dd-20(t) degital delay - the synthesizer database · 2 mar.2003 specifications dd-20: digital delay...

SERVICE NOTES

Issued by RJA

Copyright © 2003 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) (NB)17058152E0

Mar.2003 DD-20(T)

TABLE OF CONTENTS

SPECIFICATIONS.............................................................2LOCATION OF CONTROLS ..........................................4LOCATION OF CONTROLS PARTS LIST ...................5EXPLODED VIEW ............................................................6EXPLODED VIEW PARTS LIST .....................................9PARTS LIST......................................................................10CHECKING THE VERSION NUMBER.......................14RESTORING THE FACTORY SETTINGS...................14

TEST MODE.....................................................................14BLOCK DIAGRAM.........................................................22CIRCUIT BOARD (JK-A) ...............................................24CIRCUIT BOARD (JK-B) ................................................25CIRCUIT BOARD (PANEL-A)......................................26CIRCUIT BOARD (PANEL-B).......................................27CIRCUIT DIAGRAM (JACK) ........................................28CIRCUIT DIAGRAM(PANEL)......................................30

Mar.2003

SPECIFICATIONS

DD-20: DIGITAL DELAY

Nominal Input Level• 20 dBu (GUITAR/BASS)

+4 dBu (AMPLIFIER SEND/RETURN)

Input Impedance1 M[ohm]

Nominal Output Level• 20 dBu (GUITAR/BASS)

+4 dBu (AMPLIFIER SEND/RETURN)

Output Impedance1 k[ohm] (OUTPUT A (MONO), B)

33 [ohm] (PHONES)

Recommended Load Impedance10 k[ohm]

Residual Noise Level• 93 dBu or less (IHF-A typ.)

* E. LEVEL/F. BACK/TONE knobs are set to the center position

DisplayCustom LCD (with backlit)

ControlsON/OFF Pedal

MEMORY/TAP Pedal

DELAY TIME Knob

E.LEVEL Knob

F. BACK Knob

TONE Knob

MODE Knob

TAP Button

TEMPO Button

MEMORY WRITE Button

MEMORY SELECT Button

IndicatorsPOWER Indicator

(serves also as battery check indicator)

ON/OFF Indicator

MEMORY Indicator

TAP Indicator

MANUAL Indicator

MEMORY Number Indicator 1-4

TEMPO Indicator

ConnectorsINPUT A (MONO) Jack (1/4 inch phone type)

INPUT B Jack (1/4 inch phone type)

PHONES Jack (stereo 1/4 inch phone type)

CTL PEDAL Jack (1/4 inch phone type)

OUTPUT A (MONO) Jack (1/4 inch phone type)

OUTPUT B Jack (1/4 inch phone type)

AC Adaptor Jack

Power SupplyDry battery (R6/LR6 (AA) type) x 6: DC 9V

AC Adaptor (DC 9V)

Current Draw200 mA (9 V max.)

* Expected battery life under continuous use:

Carbon: 2 hours

Alkaline: 7 hours

These figures will vary depending on the actual conditions of use.

Dimensions173 (W) x 158 (D) x 57 (H) mm

6-13/16 (W) x 6-1/4 (D) x 2-1/4 (H) inches

Weight1.2 kg / 2 lbs 11 oz (including batteries)

AccessoriesOwner’s Manual JAPANESE:(#G6017365)

ENGLISH:(#G6017366)

Dry battery (LR6 (AA) type) x 6(#********)

* We recommend that alkaline batteries be used when replacing the batteries.

OptionsAC Adaptor (PSA-series)

* 0 dBu = 0.775 Vrms

* In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.

2

DD-20(T)

3

Mar.2003

LOCATION OF CONTROLSfig.panel-p

C

1

B

5

15

4

C

E

F

G

D

A

D

336H2 7

8

9

10

11

1213 14

16

17 N18 19 20

21

22

K

J

L M

I

4

DD-20(T)

LOCATION OF CONTROLS PARTS LIST

No. Part Code Part Name Description1 G2477122 R-KNOB2 H5029855 SCREW M4X8 HEXAGON BUTTON HEAD NI3 G2567155 ENC ESC4 G2477130 ENC KNOB5 G2497001 KEYTOP S(RED)6 G2567156 LCD PANEL7 G2217180 PANEL8 G2217181 LED PANEL9 H5029851 PEDAL SHAFT

10 G2357116 PEDAL PLATE 62X5311 H5029852 SCREW 4M3 FEBZC HEXAGON SOCKET BUTTON HEAD12 75E041R000 PEDAL R13 75E041L000 PEDAL L14 75E041C000 CASE15 G247751301 VGA KEYTOP S WITHOUT LENS16 G2217182 REAR PANEL17 G2537731 QUICK MANUAL LABEL18 G2017621 BATTERY COVER19 75D422E000 BOTTOM COVER20 G2357118 BOTTOM FOOT21 40123545 JACK NUT 9X11X2 HLJ0999-01-240 NI22 40016467 JACK WASHER M9.2X14X0.5 FENIA 03231912 ROTARY ENCODER W/SW R-ENCODER EVQB1SZ1720BB F3279802 POTENTIOMETERNO CLICK 50KB RD901-40-125F-B54-00DC F5029106 LED (GREEN) L-32GDSLD 1502928100 LED (RED) L-34HDSLE F5029133 LED (BLUE) L-934MBDF F3129306 SWITCH SKQKABG F5029126 POWER LED L-113GDTH F5029414 LCD DC-320 AI F3279819 ROTARY POT. W/CENTER CLICK RD901-40-125F-B54-0CD 50KBJ F3279803 POTENTIOMETER 11 CLICKS 50KB RD901-40-125F-B54-11DK 13129778 TACT SWITCH SKQKAHL F3449707 PHONE JK(STREO) HTJ-064-12DSM 13449150MF PHONE JACK (STEREO) HTJ-064-12DN F344941501 ADAPTOR JK KM02009BB

5

Mar.2003

EXPLODED VIEWFIG.EXPLO2

a

11

18

a

12

18

11

16

j

14

15

17

10

13

6

DD-20(T)

BBBBGGGG222222223333

b

43

28 23

b

f

e25

261

k27

21

20

m

n

c

22

24

32

29

3332

30

31

44

1

45

45

7

Mar.2003

fig.explo3

1

2

5

3i

4

g

hRIGHT SIDELEFT SIDE9

6

7

8

8

DD-20(T)

EXPLODED VIEW PARTS LIST

[PARTS]

[SCREWS]

No. Part Code Part Name Description Q’ty1 75E041C000 CASE 12 G2357111 CUSHION R 23 H5029851 PEDAL SHAFT 24 2215770201 PEDAL GUIDE BUSH 215-702 25 2217710900 COIL SPRING 217-109 26 G2357116 PEDAL PLATE 62X53 27 G2357115 PEDAL FOOT M8 28 75E041R000 PEDAL R 19 75E041L000 PEDAL L 1

10 G2017148 BOTTOM COVER 111 G2357118 BOTTOM FOOT 212 G2017621 BATTERY COVER 113 G2017620 BATTERY CASE 114 G2177308 BATTERY TERMINAL(+) 115 G2177309 BATTERY TERMINAL(-) 116 G2177307 BATTERY TERMINAL(+-) 117 G2257130 BATTERY INSULATING SHEET 118 G2537731 QUICK MANUAL LABEL 120 G2477130 ENC KNOB 121 G2477122 R-KNOB 422 G2567155 ENC ESC 123 G2257129 INSULATING SHEET CENTER 124 G2217180 PANEL 125 G2217182 REAR PANEL 126 G2217181 LED PANEL 127 G2567156 LCD PANEL 128 G2197127 JACK SPACER 129 F5029414 LCD DC-320 A 130 G224780201 DIFFUSION SHEET 131 F5029410 LCD BACKLIT 43.3X23.6 132 G247751301 VGA KEYTOP S WITHOUT LENS 333 G2497001 KEYTOP S(RED) 143 G2147807 JACK HOLDER 144 75E041M000 JACK BOARD ASSY 145 75E041P000 PANEL BOARD ASSY 1

No. Part Code Part Name Description Q’tya H5029115 SCREW 3X8 PAN TATITE FEBZC 7b H5019110 SCREW M3X6 PAN TAPTITE FEZC 13c H5029855 SCREW M4X8 HEXAGON BUTTON HEAD NI 4e 40016467 JACK WASHER M9.2X14X0.5 FENI 6f 40123545 JACK NUT 9X11X2 HLJ0999-01-240 NI 6g H5029852 SCREW 4M3 FEBZC HEXAGON SOCKET BUTTON HEAD 2h H5039413 NYLON WASHER M4.1X7.5X0.5 BLACK 2I H5039413 NYLON WASHER M4.1X7.5X0.5 BLACK 2j H5019430 SCREW M2.6X5 BINDING HEAD TAPTITE P FEZC 2k H5039521 VR ACCESSORY NUT M7 4m H5039521 VR ACCESSORY NUT M7 1n H5039127 VR WASHER M7 1

9

Mar.2003

PARTS LIST

fig.part1e

SAFETY PRECAUTIONS:The parts marked have safety-related characteristics. Use only listed parts for replacement.

