Korg prologue-8 User manual

POLYPHONIC ANALOGUE
SYNTHESIZER
prologue-8 / 16
SERVICE MANUAL
TABLE OF CONTENTS
Assembly (Exploded) view: 2
Block Diagram: 4
Schematic Diagram: 6
Harness: 32
Test Mode: 34
Parts List: 37
Issued: Mar. 19, 2018
Ver. 1.0
©2018 KORG INC.

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-B40475 A
REVISED BYDATEREMARK REVISAL REASON
HP
Output L
(Mono)
Output R
MIDI IN
USB
STM32F446
STM32F030
VR x17
MIDI OUT
Panel Right PCB (KLM-3754) Main PCB (KLM-3723)
RESET
SIN, SOT, SCK
GPIO
MISO, MOSI, SCK
serial
GPIO
MD0 boot
command UART
SOT
boot
GPIO
GPIO
command& Firmware write UART
SIN
reset
reset
TactSW x12
LED x12
OLED
Voice
SIN
RESET
MD0
SOT
STM32F401
PWM
AD
GPIO
3
2
8
8
GPIO
5
GPIO
5
GPIO
8
3wire-SPI 3 2SOT, SCKSIN, SCK
RESET RESET GPIO
GPIO
GPIO
BU4227G-TRRESET
X0/X1 4MHz Crystal
SIN
SOT
UART
INT
2
GPIO
11
analogue synthesizer
SOT SIN
+5V
GPIO
12V
selector
Power
+15V
+3.3V/5V/-5V
3.3VD3.3ADV3.3ADV
3.3VD
3.3VLED
3.3VD
3.3VD
NJM4556
USB
SYNC OUT
SYNC IN
MUX
2pole LPF
11 CV
DA 2
5
6
7
A/D
tuning pulse
wave for check
control
GPIO
GPIO
128x64 dot
selector
AD
- Internal Clock 48MHz
- Flash 64KB
- SRAM 8KB
- 64pin
- 180MHz (External Crystal)
- Flash 256KB
- SRAM 128KB
- 144pin
Encoder x1 2GPIO
read
read
- Flash 256KB
- SRAM 64KB
- 64pin
- 72MHz (External)
D+, D-
VCO1
VCF VCA
+
VCO2
Noise
PJT-15V65WBA
TX, RX
command
Firmware update
12.288MHz Crystal
X0/X1
DSP Effects
12dB
sync/ring
LPF
GPIO Power Control
3.3VD
3.3VD +5V
TPS54232
Power
3.3VD TLV70033DCKR
ToggleSW x8
OLED BOARD(KLM-3757)
Sync Interface
MIDI Interface
VCA R
TLV70033DCKR
2
2
GPIO
INT Oscillo Trigger
PWM
3
3.3AVD TLV70033DCKR
12V G5121TP1U
2
VU METER
SD-103R
VU-
VU+
STM32F030
VR x12
Panel Left PCB (KLM-3753)
RESET
MISO, MOSI, SCK
MD0
TactSW x7
LED x23
7SEG LED x2
AD
GPIO
3
2
8
6
GPIO
GPIO
8
GPIO
7
GPIO
GPIO
3.3VLED
selector
3.3VD3.3ADV3.3ADV
3.3VD
3.3VLED
MUX
selector
AD
- Internal Clock 48MHz
- Flash 64KB
- SRAM 8KB
- 64pin
Encoder x1 2GPIO
read
read TX, RX
3.3VD
ToggleSW x8
7Seg BOARD(KLM-3758)
PWM
4
1
WHEEL
VR x2
3.3ADV 2
