “DD-3”.

We call the new type of this model, DD-3B for identifying the old type and 
new type for convenience on service system.

Check the model name as follows.

Of the three types, only the appearance of the “DD-3” is different. Identify the 
“DD-3” or the “DD-3A or DD-3B” by the shape of the adapter jack as shown in 
the following figure.

The appearance of the “DD-3A” and the “DD-3B” are the same. Due to a 
DRAM change, it has been changed to “DD-3B” from serial No. SO91200 of 
1912LOT (produced in August 2001). It can be identified by the serial number. 
The “DD-3A” and “DD-3B” can also be identified by the silk-screen printing 
on the board.

When referring to the service notes or ordering parts, check the model name 
using the above process.

This service note is for the “DD-3B”. Refer to “DD-3A SERVICE NOTES” 
(#17059557) when repairing the DD-3A. Variable resistor, switch and 
mechanical parts for the “DD-3A” and “DD-3B” are compatible. Refer to “DD-
2/3 SERVICE NOTES” (#17059183) when repairing the DD-3.

 

fig.notice

DD-3A or DD-3B

DD-3

 

 

2

May 2002

 

SPECIFICATIONS

 

Power Supply    

 

DC 9 V; Dry battery (6AM6/9V)

AC Adaptor (PSA-series: Option)

 

Current Draw    

 

45 mA to 65 mA (DC 9V)

 

Controls        

 

Pedal Switch

EFFECT LEVEL

FEEDBACK

DELAY TIME

MODE SELECTOR Switch

 

Indicator       

 

Check Indicator (serves also as battery check indicator)

 

Jacks   

 

INPUT

DIRECT OUTPUT

MAIN OUTPUT

AC Adaptor

 

System  

 

Analog logalithmic compression and 12 bit quantizing system

 

Delay Time      

 

12.5 ms (MIN) to 800 ms (MAX)

        S (Short)        50 ms (12.5 ms to 50 ms)

        M (Middle)  200 ms (50 ms to 200 ms)

        L (Long) 

800 ms (200 ms to 800 ms)

 

Hold Time       

 

200 ms (MIN) to 800 ms (MAX) in Hold mode

 

Frequency Response      

 

Delay Sound:    40 Hz to 7 kHz; +1/-3 dB

Direct Sound:   10 Hz to 60 kHz; +1/-3 dB

 

Residual Noise  

 

-95 dBu (IHF-A, Typ.)

 

Input Impedance 

 

1 M ohm

 

Output Load Impedance   

 

10 k ohm or greater

 

Dimensions      

 

73 (W) x 129 (D) x 59 (H) mm

2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches

 

Weight  

 

450 g / 1 lb (including battery)

 

Accessories     

 

OWNER’S MANUAL

ENGLISH(#2603768702)

JAPANESE(#2603768603)

Dry Battery(#********); 6AM6/9V (Alkaline)

Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and 
“Information”)

 

Options 

 

AC Adaptor PSA-Series

 

*

0 dBu = 0.775 Vrms

 

 

3

DD-3(T)

 

LOCATION OF CONTROLS,PARTS LIST

 

fig.panel

 

No.

PART CODE

PART NAME

DESCRIPTION

1

2253753801

PSA CAUTION

253-538

2

2221740401

PANEL

3

22017993RT

CASE

4

2247726200

KNOB (BLUE)

247-262

13279869

POTENTIOMETER

RKO971110 50KB

5

13449105MF

JACK

HTJ-064-14I

6

2235730400

FOOT BASE (PEDAL MAT)

235-304

7

2202785100

BOTTOM COVER

202-851

8

2235730500

BOTTOM BASE

235-305

9

G253751603

BOTTOM CAUTION PSA

FCC/CE/C-TICK/EMC GRY

10

13449711

AC ADAPTOR JACK

HEC-0470-01-630

11

1502928100

LED (RED)

L-34HDSL

12

2247726200

KNOB (BLUE)

247-262

13119308

SWITCH (ROTARY)

SBM1024     (SRBM 14011A)

13

2247726200

KNOB (BLUE)

247-262

13289126

POTENTIOMETER

RK0971110 10KA 15MM

14

F3449112

JACK (STEREO)

HTJ-064-13D

15

13449140MF

JACK (STEREO)

HTJ-064-14D

16

22187547RT

PEDAL

 

 

4

May 2002

 

EXPLODED VIEW,PARTS LIST

 

fig.explo

 

[PARTS]

[SCREW]

 

No.