CONSIDERATION ON PARTS ORDRINGWhen ordering any parts listed in the parts list, please specify the following items in the order sheet.

QTY PART NUMBER DESCRIPTION MODEL NUMBEREx. 10 22575241 Sharp Key C-20/50

15 2247017300 Knob (orange) DAC-15DFailure 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)

CASING Q’ty

G2357116 PEDAL PLATE 62X53 2 G2017620 BATTERY CASE 1 G2017621 BATTERY COVER 1 75D422E000 BOTTOM COVER 1 G2357118 BOTTOM FOOT 2# 75E041C000 CASE 1# G2217181 LED PANEL 1# G2217180 PANEL 1# 75E041L000 PEDAL L 1# 75E041R000 PEDAL R 1 H5029851 PEDAL SHAFT 2# G2217182 REAR PANEL 1

KNOB,BUTTON

# G2567155 ENC ESC 1# G2477130 ENC KNOB 1# G2497001 KEYTOP S(RED) 1# G2567156 LCD PANEL 1 G2477122 R-KNOB 4 G247751301 VGA KEYTOP S WITHOUT LENS 3

SWITCH

13129778 SKQKAH TACT SWITCH SW6,SW1 on panel 2 F3129306 SKQKAB SWITCH SW2,SW3,SW4,SW5 on panel 4

JACK,EXT TERMINAL

# F3449707 HTJ-064-12DS PHONE JK(STREO) JK1,JK2 on Jack 2 13449150MF HTJ-064-12D PHONE JACK (STEREO) JK3,JK4,JK5,JK8 on Jack 4# F344941501 KM02009BB ADAPTOR JK JK6 on Jack 1

DISPLAY UNIT

F5029410 43.3X23.6 LCD BACKLIT 1# F5029414 DC-320 A LCD LCD1 on panel 1

PWB ASSY

# 75E041M000 JACK BOARD ASSY 1# 75E041P000 PANEL BOARD ASSY 1

IC

# F5199108 NJM2374AM-TE1 IC (SWITING REGULATOR) IC11 on Jack 1# F5179307 M12L6416-7T IC (SDRAM) IC16 on Jack 1# F5209130 M51957BFP IC (RESET) IC7 on Jack 1# 15289216 M5218AFP-600E IC (OP AMP) IC1,IC4,IC5 on Jack 3# F5279308 BU2090F IC (LED DRIVER) IC1on panel 1# 03232367 DRIVER BU9728AKV-E2 IC (LCD DRIVER) IC2 on panel 1# 03236601 UPD703105AGJ-019-UEN DD-20 1. IC (CPU) IC8 on Jack 1 F5289102 NJM2100M 8P SOP IC (OP.AMP) IC3 on Jack 1 F5179604 CAT24WC02J IC (EEPROM) IC10 on Jack 1 02565501 TC220CCA0AF-B01(MR3) IC (DSP) IC9 on Jack 1 F5179125 S-8520E33MC-BJS-T2 IC (DC-DC) IC12 on Jack 1 01679990 AK4524VF-E2 IC (AD/DA) IC6 on Jack 1# F5279305 TC4066BFT IC IC18 on Jack 1# F5179171 TC7S14FU-TE85L IC IC15 on Jack 1

15189250 M5218AL IC (OP AMP) IC13 on Jack 1

10

DD-20(T)

TRANSISTOR

15319107 2SC4116-GR(TE85R) TRANSISTOR Q9,Q10,Q11,Q12,Q13,Q14,Q15 on Jack 7 15329521 RN1307(TE85R) TRANSISTOR Q7 on Jack 1# F5329536 CPH6302 POWER MOS FET Q17 on Jack 1 15329103 2SK880GR-TE85R FET TRANSISTOR Q1,Q5 on Jack 2 F5329530 2SK879Y FET Q2,Q3,Q4,Q6,Q8 on Jack 5# F5119901 RN1207-TE85R DIGITAL TRANSISTOR Q1 on panel 1

DIODE

# 15019523CH RD 5.1EB3 ZENNER DIODE D1 on panel 1 15019126 1SS133 T-77 SWITCHING DIODE D2,D3,D4,D5,D6,D7 on panel 6 F5029126 L-113GDT POWER LED LED1 on panel 1 1502928100 L-34HDSL LED (RED) LED10,LED11,LED12,LED14,LED15,LED16,LED

17 on panel7

F5029106 L-32GDSL LED (GREEN) LED9 on panel 1 F5029133 L-934MBD LED LED6 on panel 1 15339120 1SS302 DIODE DA1,DA2,DA3,DA4,DA5,DA6,DA7 on Jack 7 F5339138 1SS355 DIODE D1,D2,D3,D4,D5,D6 on Jack 6 F5339137 SS14 VF=0.45V DIODE D7,D9,D10 on Jack 3# F5029129 SML-110MT CHIP LED(GREEN) LED2,LED3,LED4,LED5 on panel 4

RESISTOR

F5419707 CRN34101J RESISTOR ARRAY RA9,RA12,RA15,RA16 on Jack 4# F5419764 CRN34470J RESISTOR ARRAY RA3,RA5,RA6,RA7,RA8,RA10,RA11,RA13,RA17

on Jack9

# F5419714 EXBA10P103J RESISTOR ARRAY RA2,RA4 on Jack 2 F5429366 15K OHM F RANK (1%) RESISTOR (CHIP) R86 on Jack 1 F5419716 CRN34103J RESISTOR (CHIP) RA14,RA18,RA20 on Jack 3 F5419726 CRN34473J RESISTOR ARRAY RA1 on Jack 1 F2569127 MINISMDC075 POLY SWITCH R76 on Jack 1 00566867 RPC05T 100 J MTL.FILM RESISTOR R126 on Jack 1 00567023 RPC05T 101 J MTL.FILM RESISTOR R73,R145,R146 on Jack 3 00567156 RPC05T 102 J MTL.FILM RESISTOR R7,R31,R51,R70,R74,R78,R90,R120,R129 on Jack

R12,R13,R14,R15 on panel9

00567289 RPC05T 103 J MTL.FILM RESISTOR R3,R8,R13,R15,R18,R23,R26,R29,R32,R34,R37,R42,R71,R72,R83,R101,R102,R119,R130,R157,R160,R163,R166 on Jack

23

00567412 RPC05T 104 J MTL.FILM RESISTOR R10,R11,R22,R36,R50,R55,R56,R57,R58,R59,R108,R115,R117,R127,R154,R156 on Jack

16

00567556 RPC05T 105 J MTL.FILM RESISTOR R4,R9,R16,R17,R25,R27,R33,R45,R46,R60,R61,R62,R63,R64,R88 on Jack

15

00567290 RPC05T 123 J MTL.FILM RESISTOR R161,R162 on Jack 2 00567334 RPC05T 273 J MTL.FILM RESISTOR R82 on Jack 1 00567367 RPC05T 393 J MTL.FILM RESISTOR R12,R14,R30,R43 on Jack 4 00566967 RPC05T 470 J MTL.FILM RESISTOR R75,R92,R93,R95,R137,R138,R139,R140,R141,

R142 on Jack10

00567245 RPC05T 472 J MTL.FILM RESISTOR R48,R49,R79,R80,R85,R153,R155 on Jack 7 00567378 RPC05T 473 J MTL.FILM RESISTOR R1,R2,R5,R6,R19,R20,R21,R28,R35,R40,R41,R44,