PWM
3.3VD 3.3AVD
VU-
VU+
GPIO
reset
boot
GPIO Panel Sel
GPIO Panel R ACK
Panel L ACK
GPIO
GPIO
Voice PCB(KLM-3725) x2
AD/DA
TPS54232
12V
Expression
Sustain
Panel Sel
+3.3V/5V
AD/DA
+3.3V/5V 2
Send L/R x2
L.F.Comp
2pole LPF
2Comp CV
VCA CV
GPIO Sel Comp
Return L/R 2
2
2
Send L/R x2
MIX
GPIO Mute DRY
+ +
VCA L
SK-49-S

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-B40475 A
REVISED BYDATEREMARK REVISAL REASON
HP
Output L
(Mono)
Output R
MIDI IN
USB
STM32F446
STM32F030
VR x18
MIDI OUT
Panel Right PCB (KLM-3756) Main PCB (KLM-3723)
RESET
SIN, SOT, SCK
GPIO
MISO, MOSI, SCK
serial
GPIO
MD0 boot
command UART
SOT
boot
GPIO
GPIO
command& Firmware write UART
SIN
reset
reset
TactSW x12
LED x12
OLED
Voice
SIN
RESET
MD0
SOT
STM32F401
PWM
AD
GPIO
3
2
8
8
GPIO
5
GPIO
5
GPIO
8
3wire-SPI 3 2SOT, SCKSIN, SCK
RESET RESET GPIO
GPIO
GPIO
BU4227G-TRRESET
X0/X1 4MHz Crystal
SIN
SOT
UART
INT
2
GPIO
11
analogue synthesizer
SOT SIN
+5V
GPIO
12V
selector
Power
+15V
+3.3V/5V/-5V
3.3VD3.3ADV3.3ADV
3.3VD
3.3VLED
3.3VD
3.3VD
NJM4556
USB
SYNC OUT
SYNC IN
MUX
2pole LPF
11 CV
DA 2
5
6
7
A/D
tuning pulse
wave for check
control
GPIO
GPIO
128x64 dot
selector
AD
- Internal Clock 48MHz
- Flash 64KB
- SRAM 8KB
- 64pin
- 180MHz (External Crystal)
- Flash 256KB
- SRAM 128KB
- 144pin
Encoder x1 2GPIO
read
read
- Flash 256KB
- SRAM 64KB
- 64pin
- 72MHz (External)
D+, D-
VCO1
VCF VCA
+
VCO2
Noise
PJT-15V65WBA
TX, RX
command
Firmware update
12.288MHz Crystal
X0/X1
DSP Effects
12dB
sync/ring
LPF
GPIO Power Control
3.3VD
3.3VD +5V
TPS54232
Power
3.3VD TLV70033DCKR
ToggleSW x9
OLED BOARD(KLM-3757)
Sync Interface
MIDI Interface
VCA R
TLV70033DCKR
2
2
GPIO
INT Oscillo Trigger
PWM
3
3.3AVD TLV70033DCKR
12V G5121TP1U
2
VU METER
SD-103R
VU-
VU+
STM32F030
VR x14
Panel Left PCB (KLM-3755)
RESET
MISO, MOSI, SCK
MD0
TactSW x6
LED x12
7SEG LED x2
AD
GPIO
3
2
8
6
GPIO
2
GPIO
8
GPIO
2
7
GPIO
GPIO
3.3VLED
selector
3.3VD3.3ADV3.3ADV
3.3VD
3.3VLED
MUX
selector
AD
- Internal Clock 48MHz
- Flash 64KB
- SRAM 8KB
- 64pin
Encoder x1 2GPIO
read
read TX, RX
3.3VD