PART CODE

PART NAME

DESCRIPTION

Q’TY

1

13129710

SWITCH (PUSH)

JM-0404

1

2

2226733300

CUSHION

267-333

1

3

F3419102

BATTERY CONNECTOR

1

4

G253751603

BOTTOM CAUTION PSA

FCC/CE/C-TICK/EMC GRY

1

5

2235730500

BOTTOM BASE

235-305

1

6

2202785100

BOTTOM COVER

202-851

1

7

G2167301

INSULATION SPACER

1

8

2215770201

PEDAL GUIDE BUSH

215-702

1

9

2217710900

COIL SPRING

214-109

1

10

2235730400

FOOT BASE (PEDAL MAT)

235-304

1

No.

PART CODE

PART NAME

DESCRIPTION

Q’TY

a

40125134

NYLON WASHER 3X6X0.5

2

b

40010267

SCREW M3X10

BINDING FE BZC

2

c

40010901

SCREW M3X6

BINDING B1 BZC

4

d

H5029820

SCREW M3X10

THUMB SCREW

1

1

1

2

3

4

a

5

6

7

8

9

d

10

b

c

 

 

5

DD-3(T)

 

PARTS LIST

 

fig.part1e

 

CASING

 

 

 

 

2235730500

BOTTOM BASE

235-305

 

1

 

 

 

2235730400

FOOT BASE (PEDAL MAT)

235-304

 

1

 

 

 

2202785100

BOTTOM COVER

202-851

 

1

#

 

 

22017993RT

CASE

 

 

1

#

 

 

2221740401

PANEL

 

 

1

#

 

 

22187547RT

PEDAL

 

 

1

 

KNOB,BUTTON

 

 

 

 

2247726200

KNOB (BLUE)

247-262

 

4

 

SWITCH

 

 

 

 

13119308

SBM1024     (SRBM 14011A)

SWITCH (ROTARY)

SW1

1

 

 

 

13129710

JM-0404

SWITCH (PUSH)

SW2

1

 

JACK,EXT TERMINAL

 

 

 

 

F3449112

HTJ-064-13D

JACK (STEREO)

JK1

1

 

 

 

13449140MF

HTJ-064-14D

JACK (STEREO)

JK2

1

 

 

 

13449105MF

HTJ-064-14I

JACK

JK3

1

 

 

 

13449711

HEC-0470-01-630

AC ADAPTOR JACK

JK4

1

 

PWB ASSY

 

#

 

 

75D563P000

MT BOARD ASSY

DD-3B

 

1

 

IC

 

 

 

 

15289402

TA78L05F(TE12L)

IC (REGULATOR)

IC9

1

 

 

 

15289148

M5218AFP

IC (OP AMP)

IC1

1

 

 

 

15229875

MN51010RBA BOS-008

IC (GATE ARREY)

IC7

1

 

 

 

02343090

M11B416256A-35J(T)

IC (DRAM)

IC11

1

 

 

 

15289118

NJM311M

IC (COMPARATOR)

IC5

1

#

 

 

F5289115

NJM319M

IC (COMPARATOR)

IC10

1

#

 

 

F5289113

SA571D

IC (COMPANDOR)

IC2

1

 

 

 

15159115T1

TC4066BP

IC (C MOS)

IC3

1

 

 

 

15249114T0

TC74HC00AF  SOP

IC

IC4

1

 

 

 

