Boss DR-880 Service Notes

Page 1
Dec.2004

TABLE OF CONTENTS

CAUTIONARY NOTES........................................................ 2
SPECIFICATIONS................................................................. 2
LOCATION OF CONTROLS............................................... 3
LOCATION OF CONTROLS PARTS LIST ....................... 3
EXPLODED VIEW 1 ............................................................. 4
EXPLODED VIEW 1 PARTS LIST ...................................... 4
EXPLODED VIEW 2 ............................................................. 5
EXPLODED VIEW 2 PARTS LIST ...................................... 5
EXPLODED VIEW 3 ............................................................. 6
EXPLODED VIEW 3 PARTS LIST ...................................... 6
EXPLODED VIEW 4 ............................................................. 7
EXPLODED VIEW 4 PARTS LIST ...................................... 7
TAPE for fixed wring............................................................ 8
LOCATION TO PASTE of FOOT (Inside of Bottom) ...... 9
WIRING DIAGRAM........................................................... 10
WIRING DIAGRAM PARTS LIST.................................... 10
PARTS LIST.......................................................................... 12
DR-880
SERVICE NOTES
Issued by RJA
CHECKING THE VERSION NUMBER ...........................16
Computer to DR-880 connection .......................................16
USERS DATA SAVE AND LOAD ....................................16
FACTORY RESET INSTRUCTIONS ................................. 17
SYSTEM SOFTWARE UPDATING INSTRUCTIONS.... 18
TEST MODE.......................................................................... 18
BLOCK DIAGRAM .............................................................28
CIRCUIT BOARD (MAIN BOARD).................................. 30
CIRCUIT BOARD (MAIN BOARD).................................. 32
CIRCUIT DIAGRAM (MAIN, VOLUME)........................ 34
CIRCUIT DIAGRAM (JACK).............................................36
CIRCUIT DIAGRAM (POWER) ........................................38
CIRCUIT BOARD (SW)....................................................... 40
CIRCUIT BOARD (SW)....................................................... 42
CIRCUIT DIAGRAM (SW, ENCODER, PIN, INPUT,
PHONES) ..............................................................................44
ERROR MESSAGES............................................................. 46
Copyright © 2004 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 (0500) (AS)17058298E0
Page 2
Dec.2004

CAUTIONARY NOTES

User data status
User data status after each of the following processes is described below.
Whenever carrying out procedures that involve deleting or erasing user data, always be sure to back up the user data to some form of external media (refer to Saving and Loading Data).
Process User Data Checking Version number Preserved Factory Reset Deleted System Update Preserved Test Mode Preserved
* Executing Test Mode during Factory Reset deletes the user data.
PARTS LIST
Due to one or more of the following reasons, parts with parts code ******** cannot be supplied as service parts.
• Part supplied only as a component in a complete assembly
• Copyright does not permit the part to be supplied
• Part is sold commercially
Resolution
Per quarter note: 96
Tempo
Quarter note: 20-260 bpm
Pads
20 with velocity sensitive
Display
Custom LCD with backlight
Connectors
(Rear)
Master Out L (MONO), R (1/4 Phone Type)
Master Out L, R (Phono Type)
Individual A, B (1/4 Phone Type)
Digital Out (coaxial)
CTL 1,2 (TRS 1/4 Phone Type)
CTL 3,4/EXP PEDAL (TRS 1/4 Phone Type)
USB
MIDI IN, OUT
AC Adaptor
(Front)
Phones (Stereo 1/4 Phone Type)
Guitar/Bass Input (1/4 Phone Type)
CIRCUIT BOARD
NIU meant that "NOT IN USE " there don't set any contents in the Circuit
Diagram.
There has silk-screen only in the Circuit Board.

SPECIFICATIONS

Specifications
DR-880: Dr.Rhythm
Maximum Polyphony
32 voices
* Depending on the bass tone used, maximum polyphony may be lower.
Instruments
Drum: 440
Bass: 40
Kits
Preset: 100
User: 100
Patterns
Preset: 500
User: 500
Songs
User: 100
Power Supply
AC Adaptor (BRC series)
Power Consumption
600 mA (Max.)
Dimensions
273 (W) x 242 (D) x 72 (H) mm
10-3/4 (W) x 9-9/16 (D) x 2-7/8 (H) inches
Weight
1.4 kg / 3 lbs 2 oz (excluding AC adaptor)
Accessories
AC Adaptor 100V (#G2457143)
120V (#G2457144)
230V (#G245714101)
240V (#G2457142)
Owners Manual English (#G6017380)
Japanese (#G6017379)
DR-880 Driver CD-ROM (#G2567133)
Roland Service (Information sheet) (#********)
Options
Foot Switch (FS-5U)
Dual Foot Switch (FS-6)
Expression Pedal (Roland EV-5)
Foot Switch Cable (Roland PCS-31)
(stereo 1/4 phone plug-1/4 phone plug x 2)
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.
Maximum Note Storage
Approx. 30,000 notes
* This may be smaller than this depending on the contents of created pattern and
song.
2
Page 3

LOCATION OF CONTROLS

fig.DR-880-Panel.eps
5
28
29
DR-880
30
33
11
27
6
31
32
13
4
38
3
36
2
37
1
10
34
34
35
31
34

LOCATION OF CONTROLS PARTS LIST

No. PART CODE CATEGORY PART NAME DESCRIPTION Q'TY 1 F2477101 KNOB,BUTTON DR-KNOB 1 2 22480260 KNOB,BUTTON P R-KNOB MF BLK/LCG 1 3 01340412 KNOB,BUTTON P R-KNOB SF-A BLK/LCG 3 4 G2567158 CASING DISPLAY COVER 1 5 F2367103 MISCELLANEOUS CORD HOOK 1 6 12499175 KNOB,BUTTON BUTTON JSPUE001A 1 10 G2497004 KNOB,BUTTON SW SHEET ASSY 1 11 78E173C000 CASING TOP CASE 1 13 F5029416 DISPLAY UNIT LCD HG1306C-SYL-2 1 27 13449728 JACK,EXT TERMINAL ADAPTOR JACK HEC0740-010010 1 28 F3439216 JACK,EXT TERMINAL USB JACK YKF45-0021 1 29 13429825 JACK,EXT TERMINAL MIDI CONNECTOR YKF51-5054 2PZ 1 30 F3439217 JACK,EXT TERMINAL PIN JACK YKC21-3486 1 31 F3449120 JACK,EXT TERMINAL 6.5MM JACK HTJ-064-10D 3 32 F3449106 JACK,EXT TERMINAL JACK HTJ064-10I 5 33 13449650 JACK,EXT TERMINAL PIN JACK YKC21-3045 (DUAL) 1 34 F5339405 DIODE LED KP-1608SRC-PRV 8 35 F5339406 DIODE LED KP-1608MGC 2 36 F3229155 POTENTIOMETER VOLUME RV110-40E1-15A-B50K 3 37 F3229156 POTENTIOMETER VOLUME RV142A-40E1-15A-A50K 1 38 01905467 ENCODER ROTARY ENCODER EVE GC1 F20 24B 1
32
3
Page 4
Dec.2004

EXPLODED VIEW 1

fig.explo1.eps

EXPLODED VIEW 1 PARTS LIST

[PARTS]
No. PART CODE PART NAME DESCRIPTION Q'TY 1 F2477101 DR-KNOB 1 2 22480260 P R-KNOB MF BLK/LCG 1 3 01340412 P R-KNOB SF-A BLK/LCG 3 4 G2567158 DISPLAY COVER 1 5 F2367103 CORD HOOK 1 6 12499175 BUTTON JSPUE001A 1
[SCREWS]
No. PART CODE PART NAME DESCRIPTION Q'TY a ********** M9 NUT 1 b ********** M9 WASHER 1 c H5029343 SCREW S-TITE 3X12 BZC 1 d H5029331 SCREW 3X8 BINDING S-TIGHT FEBZC 4 e H5029330 SCREW M3X8 BINDING P-TIGHT BZC 19
4
Page 5

EXPLODED VIEW 2

fig.explo2.eps
DR-880

EXPLODED VIEW 2 PARTS LIST

[PARTS]
No. PART CODE PART NAME DESCRIPTION Q'TY 16 G2357132 FOOT S20 T4 4 17 G2017197 BOTTOM CASE 1 18 G2177303 LEAF M 2 19 ********** INPUT BOARD (included with SW SHEET ASSY) 1 20 ********** HEADPHONES BOARD (included with SW SHEET ASSY) 1 21 78E173M000 MAIN SHEET ASSY 1 24 F3477006 WIRING BNCD-P=1.25-K-22-130 1 25 F3477008 WIRING WIRING INPUT BOARD 1 26 F3477010 WIRING WIRING PHONES BOARD 1 40 F3477007 WIRING BNCD-P=1.00-K-20-140 1 41 G2357117 FOOT T=4MM 15MMX30MM 1
[SCREWS]
No. PART CODE PART NAME DESCRIPTION Q'TY e H5029330 SCREW M3X8 BINDING P-TIGHT BZC 19 g H5029332 SCREW 3X6 BINDING S-TIGHT FEBZC 3
5
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Dec.2004

EXPLODED VIEW 3

fig.explo3.eps

EXPLODED VIEW 3 PARTS LIST

[PARTS]
No. PART CODE PART NAME DESCRIPTION Q'TY 11 78E173C000 TOP CASE 1 12 ********** ENCODER BOARD (included with SW SHEET ASSY) 1 13 F5029416 LCD HG1306C-SYL-2 1 14 ********** VR BOARD ASSY (included with MAIN SHEET ASSY) 1 15 G1147703 REAR PLATE 1 22 F3477009 WIRING WIRING PIN JACK BOARD 1 23 F3477011 WIRING WIRING VR BOARD 1 41 F3477012 WIRING WIRING LCD BACK LIGHT 1 42 ******** PIN JACK BOARD (included with SW SHEET ASSY) 1
[SCREWS]
No. PART CODE PART NAME DESCRIPTION Q'TY e H5029330 SCREW M3X8 BINDING P-TIGHT BZC 11 f H5019431 SCREW P-TITE 3X6 ZC 18
6
Page 7

EXPLODED VIEW 4

fig.explo4.eps
DR-880

EXPLODED VIEW 4 PARTS LIST

[PARTS]
No. PART CODE PART NAME DESCRIPTION Q'TY 7 G2177302 LEAF L 1 8 G2257317 INSULATING SHEET 1 9 78E173S000 SW SHEET ASSY 1 10 G2497004 RUBBER SW 1 11 78E173C000 TOP CASE 1 39 F2449236 FERRITE CORE FS0C320RT01 1
[SCREWS]
No. PART CODE PART NAME DESCRIPTION Q'TY f H5019431 SCREW P-TITE 3X6 ZC 18
7
Page 8
Dec.2004

TAPE for fixed wring

fig.tape-e.eps
TAPE SIZE
2.0cm
Fixed by Tape
3.5cm
TAPE: 40122645 NITTO FILAMENT TAPE #3883 W19MM 50M 60P (CM)
8
Page 9

LOCATION TO PASTE of FOOT (Inside of Bottom)

fig.bottom-e.eps
Figure for Location to paste.
G2357117 FOOT T=4MM 15X30MM
113mm
DR-880
81mm
0
0
Completion drawing.
139mm
123mm
9
Page 10
Dec.2004

WIRING DIAGRAM

fig.wiring.eps
PIN JACK BOARD
ENCODER BOARD
WIRING ENCODER BOARD
CN2
INPUT BOARD
1
CN5
CN11
CN8
WIRING INPUT BOARD
CN11
WIRING PIN JACK BOARD
CN7
7
CN3
MAIN SHEET ASSY
8
2
BNCD-P=
1.00-K-20-140
3
CN1
CN2
4 5 6
BNCD-P=
1.25-K-22-130
CN1
CN4
WIRING VOLUME BOARD
CN12
CN6
WIRING PHONES BOARD
CN10
HEADPHONES
LCD UNIT
SW SHEET ASSY
VOLUME BOARD
BOARD

