Boss DR-670 Service Notes
Aug.2001 DR-670
SERVICE NOTES
Issued by RJA
TABLE OF CONTENTS
SPECIFICATIONS.............................................................2
LOCATION OF CONTROLS PARTS LIST ...................4
LOCATION OF CONTROLS ..........................................5
EXPLODED VIEW PARTS LIST ..................................... 6
EXPLODED VIEW ............................................................6
PARTS LIST........................................................................8
IDENTIFYING THE VERSION NUMBER ..................11
SAVEING USER DATA & RELOADING SAVED DATA
TEST MODE.....................................................................12
fig.cover
....11
RESET TO DEFAULT FACTORY SETTINGS (FACTORY RESET)
PROCEDURE FOR UPDATING THE SOFTWARE...15
ERROR MESSAGE LIST.................................................16
BLOCK DIAGRAM.........................................................18
CIRCUIT BOARD (MAIN) ............................................20
CIRCUIT DIAGRAM (MAIN).......................................22
CIRCUIT BOARD (JACK)..............................................24
CIRCUIT DIAGRAM (JACK) ........................................26
...15
Copyright © 2001 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)17058018E0
Aug.2001 DR-670
SPECIFICATIONS
DR-670 : Dr.Rhythm
Maximum Polyphony
20 voices
* Depending on the instruments and drum kits used, maximum polyphony may be
lower.
Instruments
Drum : 256
Bass : 16
Rhythm Patterns
User Patterns : 200
Preset Patterns : 200
Songs
Songs : 100
Song Length : Maximum 250 patterns for a song
Total Patterns for all songs : approx. 3,000
Maximum Note Storage
approx. 8,000 notes
Resolution
Per quater note : 96
Accessories
Owner’s Manual English (#G6017449)
Alkaline Dry Battery LR6 (AA) type x6 (#********)
Options
AC Adaptor : PSA series
Foot Switch : FS-5U
Foot Switch cable : PCS-31 (Roland)
(1/4 inches Phone Plug (stereo) - 1/4 inches Phone Plug (mono) x 2)
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.
Tempo
Quater note : 20 - 260 bpm
Recording Method
Realtime / Step
Pads
20
Display
Custom LCD
Connectors
Output Jacks L(MONO)/R
Headphones Jack (stereo miniature phone type)
Foot Switch Jack (stereo 1/4 inch phone type)
MIDI Connectors IN/OUT
AC Adaptor Jack (DC 9 V)
Power Supply
DC 9V : Dry Battery x6, AC Adaptor (PSA series)
Power Consumption
200 mA or less
* Expected battery life under continuous use:
Carbon : approx. 2.5 hours
Alkaline : approx. 6 hours
These figures will vary depending on the actual conditions of use.
Dimensions
213 (W) x 169 (D) x 53 (H) mm
8-7/16 (w) x 6-11/16 (D) x 2-1/8 (H) inches
Weight
750 g / 1 lb 11 oz (excluding dry batteries)
2
Aug.2001 DR-670
3
Aug.2001 DR-670
LOCATION OF CONTROLS PARTS LIST
No. Part Code Part Name
1 G2817161 TOP CASE
2 G2567111 DISPLAY COVER
3 F5029411 LCD LMD-STC2K0802DRG
4 F2477101 DR-KNOG GT-3
5 02671212 ROTARY ENCODER EVE GB1 F15 24B
6 G2567112 RUBBER SWITCH for PAD
7 02564267 PRESSURE SHEET SENSOR
8 F5029131 LED (RED) L-1394ID
9 F5029132 LED (GREEN) L-1394GD
10 13429825 MIDI CONNECTOR YKF51-5054 2PZ
11 F3449120 6.5MM JACK HTJ-064-10D
12 F3449106 6.5MM JACK HTJ064-10I
13 F3449401 3.6MM JACK HTJ-035-09DB
14 01340412 P R-KNOB SF-A BLK/LCG
15 01676523 9M/M ROTARY POT. RK09K12A0 10KAx2
16 F3159109 SWITCH(SLIDE) HSW-2022-01
17 13449717 ADAPTOR JACK HEC2392-01-150
18 G2817159 BOTTOM CHASSIS
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Aug.2001 DR-670
LOCATION OF CONTROLS
fig.panel.eps
2 31
4 5
8
9
11 12 13 14 15
76
10 16 17 18
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Aug.2001 DR-670
EXPLODED VIEW PARTS LIST EXPLODED VIEW
No. Part Code Part Name Q’ty
1 G2817161 TOP CASE 1
2 G2567112 RUBBER SWITCH for PAD 1
3 02564267 PRESSURE SHEET SENSOR 1
4 F5029411 LCD LMD-STC2K0802DRG 1
5 G2257134 LCD ISOLATION SHEET 1
6 75D462000 MAIN BOARD 1
7 G2817159 BOTTOM CHASSIS 1
8 G2017617 BATTERY CASE 1
9 75D4621000 JACK BOARD 1
10 F2477101 DR-KNOG GT-3 1
11 01340412 P R-KNOB SF-A BLK/LCG 1
12 G2567111 DISPLAY COVER 1
13 F2369405 COATING CLIP 1
No. Part Code Part Name Q’ty
a 40011267 SCREW 3x6 BINDING TAPTITE P ZC 16
b 40011312 SCREW 3x8 BINDING TAPTITE P BZC 12
c 40012534 SCREW 3x6 BINDING TAPTITE S BZC 1
d 40019123 SCREW 3x8 BINDING TAPTITE S BZC 1
fig_bunkai-1.eps
10
b
b
b
b
b
b
11
b
12
b
6
d
Aug.2001 DR-670
fig_bunkai-2.eps
13
a
a
a
a
a
a
a
9
8
7
a
a
3
2
a
a
a
a
a
a
6
a
5
4
b
b
c
1
b
b
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Aug.2001 DR-670
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)
fig.part2e
NOTE: Consider about the natural environment carefully before through the old lithium battery away when you exchange to the new one.