15289155

UPC4072G2

IC

IC8

1

 

TRANSISTOR

 

 

 

 

15319108

2SC-3324GR-TE85R

TRANSISTOR

Q1,Q3-Q5,Q7-Q9

7

 

 

 

F5329530

2SK879Y

FET TRANSISTOR

Q2,Q10

2

 

 

 

15329103T0

2SK880-GR(TE85R)

FET TRANSISTOR

Q6,Q11

2

 

DIODE

 

 

 

 

01019534

1SS355 TE-17

SWITCHING DIODE

D1-D8

8

 

 

 

1502928100

L-34HDSL

LED (RED)

LED1

1

 

 

 

F5339201

GS1G

DIODE

D9

1

 

 

 

F5339312

RD5.6S B3

DIODE

D10

1

 

RESISTOR

 

 

 

 

F5419705

CRN34103J

RESISTOR ARRAY

RA2-RA4

3

 

 

 

13919175

RKM14L472/942F

RESISTOR ARRAY

RA1

1

 

 

 

00567023

RPC05T 101 J

MTL.FILM RESISTOR

R24

1

 

 

 

00567156

RPC05T 102 J

MTL.FILM RESISTOR

R2,R26,R43

3

 

 

 

00567289

RPC05T 103 J

MTL.FILM RESISTOR

R3,R5,R10,R18-R22,R27,R36-
R40,R42,R44,R45,R4

26

 

 

 

00567412

RPC05T 104 J

MTL.FILM RESISTOR

R1,R7,R23,R25,R47

5

 

 

 

00567556

RPC05T 105 J

MTL.FILM RESISTOR

R6,R60,R61

3

 

 

 

00567045

RPC05T 151 J

MTL.FILM RESISTOR

R30

1

SAFETY PRECAUTIONS:

The parts marked 

 

have

 

safety-related characteristics. Use

 

only listed parts for replacement.

CONSIDERATION ON PARTS ORDRING

When ordering any parts listed in the parts list, please specify the following items in the order sheet.

QTY

PART NUMBER

DESCRIPTION

MODEL NUMBER

Ex.

10

22575241

Sharp Key

C-20/50

15

2247017300

Knob (orange)

DAC-15D

Failure to completely fill the above items with correct number and description will result in delayed or even 
undelivered replacement.

NOTE: The parts marked # are new. (initial parts)

 

 

6

May 2002

 

 

 

 

00567178

RPC05T 152 J

MTL.FILM RESISTOR

R34

1

 

 

 

00566912

RPC05T 220 J

MTL.FILM RESISTOR

R70

1

 

 

 

00567067

RPC05T 221 J

MTL.FILM RESISTOR

R31

1

 

 

 

00567190

RPC05T 222 J

MTL.FILM RESISTOR

R17,R32,R35,R69

4

 

 

 

00567323

RPC05T 223 J

MTL.FILM RESISTOR

R12,R46,R48,R53,R57

5

 

 

 

00567456

RPC05T 224 J

MTL.FILM RESISTOR

R58,R62

2

 

 

 

00567212

RPC05T 332 J

MTL.FILM RESISTOR

R41

1

 

 

 

00567345

RPC05T 333 J

MTL.FILM RESISTOR

R9,R13,R14,R67,R68,R71

6

 

 

 

00567112

RPC05T 471 J

MTL.FILM RESISTOR

R29

1

 

 

 

00567245

RPC05T 472 J

MTL.FILM RESISTOR

R16

1

 

 

 

00567378

RPC05T 473 J

MTL.FILM RESISTOR

R4,R8,R11,R15,R33,R50,R56

7

 

 

 

00567123

RPC05T 561 J

MTL.FILM RESISTOR

R66

1

 

POTENTIOMETER

 

#

 

 

F5429102

RH03ADC13X 1KB

TRIMMER

RT1

1

#

 

 

F5429103

RH03ADCS4X 47KB

TRIMMER

RT2

1

 

 