WIRING DIAGRAM PARTS LIST

NO PART CODE PART NAME DESCRIPTION Q'TY 1 F3477013 WIRING WIRING ENCODER BOARD 1 2 F3477008 WIRING WIRING INPUT BOARD 1 3 F3477007 WIRING BNCD-P=1.00-K-20-140 1 4 F3477006 WIRING BNCD-P=1.25-K-22-130 1 5 F3477011 WIRING WIRING VR BOARD 1 6 F3477010 WIRING WIRING PHONES BOARD 1 7 F3477009 WIRING WIRING PIN JACK BOARD 1 8 F3477012 WIRING WIRING LCD BACK LIGHT 1
10
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DR-880
11
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Dec.2004

PARTS LIST

fig.part1e
SAFETY PRECAUTIONS:
The parts marked have safety-related characteristics. Use only listed parts for replacement.
NOTE: The parts marked # are new. (initial parts)
CASING
# G2017197 BOTTOM CASE 1 # G2567158 DISPLAY COVER 1 # G1147703 REAR PLATE 1 # 78E173C000 TOP CASE 1
KNOB,BUTTON
01340412 P R-KNOB SF-A BLK/LCG 3 22480260 P R-KNOB MF BLK/LCG 1 12499175 BUTTON JSPUE001A POWER SW KNOB 1 F2477101 DR-KNOB 1 # G2497004 RUBBER SW SW BOARD 1
SWITCH
# F3129307 PUSH SWITCH SDKLA1-B SW1 1
JACK,EXT TERMINAL
13429825 MIDI CONNECTOR YKF51-5054 2PZ JK2 1 # F3439216 USB JACK YKF45-0021 JK1 1 # F3439217 PIN JACK YKC21-3486 JK3, JK11 1 13449650 PIN JACK YKC21-3045 (DUAL) JK1 1 F3449106 JACK HTJ064-10I JK6,JK7,JK8,JK9, JK10 5 F3449120 6.5MM JACK HTJ-064-10D JK4,JK5 3 13449728 ADAPTOR JACK HEC0740-010010 JK12 1 G2147118 AC JACK HOLDER JK12 1 # G2147820 JACK HOLDER JK4-9 1
Due to one or more of the following reasons, parts with parts code ******** cannot be supplied as service parts.
• Part supplied only as a component in a complete assembly
• Copyright does not permit the part to be supplied
• Part is sold commercially
The description "Q'TY" means a necessary number of the parts per one product.
DISPLAY UNIT
# F5029416 HG1306C-SYL-2 LCD 1
PWB ASSY
# F2927025 MAIN SHEET ASSY 1
# F2927026 SW SHEET ASSY 1
IC
F5199108 NJM2374AM-TE1 IC(SWITING REGULATOR) IC26 1 # F5179609 MR27V12800J IC P2ROM(WAVE) IC9 1 02900978 M66291GP IC (USB CONTROLLER) IC4 1 F5279861 M12L16161A-7T IC (SDRAM) IC6 1 # F5209173 S-80930CNMC-G80 IC (RESET) IC16 1 # F5199524 UPC29M33AT IC (REGULATOR) IC27 1 # F5229704 PC400T IC (PHOTO COUPLER) IC5 1 F5289102 NJM2100M 8P SOP IC (OP.AMP) IC21 1 # F5289140 M5238AFP-600C IC (OP AMP) IC25 1 F5289139 NJM45564M-TE1 IC (OP AMP) IC19 1 F5279309 BU2090F-E2 IC (LED DRIVER) IC1 1 # ******** MBM29DL164BE-70 IC (FLASH MEMORY) IC13 1 02231767 RA0A-101 (TC223C080AF-101) IC (DSP) IC10 1 03347056 LC32V4265CT-25-TLM-E IC (DRAM) IC12 1 03676990 AK4386VTP-E2 IC (DA) IC23 1
NOTE:MAIN SHEET ASSY includes the follwing parts. ******** VR BOARD ASSY 1
NOTE:SW SHEET ASSY includes the following parts. ******** ENCORDER BOARD ASSY 1 ******** INPUT BOARD ASSY 1 ******** HEADPHONES BOARD ASSY 1 ******** PIN JACK BOARD ASSY 1
12
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DR-880
IC
02677490 RA0C-003XP7TC203C180AF003 IC (CUSTOM) IC8 1 # 03676856 # F5249108 TC74VHC245FT IC (CMOS) IC2,IC25 2 # F5279314 TC7S04FU IC (CMOS) IC17 1 # F5279315 TC7SH32FU IC (CMOS) IC15,IC28 2 # F5279316 TC7W04FU IC (CMOS) IC7 1 15189261 M5218AFP-600E IC (BIPOLAR OP AMP) IC14,IC20,IC24 3 02900812 AK4353VFP-E2 IC (AD/DA) IC18 1 02451434 AK4552VT IC (AD/DA) IC22 1
TRANSISTOR
F5309115 2SA1241-Y TRANSISTOR Q11 1 15319104 2SA1586-GR(TE85R) TRANSISTOR Q9 1 F5309602 2SB1182 TRANSISTOR Q13 1 15319101 2SC2412KR T146 TRANSISTOR Q10 1 F5319602 2SD1758 TRANSISTOR Q12 1 # F5329529 RN1441 TRANSISTOR Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q14,Q15 10 15329103 2SK880GR-TE85R FET Q1 1
DIODE
15019525 RD-5.6EB-2 ZENER DIODE D12 1 # F5339318 RD13ESAB2 ZENER DIODE D9,D10 2 # F5339406 KP-1608MGC LED LED1,LED2 2 # F5339405 KP-1608SRC-PRV LED LED4,LED5,LED7,LED9,LED11,LED15,LE
# F5339165 DA204U DIODE ARRAY DA1,DA2,DA3,DA4,DA5,DA6,DA7,DA28 8 # F5339163 DAP202U DIODE ARRAY DA1,DA2,DA3,DA4,DA5,DA6,DA7,DA8,D
F5019203 1N4004 DIODE D6,D8,D11 3 15339119 1SS-352 DIODE D1,D2,D3,D4,D5 5 F5339137 SS14 VF=0.45V DIODE D7 1
UPD703106AGJ-086-UEN (BG324 M)
IC (CPU) IC11 1
D16,LED17
A9,DA10,DA11,DA12,DA13,DA14,DA15,D A16,DA17,DA18,DA19,DA20,DA21,DA22, DA23,DA24,DA25,DA26,DA27
8
27
RESISTOR
F5399115 100 J RESISTOR R27,R28,R16,R60 4 F5399145 12K J RESISTOR R164,R165 2 F5399917 22 (1/2W) RESISTOR R20,R93,R109 3 F5399111 22 J RESISTOR R22 1 F5429346 3.3KF 1% RESISTOR R152 1 F5399157 39K J RESISTOR R124,131 2 F5399133 4.7K J RESISTOR R63,R64,R66,R67,R68,R74,R75,R80,R81,R82 10 F5399195 470K J RESISTOR R36,R59,R72,R140 4 F5399158 47K J RESISTOR R138 1 F5399914 6.8KF RESISTOR R96 1 F5399116 82K J RESISTOR R15 1 F5429386 150K F (1608TYPE) MTL.FILM.RESISTOR R107 1 # F5399713 0.56(1/2W) MTL.FILM RESISTOR R147 1 F5399129 1.5K J MTL.FILM RESISTOR R5,R14,R153,R154 4 F5399104 10 J MTL.FILM RESISTOR R31,R65,R92,R5,R6 5 F5399170 100K J MTL.FILM RESISTOR R13,R37,R52,R53,R55,R56,R70,R73,R79,R89,
R90,R95,R101,R108,R117,R119,R123,R127,R 128,R130,R134,R135,R136,R162,R163,R167,
R168 # F5419770 100KX4 MTL.FILM RESISTOR RA18,RA19 2 # F5419758 100X4 MTL.FILM RESISTOR RA3,RA6,RA7 3 F5399140 10K J MTL.FILM RESISTOR R1,R4,R7,R8,R10,R17,R21,R23,R24,R25,R29,
R30,R43,R51,R54,R57,R58,R100,R102,R120,
R121,R137,R139,R300 F5429365 10K OHM F RANK (1%) MTL.FILM RESISTOR R110 1 # F5419759 10KX4 MTL.FILM RESISTOR RA22,RA23,RA25,RA26,RA28 5 # F5399121 180 MTL.FILM RESISTOR R8,R9,R11,R13 4 F5399128 1K J MTL.FILM RESISTOR R76,R78,R84,R86,R91,R99,R112,R116,R125,
R126,R132,R133,R141,R148 F5399200 1M J MTL.FILM RESISTOR R26,R32,R145 3 F5399130 2.2K J MTL.FILM RESISTOR R150 1 F5399190 220K J MTL.FILM RESISTOR R1,R3 2 F5399152 22K J MTL.FILM RESISTOR R97,R114 2 # F5399295 27 MTL.FILM RESISTOR R9,R6 2 # F5399132 3.3K MTL.FILM RESISTOR R35 1 # F5419768 4.7KX4 MTL.FILM RESISTOR RA30 1 # F5399962 43(1/2W) MTL.FILM RESISTOR R69,R71,R155 3 F5399106 47 J MTL.FILM RESISTOR R41,R42,R44,R45,R46,R47,R48,R49,R50,R15
9,R160 # F5399961 470K(1/2W) MTL.FILM RESISTOR R161 1 # F5419763 47X4 MTL.FILM RESISTOR RA12,RA13,RA15,RA17,RA36 5 F5399134 6.8K J MTL.FILM RESISTOR R33,R38,R40 3 F5399109 68 MTL.FILM RESISTOR R15,R19,R20,R21 4
27
28
15
11
13
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Dec.2004
RESISTOR
# F5419769 68X4 MTL.FILM RESISTOR RA20,RA21,RA24,RA27,RA29,RA31,RA32,
# F5399107 75 MTL.FILM RESISTOR R62 1 # F5399138 8.2K MTL.FILM RESISTOR R118 1 F5429350 562 F 1608 1/10W 5.6K OHM MTL. FILM RESISTOR R151 1 F5429375 47K OHM F RANK (1%) CHIP RESISTOR R103 1 # F3749774 0 CARBON RESISTOR C64 1
POTENTIOMETER
# F3229155 RV110-40E1-15A-B50K VOLUME VR1,VR2,VR3 3 # F3229156 RV142A-40E1-15A-A50K VOLUME VR4 1
CAPACITOR
# F3587451 ERZVA7V330 VARISTOR CAPACITOR C184 1 02341489 ECPU1C474MA5 # F3629696 2.2/50 CHEMICAL CAPACITOR C234 1 F5359732 GRM39B102J50PT CHIP CAPACITOR (1608 TYPE) C75,C76,C77,C78,C101,C130 6 F5359780 GRM39B103K50PT CHIP CAPACITOR (1608 TYPE) C4,C5,C7,C8,C13,C224 6 F5359803 GRM39CH151J50PT CHIP CAPACITOR (1608 TYPE) C70,C81,C82,C83,C186,C2 6 F5359800 GRM39F104Z25PT CHIP CAPACITOR (1608 TYPE) C11,C15,C16,C17,C18,C19,C20,C22,C23,C24
F5359804 GRM39CH221J50PT220P J CHIP CAPACITOR (1608 TYPE) C105 1 # F3639181 1000/35 CHEMICAL CAPACITOR C187,C195 2 13639550KM 100UF/16V CHEMICAL CAPACITOR C124,C127,C138,C189,C192,C193,C194,C1978
# F3629698 4.7/50 CHEMICAL CAPACITOR C167 1 # F3639554 470/16 CHEMICAL CAPACITOR C120,C141,C174,C183 4 # 13639139 470/35 CHEMICAL CAPACITOR C185 1 # F5359827 68P CHEMICAL CAPACITOR C235,C236,C237,C238,C239,C240,C241,C24
13639549 ECA1CM470B CHEMICAL CAPACITOR C63,C129,C144,C153,C176,C199,C201 7 13639602 ECEA1HM010B 1UF/50V CHEMICAL CAPACITOR C71,C146 2 # F5359809 0.0047 CERAMIC CAPACITOR C86,C87,C1 3 F535970601 10P CERAMIC CAPACITOR C84,C85,C115,C131,C133,C134,C157,C168,
# F5359707 15P CERAMIC CAPACITOR C51,C52 2 F3629692 0.22/50V CAPACITOR C69 1 F3629678TS 10/16V CAPACITOR C2,C3,C12,C14,C27,C59,C62,C68,C73,C99,C
13639944TS ECEA1HN100S CAPACITOR C253 1
MYLAR CAPACITOR(SUBMICRON)
RA33,RA34,RA35
C180 1
,C25,C26,C28,C29,C30,C31,C32,C33,C34,C3
5,C36,C37,C38,C39,C40,C41,C42,C43,C44,C
45,C46,C47,C48,C49,C50,C53,C54,C55,C56,
C57,C58,C60,C61,C65,C66,C67,C72,C74,C79
,C80,C88,C89,C90,C91,C92,C93,C94,C95,C9
6,C97,C98,C100,C102,C104,C107,C108,C111
,C123,C125,C147,C149,C150,C152,C154,C15
6,C159,C165,C175,C177,C188,C190,C191,C1
96,C198,C200,C202,C203,C204,C205,C206,C
215,C216,C217,C218,C219,C220,C221,C222,
C223,C228,C230,C231,C232,C233,C249,C25
0,C251,C252,C3,C181,C182,C183,C5,C6
2,C243,C244,C245,C246,C247
C207,C208,C211,C212,C213,C214
103,C106,C109,C112,C113,C117,C119,C121,
C122,C126,C135,C137,C139,C140,C142,C14
3,C151,C155,C158,C161,C162,C163,C166,C1
70,C171,C172,C248,C254,C255
10
114
13
14
39
INDUCTOR, COIL, FILTER
02563501 PT-10 (2280-T008) PULSE TRANS FL1 1 F2569127 MINISMDC075 POLY SWITCH R149 1 F5409102 N1608Z601T02 FERRITE-BEAD L6,L7,L8,L9,L10,19,L20,L21,L22,L23,L29,L3
0,L31,L32,L33,L34,L23,L24,L25,L26,L27 13529246 DSS310-91D223S-50ATL12-134 EMI FILTER FL4,FL2 2 12449386 SBT-0180W EMI FILTER L13 1 # F2449234 TSL1112-471KR72 CHOKE COIL L28 1 # F2449233 ZCYS51R5-M3PAT CHOKE COIL L3 1
CRYSTAL, RESONATOR
F5299114 HC-49SM 5MHZ CRYSTAL X3 1 # F5299315 HC-49SM(6MHZ) CRYSTAL X1 1 02672401 SG-8002JC 67.7376MHZ PC CRYSTAL X2 1
ENCODER
01905467 EVE GC1 F20 24B ROTARY ENCODER EN1 1
CONNECTOR
# F3439220 20FMN-BTK-A CONNECTOR CN1 1 # F3439224 22FE-BT-VK-N CONNECTOR CN2 1 # F3439223 22FE-ST-VK-N CONNECTOR CN1 1
14
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DR-880
CONNECTOR
F3439158 A2001WV2-10P P=2MM CONNECTOR CN4 1 # F3439222 A2001WV2-3P CONNECTOR CN6,CN7,CN11 3 # F3439221 A2001WV2-4P CONNECTOR CN5,CN8 2
WIRING, CABLE
# F3477011 WIRING WIRING VR BOARD CN12 1 # F3477009 WIRING WIRING PIN JACK BOARD CN3 1 # F3477010 WIRING WIRING PHONES BOARD CN10 1 # F3477012 WIRING WIRING LCD BACK LIGHT CN11 1 # F3477008 WIRING WIRING INPUT BOARD CN11 1 # F3477013 WIRING WIRING ENCODER BOARD CN2 1 # F3477006 WIRING BNCD-P=1.25-K-22-130 MAIN - SW 1 # F3477007 WIRING BNCD-P=1.00-K-20-140 MAIN - LCD 1
PICK UP SENSOR
# F2959115 PIEZO PICKUP DB-E648 PIEZO1 1
SCREWS
# H5029343 SCREW S-TITE 3X12 BZC 1 # H5019431 SCREW P-TITE 3X6 ZC 18 H5029330 SCREW M3X8 BINDING P-TIGHT BZC 11 H5029332 SCREW 3X6 BINDING S-TIGHT FEBZC 3 H5029331 SCREW 3X8 BINDING S-TIGHT FEBZC 4 H5019803 SCREW 3X8 BINDING P-TIGHT FECM 11
PACKING
# G2267505 PAD SIDE PAD R 1 # G2267504 PAD SIDE PAD L 1 # G2267515 PAD PAD2 1 # G2267514 PAD PAD1 1 # G2267403 PAD CD PAD 1 # G2617301 OUTER PACKING CASE 1 # G2267405 OUTER SHEET 1 # G2607114 PACKING CASE 1
MISCELLANEOUS
# F2449236 FERRITE CORE FS0C320RT01 1 F2367103 CORD HOOK 1 # G2257317 INSULATING SHEET 1 G2257203 JACK COVER INPUT BOARD JK10 1 # G2177303 LEAF M 2 G2177302 LEAF L 1 # G2357132 FOOT S20 T4 4
ACCESSORIES (Standard)
# G6017379 OWNERS MANUAL JAPANESE 1
40232389 WARRANTY CARD FOR BOSS JAPAN ONLY 1 00905234 EURO CONVERTER PLUG ECP01-5A 1 # G2457142 AC ADAPTOR BRC-240T 1 G245714101 AC ADAPTOR BRC-230T 1 G2457144 AC ADAPTOR BRC-120T 1 # G2457143 AC ADAPTOR BRC-100T 1 ******** RESISTRATION CARD (117V ONLY) 1 # G2567133 SOFTWARE CD-ROM 1
G2357117 FOOT T=4MM 15MMX30MM 1 40122645 NITTO FILAMENT TAPE #3883 W19MM 50MM 60P(CM) 1
G6017380 OWNERS MANUAL ENGLISH 1
15
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Dec.2004

