Table of Contents
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Schematic
INPUT/OUTPUT PCB
MAIN PCB
Lm
C6 100pF
XLR2
D2
R
R7 10K1%
1N4148
IC1A
NJM4558DD
+15V
X2
R8 10K1%
3
2
C3
X1
PLUG5
ZD1
1
0.047uF
PLUG5
1N5226 3.3V
R6 10K1%
3
C4
0.047uF
GND
5
5
L
4
4
C5
-15V
100pF
GND
3
3
R5 10K1%
R
2
2
C1 100pF
XLR1
SHIELD
1
1
L
R3 10K1%
IC1B
NJM4558DD
R1 10K1%
3
6
7
R2 10K1%
5
LD1 LU204615
R4
R10
C2
10K1%
2.2K
C
100pF
R9
2.2K
R4
2.2K
-10dB -5dB
0dB
FLT
GRD
SW1a
1
X2
X3
2
+15V
C2
3
3
3
R8
10uF25V
+15V
6
100K
5
4
2
2
SW1b
1
1
-15V
-15V
C8
PLUG3
PLUG3
103
X01
X1
SWITCH PCB
2
2
D03
1
1
PLUG2
PLUG2
C58
472/400V
D6
D8
SW1
F1
AC
X4
1N4002
1N4002
POWER SW
FUSE 0.5A
3
3
PT1
C49
AC 220/110 V
0.1
GND
2
2
D7
D9
1
1
PT
C50
0.1
1N4002
1N4002
AC
SW110-220
PLUG3
R57
294K1%
6
4
ENHANCED BASS
1
3
SW3
IC14A
IC14B
SW2
NJM4558DD
C67
NJM4558DD
10uF25V
R59
R52
R56
4.53K1%
20K1%
20K1%
6
C60
C61
7
+15V
5
R53
2
0.22
0.22
VR7
1
20K1%
3
10KA
-15V
D3
1N4148
C26
IC3A
ZD2
NJM4558DD
D4
1N5226 3.3V
R14
1uF50V
Lm
C25
5.76K1%
C5
IC2A
1N4148
+15V
NJM4558DD
+15V
2
1uF50V
R15
10uF25V
1
2
C9
R18
2
3
1
10K1%
3
100
VR1A
0.1
-15V
10KA
C19 10uF25V
-15V
41 STEP
C10
D5
R12
C3
IC2B
NJM4558DD
5.76K1%
R26100
6
1N4148
0.1
R13
10uF25V
7
6
5
5
7
C18
10K1%
5
VR1B
10uF25V
-6V
IC3B
10KA
C17
NJM4558DD
0.1
C16
0.1
R28
+6V
GA
40.2K1%
Q1
+15V
RA
2SA1317
C20
2
C29
0.1
C22
C21
1
3
10uF25V
1n
1n
-15V
R3
R25
R27
IC6A
100
787R1%
162K1%
TL072CN
R2
100
C12
C31
+15V
R23
10n
IC6B
10uF25V
C23
R5
787R1%
6
47n
TL072CN
2.2K
7
R17
R21
+3dB +6dB +Vcc
5
C8
7.87K1%
787K1%
IC1
0.1
LB1403N
C11
100pF
C24
IN
1uF 50V
C28
C1
C14 0.1
R22 909R1%
R6
1uF 50V
36K
R7
10uF25V
10K
R29
R16
R24 909R1%
R20 453R1%
D1
Q2
C13 0.1
453R1%
453R1%
2SA1317
R19 453R1%
1N4148
Lm
R11
20K
C15
C6
0.1
0.1
-15V
IC8
NJM78L05A
R1
3
1
+Vin
+Vout
2.2K
+15V
IC11
IC4
NJM78M15A
NJM78L06A
1
3
3
1
+Vin
+Vout
+Vin
+Vout
C52
C4
C54
C55
C56
C51
0.047uF
0.047uF
0.047uF
0.047uF
2200uF25V
100uF25V
C47
2200uF25V
C48
C7
C53
C59
C58
0.047uF
0.047uF
0.047uF
0.047uF
100uF25V
2
3
2
3
-Vin
-Vout
-Vin
-Vout
IC10
IC5
NJM79M15FA
NJM79L06A
-15V
Page 9
S C
4 CH
4 CH/DIAG
IC15A
D10
R55
NJM4558DD
Lm
2 CH
14.7K1%
C62
1N4148
47nF
SW1A
+15V
4WAY4
2
2
1
R60
R58
1
6
C63
3
7
3
10uF25V
14.7K1%
16.5K1%
5
4
-15V
R54
IC15B
97.6K1%
C57
5
6
NJM4558DD
0.22
VR3
10KA
SW1B
4WAY4
8
7
