Roland D-70 Service Notes

May
1990
D-70
SURER UA
SVNTHESIZER
SPECIFICATIONS /{±S
SERVICE
NOTES
First Edition
Keyboard
Sound Source System •
Maximum simultaneous
Display
Built-in Orignal Tones
Built-in Effect
:76 keys
(with velocity
and channel
aftertouch)
:
Advanced LA Synthesis with TVF (Time Variant
Filters)
:
Low
Pass, High Pass. Band Pass
TVF
(Time Variant Filters) £{i
(Low
Pass, High Pass.
Band
Pass)
:
30
voices
240 X 64 dot on LCD
119
Digital Reverb
(Room
1-3, Hall 1-2, Gate delay.cross Delay)
Digital
Chorus
(Chorus
1
- 2, Feedback
chorus. Flanger, Short Delay)
Power ConsumptionA'^KHTj
'
Dimensions
Weight
Accessories •
Memory
a)
Internal
b) external
(RAM
Card
:
:
14W
:1097
(W) X
305
(D) x 100 (H)
mm
43-3/16
X
12
X
3-15/16
inch
:
12kg /26
lb
80
oz.
Owner's Manual
(English)
i
26033482
Owrter's Manual (Japanese)
:
26033481
Connection Cable (LP-25
or
PJ-1) 2.5M
:
23430675S0
:
Sound
libraly
RS-PCM
Card (ROM)
:SN-SPLA
series.SN- U1 10 series
NOTE: SN- U1 10- 02/ 08
have
some
tones
that
can not correspond
with
D-70.
D-70 can not use the SN-U110-10
(Rock Drum),
a
:
SN-U110-02/08ILIi-®D-70(c«|CLi5:l'e'fe6<«ysr„
SN-U110-10
(o.,ir.
K5A)
H, D- 70
ICIJIgfflT-g
*
1^^o
:
System Setup
1
Memory
Card
(RAM)
:
M-256E
User Set 10 group (performance
:
50)
(Battery
CR-2016
:
12569374)
Performance 64 RH-100
(Stereo headphones)
Patch 128 EV-5. EV-10
(Expression Pedal)
Tone 128
DP
-2.
DP
-6.
FS-5U (Foot Switch:
unlatch
Rhythm Setup
1
FS'l. FS"5L (Foot Switch
;
latch type)
76 notes
:
El
-67 KS-8
(Keyboard Stand)
76S
:
El -67 TB-D70
(Hard case)
:
System Setup
1
CB-20
(Soft case)
User Set 10 group (performance
:
50)
Performance
64
Patch 128
Tone
128
Rhythm
Setup
1
76
notes
:
El
-67
76a
:
El-67
TABLE OF CONTENTS
SPECIFICATIONS
EXPLODED
VIEW
DISASSEMBLING
AND
REASSEMBLING PROCEDURE
KEYBOARD SK-776-BW
PARTS
LIST
DISASSEMBLY
CIRCUIT
DIAGRAM
SK-776-AW CONTACT BOARD
(32P)
SK-776-AW CONTACT BOARD
(44P)
PARTS
LIST
BLOCK DIAGRAM
CIRCUIT DESCRIPTION
CIRCUIT
DIAGRAM
(MAIN
BOARD
1/2)
MAIN
BOARD
REMOVING LITHIUM BATTERY
DISCONNECTING
WIRING
RESTORING THE FACTORY PRESETS
IDENTIFYING VERSION
NUMBER
CIRCUIT
DIAGRAM
(MAIN
BOARD
2/2)
ANALOG BOARD
CIRCUIT DIAGRAM (ANALOG BOARD)
CARD BOARD
CIRCUIT
DIAGRAM
(CARD BOARD)
PANEL
BOARD
CIRCUIT
DIAGRAM
(PANEL
BOARD)
DISPLAY
BOARD
CIRCUIT DIAGRAM
(DISPLAY
BOARD)
SLIDER