CHECKING THE VERSION NUMBER

While holding down the [RESET][RWD] and [FWD] buttons, power-on the DR-880.
fig.1version.eps
The version of CPU and FLASH MOMORY will appear .

Computer to DR-880 connection

In order to allow MIDI communication between the DR-880 and your computer, you must first install the USB MIDI driver.
fig.09-030
(Ex.)
BOSS_DR-880
Removable Disk (*:)
5. Double-click the BOSS_DR-880 (or Removable disk (*:)) icon.
The files from the DR-880 will be displayed on the computer.
File name Contents SYSTEM.DR8 System settings UGFX.DR8 Guitar effects user patches UKIT.DR8 User kits USEQ.DR8 User patterns and user songs UTSC.DR8 TSC user patches
6. Copy the files to be backed up into a backup folder on your computer.
It is good practice to create a new folder for the storage of backup data.
7. Close the USB connection.
Windows XP users
Right-click the BOSS_DR-880 icon (or the Removable disk (*:) icon) in My Computer, and execute Remove.
If you are unable to execute the Remove operation in this way, proceed as follows.
1) Click theicon in the task tray, and click the message that indicates Safely remove drive (*:).
fig.09-200
* The USB MIDI driver is included on the CD-ROM "DR-880 Driver."

USERS DATA SAVE AND LOAD

Backing up the DR-880’s data
Windows users
1. Use a USB cable to connect the DR-880 to your computer.
2. With playback stopped, press [EDIT].
The edit menu screen appears.
3. Move the cursor to the USB icon and press [ENTER].
The USB menu screen appears.
4. Move the cursor to the BACKUP icon and press [ENTER].
The USB backup screen appears.
If USB Mode is set to MIDI, the message Check USB Mode! is displayed, and the SMF Backup screen will not appear. Press [ENTER], and change the USB Mode to STORAGE, and then power it up again (p. 134).
fig.09-210d
Task bar
2) In the Safely Remove Hardware dialog box, click [OK].
Task tray
Windows 2000/Me users
1) Right-click the BOSS_DR-880 icon (or the Removable disk (*:) icon) in My Computer, and execute Remove.
2) Click theicon in the task tray, and click the message that indicates Safely remove drive (*:).
fig.09-200
Task bar
3) In the Safely Remove Hardware dialog box, click [OK].
8. Press [EXIT].
At this point, you can safely disconnect the USB cable from the DR-880 and the computer.
If you press [EXIT] without performing step 7, the message Disconnect, OK? is displayed.
In this case, press [EXIT] and then perform step 7.
If you press [ENTER], the connection between the DR-880 and the computer will be forcibly terminated. In this case, it is possible that the backup will be incomplete, making successful recovery impossible.
Task tray
If there is any edited data that has not been saved, the Cancel edit? message will appear.
If you press [ENTER], your edits will be discarded, and the unedited data will be backed up.
If you press [EXIT], the backup process will be aborted, and you will return to the USB menu screen.
When connection with the computer has been established, the message will displayed Copy data files.
A BOSS_DR-880 icon (or a Removable disk (*:) icon) will appear on the computer.
16
Page 17
DR-880
Reading backup data back into the DR-880 from the computer (Recover)
Windows users
1. Use a USB cable to connect the DR-880 to your computer.
2. With playback stopped, press [EDIT].
The edit menu screen appears.
3. Move the cursor to the USB icon and press [ENTER].
The USB menu screen appears.
4. Move the cursor to the RECOVER icon and press [ENTER].
The USB recover screen appears.
If USB Mode is set to MIDI, the message Check USB Mode! is displayed, and the SMF Recover screen will not appear. Press [ENTER], and change the USB Mode to STORAGE, and then power it up again (p. 134).
fig.09-220d
When connection with the computer has been established, the message will displayed Copy data files.
A BOSS_DR-880 icon (or a Removable disk (*:) icon) will appear on the computer.
fig.09-030
(Ex.)
BOSS_DR-880
When the backup data have been recovered, the message will disappear.
At this point, you can safely disconnect the USB cable from the DR-880 and the computer.
If you press [EXIT] without performing step 8, the message Disconnect, OK? is displayed.In this case, press [EXIT] and then perform step 8.
If you press [ENTER], the connection between the DR-880 and the computer will be forcibly terminated. In this case, it is possible that the recovery will be incomplete, causing the operation of the DR-880 to later become unstable.