ToggleSW x10
7Seg BOARD(KLM-3758)
PWM
4
1
WHEEL
VR x2
3.3ADV 2
PWM
LED x2
3.3VD
Oct SW BOARD(KLM-3759)
3.3ADV
SW x2
GPIO
PWM
3.3VD 3.3AVD
VU-
VU+
GPIO
reset
boot
GPIO Panel Sel
GPIO Panel R ACK
Panel L ACK
GPIO
GPIO
Voice PCB(KLM-3725) x4
AD/DA
TPS54232
12V
Expression
Sustain
Panel Sel
+3.3V/5V
AD/DA
+3.3V/5V 2
Send L/R x2
L.F.Comp
2pole LPF
2Comp CV
VCA CV
GPIO Sel Comp
Return L/R 2
2
2
Send L/R x2
MIX
GPIO Mute DRY
+ +
VCA L
SK-61-S

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31313 *
REVISED BYDATEREMARK REVISAL REASON
SEND_L1
SEND_R1
RETURN_L+
RETURN_L-
RETURN_R+
RETURN_R-
RX_MIDI
TX_MIDI
SYNC_OUT
SYNC_CN
SYNC_RISE
SYNC_FALL
SUSTAIN
EXPRESSION
MUTE_E
SEND_L2
SEND_R2
CV_VCA
CV_COMP
DAC_BIAS1
DAC_BIAS2
SEL_COMP
PWM_CALIB
METER+
M1
MAIN_CPU.SchDoc
SEND_L1
SEND_R1
RETURN_L+
RETURN_L-
RETURN_R+
RETURN_R-
RX_MIDI
TX_MIDI
SYNC_OUT
SYNC_CN
SYNC_RISE
SYNC_FALL
SUSTAIN
EXPRESSION
MUTE_E
SEND_L2
SEND_R2
CV_VCA
CV_COMP
DAC_BIAS1
DAC_BIAS2
SEL_COMP
PWM_CALIB
METER+
A1
MAIN_AUDIO.SchDoc
P1
POWER.SchDoc

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31314 *
REVISED BYDATEREMARK REVISAL REASON
IN
1
GND
2
EN
3NC 4
OUT 5
TLV70033DCKR
IC20 3.3VD
C102
10u 20% C103
10u 20%
R86
NU
0.1u
C78
0.1u
C79
+15VVIN
C91
100p 5%
0.1u
C80
+12V
12V POWER
8.2K
R82
0.056u
C98
0.027u
C94
10UF 10% 25V 2012
C90
TPS54231DR
BOOT
1
VIN
2
EN
3
SS
4VSENSE 5
COMP 6
GND 7
PH 8
IC21
-12V
10u 20%C82
330p 5%
C99
10K
R72
330
R84
470K
R71
PWR_CTRL1
to POWER UNIT
2
4
3
1
B4PS-VH(LF) (SN)
CN3
PJT-15V65WBA
max 15V/1.9A/28.5W
15V/4.2A
RSX301LA-30-TR
D1
RSX301LA-30-TR
D3
C96
100p 5%
0.1u
C81 +5V
8.2K
R83
6800p
C100
0.027u
C97
TPS54232DR
BOOT
1
VIN
2
EN
3
SS
4VSENSE 5
COMP 6
GND 7
PH 8
IC19
150p 5%
C101
12K
R78
6.8K
R81
100K
R79
RSX301LA-30-TR
D2
7E06NA-220M-GB
L30
2.7K
R85
+15V
+3.3V POWER
+5V POWER(~5.2V)
main digital
panel digital
main MIDI
main HP amp
panel LED
10K
R80
A2001WV-3P
1
2
3
CN4
TO POWER SW
22K
R75
22K
R70
22K
R69
+15V
0.1u
C83
R1
R2
DT3
DTC114EUB
0.033u
C87
1K
R74 1M
R73
22K
R76
Enable Vth=1.25V
3
2
4
1
SQR8065C-150M
L32
PWR_SW