C64
9
10uF25V
10
11
12
VR4
R50
R51
4.53K1%
4.53K1%
10KA
SW1D
4WAY4
20
19
1
48
21
C66 10uF25V
2
47
22
3
46
23
24
4
45
VR6
10KA
5
44
C36
SW1C
6
43
4WAY4
R34
0.47
14
13
7
42
3.83K1%
LOAD
R39
C41
15
8
41
33.2K1%
1uF25V NP
C65
RESET
16
10uF25V
9
40
IC7
SSM2005
DATA
17
18
10
39
11
38
VR5
10KA
12
37
13
36
14
35
LOAD
15
34
CLOCK
16
33
R41
17
32
274K1%
R38
18
31
100K1%
R32
19
30
C42
C37
C43
274K1%
1uF25V NP
1uF25V NP
0.1
20
29
C39
C35
0.1
0.22
21
28
22
27
23
26
24
25
R33
4.7M
R30
C27
C30
C33
10K
1uF50V
1uF25V NP
22uF25V
C34
1uF 50V
R31
R35
1K1%
1K1%
C32
C38
1uF 50V
1uF 50V
+5V
+5V
IC9
JP36
1
14
VDD
Vss
2
13
0
RB5
RBO
3
12
C44
RB4
RB1
C45
4
11
0.1
RB3
RB2
0.1
5
10
RC5
RC0
6
9
RC4
RC1
7
8
RC3
RC2
PIC16C505
+6V
-6V
D11
Lm
1N4148
X3
IC12A
PLUG7
+15V
NJM4558DD
X5
2
SUB
1
1
1
SUB
3
LF
2
2
LF
-15V
D12
RF
3
3
RF
1N4148
GND
IC12B
4
4
GND
NJM4558DD
6
SHIELD
7
5
5
SHIELD
5
LS
6
6
LS
VR2A
RS
D14
R37
10KB
1
3
7
7
RS
3.32K1%
1N4148
IC13A
+15V
NJM4558DD
PLUG7
2
1
3
IC4B
-15V
NJM4558DD
6
VR2B
D13
R36
10KB
4
6
5
3.32K1%
1N4148
IC13B
NJM4558DD
6
7
5
+15V
-15V
R46
R47
Q4
10K
2SC2878
390K
R42
+5V
1K
C40
Q6
0.22
2SA1317
R44
1.5K
Q5
2SC2878
Q3
R45
2SC2878
FADER
1K
R43
R40
1K
100K
C46
0.1
NOISE
SW2
6
4
NOISE
1
3
RESET
LOAD
NOISE
DATA
R61
51K
CLOCK
FADER
+5V
Q10
2SC2878
C19 10uF25V
R56 270
R51 33
R60 10K1%
R54 4.7K
+15V
R52
C22
47k
XLR7
R59
0.047uF
SUB
10K1%
2
C23 10uF25V
R61 270
R57 33
1
3
3
IC4A
R554.7k
R58
NJM4558DD
47k
Q11
C21
-15V
0.047uF
2SC2878
Q2
2SC2878
C10 10uF25V
R14 270
R16 33
R15 10K1%
R12 4.7K
+15V
C11
0.047uF
R17
IC2A
47k
XLR3
R13
NJM4558DD
LF
10K1%
2
C12 10uF25V
1
R18 270
R21 33
3
3
R194.7k
R20
47k
C14
Q3
-15V
0.047uF
2SC2878
Q4
2SC2878
C13 10uF25V
R24 270
R22 33
R26 10K1%
R27 4.7K
R23
IC2B
47k
XLR4
R25
NJM4558DD
RF
10K1%
6
C16 10uF25V
R28 270
R30 33
7
3
5
R294.7k
R33
47k
Q5
2SC2878
Q6
2SC2878
C15 10uF25V
R34 270
R31 33
R43 10K1%
R35 4.7K
+15V
R32
IC3A
47k
XLR5
R38
NJM4558DD
LS
10K1%
2
C18 10uF25V
R40 270
R37 33
1
3
3
R364.7k
7
R39
47k
-15V
Q7
2SC2878
Q8
2SC2878
C17 10uF25V
R44 270
R41 33
R50 10K1%
R47
4.7K
R42
IC3B
47k
XLR6
R45
NJM4558DD
RS
10K1%
6
C20 10uF25V
R53 270
R46 33
7
3
5
R484.7k
R49
47k
Q9
2SC2878
-15V
R11
390K
Q1
2SA1317
R9 1K
D1
R10
C7
1N4148
680K
4.7uF25V
+15V
D2
1N4148
C9
220uF25V
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