R47,R65,R66,R67,R68,R69,R103,R104,R105,R106,R110,R111,R112,R113,R118,R124,R136,R159 on Jack

30

00567278 RPC05T 822 J MTL.FILM RESISTOR R24,R38,R39,R52 on Jack 4# F5399950 R-33_1/2W CHIP RESISTOR(1/2W) R109,R116 on Jack 2 F5399908 1 J (3225TYPE) CHIP RESISTOR R77 on Jack 1 F5429392 287K F (1608TYPE) CHIP RESISTOR R81 on Jack 1 01788301 RD16ST26A 102 J CARBON RESISTOR R5,R6,R11,R17,R18,R19,R20 on panel 7# 01897556 RD16ST26A 221 J CARBON RESISTOR R7 on panel 1 01788312 RD16ST26A 222 J CARBON RESISTOR R3 on panel 1 01897578 RD16ST26A 331 J CARBON RESISTOR R4 on panel 1# F5399296 R-603/4R7 MTL.FILM RESISTOR R53 on Jack 1

00567112 RPC05T 471 J CHIP RESISTOR R1,R2 on panel 200567501 RPC05T 474 J CHIP RESISTOR R16 on panel 1

POTENTIOMETER

F3279819 RD901-40-125F-B54-0CD 50KB ROTARY POT. W/CENTER CLICK VR2 on panel 1 F3279802 RD901-40-125F-B54-00D POTENTIOMETERNO CLICK 50KB VR3,VR4 on panel 2 F3279803 RD901-40-125F-B54-11D POTENTIOMETER 11 CLICKS 50KB VR1 on panel 1

CAPACITOR

13639581M0 10/35V ELECTROLYTIC CAPACITOR (7MM) C4,C6,C8,C12,C13,C18,C20,C28,C34,C58,C59,C82

14

F5239252 47/50V ELECTROLYTIC CAPACITOR (7MM) C79,C80 on Jack 2 F5349400 B0805F105ZNT CHIP CAPACITOR (2012TYPE) C108,C33 on Jack 2# F5359332 C-603/105P CHIP CAPACITOR C170 on Jack 1# F5359354 C-603/334P CHIP CAPACITOR C40,C41,C42,C43,C44 on Jack 5

11

Mar.2003

# 15359701 CERAMIC CAPACITOR ECUV1H104ZF CHIP CAPACITOR C23,C27,C46,C47,C48,C49,C50,C52,C54,C55,C56,C57,C60,C74,C76,C78,C84,C96,C97,C103,C134,C136,C140,C141,C142,C143,C144,C147,C149,C154,C155,C156,C157,C158,C159,C160,C161,C162,C163,C180,C181 on Jack, C1 on panel

42

# 00239601 0.1U/50V POLYEST CAPACITOR C2,C16 on Jack 2 13629624S0 6SC10M+T (OS) 6.3V10 CHEMICAL CAPACITOR C5 on Jack 1 02891767 RC2-16V100M-T2 CHEMICAL CAPACITOR C26,C31,C35,C75,C135,C145 on

Jack, C3 on panel7

02891745 RC2-16V101M-T2 CHEMICAL CAPACITOR C45,C61,C83,C95,C98,C100,C106,C112,C139,C164 on Jack

10

02897889 RC2-16V470M-T2 CHEMICAL CAPACITOR C148 on Jack 1 02782723 RC2-50V010M-T2 CHEMICAL CAPACITOR C137 on Jack 1 02129534 ECJ1VB1H102K CERAMIC CAPACITOR C21,C22,C114,C119,C131 on Jack,

C4 on panel6

01674612 ECJ1VB1H103K CERAMIC CAPACITOR C150,C152,C165,C166,C167,C168 on Jack

6

F5359816 C-603/683P CERAMIC CAPACITOR C77 on Jack 1 01674334 ECUV1H101JCV CERAMIC CAPACITOR C3,C17 on Jack 2 01674356 ECUV1H151JCV CERAMIC CAPACITOR C86,C104,C110 on Jack 3 01674201 ECUV1H180JCV CERAMIC CAPACITOR C92 on Jack 1 01674212 ECUV1H220JCV CERAMIC CAPACITOR C91 on Jack 1 01674234 ECUV1H330JCV CERAMIC CAPACITOR C1,C10,C15,C30 on Jack 4 01674423 ECUV1H471JCV CERAMIC CAPACITOR C11,C32 on Jack 2

15359612 ECUV1H100DN CERAMIC CAPACITOR C51,C101,C102,C107,C113,C120,C130,C151,C153 on Jack

9

13519452 DD-306-959F104Z25 CERAMIC CAPACITOR C2 on panel 1

CAPACITOR

INDUCTOR,COIL,FILTER

F2449214 SLF12555T-681MR43 680UH SMD COIL L2 on Jack 1# F5409134 BLM18BD152SD1 FERRITE-BEAD L16,L17 on Jack 2# F5409102 N1608Z601T02 FERRITE-BEAD L1,L4,L8,L9,L12,L13,L18,L21,L24,L25 on Jack 10# F5409133 QT1608RL600HC1A FERRITE-BEAD L19,L20,L22 on Jack 3 F5409114 NFM4516P13C204F EMI FILTER C62 on Jack 1 F2449209 SLF7032T-151MR29-2(150UH) COIL L3,L5 on Jack 2

CRYSTAL,RESONATOR

F5299307 HC-49SM 11.2896MHZ CRYSTAL X2 on Jack 1 F5299114 HC-49SM 5MHZ CRYSTAL X3 on Jack 1

ENCODER

# 03231912 R-ENCODER EVQB1SZ1720B ROTARY ENCODER W/SW ENC_on panel 1

CONNECTOR

F3439160 53015-0210 2P P=2MM CONNECTOR CN3 on Jack 1 F3439161 A2001WR2-16P P=2MM CONNECTOR CN2,CN1 on Jack 2# F3439197 A2541WV2-2AX12P SOCET CN3,CN4 on panel 2

WIRING,CABLE

G3477154 FLAT CABLE 3P P=2MM CN4,CN5 on Jack 2G3489223 WIRING 16P 16P CN1,CN2 on panel 2

G3487163 WIRING BATTERY L=80MM 2P 1

SCREWS

H5029115 SCREW 3X8 PAN TATITE FEBZC 7 H5019110 SCREW M3X6 PAN TAPTITE FEZC 13 40123545 JACK NUT 9X11X2 HLJ0999-01-240 NI 6 H5029852 SCREW 4M3 FEBZC HEXAGON SOCKET BUTTON HEAD 2 H5029855 SCREW M4X8 HEXAGON BUTTON HEAD NI 4 40016467 JACK WASHER M9.2X14X0.5 FENI 6 H5039413 NYLON WASHER M4.1X7.5X0.5 BLACK 4 H5019430 SCREW M2.6X5 BINDING HEAD TAPTITE P FEZC 2 G2197127 JACK SPACER 1# G2147807 JACK HOLDER 1

H5039414 NYLON WASHER M7.5X4.1X0.5 BLACK 2 H5039521 VR ACCESSORY NUT M7 5 H5039127 VR WASHER M7 1

PACKING

H2679505 POLYETHYLENE BAG 220X340X0.03 1# G2607110 PACKIN CASE UPPER 1 G2607212 PACKING CASE LOWER 1

12

DD-20(T)

G2237613 REAR PAD 1 G2237614 SIDE PAD 1

PACKING

MISCELLANEOUS

G2357115 PEDAL FOOT M8 2 H2369450 LED SPACER H=8MM 5 2217710900 COIL SPRING 217-109 2 2215770201 PEDAL GUIDE BUSH 215-702 2 G2257130 BATTERY INSULATING SHEET 1 G2177308 BATTERY TERMINAL(+) 1 G2177307 BATTERY TERMINAL(+-) 1 G2177309 BATTERY TERMINAL(-) 1 G2357111 CUSHION R 2 G2257129 INSULATING SHEET CENTER 1 G2197126 LED GUIDE 1# H2369429 LED SPACER 3-9 LED6 1# G2537731 QUICK MANUAL LABEL 1# G224780201 DIFFUSION SHEET 1

ACCESSORIES (Standard)

G601730301 IMPORTANT NOTES JAPANESE/ENGLISH 1# G6017365 OWNER’S MANUAL JAPANESE 1# G6017366 OWNER’S MANUAL ENGLISH 1# ******** ALKALINE BATTERY GP15A a pair of batteries 3

13

Mar.2003

CHECKING THE VERSION

NUMBER

1.