FACTORY RESET INSTRUCTIONS

You can restore the DR-880 to the condition it was in when it left the factory. This operation is called Factory Reset.
When you execute Factory Reset, the user data will return to its factory-set condition. If the DR-880 contains important data you want to keep, use Bulk Dump (p. 131) to save the data on an external MIDI device, or use USB backup (p. 138) to save the data on the computer before you execute Factory Reset.
1. With playback stopped, press [EDIT].
The edit menu screen appears.
2. Move the cursor to the FACTORY RESET icon and press [ENTER].
The display will ask Factory reset?
fig.11-010d
Removable Disk (*:)
5. Open the folder on the computer where you have stored the backup data.
6. Select all of the files you want to back into the DR-880.
7. Copy them to the BOSS_DR-880 icon (or Removable disk (*:) icon) on
the computer.
8. Close the USB connection.
Windows XP users
Right-click the BOSS_DR-880 icon (or the Removable disk (*:) icon) in My Computer, and execute Remove.
If you are unable to execute the Remove operation in this way, proceed as follows.
1) Click theicon in the task tray, and click the message that indicates Safely remove drive (*:).
fig.09-200
Task bar
2) In the Safely Remove Hardware dialog box, click [OK].
Task tray
Windows 2000/Me users
1) Right-click the BOSS_DR-880 icon (or the Removable disk (*:) icon) in My Computer, and execute Remove.
2) Click theicon in the task tray, and click the message that indicates Safely remove drive (*:).
fig.09-200
3. If youre sure you want to execute Factory Reset, press [ENTER]. If you
decide to cancel without executing, press [EXIT].
The message Now writing... will appear, and factory reset will be executed.
When factory reset have been completed, the message will disappear.
* Do not turn off the power while the message is displayed. Your data may be
damaged if you do so.
Task bar
3) In the Safely Remove Hardware dialog box, click [OK].
9. Press [EXIT].
The message Now writing... will appear, and the backup data will be recovered.
Task tray
17
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Dec.2004

SYSTEM SOFTWARE UPDATING INSTRUCTIONS

Required items
* In order to play back the update data, you will need a means to play back SMF
data.
We recommend a computer + UM-2 + UpdSMF.exe (UpdSMFJ.exe).
In the explanation that follows, we assume that you are using a computer + UM-2 + UpdSMF.exe (UpdSMFJ.exe).
1. SMF data for the update CD-ROM (#17041565)
_0000001.mid - _0000021.mid
2. SMF playback system
Computer with USB connector (the UM-2 driver must be installed)
UM-2
UpdSMF.exe (English version) or UpdSMFJ.exe (Japanese version)
3. Adaptor BRC series
4. MIDI cable
Update procedure
* As a precaution, please make a backup of the user data before you continue.
1. Connect the MIDI OUT 1 (or 2) of your MIDI playback system (computer
+ UM-2) to the DR-880s MIDI IN.
2. While holding down [SHIFT] + [EDIT], power-on the DR-880.
fig.system1
Flash-ROM Updater
CPU
1.00 0007 2004/05/13
EXT
1.00 0103 2004/09/27
3. Start up UpdSMF.exe (UpdSMFJ.exe), and make the following settings.
MIDI Out Device =1: EDIROL UM-2 MIDI 1 (or 2)
SMF Path = the directory that contains the update SMF data
4. Click Scan SMF.
Verify that you see the update data (_0000001.mid - _0000021.mid).
5. Click Send.
The update will begin.
* Don’t turn off the power during the update. Doing so may destroy the user
memory.
During the update, the following screens will alternate. The FAVORITE [1]-[4] button LEDs will blink.
fig.system2
Flash-ROM Updater
adrs 0x00******
fig.system4
Flash-ROM Updater
adrs 0x0044FFF0 sum 0x****
Completed. sum(prg1)0x**** sum(prg2)0x****
7. Power-off the DR-880.

TEST MODE

Required items
1. Oscillator
2. Oscilloscope
3. Monitor amp
4. Noise meter
5. Ammeter
6. FS-5U
7. EV-5
8. D/A converter
9. Computer
Supported OS: Windows XP/2000/Me or later
10. MIDI cable
11. USB cable
Preparations for test mode
Oscilloscope settings
TIME/DIV: 1 [msec]
VOLT/DIV: 2 [V]
Oscillator
1. Waveform: square wavefrequency: 200 [Hz], amplitude: 100 [mVp-p]
2. Waveform: sine wavefrequency: 200 [Hz], amplitude: -10 [dBu]
Noise meter
FILTER: JIS-A
FS-5U
Set the POLARITY switch toward the jack.
EV-5
Set the MIN VR to 0
DR-880
GUITAR/BASS INPUT VR = MAX
DRUM VR = MAX
BASS VR = MAX
MASTER VR = MAX
Receiving...
fig.system3
Flash-ROM Updater
adrs 0x00****** sum 0x****
Waiting...
6. When the update is finished, the following display will appear.
Verify the checksum (Prg1, Prg2).
18
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DR-880
Test items
1. Device check
2. LED check
3. SW check
4. LCD and encoder check
5. Piezo check
6. Volume check
7. Foot switch check
8. Expression check
9. MIDI and USB check
10. Output D/A check
11. AF Gain check
12. Input A/D check
Entering test mode
While holding down the [KIT] and [DISPLAY] buttons, power-on the DR-880. If the unit is operating correctly, the following display will appear.
fig.devicecheck0.eps
2. LED check
fig.ledcheck1.eps
Verify that all LEDs are lit.
Lit button LED color
1. EFFECT red: 1
2. LOOP red: 1
3. PLAY green: 2
4. REC red: 1
5. FAVORITE 1 red: 1
6. FAVORITE 2 red: 1
7. FAVORITE 3 red: 1
8. FAVORITE 4 red: 1
9. TSC red: 1
fig.ledcheck2.eps
fig.devicecheck1.eps
Press [ENTER] to begin the first test; 1. Device check.
Press [BANK] to proceed to the next test item. Hold down [SHIFT] and press [FAVORITE 1] to return to the preceding test item.
1. Device check
Press [FAVORITE 1] to begin the SDRAM check. Verify that a result of
OK appears.
Press [FAVORITE 2] to begin the FLASH check. Verify that a result of OK
appears.
Press [FAVORITE 3] to begin the ESP check. Verify that a result of OK
appears.
Press [FAVORITE 4] to begin the XP check. Verify that a result of OK
appears.
Press [BANK] to proceed to the next test item.
Note any inconsistency in the brightness of the left and right green LEDs.
Note any inconsistency in the brightness of the various red LEDs.
LED/LCD shock test
Drop the rear edge of the unit (marked [] in the illustration) three times from a height of 5 cm. Then drop the front edge of the unit (marked O in the illustration) three times from a height of 5 cm. Verify that the LEDs do not go dark, and that there is no change in the LCD display.
fig.ledcheck3.eps
Press [BANK] to proceed to the next test item.
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Dec.2004
3. SW and LED check
fig.swcheck1.eps
Press the switch whose name is displayed.
For switches that have a lit LED, verify that the LED goes dark when you press the switch.
fig.swcheck2.eps
4. LCD and Encoder check
fig.lcdencordercheck1.eps
4-1. Adjusting the LCD contrast
Verify that there is no crosstalk in the background and is no unevenness in the contrast.
If there is a no problem with the contrast.
-> Use [BANK] to proceed to the next test item
If there is a problem with the contrast.
->Make this adjustment, please refer to followings.
Turn the encoder counter-clockwise to lighten the contrast.
Turn the encoder clockwise to darken the contrast.
* The standard setting is "0." It is adjustable in a range from "-4" through "+4".
fig.swcheck3.eps
If you pressed the correct switch.
fig.swcheck4.eps
If you pressed the wrong switch. (Ex. press the KIT)
fig.swcheck5.eps
When you're finished making the setting, press [ENTER]. The display will indicate "Now Writing," and the setting will be written into memory.
Press the [BANK] switch to proceed to the next test item.
4-2. Slowly turn [VALUE] clockwise for three clicks.
fig.lcdencordercheck2.eps
Verify that the display changes from 0 -> 1 -> 2 -> 3, and that the contrast below the characters darkens.
Verify that the characters can still be read even when the contrast is darkest (third click).
4-3. Slowly turn [VALUE] counter­clockwise for three clicks.
fig.lcdencordercheck3.eps
When all have been completed, press [BANK] to proceed to the next test item.
20
Verify that the display changes from 3 -> 2 -> 1 -> 0, that the contrast below the characters lightens, and that the characters do not disappear.
Press [BANK].
Page 21
DR-880
4-4. PATTERN check
fig.lcdencordercheck4.eps
Check the text encircled in the illustration.
[SONGPATTERN PRESET USER]
Press [BANK].
4-5. PATTERN No. check
fig.lcdencordercheck5.eps
Check the text encircled in the illustration.
[8 8 8]
Press [BANK].
4-6. TEMPO check
fig.lcdencordercheck6.eps
4-8. All Lit check
fig.lcdencordercheck8.eps
Verify that there is no inconsistency, missing characters, gaps, or light patches in the LCD.
Press [BANK].
4-9. All Dark check
fig.lcdencordercheck9.eps
Verify that no display elements are lit.
Press [BANK].
4-10. Checkerboard pattern check
fig.lcdencordercheck10.eps
Check the text encircled in the illustration.
[8 8 8]
Press [BANK].
4-7. KEY check
fig.lcdencordercheck7.eps
Check the text encircled in the illustration.
[8 1 #b m]
Press [BANK].
fig.lcdencordercheck11.eps
Verify that the checkerboard pattern is not distorted.
fig.lcdencordercheck12.eps
Drop the rear edge of the unit (marked [] in the illustration) three times from a height of 5 cm, and verify that there is no abnormality in the display.
Press [BANK] to proceed to the next test item.
21
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Dec.2004
5. Piezo check
fig.piezo.eps
With your finger, lightly strike the pad [RIDE [20, B]] of the DR-880; the
VALUE in the LCD will change.
PEAK will indicate the peak-hold value.
Gradually increase the force of your strikes until PEAK indicates OK.
fig.piezocheck2.eps
Verify that PEAK indicates OK.
Press [BANK] to proceed to the next test item.
6. Volume check
fig.volumecheck4.eps
Set the GUITAR/BASS INPUT VR to the maximum position.
fig.volumecheck5.eps
6-2. Drum VR check
Perform the same test for the DRUM VR. (maximum -> center -> minimum -> maximum)
fig.volumecheck6.eps
6-1. Guitar/bass input VR check
fig.volumecheck1.eps
Set the GUITAR/BASS INPUT VR to the center position.
fig.volumecheck2.eps
The result will be NG if you move any other volume control.
In this case, set all knobs to the maximum position, and then press the [TSC] switch to resume from the GUITAR/BASS INPUT VR check.
fig.volumecheck3.eps
6-3. Bass VR check
Perform the same test as you did for the BASS VR. (maximum -> center -> minimum -> maximum)
fig.volumecheck7.eps
* If desired, you can set all knobs to the maximum position and then press the
[TSC] and resume from the GUITAR/BASS INPUT VR check.
Verify that all VR tests are successfully completed (all OK).
Press [BANK] to proceed to the next test item.
7. Foot Switch check
fig.footswcheck1.eps
Set the GUITAR/BASS INPUT VR to the minimum position.
22
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DR-880
7-1. Press the FS-5U connected to CTL1 of the CTL 1,2 jack.
fig.footswcheck2.eps
Release the FS-5U.
fig.footswcheck3.eps
7-2. Test CTL2 in the same way. (press
-> release)
fig.footswcheck4.eps
fig.exppedalcheck2.eps
Advance the EV-5 pedal to the maximum position (away from yourself).
fig.exppedalcheck3.eps
Slowly return the EV-5 pedal to the minimum position (toward yourself).
fig.exppedalcheck4.eps
7-3. Test CTL3 in the same way. (press
-> release)
fig.footswcheck5.eps
7-4. Test CTL4 in the same way. (press
-> release)
fig.footswcheck6.eps
Verify that all Foot Switch tests produce a result of OK.
Press [BANK] to proceed to the next test item.
8. Exp Pedal check
Connect an EV-5 to the CTL3,4 EXP PEDAL jack.
Start with the expression pedal lowered (minimum position).
fig.exppedalcheck1.eps
The OK result will not appear unless the center position is detected.
Verify that all results return OK.
Press [BANK] to proceed to the next test item.
9. MIDI and USB test
MIDI
1. Use a MIDI cable to create a loop between MIDI OUT and IN.
2. Press [FAVORITE 1].
3. Verify that that MIDI test result is OK.
USB
1. Use a USB cable to connect the DR-880 to your computer.
2. Press [FAVORITE 2].
3. Verify that the USB test result is OK.
fig.midiusbcheck1.eps
Press the [BANK] switch to proceed to the next test item.
Slowly advance the EV-5 pedal (away from yourself).
23
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Dec.2004
10. DSP Thru Waveform check
fig.outputdacheck1.eps
10-1. Check the [MASTER OUTPUT] waveform.
fig.outputdacheck2.eps
10-5. Insert the plug back into [MASTER OUTPUT] R, and check the waveform.
fig.outputdacheck4.eps
10-6. Disconnect the plug from [MASTER OUTPUT] L (MONO), and check the waveform.
fig.outputdacheck5.eps
VOLT/DIV:2V TIME/DIV:1mS
10-2. Slowly turn [MASTER VOLUME] toward the minimum position.
Verify that the square wave shown in the illustration from OUTPUT L/R gradually decreases.
10-3. Slowly turn [MASTER VOLUME] toward the maximum position.
Verify that the square wave shown in the illustration from OUTPUT L/R gradually increases.
* Note: The waveform must not abruptly increase or cut out.
* Note: Misshapen waveforms or waveforms below the nominal level are NG.
10-4. Disconnect the plug from [MASTER OUTPUT] R, and check the waveform.
fig.outputdacheck3.eps
10-7. Insert the plug back into [MASTER OUTPUT] L (MONO), and check the waveform.
fig.outputdacheck6.eps
24
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DR-880
10-8. MUTE circuit check
Use [TSC] to switch between MUTE_OFF <--> ON.
fig.outputdacheck7.eps
10-8-1. Check the MASTER OUTPUT L (MONO)/R” waveform.
fig.outputdacheck8.eps
10-8-2. Check the [MASTER OUTPUT] (PIN) waveform.
fig.outputdacheck10.eps
Amplitude: 1.5--1.9 [Vp-p]
mute off
fig.outputdacheck11.eps
mute off
Amplitude: 4.8--6.0 [Vp-p]
fig.outputdacheck9.eps
mute on
mute on
10-8-3. Check the [INDIVIDUAL] waveform.
fig.outputdacheck12.eps
Amplitude: 1.8--2.3 [Vp-p] mute off
fig.outputdacheck13.eps
mute on
25
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Dec.2004
10-8-4. Check the [PHONES] waveform.
fig.outputdacheck14.eps
Amplitude: 4.9--6.1 [Vp-p] mute off
fig.outputdacheck15.eps
fig.afgaincheck2.eps
Amplitude: 1.3--1.5 [Vp-p]
Press [BANK] to proceed to the next test item.
12. IN-OUT check, Residual Noise check
fig.inputadcheck1.eps
mute on
10-8-5. Check the DIGITAL OUT waveform.
fig.outputdacheck16.eps
Amplitude: 4.0--5.0 [Vp-p]
* It is not necessary to check MUTE.
Press the [BANK] switch to proceed to the next test item.
11. AF Gain check
fig.afgaincheck1.eps
12-1. Check the MASTER OUT L (MONO)/R waveform.
Input a sine wave (200 Hz, -10 dBm) from the GUITAR/BASS INPUT.
On your oscilloscope, set VOLT/DIV to 5 [V].
Check the sine wave that is output from MASTER OUT L (MONO)/R.
fig.inputadcheck2.eps
VOLT/DIV:5V TIME/DIV:1mS
Amplitude: 9.0--12 [Vp-p]
If distortion is visible in the waveform, the result is NG.
Remove the plug from the GUITAR/BASS INPUT.
fig.inputadcheck3.eps
Input a square wave (200 Hz, 100 mVp-p) from the GUITAR/BASS INPUT.
Check the square wave that is output from MASTER OUT L (MONO)/R.
26
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12-2. Check the residual noise of MASTER OUT L (MONO)/R.
Listen to the noise, and verify the following.
1. Noise level: -73 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-3. Check the residual noise of MASTER OUT (PIN).
Listen to the noise, and verify the following.
1. Noise level: -82 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-4. Check the residual noise of INDIVIDUAL.
Listen to the noise, and verify the following.
1. Noise level: -77.5 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
DR-880
12-5. Check the residual noise of PHONES.
Listen to the noise, and verify the following.
1. Noise level: -72 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-6. Check the residual noise of MASTER OUT L (MONO)/R at the Hi­Gain setting. (INPUT residual noise check)
Press [BANK] to select Hi-Gain.
fig.inputadcheck4.eps
Listen to the noise, and verify the following.
1. Noise level: -70 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
13. Turn off the power.
27
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Dec.2004 DR-880

