Roland DS-90A Service Notes

DS-90/90A Feb. 2000
9
CIRCUIT DIAGRAM (DA BOARD)
POWER LED
Green
DIGITAL IN LED
Orange
Rch
Rch
Lch
Lch
D
D
D D
D
D
+
5D
+
5D
D
+
5D
D
D
+
5D
D
+
5D
D
+
5D
D
+
5D
D
A
A
-15
+
15
+
5A
D
D
D
A
AA A
A
A
+
15
-15
+
5D
D
D
D
+
15
-15AAA
DA
+
5D
+
5D
D
+
5D
A
-15
A
+
15
AAA
D D
D
D
D
A
A
A
DA D
D
A
D
+
5D
D D
D
D A
+
5A
R41
75
R42
1k
R32
10k
R30
10k
R25
10k
R20
15k
C34
0.1
C33
0.01
C10
470p
R17
1k
R23
2.2k
R8
2.2k
R13
1k
SW1A
SSSF123800
11
12
13
14 15
C41
0.047
R39
47k
R34
2.2k
IC4
TC74HC595AP
QH-
9
QH
7
QG
6
QF
5
QE
4
QD
3
QC
2
QB
1
QA
15
SI
14
SCLR
10
G
13
SCK
11
RCK
12
VCC
16
GND
8
JK1
TORX178A
Optical IN
Coaxial IN
Coaxial Through
2 3
1
JK2B
YKC21-3044
22
21
JK2A
YKC21-3044
12
11
D1
ZDi
2.0V
1 2
C23
0.1
R24
10k
IC1A
TL072CP
+
-
2
3
1
C16
47/16
R18
220
R19
10k
R7
10k
R3
15k
R6
15k
C2
470p
C6
470p
R1
10k
Q1
2SC2878A
3
1 2
C1
47/16
R2
47k
R4
220
R5
10k
IC1B
TL072CP
+
-
6
5
7
Q2
2SA1015GR
3
2 1
R11
47k
R9
47k
R10
47k
Q3
2SC1815GR
3
1 2
R26
47k
R12
47k
C13
0.1
R45
75
C27
0.1
R43
47k
R36
390
R29
390
C40
100/35
IC3G
TC74HCU04AP
147
C32
100/35
R35
10 1/2W
R31
220
R37
220
IC2
AK4324
DVSS
1
DVDD
2
CKS
3
MCLK
4
PD
5
BICK
6
SDATA
7
LRCK
8
SMUTE
9
DFS
10
DEM0
11
DEM1
12
DIF0
13
DIF1
14
DIF2
15
AOUTR-
16
AOUTR+
17
AOUTL-
18
AOUTL+
19
AVSS
20
VREF
21
AVDD
22
DZFR
23
DZFL
24
C8
47/35
C7
47/35
Q4
2SA1015GR
3
2 1
R22
47k
R14
47k
R27
47k
R16
47k
C14
0.1
CN1
S6B-PH-K-S
1
1
2
2
3
3
4
4
5
5
6
6
C21
0.1
Q6
2SC2878A
3
1 2
C11
470p
R28
47k
R21
15k
SW1B
SSSF123800
21
22
23
24 25
C18
0.47
C17
0.47
C4
0.47
C3
0.47
220
R40
0.1
C22
0.1
C20
0.1
C15
SW2C
SSSF120500
10 20
JK2C
YKC21-3044
AB
10
SW1C
SSSF123800
10 20
IC3B
TC74HCU04AP
3 4
IC3C
TC74HCU04AP
5 6
IC3A
TC74HCU04AP
12
C28
0.1
C25
0.1
R15
47k
Q5
2SC1815GR
3
1 2
Q7
2SC1815GR
3
1 2
R44
47k
R46
47k
Q8
2SC1815GR
3
1 2
L1
BL02RN2-R62
C42
0.1
C37
47/16 BP
C38
0.01
SW2B
SSSF120500
21
23 22
IC3D
TC74HCU04AP
98
IC3E
TC74HCU04AP
1110
IC3F
TC74HCU04AP
1312
FL1
PT-10
1
2
34
6
1020
C29
10/35
C36
0.1
TER1
JH-8M3
1 2 3
4
0.1
C30
C35
0.1
TER2
JH-8M3
1 2 3
4
C24
0.1
0.1
C9
0.1
C26
IC5
CS8412-CP
DGND
8
M3
17
M2
18
M1
24
M0
23
VD+
7
ERF
25
CBL
15
V
28
U
14
C
1
FSYNC
11
SCK
12
SDATA
26
RXP
9
RXN
10
VA+
22
FILT
20
MCK
19
CS12/FCK
13
SEL
16
C0/E0
6
CA/E1
5
CB/E2
4
CC/F0
3
CD/F1
2
CE/F2
27
AGND
21
IC1C
TL072CP
+
-
84
SW2A
SSSF120500
11
13 12
CN3
4P-SAN
1
1
2
2
3
3
4
4
CN2
S4B-PH-K-S
1
1
2
2
3
3
4
4
0.1
C5
L2 BLM31B601SPT
L6 BLM31B601SPT
L5 BLM31B601SPT
L4 BLM31B601SPT
C12
0.1
C19
100/35
L3 BLM31B601SPT
R47
4.7k
LED2
12
CN2
S4B-PH-K-S
1
1
2
2
3
3
4
4
LED1
12
TO POWER AMP BOARD CN3
TO LED BOARD
Wiring
TO HEAD AMP BOARD CN6
LED BOARD (Analog Sheet)
NIU
DS-90A
S/No.BN22000 UP
NIU
DS-90A
S/No.BN22000 UP
4.7K
for DS-90A or NEW DA

Roland DS-90A Specifications

General

Brand	Roland
Model	DS-90A
Category	Speakers
Language	English