2SC2712-BL
Q1
2SC2712-BL
Q2
R1
R2
DT4
DTC114EUB
L31
+15V
R1
R2
DT5
DTC114EUB
33K
R77
DTA114EUB
R1
R2
DT1
DTA114EUB
R1
R2
DT2
R1
R2
DT7
DTC114EUB
off on
off on
off on
off on
off on
7427512
L34
NU
7427512
L33
NU
IN
1OUT 2
GND
3
FB 4 EN
5
*
IC11
TPS73801DCQR
+5VA for ANALOG(~4.95V)
10u 20%
C119
10u 20%
C124
+5VA
39K
R109
12K 1%
R124
0.1uC129
560K
R147
+5V
0.1u
C130
0.1u
C135

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31315 *
REVISED BYDATEREMARK REVISAL REASON
+5V R174
220
R197
220
R191
220
0.1u
C155
+5V
+5V 3.3VD
DS-05-02(DIN5P W/OUT SW) (D)
5
1
2
3
4DIN2
DS-05-02(DIN5P W/OUT SW) (D)
5
1
2
3
4DIN1
3.3VD
R189
1K
0.1u
C158
R167
1K
0.1u
C161
2SC2712-BL
Q10
2SC2712-BL
Q13
2SC2712-BL
Q14
2SC2712-BL
Q16
R198
10K
R168
100K R170
10K
R185
100K
R184
150K
R171
4.7K
R177
22K
R173
470K
R176
220K
R183
47K
0.1u
C154
R192
1K
R186
0R190
1K
R200
100K
MC2840
WD4
C153
47p 5%
PH7
LJE0371-4P
PH6
LJE0371-4P
D5
D
D4
D
100 5% 1/2W 2010
R95
10K
R102
TX_MIDI
RX_MIDI
R166
100K
R175 NU
R178 NU
R179 NU
R193 NU
R195 NU
R199 NU
+5V
3.3VD
10K
R90
R125
1K
R118
470
C164
1000p
C163
1000p
SYNC_OUT
SYNC_CN
C157
1000p
C156
1000p
SYNC_RISE
SYNC_FALL
R165
10K
R164
10K
3.3VD
R180
NU
R196
NU
20mV-20Vpp
5
4
1
23
PC1
TLP2368(TLMIDI,E(0
2SD2704KT146
Q5
2 4
IC14A
SN74LVC1G125DCKIC14B
SN74LVC1G125DCK
3.3VD
10u 20%
C160
10u 20%
C170
10K
R120
6.8K
R100
MC2840
WD1 R134
0
+5V
R143
10K
R139
100K
2SA1162-GR
Q8
100u 16V
C141
10u 16V
C142
DTC114EUB
DT6
MUTE_E
H:Mute ON
L:Mute Off
R132
1K
2SD2704KT146
Q6
PH4
PJ-603AG-04
PH5
PJ-603AG-04
SUSTAIN
EXPRESSION
C145
1000p
C144
1000p
1K
R142
R145
NU
C152
1000p
C151
1000p
1K
R155
R156
NU
C143
1000p
C150
1000p
2.2K
R138
MC2840
WD2
MC2840
WD3
3.3VD
3.3VD
R108 10K
R123 10K
MUTE_S
6.8K
R92
R128
470
10K
R130
1.5K
R89
6.8K
R87
470p 5%
C106
To AD/DA
DAC_BIAS1
NJM4580M
IC15C
NJM4580M
3
2
1
IC15A
RETURN_L+
RETURN_L-
RETURN_R-
RETURN_R+
3.3KR88
3300p
C104
220p 5%C131
220p 5%C121
+12V
-12V
0.1u
C167
0.1u
C173
differential output full scale:0.96*VA[V]
4.8Vpp
3.3KR93
6.8K
R97
3300p
C111
470p 5%
C112
1.5K
R96
+6.27dB(gain:-2.06)