BLOCK DIAGRAM

fig.block.eps
JK4
USB Controller IC
(MIDI or STRAGE)
MIDI IN
MIDI OUT
SW BOA
RD
ASSY
LCD
LCD BACK LIGHT
LED
VOLUM
E
LCD DRIVER
LED DRI
VER
CPU
UPD703106(V8 50 MA1)
FLASH MEMORY(16M)
DRAM(4M/WO
XP7
TC203C180AF
4
ESP
TC223C080AF-101
DRAM(
4M)
RKING)
CLOCK OUTSYNC
A3.3 V
MASK ROM
(WAVE 128M)
DAC/DIT
CODEC
D3.3 V
A+12V
OUTPUT
VOLUM
AF-AD
E
2 3 1
JK5
2 3 1
D
FOOT SW
FOOT SW 3.4 / EXP PEDA
L
2
1
D 12
22
11
A
2 4 1
2 4 1
A
2 3 1
A
2 3 1
2 3 1
A
2 4 1
A
1.2
JK3
DIGITAL OUT
JK1 A
OUTPUT L( MONO)
JK1 B
OUTPUT R
JK6
OUTPUT L( MONO)
JK7
OUTPUT R
JK11
PHONES
JK8
INDIVIDUAL A
JK9
INDIVIDUAL B
JK10
GUITAR IN
A-1 2V
POWER
SW1A
12
SW
11 13
JK12 2 1 3
BRC ADAPTOR
AC 14 V
29
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Dec.2004 DR-880

CIRCUIT BOARD (MAIN BOARD)

fig.b-main1.eps
View from components side
31
Page 30
Dec.2004 DR-880

CIRCUIT BOARD (MAIN BOARD)

fig.b-main2.eps
View from foil side
33
Page 31
Dec.2004 DR-880

CIRCUIT DIAGRAM (MAIN, VOLUME)