Turn all volume controls completely to the left.

2.

While holding down the left pedal’s ON/OFF and the right pedal’s TAP/MEMORY, connect the AC ADAPTOR to the ADAPTOR jack (which turns on the power).

3.

Only the POWER LED lights up.

4.

Release the left and right pedals.

5.

Within four seconds, press the left pedal and the right pedal, in that order.

6.

The unit switches to Test mode, and all of the LEDs light up or flash.

7.

The version number will be shown in the LCD.

In “2,” if no AC ADAPTOR is connected to the ADAPTOR jack, the power can be turned on by inserting batteries in the unit and connecting the INPUT A(MONO) plug.

RESTORING THE FACTORY

SETTINGS

Carrying out the following procedure completely clears the content currently stored in the memories (1-4).

1.

Switch off the power.

2.

While holding down the WRITE button, switch on the power.

The MEMORY Number indicators (1-4) flash.

fig.50

3.

Press the WRITE button.

After the MEMORY Number indicators (1-4) begin flashing rapidly, the setting is stored in memory and the unit returns to its ordinary state.

To cancel the setting change and the unit returns to its ordinary state, then before you press the WRITE button, operate the MEMORY/TAP or ON/OFF pedal.

TEST MODE

Test Items

1.

DSP, EEPROM Check (also used to indicate the version)

2.

LCD, Switch, LED Checks, Foot Switch Operational Check

3.

VR, Encoder Check

4.

DAC, PHONES Check (includes OUTPUT A (MONO), B jack detection check)

5.

ANALOG BYPASS Check (includes INPUT B jack detection check)

6.

MUTE Check

7.

DSP THRU Check

8.

AD MUTE Check

9.

ANALOG BYPASS Check

10.

DSP MUTE Check

11.

INPUT Level Switch Check

12.

SDRAM Check

13.

MODE Volume Operational Check

14.

Factory Reset

15.

Residual Noise, Shock Noise Check

16.

Battery Operation Check

Tools Required

• Oscillator

• Parallel box (BOSS J-5)

• Oscilloscope

• Noise meter

• 47 k[ohm] short plug (#17048536) Please refer to the following figure.

• Stereo/monaural converter cable (PCS-31 or similar)

• FS-5U (BOSS) (2)

• AC ADAPTOR (PSA-100)

fig.plug

14

DD-20(T)

Entering Test Mode

1.

Connect standard audio (mono) cables to all of the INPUT A(MONO) and B jacks and OUTPUT A(MONO) and B jacks, and connect a stereo/monaural converter cable (PCS-31 or similar) to the CTL jack. Connect the other ends to the two FS-5U foot switches, and set the “POLARITY” switch on the FS-5Us towards the FS-5U jacks.

2.

Turn all volume controls completely to the left (to minimum).

3.

While holding down the left pedal’s ON/OFF and the right pedal’s TAP/MEMORY, connect the +9V DC plug to the ADAPTOR jack (which turns on the power).

4.

Only the POWER LED lights up.

5.

Release the left and right pedals.

6.

Within four seconds, press the left pedal and the right pedal, in that order.

7.

The unit switches to Test mode, and all of the LEDs light up or flash.

In “2”, if no +9V DC plug is connected to the ADAPTOR jack, the power can be turned on by inserting batteries in the unit and connecting the INPUT A(MONO) plug.

The “DSP, EEPROM Check” commences automatically with entry into Test mode.

The status of the LEDs differs when entering into Test mode. For more detailed information, refer to the item “DSP, EEPROM Check.”

The unit cannot enter Test mode unless all of the volume controls are turned to minimum (MODE: “SOS”).

To conduct only a specific test, after entering Test mode, switch the MODE volume control to the setting corresponding to the desired test.

Although carrying out the procedure in “1” switches the unit to Test mode, “2. LCD, Switch, LED Checks, Foot Switch Operational Check” cannot be run alone.

Detailed Test Items

1.

DSP, EEPROM Check (also used to indicate the version)

• Enter Test mode.

• After the unit is switched to Test mode, the version number automatically appears in the LCD as a four-digit number, while simultaneously the DSP and EEPROM check is performed.

• Confirm that all of the LEDs are lit, indicating that no problem was detected.

If there is a problem, the cause is indicated by the LEDs as described below.

ON/OFF flashing:EEPROM error

MEMORY flashing:DSP PRAM error

TAP flashing: IRAM error

MEMORY, TAP flashing:DSP ERAM error

ON/OFF, MEMORY flashing:DSP INT error

ON/OFF, TAP flashing:DSP DRQ error

2.

LCD, Switch, LED Checks, Foot Switch Operational Check

Press the [TAP] switch. Confirm that the LCD’s “8.8.8.8” lights up and go off in the sequence shown below.

15

Mar.2003

fig.1

If the LCD display does not change even after the [TAP] switch is pressed, confirm that all of the cables are connected to the jacks and the FS-5U “POLARITY” switches are set correctly as described in “1” in “Entering Test Mode.”

16

DD-20(T)

• Press the [TEMPO] switch. Confirm that the characters light up and go off in the sequence shown below.

fig.2

• Press the [WRITE] switch. Confirm that the notes light up and go off in the sequence shown below.

fig.3

• Press the [SELECT] switch. Confirm that the entire LCD is on and that all of the LEDs are lit.

• Confirm that the LEDs go off in the following sequence, one each time the [SELECT] switch is pressed: “LCD backlighting” “4,” “3,” “2,” “1,” “MANUAL,” “TEMPO,” “MEMORY,” “TAP,” and “ON/OFF.” When “ON/OFF” goes off (all LEDs all unlit), press the [SELECT] switch to turn on all of the LEDs again.

• Press the FS-5U connected to the left channel of the stereo/monaural converter cable (PCS-31 or similar). Confirm that “C 1” appears in the display.

• Press the FS-5U connected to the tight channel of the stereo/monaural converter cable (PCS-31 or similar). Confirm that “C 12” appears in the display.

17

Mar.2003

Nothing will appear in the display if the right channel’s FS-5U is pressed before the one connected to the left channel.

3.

VR, Encoder Check

• Set the MODE control to “TWIST.” “2” appears in the LCD.

• Input a sine wave (200 Hz, 16Vp-p) from the oscillator to INPUT A(MONO) and B.

• Connect the oscilloscope to OUTPUT A(MONO) and B.

• Rotate the E.LEVEL volume from the far left (minimum) to far right (maximum). Confirm that the LCD changes from “O” to “127” and that the waveform output from OUTPUT A(MONO) and B changes from minimum to maximum size.

• Rotate the F.BACK volume from the far left (minimum) to far right (maximum). Confirm that the LCD changes from “O” to “127” and that the waveform output from OUTPUT A(MONO) and B changes from minimum to maximum size.

• Rotate the TONE volume from the far left (minimum) to far right (maximum). Confirm that the LCD changes from “O” to “127” and that the waveform output from OUTPUT A(MONO) and B changes from minimum to maximum size.

• Rotate ENC at least two clicks from the far right position. Confirm that “E-” appears in the LCD.

• Rotate ENC at least two clicks from the far left position. Confirm that “E--” appears in the LCD.

• Press the ENC switch. Confirm that “E-O-” appears in the LCD.

4.

DAC, PHONES Check (includes OUTPUT A (MONO), B jack detection check)

• Set the MODE control to “WARP.” “3” appears in the LCD.


• Confirm that the waveform output from OUTPUT A(MONO) and B matches the figure below.

fig.4

(200 mV/DIV, 1 mS/DIV)

• Disconnect the cable from the OUTPUT A(MONO) jack, leaving the oscilloscope connected only to OUTPUT B.

• Confirm that the waveform output from OUTPUT B matches the figure below.

fig.5


• Connect the oscilloscope to OUTPUT A(MONO), and disconnect the cable from the OUTPUT B jack.