fc=40kHz
1.5K
R107
6.8K
R101
470p 5%
C120
3.3K
R106
3300p
C116
3.3K
R110
6.8K
R116
3300p
C126
470p 5%
C127
1.5K
R113
0
R111
0
R114
NJM4580M
5
6
7
IC15B
0.1u
C166
0.1u
C172
-12V
NJM4580M
5
6
7
IC17B
NJM4580M
3
2
1
IC17A
NJM4580M
IC17C
SEND_L1
SEND_R1
SEND_L2
SEND_R2
IN_L
IN_R
OUT_L
OUT_R
COMP_L
COMP_R
V1
VCA.SchDoc
CV_COMP
+12V
Drive:5.0V = 10k ohm
Drive:3.3V = 2.2k ohm
C147
1000p
C148
1000p
470
R148
R151
NU
100
R146
220u 6.3V
C107
220u 6.3V
C114
+12V
-12V
0.1u
C169
0.1u
C175
NJM4556AL
IC12C
NJM4556AL
3
2
1
IC12A
NJM4556AL
5
6
7
IC12B
0
R194
0
R201
220p 5%
C105
220p 5%
C113
100 5% 1/2W 2010
R91
100 5% 1/2W 2010
R99
100 5% 1/2W 2010
R104 2SD2704KT146
Q4
2SD2704KT146
Q3
R98
1K
R112
1K
47u 25V
C162
47u 25V
C176
A2001WR-6P
1
2
3
4
5
6
CN5A
DAC_BIAS2
IN
CV
OUT
EG
C2
COMP.SchDoc
10K
R136
10K
R140
6.8K
R141
10K
R135
4.7K
R137
2.7K
R144
+12V
IN
CV
OUT
EG
C1
COMP.SchDoc
IN_1LOUT_L
OUT_R
IN_1R
DAC_BIAS
IN_2L
IN_2R
S1
SEND.SchDoc
6.8K
R105
6.8K
R122
IN_1LOUT_L
OUT_R
IN_1R
DAC_BIAS
IN_2L
IN_2R
S2
SEND.SchDoc
SEL_COMP
NJM4580M
IC13C
NJM4580M
5
6
7
IC13B
NJM4580M
3
2
1
IC13A
+12V
-12V
JACK_CHASSIS_2
NU
1M
R303
-12V
10uNP 16V
C128
10uNP 16V
C136
NJM4556AL
IC18C
0.1u
C168
0.1u
C174
10K
R121
10K
R127
R126
NU
NJM4556AL
3
2
1
IC18A
NJM4556AL
5
6
7
IC18B
10K
R131
10K
R304
R133
NU
H:COMP ON
1K
R305
PWM_CALIB
12K
R306
100K
R307
33K
R308
1u
C115
0.1u
C117
0.47u
C108
FOR VU METER CALIBRATION
METER+
A2001WV-6P
1
2
3
4
5
6
CN7
V1_L
V1_R
V2_L
V2_R
V3_L
V3_R
V4_L
V4_R
DSP THRU:-1.93dB
-8.17dB(gain:-0.39)
+3.34dB(gain:-1.47)
C182
10u 20%
C184
10u 20%
A2001WV-6P
1
2
3
4
5
6
CN8 METER+

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31316 *
REVISED BYDATEREMARK REVISAL REASON
OUT_L
OUT_R
10uNP 16V
C190
10uNP 16V
C188
DAC_BIAS
100
R246
100
R250
3.9K
R244
3.9K
R248
1000p
C187
1000p
C189
0.1u
C191
NJM2746M
3
2
1
IC23A
NJM2746M
5
6
7
IC23B
NJM2746M
IC23C
10K
R245
10K
R249
~=2.5V
IN_1L
IN_1R
IN_2L
IN_2R
10K
R247
10K
R251
+5VA

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31317
REVISED BYDATEREMARK REVISAL REASON
3
2
1
TL084CPT