 

13289126

RK0971110 10KA 15MM

POTENTIOMETER

VR3

1

 

 

 

13279869

RKO971110 50KB

POTENTIOMETER

VR1,VR2

2

 

CAPACITOR

 

#

 

 

F5359811

GRM39B183K50PT

CHIP CAPACITOR(1608TYPE)

C39

1

 

 

 

13639546M0

ECEA1CKA100B 10UF/16V

CHEMICAL CAPACITOR

C3,C10,C36-C38

5

 

 

 

13639550M0

ECEA1CKA101B 100UF/16V

CHEMICAL CAPACITOR

C1

1

 

 

 

13639549M0

ECEA1CKA470B

CHEMICAL CAPACITOR

C11,C24,C27,C46,C56

5

 

 

 

13639602M0

ECEA1HKA010B UF 50V

CHEMICAL CAPACITOR

C43,C45,C49-C51

5

 

 

 

13589330M0

ECQ-P1H151JZ

CHEMICAL CAPACITOR

C23

1

 

 

 

13589319

ECQP2H471JZ

CHEMICAL CAPACITOR

C33

1

 

 

 

01674701

ECJ1VF1E104Z 0.1UF/16VK

CERAMIC CAPACITOR(CHIP)

C25,C26,C28,C29,C52-C55

8

 

 

 

01674612

ECJ1VB1H103K

CERAMIC CAPACITOR

C18

1

 

 

 

01674478

ECJ1VB1H122K

CERAMIC CAPACITOR

C15

1

 

 

 

01674523

ECJ1VB1H272K

CERAMIC CAPACITOR

C9,C16,C30,C40,C44

5

 

 

 

01674556

ECJ1VB1H472K

CERAMIC CAPACITOR

C2,C6,C31

3

 

 

 

01674578

ECJ1VB1H682K

CERAMIC CAPACITOR

C12,C32

2

 

 

 

01674689

ECJ1VF1H473Z

CERAMIC CAPACITOR

C5,C47,C48

3

 

 

 

01674334

ECUV1H101JCV

CERAMIC CAPACITOR

C7,C42

2

 

 

 

01674356

ECUV1H151JCV

CERAMIC CAPACITOR

C13

1

 

 

 

01674212

ECUV1H220JCV

CERAMIC CAPACITOR

C22

1

 

 

 

01674389

ECUV1H221JCV

CERAMIC CAPACITOR

C41

1

 

 

 

01674234

ECUV1H330JCV

CERAMIC CAPACITOR

C4,C8

2

 

 

 

01674423

ECUV1H471JCV

CERAMIC CAPACITOR

C35

1

 

 

 

01674445

ECUV1H681JCV

CERAMIC CAPACITOR

C20

1

 

 

 

13619706N0

DN1VR68KIS 0.68UF/35V

CAPACITOR (TANTALUM)

C14,C34

2

 

 

 

13589312

330P

CAPACITOR

C17

1

 

INDUCTOR,COIL,FILTER

 

 

 

 

13529145

DSS306-55FZ103N

EMI FILTER

EMI1

1

 

WIRING,CABLE

 

#

 

 

23477336

FLAT CABLE

4P-80X10X10 P=2.5

 

1

#

 

 

23477337

FLAT CABLE

3P-160X10X10 P=2.5

 

1

#

 

 

G3477157

FLAT CABLE

3P-130X10X10 P=2.5

 

1

 

SCREWS

 

 

 

 

H5029820

SCREW M3X10

THUMB SCREW

 

1

 

 

 

H5029325

SCREW 3X6

PAN HEAD TAPTITE-2 BZC

 

4

 

 

 

H5039205

WASHER 12.5X9.5X0.5/0.9

INTERNAL TOOTH FENI

 

3

 

 

 

H5039510

NUT M9X12X2

FENI

 

3

 

 

 

H5029317UC

SCREW 3X6MM

BINDING TAPPING B1 FECM

 

1

 