fig.c-digital.eps
USB
JK1 YKF45-0021
123
4
10
20
L6
N1608Z601T01 14 12 15
L7
N1608Z601T01
L8
N1608Z601T01 24 22 25
L10
N1608Z601T01
D
6
2 5
4
IC3 N.I.U (SN65220)
D
R13 100k
D
MIDI
JK2 YKF51-5054
45
2
INOUT
45
2
304050
60
To SW BOARD
+
D3.3
2+1
L23 N1608Z601T01
CN2 22FE-BT-VK-N
22 21 20 19 18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
A
L33 N1608Z601T01
22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C79
0.1
C205
0.1
SW_DATA7
SW_DATA6 SW_DATA5 SW_DATA4 SW_DATA3 SW_DATA2 SW_DATA1 SW_DATA0
LED_DATA LED_CLOCK
D
A
C71 1/50
2+1
84
-
+
IC14C M5218AFP
CN4 A2001WV2-10P
2-1
To VOLUME BOARD
L1 N.I.U
L2 N.I.U
1
NC
A
GND GND
NC3B
C9 N.I.U
C21 N.I.U
R20
+
D3.3
22(1/2W)
L9 N1608Z601T01
D
C218
C216
0.1
0.1 C219
C217
0.1
0.1
To Flash Writer
R33
6.8k
R38
6.8k
R40
6.8k 6
5
A
+
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
A
C220
0.1 C221
0.1
1 2
1 2
R32 1M
2
-
3
+
A
-
+
IC14B M5218AFP
C229 N.I.U
C10 N.I.U
R15 120
R16 100
D
1 8 2 7 3 6 4 5 1 8 2 7 3 6 4 5
C222
0.1
1
IC14A M5218AFP
R35
3.3k
3
7
VROUT_R VRIN_R VRIN_L VROUT_L
D13 N.I.U
DD
R22 22
RA12 47x4
RA13 47x4
D12 RD5.6EB2
1 2
21
L3
3 4 2 5 1 6
L4 N.I.U
D1 1SS352
1 2
D2 1SS352
R42 47
134
DA1 DA204U
D
RA18 100kx4
DA3 DA204U
R44 47
C81 150p
To ENCODER BOARD
+
D3.3
6
IC5 PC400T
3
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
19
G
1
DIR
C206
0.1
4 5
R34 1k
C69
0.22/50
R45 47
C82 150p
CN5 A2001WV2-4P
ZCYS51R5-M3PAT
D3.3
C15
0.1
5
+
D3.3
21
62
IC7C TC7W04FU
+
D3.3
IC25 TC74VHC245FT
20
B1 B2
VCC
B3 B4 B5 B6 B7 B8
GND
10
D
1 8
2 7
3 6
3 6
4 5
D
CN3 N.I.U(B7B-PH-K-S)
7
7
6
6
5
5
4
4
3
3
2
2
1
1
+
D3.3
C64 0
R36 470k
A
C75
0.001
C83 150p
1
1
2
2
3
3
4
4
D
C12 10/16
+
R14
1.5k
D
D3.3
17
IC7A TC7W04FU
18 17 16 15 14 13 12 11
RA19 100kx4
1 8
2 7
+
D3.3
DA2 DA204U
2 1
3
R37 100k
A
C76
0.001
+
D3.3
R53 100k
R52 100k
D
Reset
R5
1.5k
C6 N.I.U
C13
0.01
D
+
R21 10k
MODE2
XRST
D
FS4 FS3
C70
FS2
150p
FS1
C77
0.001
R56 100k
R55 100k
C86
0.0047
IC16 S-80930CNMC-G80
D
C78
0.001
C87
0.0047
D
C100
0.1
+
D3.3
84
C48
0.1
SW_SCAN6 SW_SCAN5 SW_SCAN4 SW_SCAN3 SW_SCAN2 SW_SCAN1 SW_SCAN0
+
D3.3
D
ENCA
ENCB
+
D3.3+D3.3
2
VDD
5
OUT
CD
NC
VSS
3
DD
IC7D
D
TC7W04FU
R31 10
C63 47/16
ESP_INT0
LED_CLOCK
C89
0.1
1
4
IC7B
3 5
TC7W04FU
+
C227 N.I.U
C226
CDTI
CCLK
CSN
MUTE
PDN
XP_INT
SW_SCAN6 SW_SCAN5 SW_SCAN4 SW_SCAN3 SW_SCAN2 SW_SCAN1 SW_SCAN0
XP_RST
LED_DATA
R6 27
R9 27
R18 N.I.U
C228
0.1
C225 N.I.U
N.I.U
C84 10p
X3 HC-49SM(5MHz)
C85 10p
D3.3
R58 10k
MAIN BOARD (Digital)
+
+
D3.3
D
D+
D-
VBUS
TRON
INT1/SOF INT0
DACK1 DREQ1
DREQ0 DACK0
TC1
TEST
RST
D3.3
12
35
1
16
IO-VCC
IO-VCC
CORE-VCC
CORE-VCC
HWR/BYTE
GND
GND
GND
2
15
36
D
PCM1/CLKOUT/BUSCLK
PCT1/UCAS/UWR/UDQM
PCT0/LCAS/LWR/LDQM
PCS6/CS6/RAS6 PCS5/CS5/IORD PCS4/CS4/RAS4 PCS3/CS3/RAS3
PCS2/CS2/IOWR
PCS1/CS1/RAS1
PCD3/UBE/SDRAS PCD2/LBE/SDCAS
VSS
VSS
VSS
VSS
VSS
VSS
9
28
38
48
82
99
113
IC4 M66291GP
A6 A5 A4 A3 A2 A1
D15/A0 D14/P6 D13/P5 D12/P4 D11/P3 D10/P2
D9/P1 D8/P0
D7 D6 D5 D4 D3 D2 D1 D0
CS
LWR
RD
XIN
XOUT
R27 100
C51 15p
PAH9/A25 PAH8/A24 PAH7/A23 PAH6/A22 PAH5/A21 PAH4/A20 PAH3/A19 PAH2/A18 PAH1/A17
PAH0/A16 PAL15/A15 PAL14/A14 PAL13/A13 PAL12/A12 PAL11/A11 PAL10/A10
PAL9/A9 PAL8/A8 PAL7/A7 PAL6/A6 PAL5/A5 PAL4/A4 PAL3/A3 PAL2/A2 PAL1/A1 PAL0/A0
PDL15/D15 D14/PDL14 D13/PDL13 D12/PDL12 D11/PDL11 D10/PDL10
D9/PDL9 D8/PDL8 D7/PDL7 D6/PDL6 D5/PDL5 D4/PDL4 D3/PDL3 D2/PDL2 D1/PDL1 D0/PDL0
PCM0/WAIT PCM4/REFRQ PCM3/HLDRQ PCM2/HLDAK
PCT7/BCYST
PCT6/OE PCT5/WE PCT4/RD
PCS7/CS7
PCS0/CS0
PCD1/SDCLK
PCD0/SDCKE
VPP/MODE2
MODE1 MODE0
VSS
VSS
VSS
125
135
+
C88
0.1
D
C101
0.001
D
C2 10/16
C4
0.01
C7
0.01
R17
+
D3.3
10k
R19 N.I.U
+
D3.3
R23 10k
XRST
IC11 UPD703106AGJ-086-UEN
49
ADTRG/IP123/P37
50
IP122/P36
51
IP121/P35
52
RXD2/IP120/P34
53
TXD2/IP133/P33
54
SCK2/IP132/P32
55
SI2/IP131/P31
56
SO2/IP130/P30
65
SCK1/P45
66
RXD1/SI1/P44
67
TXD1/SO1/P43
68
SCK0/P42
69
RXD0/SIO/P41
70
TXD0/SO0/P40
71
AVDD/AVREF
72
AVSS
73
P77/ANI7
74
P76/ANI6
75
P75/ANI5
76
P74/ANI4
77
P73/ANI3
78
P72/ANI2
79
P71/ANI1
80
P70/ANI0
19
DRQ3/IP103/P07
20
DRQ2/IP102/P06
21
DRQ1/IP101/P05
22
DRQ0/IP100/P04
23
TO00/P03
24
IP001/P02
25
TIO00/IP000/P01
26
PWM0/P00
29
DMAAK3/PBD3
30
DMAAK2/PBD2
31
DMAAK1/PBD1
32
DMAAK0/PBD0
33
TO01/P13
34
IP011/P12
35
TIO10/IP010/P11
36
PWM1/P10
39
TC3/IP113/P27
40
TC2/IP112/P26
41
TC1/IP111/P25
42
TC0/IP110/P24
43
TO02/P23
44
IP021/P22
45
TIO20/IP020/P21
46
NMI/P20
D
83
P52/TO03
84
P51/IP031
85
P50/IP030/TI030
86
PCM5/SELFREF
60
CKSEL
62
X2
63
1 2
X1
CPU V850 MA1
61
CVDD
64
CVSS
59
RESET
XRST
4
3
5
6
11 42
8 9
47 48
10
7
D
46
C3 10/16
C5
0.01
C8
0.01 D
22 21 20 19 18 17
40 39 38 37 34 33 32 31 30 29 28 27 26 25 24 23
45 44 41 43
14
13
VDD VDD VDD VDD VDD VDD VDD VDD VDD
A6 A5 A4 A3 A2 A1
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
CS6
R26 1M
X1 HC-49SM(6MHz)
114 115 116 117 118 119 120 121 122 123 126 127 128 129 130 131 132 133 136 137 138 139 140 141 142 143
144 1 2 3 4 5 6 7 10 11 12 13 14 15 16 17
90 91 87 88 89 92 93 94 95 96 97
100 101 102 103 104 105 106 107 108 109 110 111
D3.3
18 57 58
D3.3 134 124 112 98 81 37 47 27 8
C90
0.1
12
+
D
+
C91
0.1
18 27 36 45 18 27 36 45 18 27 36 45 18 27 36 45 18 27 36 45 18 27 36 45
18 27 36 45 18 27 36 45 18 27 36 45 18 27 36 45
D3.3
C52 15p
D
A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
RA32 68x4
RA33 68x4
RA34 68x4
RA35 68x4
R46 47
R49 47
R50 47
+
C92
0.1
D3.3
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
+
D3.3
R300 10k
RA20 68x4
RA21 68x4
RA24 68x4
RA27 68x4
RA29 68x4
RA31 68x4
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
MODE2
R54 10k
D
+
+
D3.3+D3.3+D3.3+D3.3
C93
C94
C95
0.1
0.1
0.1
D DD DDD DD DD
+
D3.3
R1
C234
2.2/50
10k
C239
C247
C238
C235
C237
C236
68p
68p
D
D
D
D
+
D3.3
+
D3.3
C30 0.1
C35 0.1
C40 0.1
1
11
33
45
66
77
89
121
VDD5
VDD5
VDD5
VDD544VDD5
VDD5
VDD5
VDD588VDD5
XP7
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
6
15
VSS
17
39
51
61
63
72
83
96
105
117
C45 0.1
12
56
100
132
133
144
165
176
WA23
VDD3
VDD3
VDD3
VDD5
VDD5
VDD5
VDD3
VDD5
VDD5
WA22 WA21 WA20 WA19 WA18 WA17 WA16 WA15 WA14 WA13 WA12 WA11 WA10
WA9 WA8 WA7 WA6 WA5 WA4 WA3 WA2 WA1 WA0
WD15 WD14 WD13 WD12 WD11 WD10
WD9 WD8 WD7 WD6 WD5 WD4 WD3 WD2 WD1 WD0
WCS7 WCS6 WCS5 WCS4 WCS3 WCS2 WCS1 WCS0
WOE1 WOE0
WREQ WACK
OUTP2 OUTP1 OUTP0
WCKC
BCKC SDOD SDOC
WCKB
BCKB
SDIB
SDOB
WCKA
BCKA
SDIA5 SDIA4 SDIA3 SDIA2 SDIA1 SDIA0
SDOA5 SDOA4 SDOA3 SDOA2 SDOA1
VSS
127
SDOA0
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
IC8
131
134
140
149
157
164
171
TC203C180AF003(XP7)
D
WAVE ROM(128Mbit)
DD
67 68 70 69 71 73 95 92 90 86 84 81 79 76 74 75 78 80 82 85 87 91 94 93
99
WD15
104
WD14
109
WD13
113
WD12
116
WD11
112
WD10
108
WD9
103
WD8
102
WD7
107
WD6
111
WD5
115
WD4
114
WD3
110
WD2
106
WD1
101
WD0
126 125 124 123 122 120 119 118
97 98
128 129
13 10 14
9 8 7 5
4 3 2 175
174 173
166 167 168 169 170 172
158 159 160 161 162 163
36 12 13 11 14 15
10 16 17 18 19 20 21 22 23
24 27
R47 47 R48 47
2 3 4 5 6 7 8 9
1
D3.3
18 27 36 45
IC9 MR27V12800J
A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
CE OE BYTE
+
RA36 47x4
68p
XCS XRESET A0 XWR XRD D0 D1 D2 D3 D4 D5 D6 D7/SI DUTY0 DUTY1 VOUT VDD VSS C86 P/S
+
D3.3
C74
0.1
TRS5 TRS4 TRS3 TRS2 TRS1 TRS0
TRR5 TRR4 TRR3 TRR2 TRR1 TRR0
68p
20 19 18 17 16 15 14 13 12 11 10
D
+
D3.3
68p
C240
68p
CN1 20FMN-BTK-A
20 19 18 17 16 15 14 13 12 11 10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
D15/A-1
VCC VCC
VSS VSS VSS VSS
18 27 36 45 18 27 36 45 18 27 36 45 18 27 36 45
4
VDD
GND2OUT
D
68p
C242
C241 68p
To LCD
46 44
D14
42
D13
40
D12
35
D11
33
D10
31
D9
29
D8
45
D7
43
D6
41
D5
39
D4
34
D3
32
D2
30
D1
28
D0
38 37
48 47 26 25
WD15 WD7 WD14 WD6 WD13 WD5 WD12 WD11 WD3 WD10 WD8 WD0 WD1 WD9 WD2 WD4
ESP_INT0
X2SG-8002JC(67.7376MHz)
ESP_DA5
ESP_DA3
ESP_DA1
ESP_AD
ESP_LRCK
ESP_BCK
ESP_MCK
C246
C245
C244
C243
68p
68p
68p
68p
68p
WD15 WD14 WD13 WD12 WD11 WD10 WD9 WD8 WD7 WD6 WD5 WD4 WD3 WD2 WD1 WD0
+
D3.3
C61
C60
0.1
0.1
RA22 10kx4
RA25 10kx4
RA28 10kx4
RA30
4.7kx4
1
OE
3
D7
C62
D6
10/16
D5 D4 D3
+
D3.3
D2 D1
D
D0
R30 10k
CS4
+
D3.3
H/L
R41 47
R159 47
R160 47
+
D3.3
A0
R24 10k
R25 10k
C96
0.1
+
D3.3
53
C215
0.1
1
4
2
IC28 TC7SH32FU
D
D0 D1 D2 D3 D4 D5 D6 D7
D3.3 18 27 36 45 18 27 36 45 18 27 36 45 18 27 36 45
+
D3.3
+
CS1
C97
0.1
+
D3.3
C98
0.1
D3.3
D3.3
RA8 N.I.U
RA9 N.I.U
RA10 N.I.U
RA11 N.I.U
SDRAM(16Mbit)
IC6 M12L16161A-7T
20
A11
A10/AP
32
A10
A9
31
A9
A8
30
A8
A7
29
A7
A6
28
A6
A5
27
A5
A4
24
A4
A3
23
A3
A2
22
A2
A1
21
A1
A0
18
CS
17
RAS
16
CAS
15
WE
19
A20
BA
36
UDQM
14
LDQM
37
NC/RFU
34
CKE
35
CLK
33
NC
FLASH MEM(16Mbit)
13
A22
10
A21
9
A20
16
A19
17
A18
48
A17
1
A16
2
A15
3
A14
4
A13
5
A12
6
A11
7
A10
8
A9
18
A8
19
A7
20
A6
21
A5
22
A4
23
A3
24
A2
25
A1
26
CS0
11 28 15 47 14 12
D3.3
R43 10k
D
+
D3.3
R51 10k
XRST
+
C99 10/16
+
19
D
49
DQ15
48
DQ14
46
DQ13
45
DQ12
43
DQ11
42
DQ10
40
DQ9
39
DQ8
12
DQ7
11
DQ6
9
DQ5
8
DQ4
6
DQ3
5
DQ2
3
DQ1
2
DQ0
1
VDD
25
VDD
7
VDDQ
13
VDDQ
38
VDDQ
44
VDDQ
4
VSSQ
10
VSSQ
41
VSSQ
47
VSSQ
26
VSS
50
VSS
C53
0.1
NC(A21) NC(A20) A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
CE WE OE RY/BY BYTE WP/ACC RESET
IC13 MBM29DL164BE-70
+
2 3 4 5 6 7 8 9
1
C54
0.1
DQ15/A-1
45
+
D3.3
D
D3.3
R4 10k
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
+
R7 10k R8 10k
R10 10k
A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
36 27 18
RA3 100x4
RA6 100x4
C14 10/16
C17 0.1
C19 0.1
C24 0.1
C29 0.1
C34 0.1
C39 0.1
C44 0.1
27 25 23 21 22 24 26 28 29 30 31 32 34 35
36 41 47 52 55 50 46 40 38 43 49 54 53 48 42 37
60
58
CS3
19 20
57 62
64
59
147 150 152 154 156 155 153 151 148
130 135 136 137 138 139 141 142
145 146 143
18
16
65
R57 10k
D
18 27 36 45 18 27 36 45
RA7100x4
C16 0.1
C18 0.1
C22 0.1
C26 0.1
C32 0.1
C37 0.1
C42 0.1
CA13 CA12 CA11 CA10 CA9 CA8 CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0
CD15 CD14 CD13 CD12 CD11 CD10 CD9 CD8 CD7 CD6 CD5 CD4 CD3 CD2 CD1 CD0
AS
CS RW DS
WAIT INT
CK
RESET
EA8 EA7 EA6 EA5 EA4 EA3 EA2 EA1 EA0
ED7 ED6 ED5 ED4 ED3 ED2 ED1 ED0
RAS CAS EWE
SYI
SYO
TEST
XRST
+
D3.3
IC2 TC74VHC245FT
20
18
A1
B1
17
A2
B2
VCC
16
A3
B3
15
A4
B4
14
A5
B5
13
A6
B6
12
A7
B7
11
A8
B8
+
D3.3 G DIR
C11
0.1
1
2
C55
0.1
DQ14 DQ13 DQ12 DQ11 DQ10
DQ9 DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0
VDD
VSS VSS
D3.3
GND
10
C56
0.1
45 43 41 39 36 34 32 30 44 42 40 38 35 33 31 29
37
27 46
+
53
IC15 TC7SH32FU
D
N1608Z601T01
D
C57
C58
0.1
0.1
C72
0.1
4
C80
0.1
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
XP_INT
XP_RST
L34
C248 10/16
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
+
D3.3
C59 10/16
+
D3.3
D
C73 10/16
D
+
VR1A
3
RV110-40E1(50kB)
2
1
VR2A
3
RV110-40E1(50kB)
2
1
VR3A
3
RV110-40E1(50kB)
2
1
13 14
24 23
22 12
1
A
VR4A RV142A-40E1(50kA)
1
1
2
2
3
3
4
4
5
5
6
6
7
To MAIN BOARD
7
8
8
9
9
10
10
CN12 WIRING VR BOARD
VOLUME BOARD
+
D3.3
C27 10/16
D
1
11
26
37
51
73
90
VDD5
VDD5
VDD5
VDD5
VDD5
VDD5
CA13 CA12 CA11 CA10 CA9 CA8 CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0
CD7 CD6 CD5 CD4 CD3 CD2 CD1 CD0
INT1 INT0
CS WR RD
DIRECT CTYPE EAMPX RFRSH PWRSAV GRAMC SHRMD
OSC
DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0
AD3 AD2 AD1 AD0
LRCK1 LRCK0
BCK1 BCK0
MCK1 MCK0
XTESTT XTESTS TESTB
VSS
6
15
VSS
VSS
22
29
ESP4
VSS
VSS
VSS
36
44
55
VDD5
VSS
81
A13
82
A12
83
A11
84
A10
86
A9
87
A8
88
A7
89
A6
91
A5
92
A4
94
A3
95
A2
96
A1
97
A0
99 100 102 103 104 105 106 107
74
75
77
78
79
65
66
67
68
69
70
71
D
30
118 119 121 122 123 125 126 127
129 130 132 133
134 135
137
64fs
138
256fs
139 141
76 131
31
C204 0.1
C20 0.1
C23 0.1
C25 0.1
C28 0.1
C31 0.1
C33 0.1
C36 0.1
C38 0.1
C41 0.1
C43 0.1
C46 0.1
C47 0.1
C49 0.1
C50 0.1
18
59
93
101
109
120
128
140
IC10 TC223C080AF-101(ESP4)
VDD3
VDD3
VDD3
VDD5
VDD5
VDD5
VDD3
VDD5
63
TRR5
62
TRR4
61
TRR3
60
TRR2
58
TRR1
57
TRR0
56
TRCKIN
52
RST2
53
RST1
R28 100
54
VPOUT
110
TRS5
111
TRS4
112
TRS3
113
TRS2
114
TRS1
115
TRS0
117
TRCKO
142
SYO
143
SYI
28
EA9
27
EA8
25
EA7
24
EA6
23
EA5
21
EA4
20
EA3
19
EA2
17
EA1
16
EA0
50
ED23
49
ED22
48
ED21
47
ED20
46
ED19
45
ED18
43
ED17
42
ED16
41
ED15
40
ED14
39
ED13
38
ED12
35
ED11
34
ED10
33
ED9
32
ED8
10
ED7
9
ED6
8
ED5
7
ED4
5
ED3
4
ED2
3
ED1
2
ED0
12
WE
13
CAS
14
RAS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
64
VSS
72
80
85
98
108
116
124
136
144
D
RA15 47x4
18 27 36 45 18 27
RA17
36
47x4
45
EA8 EA7 EA6 EA5 EA4 EA3 EA2 EA1 EA0
ED7 ED6 ED5 ED4 ED3 ED2 ED1 ED0
C249
0.1
A
33.8688MHz
20
VR1B RV110-40E1(50kB)
10
20
VR2B RV110-40E1(50kB)
10
20
VR3B RV110-40E1(50kB)
10
VR4B
10
20
RV142A-40E1(50kA)
A
D
XRST
C224
0.01
D
+
D3.3
R29
DRAM(4Mbit)
10k
IC12 LC32V4265CT-25-TLM-E
28
A8
I/O16
27
A7
I/O15
26
A6
I/O14
25
A5
I/O13
24
A4
I/O12
21
A3
I/O11
20
A2
I/O10
19
A1
18
A0
13
NC
14
NC
17
NC
32
NC
16
RAS
30
UCAS
31
LCAS
15
WE
29
OE
D
TRR5 TRR4 TRR3 TRR2 TRR1 TRR0
TRS5 TRS4 TRS3 TRS2 TRS1 TRS0
+
D3.3
43
1 8
RA23
42
2 7
10kx4
41
3 6
40
4 5
38
1 8
RA26
37
2 7
10kx4
3 6
36 35
4 5
I/O9
10
I/O8
9
I/O7
8
I/O6
7
I/O5
5
I/O4
4
I/O3
3
I/O2
2
I/O1
22
VCC
6
VCC
1
VCC
44
VSS
39
VSS
23
VSS
C65
0.1
ED7 ED6 ED5 ED4 ED3 ED2 ED1 ED0
+
D3.3
C68 10/16
D
C67
C66
0.1
0.1
35
Page 32
Dec.2004 DR-880