• Confirm that the waveform output from OUTPUT A matches the figure below.

fig.6


• Connect the cables to the OUTPUT A(MONO) and B jacks.

• Connect the oscilloscope to PHONES L/R.

• Confirm that the waveform output from PHONES L/R matches the figure below.

18

DD-20(T)

fig.7


5.

ANALOG BYPASS Check (includes INPUT B jack detection check)

• Set the MODE control to “TAPE.” “4” appears in the LCD.




fig.8

(5V/DIV, 1 mS/DIV)

Disconnect the cable from the OUTPUT B jack.


fig.9

(5V/DIV, 1 mS/DIV)

6.

MUTE Check

• Set the MODE control to “ANALOG.” “5” appears in the LCD.



• Confirm that nothing is output from OUTPUT A(MONO) and B.

7.

DSP THRU Check

• Set the MODE control to “STANDARD.” “6” appears in the LCD.




fig.10

(5 V/DIV, 1 mS/DIV)

8.

AD MUTE Check

• Set the MODE control to “DUAL.” “7” appears in the LCD.



9.

ANALOG BYPASS Check

• Set the MODE control to “PAN.” “8” appears in the LCD.



19

Mar.2003

fig.11

(5 V/DIV, 1 mS/DIV)

10.

DSP MUTE Check

• Set the MODE control to “SMOOTH.” “9” appears in the LCD.



11.

INPUT Level Switch Check

• Set the MODE control to “MODULATE.” “10” appears in the LCD.


• Confirm that the waveform output from OUTPUT A(MONO) and B is distorted as in the figure below.

fig.12

(5 V/DIV, 1 mS/DIV)

12.

SDRAM Check

• Set the MODE control to “REVERSE.” If no problem is detected, “Sd 0” appears in the LCD.

If a problem is detected, the cause is indicated by the LEDs as shown below.

ON/OFF, MEMORY, TAP LEDs flashing: SDRAM error

13.

MODE Volume Operational Check

• Following the “SDRAM Check,” rotate the knob one click at a time in the left (counterclockwise) direction.

• Confirm that the numbers appearing in the LCD change one by one with each click from “10” to “1.”

14.

Factory Reset

Executing Factory Reset results in the loss of all data saved by the user. If Factory Reset is not required, turn off the power to quit Test mode.

Factory Reset may be run without entering Test mode. To run Factory Reset only, refer to “Instructions for Running Factory Reset” in these service notes.

• Following the “MODE Volume Operational Check,” rotate MODE from “SOS” to “STANDARD.”

• ”FAct” appears in the LCD, and the “1,” “2,” “3,” and “4” LEDs flash.

• Press the [WRITE] button. The “1,” “2,” “3,” and “4” LEDs flash more rapidly, then return to normal condition.

15.

Residual Noise, Shock Noise Check

Conduct the “Residual Noise, Shock Noise Check” with the noise meter set to IHF-A, AVERAGE.

• Switch to Test mode according to the instructions in “Entering Test mode.”

• Connect a 47-k

Ω

short plug to INPUT A(MONO) and B.

• Connect the noise meter to OUTPUT A(MONO). Connect an open plug to OUTPUT B.

• Confirm that the measured value with the noise meter (IHF-A) is -82 dBu or less.

• Connect the noise meter to OUTPUT B. Connect the open plug to OUTPUT A(MONO).


• Connect a monitor speaker to OUTPUT A(MONO). Connect the open plug to OUTPUT B.

• Subject the unit to shock by dropping it from a height of 10 cm, then confirm that the unit produces no unusual noise.

• Connect a monitor speaker to OUTPUT B. Connect the open plug to OUTPUT A(MONO).

• Shock-test the unit by dropping it from a height of 10 cm, then confirm that the unit produces no unusual noise.

• Connect a monitor speaker to the left side of PHONE L/R.


• Connect a monitor speaker to the right side of PHONE L/R.


• Press the pedal’s ON/OFF switch to return from Test mode to the normal operating mode.

• Adjust the volume as described below.E.LEVEL: Maximum (turned completely to the right) E.LEVEL: Minimum (turned completely to the left) E.LEVEL: Maximum (turned completely to the right) MODE: STANDARD

If “+4” appears in the LCD, first turn off the power, then use the procedure below to turn the power back on, and perform the following test.

• While holding down the left pedal (ON/OFF), turn on the power.

• Press the [SELECT] switch a number of times until “out1” appears in the LCD.

• Press the [WRITE] switch.






• Shock-test the unit by dropping it from a height of 10 cm, then confirm

20

DD-20(T)

that the unit produces no unusual noise.

• Connect a monitor speaker to OUTPUT B. Connect the open plug to OUTPUT A(MONO).




• Rotate F.BACK from the far left (minimum) to far right (maximum) several times, and confirm that there is no scratching or other such noise from the monitor speakers.

• Set F.BACK to the far left (minimum).

• Rotate TONE from the far left (minimum) to far right (maximum) several times, and confirm that there is no scratching or other such noise from the monitor speakers.

• Set TONE to the far right (maximum).

• Rotate E.LEVEL from the far left (minimum) to far right (maximum) several times, and confirm that there is no scratching or other such noise from the monitor speakers.

• Set E.LEVEL to the far right (maximum).

• Rotate MODE from the “SOS” to “REVERSE” several times, and confirm that there is no scratching or other such noise from the monitor speakers.

• Set MODE to “STANDARD.”

• Rotate ENCODER back and forth from left to right several times, and confirm that there is no scratching or other such noise from the monitor speakers.

• Set the volumes as follows.E.LEVEL: CENTERF.BACK: CENTERTONE: CENTERMODE: STANDARDDELAY TIME: 300ms





16.

Battery Operation Check

• Insert batteries in the battery box, and plug into INPUT A(MONO).

• Confirm that the unit starts in the normal mode.

• Confirm that effect sounds are output.

21

Mar.2003 DD-20(T)

BLOCK DIAGRAM

fig.block

INPUT B OUTPUT B

PHONES

DC IN

+3.3V

+23V+9V

+9V

JACK BOARD

PANEL BOARD

OUTPUT A(MONO)

CTL

BATTERY

(JK IN/NO INPUT)

(JK IN/NO INPUT)

(JK IN/NO INPUT)

(JK IN/NO INPUT)

(JK IN/NO INPUT)

BUFFER(INV)IC1B

INPUT A(MONO)

BUFFERQ1

PRE EMPH/LEVEL CTLIC3B/IC18A

CODECAD/DA

IC6

PRE EMPH/LEVEL CTLIC3A/IC18B

DE EMPH/LEVEL CTLIC5A/IC18D

DE EMPH/LEVEL CTLIC5B/IC18C

FET SWQ2

FET SWQ3

FET SWQ4

FET SWQ6

FET SWQ8

EEPROMIC10

RESETIC7

LOGICIC15B,C

TRQ7

16 PIN

CN2

CN2

SDRAMIC16

MIXERIC4A

BUFFERIC13A

BUFFERIC13B

MIXERIC4A

CPUIC8

LOGICIC15A

TRQ9

CN1

CN1

16PIN

LED1ENC1LED6

LED2 - 5LED9 -12LED13-17

LED DRIVERIC1

SW1-6VR1-4

LCD1

LCD DRIVERIC2

CN31,CN41CN3,CN4

DSPIC9

DC-DCCONVERTER(STEP DOWN)

IC12,Q17

DC-DCCONVERTER

(STEP UP)IC11

RIPPLEFILTER

Q15

CN3

RIBON3P

CN5

CN4

BUFFERQ5

BUFFER(INV)IC1A

22 23

Mar.2003

CIRCUIT BOARD (JK-A)fig.B-JK-A

24

DD-20(T)
CIRCUIT BOARD (JK-B)fig.B-JK-B
25

Mar.2003

CIRCUIT BOARD (PANEL-A)fig.B-PANEL-A

26

DD-20(T)

CIRCUIT BOARD (PANEL-B)fig.B-PANEL-B

27

Mar.2003 DD-20(T)

CIRCUIT DIAGRAM (JACK)

fig.C-JK

INPUT B

INPUT A(MONO)

DSP

FLATCABLE2mm3P

EEPROM

11.2896MHz

+3.3V

680uH

+23V+11.5V

64MSDRAM

RESET

PHONES

CTL PEDAL

AD/DA

OUTPUT B

OUTPUT A(MONO)

*1

*1: 1.00LOT - 6.00LOT R53:5

*2:For Lot no.1.00 to 7.00 Lot the pin number for CN1,CN2 whichis printed on JK Board is opposite from that is written from thatis written in the circuit diagram.