 

 

H501941301

SCREW 3X10MM

BINDING MACHINE FEBC

 

2

 

 

 

40125134

NYLON WASHER 3X6X0.5

 

 

2

 

 

 

H5039112

WASHER M9

 

 

3

40010267

SCREW M3X10

BINDING FE BZC

2

40010901

SCREW M3X6

BINDING BI BZC

4

 

PACKING

 

 

 

 

G2627738

INNER BOX

 

 

1

#

 

 

2260714803

PACKING CASE

 

 

1

 

MISCELLANEOUS

 

 

 

 

G253751603

BOTTOM CAUTION PSA

FCC/CE/C-TICK/EMC GRY

 

1

 

 

 

H5319102

INSULOK TIE

80M/M T-18S

 

1

 

 

 

2226733300

CUSHION

267-333

 

1

 

 

 

2253753801

PSA CAUTION

253-538

 

1

 

 

 

2215770201

PEDAL GUIDE BUSH

215-702

 

1

 

RESISTOR

 

 

7

DD-3(T)

 

 

 

 

2217710900

COIL SPRING

214-109

 

1

 

 

 

23410414

BATTERY CONNECTOR

(006P)

 

1

 

 

 

22257257

EARTH TERMINAL

 

 

2

 

 

 

G2167301

INSULATION SPACER

 

 

1

 

 

 

H2369402

POLYCA PIPE M3X6X6

 

 

1

 

ACCESSORIES (Standard)

 

#

 

 

2603768603

OWNER’S MANUAL

JAPANESE

 

1

#

 

 

2603768702

OWNER’S MANUAL

ENGLISH

 

1

#

 

 

********

DRY BATTRY 

 

 

1

 

MISCELLANEOUS

 

 

8

May 2002

 

ADJUSTMENTS

 

*

Adjusting the clock frequency for delay time.

 

1.

 

Adjusting the high end of clock frequency (Adjusting the minimum delay time)

a. Set the VR3(D.TIME knob) to the min (fully-ccw).

b. Connect the oscilloscope to R26(1k ohm resister) or pin 5 (or pin 6) of IC3 (HD14066BP).

c. Adjust RT1 (1kB potentiometer) on MT BOARD for T=12.5±0.5uS(Fig.1).

In some types of products, turning the RT1 continuously clockwise may once go outside the adjustable range and reenter there.

Therefore, at the start, turn the RT1 fully counter-clockwise, then slowly turn it clockwise.

When the adjustable range is reached, stop turning it, then begin adjustment.

 

2.

 

Adjusting the high end of clock frequency (Adjusting the minimum delay time)

a. Set the VR3(D.TIME knob) to the max(fully-ccw).

b. Connect the oscilloscope to R26(1k ohm resister) or pin 5 (or pin 6) of IC3 (HD14066BP).

c. Adjust RT2 (47kB potentiometer) on MT BOARD for T=50±2uS(Fig.2).

 

fig.1

fig.check3

22

21

23

5

3

4

2

1

67

8

9

14

15
16
17

13

11

12

25

10

18
19

20

IC3

R26

RT1

RT2

MAIN BOARD

View from part side

VR3(D.TIME)

 

 

9

DD-3(T)

 

CIRCUIT BOARD

 

fig.circit

fig.circit

View from component side

View from foil side

 

11

May 2002

DD-3(T)

CIRCUIT DIAGRAM

fig.circit

AC
ADAPTOR 

9V
Batte ry

INPUT

DIRECT

OUT

OUTPUT

LED BOARD

(PCB G

292719900 3/4)

CHECK

D.TIME

MODE

F.BACK E.LEVEL

VR BOARD
(PCB G2927199 00 2/4)

DQ2

17

11

13

15
16

12

14

8

7

6

9

20

19

18

10

25

2

22

21

23

3

1

5

4

SW BOARD
(PCB G2927199 00 4/4)

JM-0404

(PCB G2927199 00 1/4)