BOARD
CIRCUIT DIAGRAM
(SLIDER
BOARD)
BENDER
BOARD
CIRCUIT
DIAGRAM
(BENDER BOARD)
POWER
SUPPLY,
PI,
P2
BOARDS
CIRCUIT
DIAGRAM
(POWER SUPPLY,
PI,
P2 BOARDS)
TEST
MODE
DATA
SAVE
and
LOAD
CHANGE INFORMATION
TROUBLESHOOTING
1C
DATA
APPENDIX
SK-776-BW
SK-776-AW CONTACT BOARD
(32P)
SK-776-AW CONTACT BOARD
(44P)
UXh
7^'
^
g]
wnm
(MAIN
BOARD
1/2)
MAIN BOARD
9
T
U
>
^"(D
L
7
7 ^
h
U
-
•
7°
U
-tz •:/
h
[£lg§g](MAIN
BOARD
2/2)
ANALOG BOARD
(ANALOG BOARD)
CARD BOARD
[HS§I1(CARD BOARD)
PANEL BOARD
(PANEL BOARD)
DISPLAY BOARD
0S§g]
(DISPLAY BOARD)
SLIDER BOARD
[l]S§g]
(SLIDER BOARD)
BENDER
BOARD
(BENDER BOARD)
POWER
SUPPLY,
PI,
P2 BOARDS
(POWER SUPPLY,
PI,
P2 BOARDS)
7-7. h
•
K
7-"-^CDiz-7'/n-
1C zr
—
7
Page
1
2
3
3
3
4
R
Slied
Knob
(22485187)
Slide Volume Cover
(22245468)
Pot.
"VOLUME"
:
EWA-NA0X15A14 (lOkA)
(13359356)
"C1".''BRIGHTNESS"
:
EWA-NFEX15B15
(lOOkB) A/Keytop LD2P
I
0
3359361) (22495236)
Slide Knob
(22485159)
Slide
Volume
Cover
(22245171)
Slider
Escutcheon
(22225329)
Pot.
EWA-NFEX10B14
(13339467)
A/Keytop LD1P
(22495233)
LCD Cover
(22043232)
LCD Holder
(22203285)
LCD Unit
TLX711A-30TA2
(15029510)
A/Keytop LIP
(22495225)
A/Keytop LD2P
(22495236)
Knob (Alpha
dial)
(13279967)
Mask
(22245142)
Rotary Encoder
A/Keytop L2P EC24B500 (G5168693M)
Panel
(22495230) (13279967) (22213685)
ASeesaw Switch [POWER]
WK2A44 6A
(13149108)
DIN Socket [MIDI]
Jack
(Stereo)
Slide Switch
[PROTECT SW] YKF51-5041 HLJ0521
-
01
- 01
0
SSSP12 (G5168707M) (13429274) (13449248)
(13159354)
1
I !
Jack (Monaural)
HLJ052/01'
no
(13449133)
"Bender Unit
PB-A0105
(23275916)
-
Bender Panel
(22213894)
Side Holder
(22205315)
Keyboard Ass'y (76keys)
SK-776-BW
(7263720000)
Side Panel ^
(22215871)
Power Transformer Holder
(22205316)
AAC
Cord (lnstalled/^^#(T^)
100V (23495117)
117V (23495113)
220V (23495116)
240VA
(23495114)
240VE (23495115)
ACord Bush
KF-41 (100V/220V)
(12369533)
KR-61A
(11
TV/ 240V)
(12369539)
Card Holder
(22200188)
RAM
Card Holder
(22203443)
1C
Card Connector
7508095A
(13429233)
Knob (LCD contrast)
(22485168)
RK09711105KB
(13279968)
Card Escutcheon
(22225338)
Card Holder
(22205318)
1C
Card Connector
7508095A
(13429233)
Rubber Foot
FF-018
(12359139)
*
All
switches
(tact)
on Panel
are
SKH HAD 039A
(13169633).
h
•
^XSKH
HAD
039A (13169633) T'tc
Printed
in
Japan AI-2
(DP) Copyright
©
1990 by
ROLAND CORPORATION