CIRCUIT DIAGRAM (JACK)

fig.c-analog.eps
JK4 HTJ-064-10D
2
FOOTSW 1,2
3 1
FOOTSW 3,4 / EXP PEDAL
JK5 HTJ-064-10D
2 3 1
2+1
R93 22(1/2W)
C127 100/16
CN8
A
A2001WV2-4P
1
1
2
2
3
3
4
4
R109
C138
22(1/2W)
100/16
A
2-1
To INPUT BOARD
IC21C NJM2100M
+
D3.3+D3.3
DA4 DA204U
2 1 R59 470k
+
D3.3+D3.3
D
R66
4.7k
+
D3.3+D3.3
R72 470k
D
R80
4.7k
R100
C130
10k
0.001
R103
C135
47k(F-rank)
10/16
+
A3.3
C214 10p
R118
8.2k
84
­C150
0.1
+
R121 10k
C151 10/16
A
AAAA A
R63
4.7k
R67
4.7k
R74
4.7k
R81
4.7k
D3.3+D3.3
2
3
C152
0.1
+
R96
6.8k(F-rank)
C131 10p
-
+
IC21A NJM2100M
3
DA5 DA204U
2 1
3
DA6 DA204U
2 1
3
DA7 DA204U
2 1
3
1
C153 47/16
R64
4.7k
R68
4.7k
R75
4.7k
R82
4.7k
R110 10k(F-rank)
D
FS1
D
FS2
ESP_LRCK
ESP_BCK ESP_DA5
ESP_MCK
CDTI
CCLK
CSN
D
FS3
PDN
D
FS4
C133 10p
R107 150k(F-rank)
6
­7
5
+
C213 10p
IC21B NJM2100M
ESP_DA1
ESP_DA3
DAC/DIT
R60
100
C106 10/16
C123
0.1
A
C137 10/16
C139 10/16
DAC
A
+
A3.3
R65 10
3
TX
DVDD LRCK BICK SDTI
MICKO MCKI5AOUTR
SDA/CDTI SCL/CCLK CSN
I2C CAD1 CAD0
TTL
DZF
PDN TST NC
DVSS
4
R92 10
C126 10/16
A
2
LIN
1
RIN
9
SDTI
10
LRCK
11
MCLK
12
BCLK
7
DEM1
6
DEMO
13
PDN
12
VCOM
11
LOUT
10
ROUT
9
DIF0
16
PM
15
DIF1
C232
0.1
D
22
AVDD
AOUTL
VCOM
AVSS
21
A
AD
+
A3.3
CODEC
IC22 AK4552VT
4
5
VA
VD
LOUT
ROUT
SDTO
VCOM
VSS
3
C223
0.1
A
C165
0.1
A
C108
0.1
19
18
C111
0.1
20
IC18 AK4353VFP-E2
15
16
8
14
C166 10/16
C109 10/16
C230 0.1
DDA
C231 0.1
A
C112 10/16
C254 10/16
C255 10/16
ESP_AD
C147
C146
0.1
1/50
A
D
C167
4.7/50
2+1
C149
84
0.1
-
+
C154
IC20C
0.1
M5218AFP
R164 12k
R167 100k
1
A
R165
R168
12k
100k
1
A
C161 10/16
C170 10/16
A
2-1
C115 10p
R83 N.I.U
R89
R91
C119 10/16
Q14 RN1441
2 3
A
C140 10/16
Q15 RN1441
2 3
A
R122 N.I.U
R124 39k
C209 N.I.U
R129 N.I.U
R131 39k
C210 N.I.U
IC24C M5218AFP
100k
1k
6
-
5
+
C212
IC20B
10p
M5218AFP
A
C134 10p
R104 N.I.U
R112 1k
2
-
3
+
C211 10p
A
C157 10p
C160 N.I.U
R123 100k
6
­7
5
+
IC24B M5218AFP
C168 10p
C169 N.I.U
R130 100k
2
­1
3
+
IC24A M5218AFP
2+1
A
84
C1750.1
-
+
0.1 C177
2-1
7
R108 100k
IC20A M5218AFP
C155 10/16
C158 10/16
C116 N.I.U
C121 10/16
VRIN_L
C136 N.I.U
C142 10/16
1
VRIN_R
R125
C162
1k
10/16
R127 100k
AA
R132
C171
1k
10/16
R134 100k
A
A
VROUT_L
IC19C NJM4556AM
VROUT_R
2+1
C156
84
0.1
-
+
C159
AA
0.1
2-1
R87 N.I.U
A
C207
C122
10p
10/16
R95 100k
R105 N.I.U
A
C208
10p C143 10/16
R117 100k
MUTE
A
A
IC19B NJM4556AM
6
-
5
+
2
-
3
+
IC19A NJM4556AM
R139 10k
D3.3
C199 47/16
7
R94 N.I.U
C128 N.I.U
A
C201 47/16
1
R113 N.I.U
C148 N.I.U
A
+
D3.3
+
D3.3
D4
R136
1SS352
100k
1 2
+
R137
C176
10k
47/16
D
R141 1k
C107
0.1
2
8 6 7
1
12 11 10
15 17 16
A
14
24
9 13 23
C233
0.1
C125
0.1
C124 100/16
A
+
A3.3
IC23
14
AK4386VTP-E2
1
MCLK
2
BICK
VDD
3
SDTI
4
LRCK
5
PDN
6
DFS0
7
DFS1
8
DEM
VSS
13
A
+
D3.3
C102
0.1
IC17
53
TC7S04FU
D
2 4
D
C120 470/16
R69
R70
43(1/2W)
100k
C141 470/16
R71
R73
43(1/2W)
100k
A
R76 1k
R162 100k
A
R84 1k
R163 100k
A
R97 22k
R101 100k
A
R114 22k
R119 100k
A
+
D3.3
12
D3 1SS352
Q9 2SA1586GR
1
R138
3 2
47k
R140 470k
1
Q10
2-1
2 3
2SC2412KR
D
C103 10/16
1 2 3 4
C104
0.1
D
Q1
1
RN1441
2 3
AA
1
2 3
A
1
2 3
A
1
2 3
A
1
2 3
1
2 3
A
Q7
1
RN1441
2 3
A
Q8
1
RN1441
2 3
C174 470/16
A
C253 10/50
A
A
Q2 RN1441
C113 10/16
Q3 RN1441
C117 10/16
Q4 RN1441
C129 47/16
Q5 RN1441
C144 47/16
Q6 RN1441
C163 10/16
R128 100k
A
C172 10/16
R135 100k
A
L12 N.I.U
R62
L13
1020
75
SBT-0180W
6
4
FL1 PT-10 (2280-T008)
CN6 A2001WV2-3P
1
1
2
2
3
3
R79 100k
A
R90 100k
A
R102 10k
A
R120 10k
A
123
L16 N.I.U
To PHONES BOARD
R78
L19
1k
N1608Z601T01
C114 N.I.U
A
R86 1k
L20
C118
N1608Z601T01
N.I.U
A
R99 1k
C132 N.I.U
AA
R116 1k
C145 N.I.U
L21
R126
N1608Z601T01
1k
C164 N.I.U
L31 N1608Z601T01
A
R133
L22
1k
N1608Z601T01
C173 N.I.U
L32 N1608Z601T01
AA
JK3A
C105
YKC21-3486
220p
2
1
JK3B YKC21-3486
C110 N.I.U
10
D
D
L29 N1608Z601T01
C250
0.1
A
D
L30 N1608Z601T01
C251
0.1
A
D
CN7 A2001WV2-3P
1
1
2
2
3
3
To PIN JACK BOARD
AA
C252
0.1
A
D
A
DIGITAL OUT
JK6 HTJ-064-10I
2 4 1
C198
0.1
D
2 4 1
JK7 HTJ-064-10I
C200
0.1
D
2 4 1
INDIVIDUAL A
JK8 HTJ-064-10I
C202
0.1
D
2 4 1
INDIVIDUAL B
JK9 HTJ-064-10I
C203
0.1
D
OUTPUT L (MONO)
OUTPUT R
37
Page 33
Dec.2004 DR-880