MAIN BOARD

RED

GRY

BRN

YEL
BLU

EARTH TERMINAL

EARTH TERMINAL

10

25

VIO

BLK

20

19

18

13
11

17

15
16

12

BRN

RED

ORG

9

6

7

8

14

YEL

45

GRN

ORG

WHT

A7
A6
A5
A4
A3
A2
A1
A0

DQ1

DQ2

DQ3

DQ4

A7
A6
A5
A4
A3
A2
A1
A0

DQ4
DQ3
DQ2
DQ1

+

+

A

9

+5

D

D

D

D

D

D

D

D

D

D

+

A

9

D

D

D

+5

D

D

D

+

A

9

+

A

9

+5

D

+5

D

+

A

9

+

A

9

+

A

9

+

A

9

+

A

9

+

A

9

+5

D

+

A

9

+

A

9

+

A

9

+

A

9

+

A

9

+

A

9

+5

D

+

+

+

+

+

D

+

A

9

D

D

+

A

9

+

A

9

+5

D

D

+

A

9

D

+5

D

D

+

A

9

D

D

D

D

D

D

+5

D

+5

D

D

D

D

R36
10k

R38
10k

R37
10k

C31
0.0047

C30
0.0027

R45
10k

R39
10k

R42
10k

C32
0.0068

C35
470p

R55
10k

R49
10k

R51
10k

C39
0.018

C41
220p

R4
47k

R3
10k

C2
0.0047

C4
33p

+

-

IC1B
M5218AFP

6

5

7

C3
10/16

R1
100k

LED1
L-34HDSL

1

2

C1
100/16

R63
10k

R59
10k

C46
47/16

R54
10k

C43
1/50

C6
0.0047

R11
47k

R10
10k

R14
33k

C8
33p

C47
0.047

R60
1M

R52
10k

R44
10k

R47
100k

C36
10/16

R43
1k

R7
100k

D9
GS1G

1

2

R62
220k

R58
220k

C45
1/50

R61
1M

C48

0.047

R8
47k

IC3A
HD14066BP

1

2

13

IC3D
HD14066BP

11

10

12

IC4A

TC74HC00AF

1

2

3

IC4B

TC74HC00AF

4

5

6

R13
33k

R6
1M

R9

33k

R24
100

R23
100k

1

2

IC4D

TC74HC00AF

12

13

11

C20
680p

R25
100k

R32

2.2k

C23
150pECQP

R40
10k

IC3B
HD14066BP

4

3

5

C33
470pECQP

R33
47k

IC3C
HD14066BP

8

9

6

C17
1000pECQP

R34
1.5k

R35
2.2k

IC9
TA78L05F

IN

3

OUT

1

COM

2

C28
0.1

C29
0.1

C27
47/16

IC3E
HD14066BP

14

7

EMI1
DSS306-55FZ103N

1

2

+

-

IC1A
M5218AFP

2

3

1

+

-

IC1C
M5218AFP

8

4

+

-

IC8B
uPC4072G2

6

5

7

R27
10k

C26
0.1

RH03ADC13X (1kB)

RT1

1

2

3

C25

0.1

IC2
SA571D

RECT CAP1

1

RECT IN1

2

AG CELL IN1

3

GND

4

INV. IN1

5

RES. R31

6

OUTPUT1

7

THD TRIM1

8

THD TRIM2

9

OUTPUT2

10

RES. R32

11

INV. IN2

12

VCC

13

AG CELL IN2

14

RECT IN2

15

RECT CAP2

16

C51

1/50

C49

1/50

C50

1/50

C38
10/16

C42
100p

R48
22k

C44
0.0027

C40
0.0027

R57
22k

R53
22k

R56

47k

R50

47k

R41
3.3k

R46
22k

C37
10/16

C34
0.68T

R21
10k

C16
0.0027

R20
10k

R19
10k

C13
150p

C15
0.0012

R16
4.7k

C14
0.68T

C7
100p

C9
0.0027

R15

47k

R12
22k

R17

2.2k

C11
47/16

C10

10/16

RH03ADCS4X (47kB)