IC24A
5
6
7
TL084CPT
IC24B
10
9
8
TL084CPT
IC24C
12
13
14
TL084CPT
IC24D
TL084CPT
IC24E
3
2
1
TL084CPT
IC25A
5
6
7
TL084CPT
IC25B
10
9
8
TL084CPT
IC25C
12
13
14
TL084CPT
IC25D
TL084CPT
IC25E
10K
R259
10K
R253 10K
R252
10K
R275
10K
R268 10K
R266
7.5K
R256
7.5K
R257
0.047u
C192
0.047u
C193
0.047u
C195
0.047u
C196
10K
R262
12K
R272
12K
R273
10K
R276
10K
R254
10K
R264
10K
R258
10K
R265
6.8K
R261
NU
R255
6.8K
R286
1SS355 T/R
D9
100K
R278
180K
R277
220K
R282
5.6K
R287
3
2
1
TL084CPT
IC26A
5
6
7
TL084CPT
IC26B
10
9
8
TL084CPT
IC26C
12
13
14
TL084CPT
IC26D
10K
R269
10K
R270
10K
R260
20K
R263
1SS355 T/R
D6
1SS355 T/R
D7 22K
R267
1SS355 T/R
D8
100
R271
1M
R274
0.047u
C197
PMP4201V
Q32
10K
R279
10K
R283
120K
R292
47K
R296
15K 1%
R289
1K 1%
R295
1K 1%
R298
15K 1%
R297
C201
NU
1u
C202
3
2
1
TL084CPT
IC27A
5
6
7
TL084CPT
IC27B
12
13
14
TL084CPT
IC27D
TL084CPT
IC26E
2SC2712-BL
Q35
2SA1162-GR
Q34
3.3K
R280
3.3K
R281
100
R293
100
R294
100
R302
15K
R284
15K
R288
47K
R285
47K
R291
4700p
C198
2SC2712-BL
Q36
560
R301
100K
R299
12K
R300
1.8K
R290
10u 20%
C199
10u 20%
C194
+12V
-12V
+12V
+12V
-12V
+12V +12V
+12V
-12V -12V
-12V
4700p
C200
TL084CPT
IC27E
+12V
-12V
IN
OUT
CV
10
9
8
TL084CPT
IC27C
EG
0.1u
C203
0.1u
C205
0.1u
C207
0.1u
C209
0.1u
C204
0.1u
C206
0.1u
C208
0.1u
C210
PMP4201V
Q33

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31318 *
REVISED BYDATEREMARK REVISAL REASON
NE5532DR
5
6
7
IC22B
10Vpp
10Vpp
10K
R228
10K
R233
220p 5%
C118
10K
R205
10K
R210
NE5532DR
3
2
1
IC22A
IN_L
IN_R
OUT_L
OUT_R
NE5532DR
IC22C
0.1u
C185
0.1u
C186
+12V
-12V
10uNP 16V
C178
10uNP 16V
C183
COMP_L
COMP_R
10K
R219
10K
R238
R215
1K
2SD2704KT146
Q19
470
R209
R222
1K
2SD2704KT146
Q22
470
R218
100K
R217
-12V
SEL_COMP
H:Mute On
L:Mute Off
2SA1162-GR
Q18
+12V
10K
R206
33K
R214
100K
R225
-12V
H:Mute Off
L:Mute On
2SA1162-GR
Q21
+12V
R236
1K
2SD2704KT146
Q26
470
R232
R239
1K
470
R237
2SD2704KT146
Q27
10K
R221
33K
R223
47K
R220
2SC2712-BL
Q20
2SC2712-BL
Q24 2SC2712-BL
Q23
10K
R216
10u 20%
C180
10K
R213
10u 20%
C181
10K
R224
off comp on
off comp on
