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A-70
Sept, 1997
SERVICE NOTES
TABLE OF CONTENTS
Page
SPECIFICATIONS
1
DISASSEMBLY
1
LOCATION OF CONTROLS & REAR VIEW
2
EXPLODED VIEW N.1
3
EXPLODED VIEW N.2
4
KEYBOARD PARTS LIST
4
BLOCK DIAGRAM
5
MAIN PCB ASSY
6
CIRCUIT DIAGRAM (MAIN PCB ASSY)
7
PRIMARY PCB ASSY & CIRCUIT DIAGRAM
8
LEFT CONTROL PCB ASSY
8
CIRCUIT DIAGRAM (LEFT CONTROL PCB ASSY)
9
AFT PCB ASSY & CIRCUIT DIAGRAM
10
RIGHT CONTROL PCB ASSY
10
CIRCUIT DIAGRAM (RIGHT CONTROL PCB ASSY)
11
POWER PCB ASSY & CIRCUIT DIAGRAM
12
MIDI PCB ASSY
12
CIRCUIT DIAGRAM (MIDI PCB ASSY)
13
RIGHT CONTACT PCB ASSY w/RUBBER CONTACT & CIRCUIT DIAGRAM
14
LEFT CONTACT PCB ASSY w/RUBBER CONTACT & CIRCUIT DIAGRAM
14
TEST MODE
15/20
PARTS LIST
20/21
TRANSLATION FROM ENGLISH INTO JAPANESE
22/27
S P E C I F I C AT I O N S
A - 7 0 / A - 7 0 E X : E x p a n d a b l e c o n t r o l l e r
A - 7 0 E X S o u n d S e c t i o n ( V E - R D 1 )
- S o u n d G e n e r a t o r
P C M s y n t h e s i s
- P a r t s
4 P a r t s
- M a x i m u m P o l y p h o n y
6 4 Vo i c e s .
- E f f e c t s
R e v e r b
C h o r u s
E q u a l i z e r
- P r e s e t M e m o r y
P a t c h e s
: 1 2 8
A - 7 0 / A - 7 0 E X C o m m o n
- K e y b o a r d
7 6 K e y s
- Z o n e s
I n t e r n a l
: 4
E x t e r n a l
: 4
- I n t e r n a l M e m o r y
S y s t e m S e t u p
: 1
U s e r N a m e M a p s
: 4
P r e s e t N a m e M a p s
: 9
P e r f o r m a n c e s
: 6 4
C h a i n s
: 1 0
M a n u a l
: 1
- D i s p l a y
3 C h a r a c t e r s ( b a c k l i t L C D )
1 7 C h a r a c t e r s , 2 L i n e s ( b a c k l i t L C D )
.
- N o m i n a l O u t p u t L e v e l
O u t p u t
: - 7 d B m .
- O u t p u t I m p e d a n c e
O u t p u t
: 1 6 0 0 O h m .
- R e c o m m e n d e d L o a d I m p e d a n c e
O u t p u t
: 1 0 K o h m o r G r e a t e r
- C o n n e c t o r s
M i d i C o n n e c t o r s ( i n : 2 , t h r u : 1 , o u t : 4 )
F o o t C o n t r o l l e r J a c k s : 1
S w i t c h J a c k s : 1
To t a l Vo l u m e P e d a l J a c k
H o l d P e d a l J a c k
O u t p u t J a c k s [ L ( M o n o ) , R ]
H e a d p h o n e J a c k
A C I n l e t ( A C 1 0 0 V, A C 2 3 0 V, A C 2 4 0 V )
- P o w e r S u p p l y
A C 1 0 0 V, A C 11 7 V, A C 2 3 0 V o r A C 2 4 0 V
- P o w e r C o n s u m p t i o n
1 5 W ( A C 1 0 0 V ) , 1 7 W ( A C 11 7 V )
2 0 W ( A C 2 3 0 V ) , 2 0 W ( A C 2 4 0 V )
- D i m e n s i o n s
1 2 4 5 ( W ) X 3 5 7 ( D ) X 1 3 6 ( H ) m m
- We i g h t
1 6 K g
- A c c e s s o r i e s
P e d a l S w i t c h : D P - 2
( 7 7 1 0 6 1 0 0 0 0 )
O w n e r ’s M a n u a l ( E )
( K 6 0 1 8 2 8 8 )
O w n e r ’s M a n u a l ( J )
( K 6 0 1 8 2 9 1 )
M i d i G u i d e
( K 6 0 1 8 1 0 9 )
M i d i I m p l e m e n t a t i o n M a n u a l
( K 6 0 1 8 2 9 2 )
!
MAINS CABLE H05VV+POL.SOCKET
230V
(J3439150)
!
CABLE 49B/35JT 2X18 AWG-C17
117V
(J3439128)
!
MAINS CABLE DC 545 J03
100V
(13499108)
!
CABLE BS/13/H05VV-F3G 0.75-V
230VE
(13499152RI)
!
CABLE SAA/3-OA3CCFC 3X0.75-V
240VA
(13499150RI)
- O p t i o n s
S t e r e o H e a d p h o n e
: R H - 2 0 / 8 0 / 1 2 0 :
P e d a l S w i t c h
: D P - 2 / 6 , B O S S F S 5 U
E x p r e s s i o n p e d a l
: E V - 5
C o n n e c t i n g C a b l e
: P J - 1 M , P C S - 1 0 0 P W
M I D I / S Y N C c a b l e
: M S C - 1 5 / 2 5 / 5 0
Vo i c e E x p a n s i o n b o a r d
: V E s e r i e s
Issued by RES
Copyright © 1997 by ROLAND CORPORATION
DISASSEMBLY
1
SN00018
K6018299
Printed in Italy (AF00) (AD)
First Edition
Summary of Contents for A-70
Page 2: ...2 A 70 Sept 1997 LOCATION OF CONTROLS REAR VIEW ...
Page 3: ...3 A 70 Sept 1997 EXPLODED VIEW N 1 ...
Page 4: ...4 A 70 Sept 1997 KEYBOARD PARTS LIST 76 KEY KEYBOARD TP 8S AT 7699510000 EXPLODED VIEW N 2 ...
Page 5: ...5 A 70 Sept 1997 BLOCK DIAGRAM ...
Page 22: ...22 A 70 Sept 1997 ...
Page 23: ...A 70 Sept 1997 23 ...
Page 24: ...24 A 70 Sept 1997 ...
Page 25: ...A 70 Sept 1997 25 ...
Page 26: ...26 A 70 Sept 1997 ...
Page 27: ...A 70 Sept 1997 27 ...