Boss DD-3A - Circuit Diagram

11
May 2002 DD-3(T)
CIRCUIT DIAGRAM
fig.circit
AC
ADAPTOR
9V
Batte ry
INPUT
DIRECT
OUT
OUTPUT
LED BOARD
(PCB G 292719900 3/4)
CHECK
D.TIME
MODE
F.BACK E.LEVEL
VR BOARD
(PCB G2927199 00 2/4)
DQ2
17
11
13
15
16
12
14
8
7
6
920
19
18
10
25
2
22
21
23
3
1
5
4
SW BOARD
(PCB G2927199 00 4/4)
JM-0404
(PCB G2927199 00 1/4)
MAIN BOARD
RED
GRY
BRN
YEL
BLU
EARTH TERMINAL
EARTH TERMINAL
10
25
VIO
BLK
20
19
18
13
11
17
15
16
12
BRN
RED
ORG
9
6
7
8
14YEL
45
GRN
ORG
WHT
A7
A6
A5
A4
A3
A2
A1
A0
DQ1
DQ2
DQ3
DQ4
A7
A6
A5
A4
A3
A2
A1
A0
DQ4
DQ3
DQ2
DQ1
+
+
A9
+
5D
D D
D
D
D
D
D
D
D
+
A9
D
D
D
+
5D
D
D
+
A9
+
A9
+
5D
+
5D
+
A9
+
A9
+
A9
+
A9
+
A9
+
A9
+
5D
+
A9
+
A9
+
A9
+
A9
+
A9
+
A9
+
5D
+
+
+
++
D
+
A9
D
D
+
A9
+
A9
+
5D
D
+
A9
D
+
5D
D
+
A9
D
D
D
D
D
D
+
5D
+
5D
D
D
D
R36
10k
R38
10k
R37
10k
C31
0.0047
C30
0.0027
R45
10k
R39
10k
R42
10k
C32
0.0068
C35
470p
R55
10k
R49
10k
R51
10k
C39
0.018
C41
220p
R4
47k
R3
10k
C2
0.0047
C4
33p
+
-
IC1B
M5218AFP
6
5
7
C3
10/16
R1
100k
LED1
L-34HDSL
12
C1
100/16
R63
10k
R59
10k
C46
47/16
R54
10k
C43
1/50
C6
0.0047
R11
47k
R10
10k
R14
33k
C8
33p
C47
0.047
R60
1M
R52
10k
R44
10k
R47
100k
C36
10/16
R43
1k
R7
100k
D9
GS1G
1 2
R62
220k
R58
220k
C45
1/50
R61
1M
C48
0.047
R8
47k
IC3A
HD14066BP
1 2
13
IC3D
HD14066BP
11 10
12
IC4A
TC74HC00AF
1
2
3
IC4B
TC74HC00AF
4
5
6
R13
33k
R6
1M
R9
33k
R24
100
R23
100k
1 2
IC4D
TC74HC00AF
12
13
11
C20
680p
R25
100k
R32
2.2k
C23
150pECQP
R40
10k
IC3B
HD14066BP
4 3
5
C33
470pECQP
R33
47k
IC3C
HD14066BP
8 9
6
C17
1000pECQP
R34
1.5k
R35
2.2k
IC9
TA78L05F
IN
3
OUT
1
COM
2
C28
0.1
C29
0.1
C27
47/16
IC3E
HD14066BP
14
7
EMI1
DSS306-55FZ103N
1 2
+
-
IC1A
M5218AFP
2
3
1
+
-
IC1C
M5218AFP
84
+
-
IC8B
uPC4072G2
6
5
7
R27
10k
C26
0.1
RH03ADC13X (1kB)
RT1
1
2
3
C25
0.1
IC2
SA571D
RECT CAP1
1
RECT IN1
2
AG CELL IN1
3
GND
4
INV. IN1
5
RES. R31
6
OUTPUT1
7
THD TRIM1
8
THD TRIM2
9
OUTPUT2
10
RES. R32
11
INV. IN2
12
VCC
13
AG CELL IN2
14
RECT IN2
15
RECT CAP2
16
C51
1/50
C49
1/50
C50
1/50
C38
10/16
C42
100p