CIRCUIT DIAGRAM (POWER)

fig.c-power.eps
BRC ADAPTOR AC14V
2 1 3
JK12 HEC0740-010010
R149
SMDC075
FL2 DSS9ND31H223Q91J
D
1
2
FL3 N.I.U(SH-202)
FL4 DSS9ND31H223Q91J
4
3
D
SW1A SDKLA1-B
1 2
C184 ERZVA7V330
D6 1N4004G
1 2
C185 470/35
+
D3.3
L24
R147
0.56(1/2W)
R148 1k
D
8
7
6
4
Q11 2SA1241Y
1
CD
SI
V+
GND
IC26 NJM2374AM
23
R150
2.2k
IN+
CS
ES
CT
L28 TSL1112-471KR72
D7 SS14
1 2
D
1
2
5
3
D
C186
150p
R151
5.6k(F-rank)
R152
3.3k(F-rank)
D
N.I.U
C183 470/16
D
R155
43(1/2W)
+
D3.3
To LCD Back Light
CN11 A2001WV2-3P
1
1
2
2
3
3
1 2
D8 1N4004G
D11 1N4004G
D D
Q12 2SD1758
32
R153
1.5k
C187
470/35
12
C195
470/35
D9 RD13ESAB2
D10 RD13ESAB2
R154
1.5k
1 2
1 2
1
C188
0.1
C193 100/16
C194 100/16
1
2 3
Q13 2SB1182
C196
0.1
2+1
C189 100/16
2-1
C197 100/16
R161 470K
1
C190
0.1
IC27 UPC29M33AT
IN
GND
2
OUT
3
C191
0.1
+
A3.3
C192 100/16
A
D
39
Page 34
Dec.2004 DR-880

CIRCUIT BOARD (SW)

fig.b-sw1.eps
View from components side
41
Page 35
Dec.2004 DR-880

CIRCUIT BOARD (SW)

fig.b-sw2.eps
View from foil side
43
Page 36
Dec.2004 DR-880

CIRCUIT DIAGRAM (SW, ENCODER, PIN, INPUT, PHONES)

fig.c-SW.eps
+
D3.3
+
3
3
3
3
SW2
[GROOVE][TSC]
1 2
12
DA2 DAP202U
1 2
SW9
[BELL]
SW16
[TOM4]
1 2
12
DA9
DAP202U
1 2
SW23
[CLAP]
SW30
[FAVORITE4]
1 2
12
DA16 DAP202U
1 2
SW37
[FAVORITE3]
SW44
[TUNER]
1 2
12
DA23 DAP202U
1 2
SW50
[KIT]
SW1
1 2
12
DA1
3
DAP202U
1 2
SW8
[RIDE]
SW15
[CHINESE CYM]
1 2
12
DA8
3
DAP202U
1 2
SW22
[COWBELL]
SW29
[CROSS STICK]
1 2
12
DA15
3
DAP202U
1 2
SW36
[SNARE2]
SW43
[OUTPUT SETTING]
1 2
12
DA22
3
DAP202U
1 2
SW49
[PAD] [SONG]
12
3
12
3
12
3
12
3
SW3
[FILL IN]
1 2
DA3 DAP202U
1 2
SW10
[SPLASH CYM]
SW17
[TOM3]
1 2
DA10 DAP202U
1 2
SW24
[OPEN HH]
SW31
[SNARE1]
1 2
DA17 DAP202U
1 2
SW38
[KICK2]
SW45
[EFFECT]
1 2
DA24 DAP202U
1 2
SW51
SW4
[CHORD PROGRESS]
1 2
12
DA4
3
DAP202U
1 2
SW11
[CRASH 2]
SW18
[TOM2]
1 2
12
DA11
3
DAP202U
1 2
SW25
[PEDAL HH]
SW32
[FAVORITE2]
1 2
12
DA18
3
DAP202U
1 2
SW39
[FAVORITE1]
SW46
[EDIT]
1 2
12
DA25
3
DAP202U
1 2
SW52
[DISPLAY]
3
3
3
3
SW5
[PATTERN]
1 2
12
DA5 DAP202U
1 2
SW12
[CRASH 1]
SW19
[TOM1]
1 2
12
DA12 DAP202U
1 2
SW26
[CLOSED HH]
SW33
[KICK1]
1 2
12
DA19 DAP202U
1 2
SW40
[REC]
SW47
[SHIFT]
1 2
12
DA26 DAP202U
1 2
SW53
[RWD]
SW6
[CURSOR UP]
1 2
12
DA6
3
DAP202U
1 2
SW13
[CURSOR RIGHT]
SW20
[ENTER]
1 2
12
DA13
3
DAP202U
1 2
SW27
[TEMPO]
SW34
[PLAY]
1 2
12
DA20
3
DAP202U
1 2
SW41
[STOP]
SW48
[RESET]
1 2
12
DA27
3
DAP202U
1 2
SW54
[BANK]
[CURSOR LEFT]
1 2
12
DA7
3
DAP202U
1 2
[CURSOR DOWN]
1 2
12
DA14
3
DAP202U
1 2
1 2
12
DA21
3
DAP202U
1 2
SW42
[FWD]
SW7
SW14
SW21
[EXIT]
SW28
[KEY]
SW35
[LOOP]
SW_SCAN6 SW_SCAN5 SW_SCAN4 SW_SCAN3 SW_SCAN2 SW_SCAN1
SW_SCAN0 SW_DATA7 SW_DATA6 SW_DATA5 SW_DATA4 SW_DATA3 SW_DATA2 SW_DATA1 SW_DATA0
A9
LED_DATA LED_CLOCK
D A
PIEZO1
R2
DB-E648
1k
1 2
C2 150p
A
PIEZO Pickup
CN1 22FE-ST-VK-N
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
A9+A9
C1
0.0047
A
To MAIN BOARD
+
R1
220k
3
Q1 2SK880GR
1 2
R3
220k
R4
A
10k
A
10
20
EN
EN1A EVEGC1F2024B
AB 123
D
EN
AB
EN1B EVEGC1F2024B
CN2 WIRING ENCODER BOARD
1
1
2
2
3
To MAIN BOARD
3
4
4
ENCODER BOARD
+
D3.3
12
12
R5
R6
10
10
LED1 KP-1608MGC(GREEN)
LED2
KP-1608MGC(GREEN)
JK10 HTJ-064-10I
GUITAR/BASS INPUT
L27 N1608Z601T01
INPUT BOARD
[FAVORITE 1] [FAVORITE 2] [FAVORITE 3] [FAVORITE 4] [TSC] [EFFECT] [REC] [LOOP][PLAY]
L23
N1608Z601T01 2 4 1
12
R8 180
LED4 KP-1608SRC-PRV(RED)
R144 10k
+
A9
2 1
A
12
12
R9
R11
180
180
LED7 KP-1608SRC-PRV(RED)
LED5 KP-1608SRC-PRV(RED)
D5
A
1SS352
C180
0.47(ECPU1C474MA5)
3
DA28 DA204U
9A
-
R142 10k
12
LED9 KP-1608SRC-PRV(RED)
12
2
3
R145 1M
A
6
-
5
+
A
C6
0.1
A
12
R13 180
C178 N.I.U
R143 10k
R15 68
LED11 KP-1608SRC-PRV(RED)
To MAIN BOARD
-
1
+
IC25A M5238AFP-600C
7
IC25B M5238AFP-600C
A9
IC25C M5238AFP-600C
LED15 KP-1608SRC-PRV(RED)
CN11
+
WIRING INPUT BOARD
1
1
2
2
3
3
4
4
-9AA
+
A9
84
-
+
9A
-
To MAIN BOARD
12
R19 68
12
R20 68
LED16 KP-1608SRC-PRV(RED)
12
R21 68
LED17 KP-1608SRC-PRV(RED)
C3
+
D3.3
0.1
IC1
D
16
BU2090F
15
Q11
VDD
14
Q10
13 12 11 10
9 8 7 6 5 4
2
DATA
Q9 Q8
3
CLOCK
Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0
VSS
1
D
SW BOARD
CN3 WIRING PIN JACK BOARD
1
1
2
2
3
3
C183
0.1
12
11
22
21
D
JK1A YKC21-3045
OUTPUT L
JK1B YKC21-3045
OUTPUT R
PIN JACK BOARD
To MAIN BOARD
2 3 1
JK11 HTJ-064-10D
PHONES
PHONES BOARD
C181
0.1
C182
0.1
L24 N1608Z601T01
1
1
2
2
3
3
CN10 WIRING PHONES BOARD
A
L25 N1608Z601T01
C5
0.1
A
L26 N1608Z601T01
45
Page 37
Dec.2004

ERROR MESSAGES

Buffer full!
Cause 1: Too many MIDI messages were received all at once, and the DR-880
was unable to process all of them.
Action 1:Reduce the volume of the MIDI messages being sent by the
transmitting device.
Cause 2: You attempted to play back an excessive amount of data, and the DR-
880 was unable to process all of it.
Action 2:Reduce the amount of data being played back, or slow down the
playback tempo.
Checksum error !
Cause: MIDI Exclusive messages could not be received correctly during a
Bulk Load operation.
Action: Try the operation again.
File error !
Cause: During an SMF Import, you attempted to use a file of a type other
than those specified, or one that is invalid.
Action: Use the specified type of file.
Memory full !
Cause: Memory is full.
Action: Save the pattern/song you are creating, and then delete unneeded
patterns or songs.
System error !
Cause: An unknown error has occurred in the system.
Action: Immediately stop using the unit, and consult your dealer or nearest
Roland Service Center.
MIDI off line !
Cause: A MIDI Active Sensing error has occurred. An abnormality has been
detected in the device or cable connected to MIDI IN.
Action: Check the device or cable connected to MIDI IN.
Not supported !
Cause: You attempted to import SMF data that the DR-880 does not support.
Action: Check that the SMF is in a format that can be imported by the DR-880.
(p. 135)
Now working...
Cause: Data is being processed.
Action: Please wait until the message disappears.
Now writing...
Cause: Data is being saved to memory.
Action: Never turn off the power while this message is displayed.
* If you turn off the power while this message is displayed, it is possible that
previously saved data (in addition to the data now being written) will also be lost.
Too busy !
Cause: The system attempted to concurrently process abnormally large
amounts of data, but was unable to succeed.
Action: Make sure that the unit is not being forced to handle an overly large
amount of data (in patterns, or received MIDI messages) all at once, and try to reduce the amount of data.
Use pattern mode.
Cause: You attempted to use EZ Compose or Groove Modify in Song mode.
Action: Switch to Pattern mode before using EZ Compose or Groove Modify.
User data is damaged. Factory Reset
Cause: The data in the DR-880’s internal memory is damaged. (This message
will appear when you turn on the power.)
Action: Press [ENTER] to reset the DR-880 to the factory-set condition.
46
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