*2

*2 CN1(1.00 LOT to 7.00LOT)SILK:1,2,3.......14,15,16

CN1 CIRCUIT:16,15,14.......1,2,3

CN2(1.00 LOT to 7.00LOT)SILK:1,2,3.......14,15,16

CN2 CIRCUIT:16,15,14.......1,2,3

CPU

MCLK

MCLK

CS6

CS6IOWR

IOWR

IOWR

WE

LED_CLK

LED_CLK

+9V+9V

ENC-AENC-A

LED_DATA

ENC_SW

LED_DATATEMPO(BLU)

SW_SCAN1SW_DATA0

SW_DATA0

SW_DATA1

SW_DATA2SW_DATA1

SW_DATA2

SW_SCAN1

SW_SCAN0

SW_SCAN0

ENC_SW

LCD_SCK LCD_SCK

D9

A21

A4

D11

D2D1

D12

WE

A0

A7

A4

DRQ0

LCD_SCK

D14

WE

D6D5

A22

A8

A11

A21

A6

A1

A5

A10

Serial_IO_SO

ENC-B

LCD_C/D LCD_C/D

D1

A12

A22

D5D4

D5

CS3

A3

A11

E.LEVEL

F.BACK

A3

D2

D0

VR_VDD

E.LEVEL

A2 A9

A7

D8

D0

Serial_IO_SI

E.TONE

INT0

D3

D10

A3

D11

D9

SDCKE

ENC-A1

A1

D8

D4

A0

INT0

A0

SDCKE

A22

D1

D13

D6

SDCAS

A9

SDCAS

A5

D[0:15]

Serial_IO_SCK

INT1

RESET

A2

D4

D4

LDQM

A2

A7

SDCLK

UDQM

D10

LCD_C/D

Serial_IO_SO

MODE

SDCLK

D4

LDQMUDQM

Vpp

D2D3

A6

A9

ENC-A2

RESET

LCD_SD LCD_SD

D6

MODE

E.TONE

A6

D10

D8

D15

D7

FET_DIR-R

LCD_SD

D0

D0

CS3

D7

D2

LDQM

UDQM

D15

D13

D15

D14

D7

A3

ENC-B

RESET

D1

D7

A21

D7

D10

A4

D8

D12

A12

D5

ENC-B

F.BACK

A1

A10

D5

D12

D14

D6

SDRAS

A8

INT1

A11D13

SDRAS

D11

D9

D6

D15 D2

D1

A5

A10 D11

A2

D3

D12

A4

SDCKE

D14 D3

A12

D3

D0

D13

A1

D9

A8

Serial_IO_SI

FET_EFX-R

DRQ0

Serial_IO_SCK

CS3

CS6

RD

RD

RD

SDCASSDCLK

SDRAS

D+3.3VD+3.3V

IN-B

OUT-A

BCLK

BCLK

DALRCK

LRCK

DAAD

AD

PD

OUT-B

IN-A

DGND

VR_GND

DGND

AGND

DGND

DGND

DGND

A

D

D

D

A

+D 3. 3

A

+

+

+

+

+

+

+D 3. 3

D

+D 3. 3

D

A

+

A

+

+D 3. 3

D

A

A

D D

A

+

+

+

+

+

A

A

+D 3. 3 D

+D 3.3

D

D

D

+D 3. 3

DD

+

A

A

D

+8.6V

A

+D 3. 3

+D 3.3

D

3.3V_CPU

D

D

D

+

A

D

+D 3.3

D

+D 3. 3

+D 3.3

D

+D 3. 3

+D 3. 3

+D 3. 3

+D 3.3 +D 3. 3

D

+D 3.3

+D 3. 3

+D 3. 3

D

D

D

+D 3. 3

+D 3. 3

D

+D 3.3

+D 3.3

D

VR_VDD

VR_VDD

D

D

D

+D 3. 3

D

A

+8.6V

+

A

+

+8.6V

D

+

+

+

D

D

D

A

D

+

+ ++ ++

3.3V_CPU

+D 3.3

+D 3.3

+D 3. 3

+D 3.3

+D 3. 3

+D 3. 3

D

AD

D

A

A

+D 3. 3

+

A

+8.6V

D

D

A A

A

A

D

D

A

AAA

D

A

A

AA

A

A

A

D

D

A

D

A

A

A

A

JK1HTJ-064-12DS

1

23

JK2HTJ-064-12DS

1

23

R310k

R2610k

R32

10k

R810k

Q12SK880GR3

12

Q52SK880GR

3

12

R41M

R271M

R547k

C133p

R147k

C1533p

R2847k

R1947k

R50100k

C3033p

R4210k

R1310k

C1033p

R1439k

R4339k

R601M

R611M

C3410/35

C1810/35

R82 27k

C770.068

R7110k

C95100/16

D7SS14

1 2

R8615kF

C7947/50

R781k

D9SS14

1 2

IC12S-8520E33MC-BJS-T2

ON/OFF1

VIN5

VSS2

EXT4

VOUT3

C960.1

R771(1W)

CN4RIBON 3P 1

1

22

33

L2SLF12555T-681MR43

C83100/16

R81287kF

R6547kR69

47k

C98100/16

C970.1

C780.1

CN5RIBON 3P 1

1

22

33

JK6KM02009BB

213

C20.1(Film)

C160.1(Film)

C740.1

+

- IC1CM5218AFP

84

R7547

DA11SS302

21

3

DA21SS302

21

3

R76miniSMDC075

C600.1

C52 0.1C50 0.1

C560.1

C46 0.1

C57 0.1

C47 0.1

C490.1

C48 0.1

C54 0.1

C45 100/16

IC9TC220C120AF-006

OSC1

VS

S2

OSCSEL3

VS

S4

XTO5XTI6

VD

D7

DIVS08 DIVS19

PLLBP10

VS

S11

VS

S12

TESTP13

VD

D14

VDD15

PLLVAA16

PLLRO17

PLLLP18

PLLAGS19

PLLAGD20

VSS21

VS

S22

VD

D23

VD

D24

RST25

VS

S26

CD727

CD628

CD529

CD430

VS

S31

TESTS32

VD

D33

CD334

CD235

CD136

CD037

VD

D38

DRQ39INT040INT141

DRST42

VS

S43

CA444

CA345

CA246

CA147

CA048

VD

D49

RD50

CS51

VS

S52

WR53

VS

S54

DIV55

VD

D56

DA057

AD058

VD

D59

BCK60

VS

S61

LRCK062

LRCK163

VD

D64

MCK65

VS

S66

DA167

AD168

DA269

AD270

VS

S71

CTYPE72

VD

D73

DA374

AD375

SYI76

TESTB77

TESTT78

VD

D79

VS

S80

C1490.1

IC10CAT24WC02J

A01

A12

A23

VSS4SDA

5

SCL6

WP7

VCC8

IC11

NJM2374AM-TE1

CS1

ES2

CT3

GND4

VIN-5VCC

6

IPK7

CD8

C100100/16

R854.7k

Q152SC4116GR

1

23

R804.7k

C8047/50

C8210/35

R794.7k

C270.1

+

-

IC3ANJM2100M

2

31

+

-

IC3BNJM2100M

6

57

+

- IC3CNJM2100M

84

C5810/35

C5910/35

DA41SS302

2 1

3

R701k

CN3

53015-0210

1122

X249US SMD

C9218p

C9122p

R901k

R881M

C115N.I.U

C116N.I.U

C1140.001

C840.1

C1030.1

L3SLF7032T-151MR37-2

X3CX-49G/5MHz

12

C153

10p

C151

10p

C1550.1

C1560.1

C1570.1

C1580.1

C1590.1

C1600.1

C1610.1

C1620.1

C1630.1

C164100/16

C14510/16

JK3HTJ-064-12D

1

23

C1210/35

R6647k

R621M

R10933(1/2W)

