Korg Monotron User's Manual
1
1
2
2
3
3
4
4
D D
C C
B B
A A
MODEL TITLE
DATE DESIGNED BY
2010.10.13
LM324
12
13
14
IC2D
LM324
3
2
1
IC2A
LM324
5
6
7
IC2B
LM324
10
9
8
IC2C
LM324
411
V+
V-
IC2E
IMX9
Q1
SFW4R-2STE1LF
CN1
SN74AHC14
5 6
IC3C
SN74AHC14
3 4
IC3B
SN74AHC14
1 2
IC3A
SN74AHC14
11 10
IC3E
SN74AHC14
9 8
IC3D
2SK433
F2
2SK433
F1
2SC4617
Q6
XV09211YNPV20U(NC)1B10K
10K B
VR4A
SN74AHC14
13 12
IC3F
SN74AHC14
147
GND
VCC
IC3G
2SA1774
Q3
SS-23D03 (6MM KNOB GE)
SW1A
Bias
1K
R17
0.01u
C8
1K
R34
4.7K
R8
820
R2
100
R1
100K
R5
VCC
VCC
RIBB ON 10KB
VCC
100K
R13
2.2K
R14
0.01u
C9
100K
R24
0.01u
C10
NU
R31
1K
R26
pitch
cuttoff
pitch
PATCH SELECT
cuttoff
330K
R42
100K
R58
330
R62
1u
C14
1u
C17
XV09211YNPV20U1B10K
10K B
VR6A
VCC
10K
R70
2SK433
F3
VCC
3300p
C21
220
R68
4.7K
R72
330K
R60
1SS355
D1
1SS355
D2
10u
16V
C19
XV09211YNPV20U1B10K
10K B
VR7A
RK14J11A000G
10K B
VR2A
audio
audio
270K
R81
68K
R79
22K
R77
Headph one s
TPS61071
1
2
3 4
5
6
SW
GND
EN
VBAT
VOUT
FB
IC1
battery box AA Ax2
CN2
SLF6028T-4R7M1R6-PF
L1
1u
C4
1u
C1
10u16V
C2
820K
R3
91K
R6
VCC VCC
0.1u
C13
0.1u
C7
0.1u
C18
VCO
LFO
VCF
AMP
LFO reset
CUTOFF
RESONANCE
VOLUME
+5V
4.7K
R35
PITCH
LFO
RATE
XV09211YN PV20U1B10K
10K B
VR5A
SS-23D03 (6MM KNOB GE)
SW1B
LFO INT.
100K
R61
NU
C5
NU
C23
100K
R39
POWER
2SA1774
Q5
10K
R23
27K
R10
10K
R9
1M
R22
TPA6111A2DR
7
2 1
6
IC5A
100p
C30
330u6.3V
C31
0.01u
C26
1u
C25
0
R83
0
R65
470
R66
0.1u
C27
cw
5.6K
R76
XV09211YNPV20U1B10K
10K BVR3A
150K
R18
100
R21
0.01u
50V
C11
24.49mV@0deg
26.29mV@20deg
whole ribbon Vbe offset:
2SC 4617
Q8
2SC4617
Q7
2.2K
R4
1K
R27
47K
R37
1K
R30
2.2K
R64
2.2K
R67
2SC4617
Q2
VCO enable
10K
R40
10K
R38
2.2K
R78
LM324
12
13
14
IC4D
LM324
411
V+
V-
IC4E
LM324
3
2
1
IC4A
LM324
5
6
7
IC4B
LM324
10
9
8
IC4C
2SC4617
Q14
2SC4617
Q13
2SC4617
Q12
VCC
0.01u
C20
10K
R54
3.3K
R53
18K
R46
10K
R59
27K
R57
68K
R50
0.1u
C28
TPA6111A2DR
84
VDD
GND
3
BYPASS
5
SHTDN
IC5B
VCC
1u
C29
10K
R44
6.8K
R75
10K
R56
cuttoff
220K
R28
470
R29
10K
R25
68K
R82
0.1u
C6
3300p
C22
10K
R16
10K
R15
VCC
0
R41
10u
C15
VA
VAVA
330uF
6.3V
C3
B2B-ZR(LF)(SN)
CN5
100u6.3V
C33
23mm 0.2W
Internal Speaker
HNS-XXXX
LGY2209-0101FC
CN3
LGY2209-0101FC
CN4
2SC4617
Q10
1K
R51
10K
R52
0.1u
C16
10K
R45
100
VR1
F-3362S B100OHM-MO
28.08mV@40deg
1K
R20
2SC4617
Q9
SML-E12UWT86
LED1
NU
R71
NU
R69
2SC4617
Q11
47
R4847R43
390
R49
1K
R33
4.7K
R32
10K
R55
10K
R47
10u
16V
C24
100p
C32
1K
R11
VA VA
1
R12
VA
VA
CLEAR SHAFT
NU
R19
Bias
10K
R73
VA
2SC4617
Q4
47K
R80
1K
R7
VCC
10K
R63
4.7K
R74
10K
R36
NU
C12
VR3 B
VR6 B
VR7 B
VR4 B
VR5 B
VR2 B
SW1 C
FRAME GROUNDS
TP1
pitch
TP2
gate
TP3
GND
TP4
Vbias
TP5
VCC
TP6
rate
TP7
LFO
TP8
VCO
TP9
cutoff
LINE IN
VCF gate
Any modification to any monotron will immediately void its warranty.
Korg or any of its affiliates will not accept responsibility for any damages, personal loss or injury that may result from any modification to the device.
SCHEMATIC
FOR PUBLIC RELEASE
monotron
Details of this schematic are subject to change without notice.
TATSUYA
TAKAHASHI
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