off comp on
220p 5%
C134
C211
10uNP 16V
C212
10uNP 16V

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31319 *
REVISED BYDATEREMARK REVISAL REASON
3.3VD
3.3VD
1u
C10
C13
0.022u
C7
1000p
R16
10K R18
1K
22p 5%
C14
22p 5%
C11
RSD-04000F202000
4MHzX2
3.3VD
47K
R2
68K
R4
0.1u
C1
0.1u
C3
SYNC_OUT
SYNC_CN
SYNC_RISE
SYNC_FALL
R11
0
USB
About 120ms delay
VOUT 1 VD
2
NC 4
CT
5
BU4227G-TR
IC4
1
23
4
TERMINAL1
1
23
4
TERMINAL2
MAIN CPU
R47
4.7K
R
TO-1608BC-MRE
LED1
To Panel PCB
A2001WV-12P
1
2
3
4
5
6
7
8
9
10
11
12
CN1A
CK_PNL
RX_PNL
TX_PNL
PNL1_ACK
RESET_PNL
BOOT_PNL
To Keyboard(SK-49/61)
KEY_SS3
KEY_SS2
KEY_SS1
KEY_SS0
KEY_SS4
T00
T01
T02
T03
T04
T05
T06
T07
KEY_SS3
KEY_SS2
KEY_SS1
KEY_SS0
KEY_SS4
T00
T01
T02
T03
T04
T05
T06
T07
RX_PNL
TX_PNL
CK_PNL
RX_MIDI
TX_MIDI
3.3VD
For Debug
1
2
3
4
5
6
CN100
NU
SWCLK_
SWDIO_
SWO_
SWCLK_
SWDIO_
SWO_
A2001WV-10P
1
2
3
4
5
6
7
8
9
10
CN-V1
PF12/FMC_A6 50
SAI1_SD_B 2
SAI1_FS_A 3
SAI1_SCK_A 4
SAI1_SD_A 5
PC13
7
PC14
8
PC15
9
PF0/FMC_A0 10
PF1/FMC_A1 11
PF2/FMC_A2 12
PF3/FMC_A3 13
PF4/FMC_A4 14
PF5/FMC_A5 15
PF6/Q1_IO3 18
PF7/Q1_IO2 19
PF9/Q1_IO1 21
PF10
22
PA2/USART2_TX
36
PA1/UART4_RX/Q1_IO3
35 PA0/UART4_TX
34
PC1
27
PC0/FMC_SDNWE 26
PA3/USART2_RX
37
PG1/FMC_A11 57
PE7/FMC_D4 58
PE8/FMC_D5 59
PB14
75
PC2/FMC_SDNE0 28
PD8/FMC_D13 77
PD9/FMC_D14 78
PD10/FMC_D15 79
PF14/FMC_A8 54
PF13/FMC_A7 53
PF11/FMC_SDNRAS 49
PB2-BOOT1
48
PB1
47 PB0
46 PC5
45 PC4
44 PA7
43 PA6
42
PF15/FMC_A9 55
PG0/FMC_A10 56
PE9/FMC_D6 60
PE12/FMC_D9 65
PE11/FMC_D8 64
PE10/FMC_D7 63
PE14/FMC_D11 67
PE15/FMC_D12 68
PB10
69
SAI2_SD_A 70
SAI1_MCLK_A 1
PA4
40
OSC_OUT
24
PA5
41
PF8/Q1_IO0 20
NRST
25
OSC_IN
23
PD11/FMC_A16 80
PC3/FMC_SDCKE0 29
PE13/FMC_D10 66
PB12
73
PB13
74
PB15
76
PD12/FMC_A17 81
PD13/FMC_A18 82
PD14/FMC_D0 85
PD15/FMC_D1 86
PG2/FMC_A12 87
PG3/FMC_A13
88
PG4/FMC_A14/BA0 89
PG5/FMC_A15/BA1 90
PG6/Q1_NCS 91
PG7/FMC_INT 92
PG8/FMC_SDCLK 93
VDDUSB
95
PC6/USART6_TX
96
PC7/USART6_RX
97
PC8/USART6_CK
98
PC9
99
PA8
100
PA9/OTG_FS_VBUS
101
PA10/OTG_FS_ID
102
PA11/OTG_FS_DM
103
PA12/OTG_FS_DP
104
