Roland SDE-3000 Service Notes

SDE-1000/3000
FEB. 5,1984
MAIN CONTROLLER BLOCK DIAGRAM
IC12 (SDE-1000)/IC31 (SDE-3000)
CO CO
A A
CO
CO
CO
CM
CO
If)
00
in
s
CO
in
in
in
CO
in
CM
in
— o
in in
5
00
t
A
TIMING GENERATOR
DIVIDE BY 216
A
CM
A
g
V
in
u
o
V
CO
(O
00
CO
CO
CO
DATA SELECTORS
DATA SELECTORS
***REHASH COUNTER
ck PRESETTABLE ADDRESS COUNTER
*>ck ADDRESS COUNTER
t T T T T T f T T T T T T
DATA SELECTORS
SHIFT REGISTERS
ck D-FLIP-FLOPS
in
CO
A
5
CO
CO
A
i
RAM BANK SELECTOR
SET
CO
O)
A
CO
SEL
DATA SELECTORS
V
oo
o
q
V
Q
V
o
CM
CM
CM
CO
CM
in
CM
G
V
oo
CM
CM
Q
V
8
CO
CM
CO

Roland SDE-3000 Specifications

General

Type	Digital Delay
Output Impedance	1 kOhm
Inputs	1/4" phone jack
Outputs	1/4" phone jack
Total Harmonic Distortion	0.05%
Power Supply	AC 117 V