C112100/16

R11633(1/2W)

L16BLM18BD152SD1

L17BLM18BD152SD1

L18N1608Z601T01

RA18CRN34103J

1 82 73 64 5

RA1CRN34473J

18

27

36

45

R13647k

R22100k

C1310/35

DA51SS302

2 1

3

R1201k

DA61SS302

2 1

3

R1291k

L7N.I.U

L14N.I.U

L6N.I.U

L11N.I.U

R57100k

R154100k

R1534.7k

R156100k

R1554.7k

+

-

IC5CM5218AFP

84

+

-

IC1AM5218AFP

2

31

+

-

IC1BM5218AFP

6

57

Q17CPH6302

D2

G3

D5

S4

D1

D6

IC7M51957BFP

RS

T6

DLY5

VCC7

GN

D4

NC1

NC3

IN2

NC8

D61SS355

12

R164N.I.U

R165N.I.U

RA2EXBA10P103J

12345

6

789

10

RA4EXBA10P103J

12345

6

789

10

JK8HTJ-064-12D

1

23

L1N1608Z601T01

L4N1608Z601T01

L21N1608Z601T01

R4447k

R511k

R4747k

R494.7k

R484.7k

DA7

1SS302

2 1

3

DA3

1SS302

2 1

3

R741k

R398.2k

R388.2k

C220.001

C210.001

R143N.I.U

R15947k

CN8

NIU(IL-S-7P-S2T2)

11

22

33

44

55

66

77

C1701.0u

C10110p

C1800.1

C1810.1

C169N.I.U.

C1680.01

C1650.01

C1670.01

C1660.01

R11100k

L23N.I.U

D10SS14

12

L5SLF7032T-151MR37-2

R117 100k

R248.2k

+

-

IC5AM5218AFP

2

31

C11 470p

C420.33

R10100k

C11810/35

R11910k

C1190.001

R528.2k

C32 470p

R127 100k

+

-

IC5BM5218AFP

6

57

R13010k

C12910/35

C1310.001

C810/35

C410/35

Q7RN1307

1

23

C1430.1

R161M

C2010/35

RA9CRN34101J1 82 73 64 5

R142 47

RA15 CRN34101J

1 82 73 64 5

R16112k

C1440.1

R145 100R73100

R141 47

RA13 CRN34470J

1 82 73 64 5

C104150p

R16610k

C1420.1

R251M

R10647k

R11347k

C610/35

R140 47

RA12 CRN34101J1 82 73 64 5

R139 47

C13010p

R91M

RA17CRN34470J

1 82 73 64 5

R331M

R146 100

TP5

1

Q42SK879Y

3

12

+

-

IC13A M5218AL

2

31

TP11

1

TP19

1

R10347k

R11047k

RA10 CRN34470J

1 82 73 64 5

RA3 CRN34470J

1 82 73 64 5

R137 47 TP32

1

R641M

D41SS355

12

R171M

TP9

1TP

261

R11147k

TP6

1

D21SS355

12

C17100p

R647k

TP4

1

TP18

1

R10547k

R6847k

RA8 CRN34470J

1 82 73 64 5

R11247k

R11847k

C440.33

R247k

TP2

1

TP27

1

R10447k

TP10

1TP

291

R2047k

R58100k

D51SS355

12

Q82SK879Y

3

12

RA7 CRN34470J

1 82 73 64 5

TP28

1

R10110k

+

-IC4CM5218AFP

84

R461M

Q132SC4116GR

1

23

Q102SC4116GR

1

23

RA5 CRN34470J

1 82 73 64 5

TP8

1

TP22

1

R6747k

TP14

1

C1081/16

C61

100/16

TP3

1

+

-

IC4BM5218AFP

6

57

R631M

TP1

1

TP23

1

IC8DD-20 MASK CPU(UPD703105AGJ-019-UEN)