RT2

1

2

3

VR2
RK0971110-50kB

1

2

3

VR1
RK0971110-50kB

1

2

3

VR3
RK0971110-10kA

1

2

3

SW1A

SRBM14011

12
13
14

11

15

SW1B

21
22
23

25

24

R65
10k

JK4
HEC0470-01-630

2
1
3

C22

22p

JK2
HTJ-064-14D

1

2
3

R64
10k

JK1
HTJ-064-13D

1

2
3

+

-

IC8C
uPC4072G2

8

4

IC10A
NJM319M

4

5

12

3

R68
33k

R69
2.2k

IC10B
NJM319M

9

10

7

8

IC10C
NJM319M

11

6

C52
0.1

+

-

IC8A
uPC4072G2

2

3

1

Q4
2SC3324GR

1

2

3

Q3
2SC3324GR

1

2

3

Q8
2SC3324GR

1

2

3

Q5
2SC3324GR

1

2

3

Q9
2SC3324GR

1

2

3

Q7
2SC3324GR

1

2

3

Q10
2SK879Y

3

1

2

Q6
2SK880GR

3

1

2

Q11
2SK880GR

3

1

2

Q1
2SC3324GR

1

2

3

D1
1SS355

1

2

R30

150

R31
220

D4
1SS355

1

2

D7
1SS355

1

2

+

-

IC5
NJM311M

3

2

7

1

8

4

6

5

D6
1SS355

1

2

D8
1SS355

1

2

IC4C

TC74HC00AF

9

10

8

C24

47/16

D5
1SS355

1

2

RA1
RKM14L472-942F

1

2

3

4

5

6

7

8

9

10

11

12

13

14

D3

1SS355

1

2

R26
1k

R67
33k

Q2
2SK879Y

3

1

2

C5
0.047

D2
1SS355

1

2

R5
10k

R22
10k

R18
10k

C12
0.0068

IC7

MN51010RBA

SERIALI

30

D11

45

D10

44

D9

43

D8

42

D7

41

D6

40

D5

39

D4

38

D3

37

D2

36

D1

35

D0

34

NORMSH

28

XI

84

VCOOUT

83

CVIN1

82

CVIN2

81

FETSW

25

MUTE

59

TIME4

63

TIME6

65

HOLD

26

EFSW

23

GND

31

TIME10

69

TIME11

70

GND

75

VDD

73

VDD

33

RESET

76

DQ4

7

DQ3

5

DQ2

10

DQ1

9

A7

17

A6

14

A5

15

A4

16

A3

18

A2

19

A1

20

A0

21

NRAS

12

CAS1

6

NWE

11

NOE

8

C56
47/16

R70
22

C55
0.1

R71
33k

R66
560

D10
RD5.6S B3

1

2

R2
1k

JK3
HTJ-064-14I

1

2
4

IC4E
TC74HC00AF

14

7

RA4
CRN34103J

1

8

2

7

3

6

4

5

R29 470

C54
0.1

C53
0.1

IC11
M11B416256A-35J

VCC

1

DQ1

2

DQ2

3

DQ3

4

DQ4

5

VCC

6

DQ5

7

DQ6

8

DQ7

9

DQ8

10

NC

11

NC

12

W E

13

RAS

14

NC

15

A0

16

A1

17

A2

18

A3

19

VCC

20

VSS

21

A4

22

A5

23

A6

24

A7

25

A8

26

OE

27

UCAS

28

LCAS

29

NC

30

DQ9

31

DQ10

32

DQ11

33

DQ12

34

VSS

35

DQ13

36

DQ14

37

DQ15

38

DQ16

39

VSS

40

C18
0.01

RA3
CRN34103J

1

8

2

7

3

6

4

5

RA2
CRN34103J

1

8

2

7

3

6

4

5