MB -> MAIN BOARD ASSY, JB -> JACK BOARD ASSY
CASING
# G2567111 DISPLAY COVER 1
# G2817161 TOP CASE 1
CHASSIS
# G2817159 BOTTOM CHASSIS 1
KNOB, BUTTON
# F2477101 DR-KNOG GT-3 1
01340412 P R-KNOB SF-A BLK/LCG 1
# G2567112 RUBBER SWITCH for PAD 1
SWITCH
# F3159109 SWITCH(SLIDE) HSW-2022-01 SW1 on JB 1
SAFETY PRECAUTIONS:
The parts marked have safety-related characteristics. Use only listed parts for replacement.
Failure to completely fill the above items with correct number and description will result in delayed or even
undelivered replacement.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
Ex. 10 22575241 Sharp Key C-20/50
15 2247017300 Knob (orange) DAC-15D
JACK, EXT TERMINAL
DISPLAY UNIT
PCB ASSY
IC
F3449401 HTJ-035-09DB 3.6MM JACK JK5 on JB 1
# F3449120 HTJ-064-10D 6.5MM JACK JK4 on JB 1
F3449106 HTJ064-10I 6.5MM JACK JK2, JK3 on JB 2
13429825 YKF51-5054 2PZ MIDI CONNECTOR JK1 on MB 1
13449717 HEC2392-01-150 ADAPTOR JACK JK1 on JB 1
# F5029411 LCD LMD-STC2K0802DRG INC. WIRING A2001H02-14P 1
NOTE: Replacement LCD LMD-STC2K0802DRG should be made on a unit base.
# 75D4620000 MAIN BOARD ASSY 1
75D4621000 JACK BOARD ASSY INC. WIRING A2001H02-8P 1
# 02564290 UPD703106AGJ-054-UEN IC (CPU) IC4 on MB 1
01340789 BU9480F IC (D/A CONVERTER) IC13 on MB 1
01906156 S-8520E33MC-BJS-T2 IC (DC-DC REGULATOR) IC11 on MB 1
01783123 LH28F400BVE-BL85 IC (FLASH MEMORY/BLANK) IC5 on MB 1
# 02564289 LC24134B-UF2 IC (GATE ARRAY) IC3 on MB 1
# F5229806 MX23L6410TC-12 IC (MASK ROM) IC2 on MB 1
# F5289604 A62S6316-55S IC (SRAM) IC7 on MB 1
F5259701 TC74HC04AFN IC (CMOS) IC1 on MB 1
15249104 TC7S04F(TE85L) IC (CMOS) IC9 on MB 1
15259885 TC7S32F(TE85L) IC (CMOS) IC8 on MB 1
15189209 BA15218 IC (OP AMP) IC1 on JB 1
# 02346123 NJM4556AD IC (OP AMP) IC2 on JB 1
00458034 TC75S51F TE85R IC (OP AMP) IC12 on MB 1
15289124 PC-400 IC (PHOTO COUPLER) IC6 on MB 1
15199955 M51957BFP IC (RESET IC) IC10 on MB 1
TRANSISTOR
15119132 2SA1015-GR(TPE2) TRANSISTOR Q5 on JB 1
15129113 2SC1740SR TRANSISTOR Q1 on JB 1
# 02567101 2SJ278 TRANSISTOR Q2 on MB 1
15329518 DTA114TKAT146 TRANSISTOR Q3, Q4 on MB 2
15129204 DTC343TS TP TRANSISTOR Q2, Q3, Q4, Q6 on JB 4
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