D14/PDL141

D13/PDL132

D12/PDL123

D11/PDL114

D10/PDL105

D9/PDL96

D8/PDL87

VDD8

VS

S9

D7/PDL710

D6/PDL611

D5/PDL512

D4/PDL413

D3/PDL314

D2/PDL215

D1/PDL116

D0/PDL017

VPP/MODE218

DRQ3/IP103/P0719

DRQ2/IP102/P0620

DRQ1/IP101/P0521

DRQ0/IP100/P0422

TO00/P0323

IP001/P0224

TIO00/IP000/P0125

PWM0/P0026

VDD27

VS

S28

DMAAK3/PBD329

DMAAK2/PBD230

DMAAK1/PBD131

DMAAK0/PBD032

TO01/P1333

IP011/P1234

TIO10/IP010/P1135

PWM1/P1036

VDD37

VS

S38

TC3/IP113/P2739

TC2/IP112/P2640

TC1/IP111/P2541

TC0/IP110/P2442

TO02/P2343

IP021/P2244

TIO20/IP020/P2145

NMI/P2046

VDD47

VS

S48

ADTRG/IP123/P3749

IP122/P3650

IP121/P3551

RXD2/IP120/P3452

TXD2/IP133/P3353

SCK2/IP132/P3254

SI2/IP131/P3155

SO2/IP130/P3056

MODE157

MODE058

RESET59

CKSEL60

CVDD61

X262

X163

CVSS64

SCK1/P4565

RXD1/SI1/P4466

TXD1/SO1/P4367

SCK0/P4268

RXD0/SIO/P4169

TXD0/SO0/P4070

AVDD/AVREF71

AVSS72

P77/ANI773

P76/ANI674

P75/ANI575

P74/ANI476

P73/ANI377

P72/ANI278

P71/ANI179

P70/ANI080

VDD81

VS

S82

P52/TO0383

P51/IP03184

P50/IP030/TI03085

PCM5/SELFREF86

PCM4/REFRQ87

PCM3/HLDRQ88

PCM2/HLDAK89

PCM1/CLKO/BUSCL90

PCM0/WAIT91

PCT7/BCYST92PCT6/OE93

PCT5/WE94

PCT4/RD95

PCT1/UCS/UW/UDQ96

PCT0/LCS/LW/LDQ97

VDD98

VS

S99

PCS7/CS7100

PCS6/CS6/RAS6101

PCS5/CS5/IORD102

PCS4/CS4/RAS4103

PCS3/CS3/RAS3104

PCS2/CS2/IOWR105

PCS1/CS1/RAS1106

PCS0/CS0107

PCD3/UBE/SDRAS108

PCD2/LBE/SDCAS109

PCD1/SDCLK110

PCD0/SDCKE111

VDD112

VS

S11

3

PAH9/A25114

PAH8/A24115

PAH7/A23116

PAH6/A22117

PAH5/A21118

PAH4/A20119

PAH3/A19120

PAH2/A18121

PAH1/A17122

PAH0/A16123

VDD124

VS

S12

5

PAL15/A15126

PAL14/A14127

PAL13/A13128

PAL12/A12129

PAL11/A11130

PAL10/A10131

PAL9/A9132

PAL8/A8133

VDD134

VS

S13

5

PAL7/A7136

PAL6/A6137

PAL5/A5138

PAL4/A4139

PAL3/A3140

PAL2/A2141

PAL1/A1142

PAL0/A0143

PDL15/D15144

C3100p

R12447k

TP25

1

D31SS355

12

+

-

IC4AM5218AFP

2

31

IC16M12L64164A-7T

VDD1

DQ02

VDDQ3

DQ14DQ25

VSSQ6

DQ37DQ48

VDDQ9

DQ510DQ611

VSSQ12

DQ713

VDD14

DQML15

WE16 CAS17 RAS18 CS19

BA0(A13)20

BA1(A12)21

A1022

A023 A124 A225 A326

VDD27

VSS28

A429 A530 A631 A732 A833 A934

A1135

NC36

CKE37

CLK38

DQMU39

NC40

VSS41

DQ842

VDDQ43

DQ944DQ1045

VSSQ46

DQ1147DQ1248

VDDQ49

DQ1350DQ1451

VSSQ52

DQ1553

VSS54

RA6 CRN34470J

1 82 73 64 5

R138 47

TP13

1

TP24

1

TP30

1

R55100k

Q22SK879Y

3

12

RA11 CRN34470J

1 82 73 64 5

TP7

1

TP20

1TP

211

+

-

IC13CM5218AL

84

Q32SK879Y

3

12

R16310k

R4147k

Q62SK879Y

3

12

TP31

1

C331/16

+

-

IC13B M5218AL

6

57

R2147k

TP15

1

TP12

1

TP33

1

D11SS355

12

RA16CRN34101J1 8

2 73 64 5

R7210k

RA20CRN34103J

1 82 73 64 5

C5110p

R108100k

C12010p

C10710p

C410.33

R36100k

R56100k

R59100k

R15710k

C2810/35

R451M

R8310k

C11310p

C430.33

C10210p

IC15ATC7W14FU1 7IC15C

TC7W14FU

6 2

IC15BTC7W14FU

3 5

RA14CRN34103J

1 82 73 64 5

L19QT1608RL600HC1A

L22

QT1608RL600HC1A

R1510k

R1810k

R2310k

C110150p

R95 47

R93 47R92 47

R29 10kR37 10kR34 10k

R16212k

C55

0.1

L20QT1608RL600HC1A

R16010k

R3547k

C230.1

C35 10/16

C124 N.I.U

C13510/16

C14847/16

C1371/50

C1340.1

R12610

C1470.1

C1360.1

R1239k

R3039k

IC18E

TC4066BF

14

7

IC18ATC4066BF

1 2

13

IC18BTC4066BF

4 3

5

IC18DTC4066BF

11 10

12

IC18CTC4066BF

8 9

6

C31 10/16

IC6AK4552VT

RIN1

LIN2

VS

S3

VA4

VD5

DEMO6

DEM17

SDTO8

SDTI9

LRCK10

MCLK11

BCLK12

PDN13

VCOM14

LOUT15

ROUT16

L24N1608Z601T01

L25N1608Z601T01

C106100/16

C2610/16

R10210k

C62NFM4516P13C204F

C139100/16

C1400.1

R71k

C1540.1

IC15DTC7W14FU

84

C7510/16

R4047k

C760.1

R311k

C1410.1

C86150p

C1520.01

JK4HTJ-064-12D

1

23

C1500.01

L12N1608Z601T01

L10N.I.U

Q122SC4116GR

1

23

L13N1608Z601T01

L9N1608Z601T01

Q112SC4116GR

1

23

JK5HTJ-064-12D

1

23

Q142SC4116GR

1

23

R115100k

L15N.I.U

L8N1608Z601T01

C400.33

Q92SC4116GR

1

23

R534.7

C510/6.3(OS)

CN2A2001WR2-16P

1616151514141313121211111010998877665544332211

CN1A2001WR2-16P

1616151514141313121211111010998877665544332211

28 29

Mar.2003 DD-20(T)

CIRCUIT DIAGRAM(PANEL)

fig.C-PANEL-S

POWER TEMPO(BLU)

(GRN)

BACKLIT

MEMORYTEMPO

4

DELAY

1

MEMORY/TAP

MANUAL

ON/OFF

TAP

WRITE

3

ON/OFF

HYPER MODE

TAPSELECT

2

TIME

F.BACK TONE E.LEVELMODE

(GRN)

CN2-14

SW_DATA1 SW_DATA1

CN2-15

SW_SCN0 SW_SCAN0

SW_DATA0 SW_DATA0

CN2-13

SW_DATA2 SW_DATA2

SW_SCN1 SW_SCAN1

CN2-16

VR_GND CN2-2VR_GNDVR_GND

VR_VDD VR_VDD CN2-7MODE MODE CN2-6F.BACK F.BACK CN2-5E.TONE E.TONE CN2-4

RESET RESET

SEG0COM2COM3COM0COM1

RESET

SEG1SEG2SEG3SEG4SEG5SEG6SEG7SEG8

SEG10SEG11SEG12

SEG1

SEG10SEG11SEG12SEG13

SEG2SEG3SEG4SEG5SEG6SEG7SEG8

IC_COM1

RESET

E_LEVEL E.LEVEL CN2-3

CN2-12

IC_COM2

IC_COM0

SEG9

SEG9

LCD_SD LCD_SD

SDC/SLCD_C/S

LCD_SD

LCD_C/S LCD_C/S

ENC_GND

ENC-A

AGND

DGND

TEMPO_BLU

DGNDDGND

+9V

LED_DATA

ENC_GND CN1-7

ENC_SW

ENC_GND

+9V ENC_SW CN1-5ENC-A CN1-6

ENC-B CN1-8

LED_CLK

ENC-B

SCK

LCD_SCK LCD_SCK

LCD_SCK

D+3.3VD+3.3V

IC_COM3

D

+D 3. 3

D

D

+D 3. 3

D

+D 3. 3

D

+D 3.3

D

D

D1 02D5.1Y12

LED3SML-110MT

12

LED5SML-110MT

12

LED2SML-110MT

12

LED4SML-110MT

12

LED6L-934MBD

12

LED12L-34HDSL

12

SW2SKQKAB1 2

LED11L-34HDSL

12

SW3SKQKAB1 2

LED9L-34GDSL

12

LED16L-34HDSL

12

LED15L-34HDSL

12

SW6SKQKAH1 2

SW1SKQKAH1 2

LED14L-34HDSL

12

SW5SKQKAB1 2

LED10L-34HDSL

12

C20.1

SW4SKQKAB1 2

R5 1kR6 1k

R1470

R2470

R32.2k

D21SS133

12

D51SS133

12

D31SS133

12

D41SS133

12

D71SS133

12

R17 1kR18 1kR19 1kR20 1k

LED1L-113GDT

12

D61SS133

12

R4330

VR2

RD901-40-125F-B54-00D1

2

3VR3

RD901-40-125F-B54-00D1

2

3VR1

RD901-40-125F-B54-11D1

2

3VR4

RD901-40-125F-B54-00D1

2

3

IC1BU2090AFP

VSS1

DATA2

CLOCK3

Q0 4Q15Q2 6Q3 7Q4 8Q5 9Q6 10Q7 11Q812Q9 13Q10 14Q1115

VD

D16

R7 220

R11 1k

LED17L-34HDSL

12

CN31A2541WV-2A*12P

1 1

2 2

33

4 4

5 5

66

7 7

8 8

9 9

10 10

11 11

12 12

IC2

BU9728AKV

OS

C2

2

COM214

SEG118

SEG017

RESET16

SEG724

COM113

COM315

SEG219

OS

C1

1

V1

3

V2

4

V3

5

VS

S6

VD

D7

SC

K8

SD

9C

S10

C/S

11C

OM

012

SEG320 SEG421 SEG522 SEG623

SE

G8

25

SE

G9

26

SE

G10

27

SE

G11

28

SE

G12

29

SE

G13

30

SE

G14

31

SE

G15

32

SE

G16

33

SE

G17

34

SE

G18

35

SE

G19

36

SEG20 37

SEG2138

SEG22 39

SEG23 40

SEG24 41

SEG25 42

SEG26 43

SEG27 44

SEG2845

SEG29 46

SEG30 47

SEG3148

R141k

R131k

R16470k

CN41A2541WV-2A*12P

112 23 3445 56 67 78 89 910 10111112 12

CN4A2541WV-2A*12P

11 22 33 44 55 66 77 88 99 1010 11

11 1212

CN3A2541WV-2A*12P

11

22

33

44

55

66

77

88

99

1010

1111

1212

EN

AB

ENC_AEVQB1SA1320B

123

45

Q1RN1207

3

12

C40.001

LCD1TA0021

SEG 13 13SEG 12 12

SEG 9 9SEG 88SEG 7 7SEG 6 6SEG 55SEG 4 4SEG 3 3SEG 2 2SEG 1 1

COM114

COM4 17

COM3 16

COM2 15

SEG 1111SEG 10 10

CN2A2001WR2-16P

16 16151514 1413 1312 1211 1110 109 9887 76 6554 43 32 21 1

C310/16

R151k

CN1A2001WR2-16P

161615 1514 1413 1312 1211 1110 10998 87 7665 54 43 32 21 1

C10.1

R121k

30 31

Mar.2003

32

dd-20(t) degital delay - the synthesizer database · 2 mar.2003 specifications dd-20: digital delay...

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