R48
22k
C44
0.0027
C40
0.0027
R57
22k
R53
22k
R56
47k
R50
47k
R41
3.3k
R46
22k
C37
10/16
C34
0.68T
R21
10k
C16
0.0027
R20
10k
R19
10k
C13
150p
C15
0.0012
R16
4.7k
C14
0.68T
C7
100p
C9
0.0027
R15 47k
R12
22k
R17
2.2k
C11
47/16
C10
10/16
RH03ADCS4X (47kB)
RT2
1
2
3
VR2
RK0971110-50kB
1
2
3
VR1
RK0971110-50kB
1
2
3
VR3
RK0971110-10kA
1
2
3
SW1A
SRBM14011
12
13
14 11
15
SW1B
21
22
23 25
24
R65
10k
JK4
HEC0470-01-630
2
1
3
C22
22p
JK2
HTJ-064-14D
1
2
3
R64
10k
JK1
HTJ-064-13D
1
2
3
+
-
IC8C
uPC4072G2
84
IC10A
NJM319M
4
5
12
3
R68
33k
R69
2.2k
IC10B
NJM319M
9
10
7
8
IC10C
NJM319M
116
C52
0.1
+
-
IC8A
uPC4072G2
2
3
1
Q4
2SC3324GR
1
2 3
Q3
2SC3324GR
1
2 3
Q8
2SC3324GR
1
2 3
Q5
2SC3324GR
1
2 3
Q9
2SC3324GR
1
2 3
Q7
2SC3324GR
1
2 3
Q10
2SK879Y
3
12
Q6
2SK880GR
3
1 2
Q11
2SK880GR
3
1 2
Q1
2SC3324GR
1
2 3
D1
1SS355
12
R30
150
R31
220
D4
1SS355
12
D7
1SS355
12
+
-
IC5
NJM311M
3
2
7
1
84 6 5
D6
1SS355
12
D8
1SS355
12
IC4C
TC74HC00AF
9
10
8
C24
47/16
D5
1SS355
1 2
RA1
RKM14L472-942F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D3
1SS355
12
R26
1k
R67
33k
Q2
2SK879Y
3
12
C5
0.047
D2
1SS355
12
R5
10k
R22
10k
R18
10k
C12
0.0068
IC7
MN51010RBA
SERIALI
30
D11
45
D10
44
D9
43
D8
42
D7
41
D6
40
D5
39
D4
38
D3
37
D2
36
D1
35
D0
34
NORMSH
28
XI
84
VCOOUT
83
CVIN1
82
CVIN2
81
FETSW
25
MUTE
59
TIME4
63
TIME6
65
HOLD
26
EFSW
23
GND
31
TIME10
69
TIME11
70
GND
75
VDD
73
VDD
33
RESET
76
DQ4
7
DQ3
5
DQ2
10
DQ1
9
A7
17
A6
14
A5
15
A4
16
A3
18
A2
19
A1
20
A0
21
NRAS
12
CAS1
6
NWE
11
NOE
8
C56
47/16
R70
22
C55
0.1
R71
33k
R66
560
D10
RD5.6S B3
12
R2
1k
JK3
HTJ-064-14I
1
2
4
IC4E
TC74HC00AF
147
RA4
CRN34103J
1 8
2 7
3 6
4 5
R29 470
C54
0.1
C53
0.1
IC11
M11B416256A-35J
VCC
1
DQ1
2
DQ2
3
DQ3
4
DQ4
5
VCC
6
DQ5
7
DQ6
8
DQ7
9
DQ8
10
NC
11
NC
12
WE
13
RAS
14
NC
15
A0
16
A1
17
A2
18
A3
19
VCC
20
VSS
21
A4
22
A5
23
A6
24
A7
25
A8
26
OE
27
UCAS
28
LCAS
29
NC
30
DQ9
31
DQ10
32
DQ11
33
DQ12
34
VSS
35
DQ13
36
DQ14
37
DQ15
38
DQ16
39
VSS
40
C18
0.01
RA3
CRN34103J
1 8
2 7
3 6
4 5
RA2
CRN34103J
1 8
2 7
3 6
4 5