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Circuit Diagram (Main) - Roland Boss AD-3 Service Notes

Acoustic instrument processor

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AD-3
1
2
3
4
5
6
7
8
A
CIRCUIT DIAGRAM (MAIN)/回路図 (MAIN)
B
CN1
1
C
1
+9V
2
2
MODE
3
3
DGND
4
4
INPUT
5
5
AGND
6
6
OUTPUT R
7
7
AGND
8
D
8
OUTPUT L
9
9
+8V
10
10
MUTE
WIRING
E
F
G
H
I
J
+8V
K
C104
100/16
C15
0.1
L
R24
M
10k
N
R25
C116
10k
100/10
O
C111
P
100/16
R1
1k
Q
D1
MTZ5.6C
POWER
LED1
L-34HSDL
R
S
T
U
V
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
C101
47/16
10/16
R16
1M
C102
47/16
R15
C13
560k
0.1
L3
N1608Z601T01
C17
C105
C106
0.1
10/16
L1
RPE132-901F104Z50
D3
Q1
1SS352
2SA1312GR
C115
47/16
Regulator
R29
100
IC1
A+3V
NJU7201U32(TE1)
2
C
3
R28
IN
OUT
O
10k
M
1
C103
100/10
C14
0.1
IC6
10
VDD
A9
A8
A7
A+4V
C26
A6
0.1
A5
A4
20
VSS
A3
A2
A1
A0
C22
0.1
OE
CAS
RAS
WE
DQ3
DQ2
DQ1
DQ0
R101
0.33(1/2W)
MSM51V4256A-70JS
C1
C112
DRAM
0.1
100/16
IC4
6
7
D+3V
VCC
IPK
5
8
L2
VIN-
CD
3
1
ELC08D151E
CT
CS
4
2
GND
ES
C36
180p
IR3M03A
R37
C35
C113
1.6kF
0.1
470/16
D2
SB07-03C
R37
1kF
DC/DC Converter
C10
C107
C12
C109
0.1
0.1
10/16
AD/DA
IC2
1
28
VSS-AD
VREF-D
2
27
VDD-AD
VSS-OP
3
26
VIN-L
VOUT-L
4
25
VREF-A
VDD-OP
5
24
VIN-R
VOUT-R
6
23
VAD-CN
VDD-DA
7
22
VAD-CP
VSS-DA
C108
8
21
C11
C110
TEST1
TEST2
47/6.3
9
20
0.1
47/6.3
OVERFL
TEST3
R11
47
10
19
VDD-DG
DATA-I
11
18
VSS-DG
DATA-O
12
17
SYSCLK
WS
13
16
L3MODE
BCLK
14
15
L3CLK
L3DATA
UDA1340
C16
0.1
R39
47
1
8
8
8
9
9
9
9
9
9
9
9
0
8
8
8
7
7
6
6
7
7
7
7
8
8
7
8
9
2
3
4
5
6
7
8
9
0
4
5
6
1
0
8
7
4
3
7
6
1
0
A
R
R
T
T
T
T
T
T
T
T
O
T
T
S
D
D
A
A
L
L
B
B
M
M
IC5
C
A
A
B
B
B
B
B
B
B
B
S
R
R
Y
A
A
D
D
R
R
C
C
C
C
TC203C040AF-001
O
M
M
0
1
2
3
4
5
6
7
C
C
C
I
0
1
0
1
C
C
K
K
K
K
U
T
T
2
K
K
K
K
0
1
0
1
T
E
E
O
I
0
1
5
S
S
N
OSC1
T
T
1
35
EA16
34
4
EA15
CKO
33
EA14
32
EA13
31
EA12
R0
30
43
EA11
DIV2
27
42
EA10
DIV1
5
18
EA9
15
17
1
EA8
RST
14
14
EA7
13
12
50
EA6
A2
12
10
49
EA5
A1
11
8
48
EA4
A0
DSP
9
9
EA3
8
11
45
EA2
CS
7
13
46
EA1
RD
6
16
47
EA0
WR
16
20
61
RAS
CD7
17
19
60
CAS
CD6
4
23
59
WE
CD5
3
58
CD4
39
57
ED7
CD3
19
38
56
ED6
CD2
18
37
55
ED5
CD1
2
36
54
ED4
CD0
1
24
ED3
22
64
ED2
INT1
25
63
ED1
INT
26
ED0
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
D
V
V
D
D
D
V
D
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
D
D
D
D
D
D
D
D
D
D
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
D
D
S
D
D
S
S
S
D
S
9
8
7
7
7
6
6
5
5
4
4
2
2
1
7
3
9
8
7
6
6
5
4
2
6
2
0
2
9
5
2
6
2
3
1
4
0
9
1
5
1
3
8
9
5
2
1
8
C27
0.1
C28
0.1
0.1
C29
C30
0.1
C31
0.1
C32
0.1
C33
0.1
C34
0.1
8
R19
10k
C19
R20
C118
R18
R13
10/16
10k
330
6
A+4V
5
C8
0.0068
R22
10k
C20
R21
C117
R23
R12
10/16
10k
330
2
A+4V
3
C9
0.0068
DATA
CLK
MODE
RESET
IC7
6
7
OUT
VCC
R31
1
5
NC
NC
X1
3
8
12k
NC
NC
33.8588MHz
2
4
C23
IN
GND
0.1
R30
M51955AFP
C24 5p
R33
10k
1M
C25
5p
CPU CLK=2.1162MHz
R32
10k
36
1
P11/TXD
P12/SCLK
35
2
P10/RXD
P13/SDATA
34
3
P07
P14/CNTR0
33
4
P06
P20/AN0
32
5
P05
P21/AN1
31
6
P04
P22/AN2
30
CPU
7
P03
P23/AN3
29
8
P02
P24/AN4
28
9
P01
P25/AN5
27
10
P00
P26/AN6
26
11
P37/INT0
P27/AN7
25
12
P36/LED6/INT1
VREF
24
13
P35/LED5
RESET
23
14
P34/LED4
CNVSS
22
15
P33/LED3
VCC
21
16
P32/LED2
XIN
20
17
P31/LED1
XOUT
19
18
P30/LED0
VSS
IC3
C114
M37531M4-610FP
R10
C7
100/10
0.1
4.7k
Dec. 1998
C18
0.0022
82p
Lch
27k
7
IC8B
M5218AFP
C21
0.0022
82p
Rch
27k
1
IC8A
M5218AFP
8
IC8C
4
M5218AFP
ANTI-FEEDBACK
FREQ
3
2
VR1
50kB
1
BOTTOM
3
2
VR2
50kB
1
TOP
3
2
VR3
50kB
1
2x2CHORUS
3
R9
2
VR4
100
50kB
1
R2
100
R3
100
R4
100
REVERB
3
R5
100
2
R6
100
VR5
50kB
1
C2
C6
R7
0.1
0.1
100k
C3
C4
C5
0.1
0.1
0.1
R8
1k
R38
1k
LED2
ANTI-FEEDBACK AUTO
L-34HDSL
R14
1k
LED3
CHORUS
L-34HDSL
LED4
R17
1k
PEAK
L-34HDSL
ANTI-FEEDBACK AUTO
R34
R35
SW1
100k
1k
SKQKAH
CHORUS
R27
R26
SW2
100k
1k
SKQKAH

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