Roland SDE-3000 Service Notes

FEB. 5.1984
SDE-1000/3000
o
MAIN CONTROLLER TIMING DIAGRAM
IC12 (SDE-1000)/IC31 (SDE-3000)
MSCK
SAH
DIN
D 11
D10
D 9
D 8
D 7
D 6
D 5
D A
D 3
D 2
D 1
D 0
DOUT
A0-A7
R/W MODEt
RS16-64 J
REFRESH MODE-i
RS16-64 J
CAS 1
CAS 2
CAS 3
I I I
R/W MODE-i
wr -I
RAM 1
RAM 2
RAM 3
DB 0 -l OFFSET DAT/
DB 1-1 «*»«**
DB 2 RASFORCOMfWCINQRAM
DB 3 CAS FOR OOMPWCING RAM
DB
DB 5
DB 6
DB 7
R/W MODE
RS16-64
REFRESH MODE
RS16-64
DB 2

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