PA13/SWDIO
105
PA14/SWCLK
109
PA15
110
PC10/USART3_TX/Q1_IO1
111
PC11/USART3_RX/Q2_NCS
112
PC12/USART3_CK/UART5_TX
113
PD0/FMC_D2 114
PD1/FMC_D3 115
PD2/UART5_RX
116
PD3/Q_CLK 117
PD4
118
PD5
119
PD6
122
PD7
123
PG9
124
SAI2_SD_B 125
PG11
126
PG12
127
PG13
128
PG14
129
PG15/FMC_SDNCAS 132
PB3/SWO
133
PB4
134
PB5
135
PB6/USART1_TX/Q1_NCS
136
PB7/USART1_RX
137
BOOT0
138
PB8
139
PB9
140
PE0/FMC_NBL0 141
PE1/FMC_NBL1 142
PDR_ON
143
IC1A
STM32F446ZET
VOICE_RESET
VOICE_BOOT
VOICE 1_TX
VOICE 1_RX
VOICE 2_TX
VOICE 2_RX
VOICE 3_TX
VOICE 3_RX
VOICE 4_TX
VOICE 4_RX
470R51
470R52
PNL1_ACK
RESET_PNL
BOOT_PNL
470R53
470R54
MUTE_E
RETURN_L+
SEND_L1
SEND_R1
Voice 1-4
Voice 5-8
Voice 9-12
Voice 13-16
MIDI/BOOT
PANEL
VBAT
6
VSS 16 VDD
17
VSS 51 VDD
39 VSS 38
VDDA
33 VREF+
32 VSSA 31
VDD
30
VDD
52
VCAP_1 71
VDD
62 VSS 61
VDD
72 VSS 83
VDD
84 VSS 94
VCAP_2 106
VSS 107
VDD
108 VSS 120
VDD
121 VSS 130
VDD
131
VDD
144
IC1B
STM32F446ZET
VOICE 1_TX
VOICE 1_RX
VOICE_RESET
VOICE_BOOT
VOICE 2_TX
VOICE 2_RX
VOICE_RESET
VOICE_BOOT
VOICE 3_TX
VOICE 3_RX
VOICE_RESET
VOICE_BOOT
VOICE 4_TX
VOICE 4_RX
VOICE_RESET
VOICE_BOOT
To Voice PCB 1-4
3.3VD
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
BA0
BA1
CLK
WE
CAS
LDQM
CS
UDQM
RAS
CKE
DQ0
C/CLK
DQ2
DQ1
S#/CS
3.3VD
0.1u
C33
DQ3
+5V
L5
L6
L7
L8
L9
L10
L11
L12
L13
L14
L15
L16
L17
470R32
470R33
470R34
470R35
470R36
470R37
470R38
470R39
22R40
22R41
47R48
47R49
47R50
3.3VD
1u
C59
BLM18BB121SN1D
L28
0
R64
1u
C74
R68
NU
4.7u
C75
4.7u
C76
SUSTAIN
EXPRESSION
4.7KR20
56RA2D
56RA2C
56RA2B
56RA2A
56RA3D
56RA3C
56RA3B
56RA3A
56RA7D
56RA7C
56RA7B
56RA7A
56RA1D
56RA1C
56RA1B
56RA1A
56RA6D
56RA6C
56RA6B
56RA6A
56RA4D
56RA4C
56RA4B
56RA4A
SDRAM
3.3VD
FlashROM
AD/DA
56R9
56R7
56R10
56R12
0.1uC57
0.1uC54
0.1uC53
0.1uC52
0.1uC51
0.1uC50
0.1uC49
FG1
5
FG2
6
VBUS 1
D- 2
D+ 3
GND 4
USB1
QT-6301-004
to FT GPIO
1
2
3
4
5
SERIALWRITE1
TX_MIDI
RX_MIDI
3.3VD
bootloader: pattern1
3.3VD
R14
10K
R43 10K
R42 10K
3.3VD
CS4271
XTO 1
XTI 2
MCLK
3
LRCLK
4
SCLK
5
SDO
6
SDI
7
DGND
8
VD
9
VL
10
M0
11
M1
12
I2S/LJ
13
RST
14
VQ1 15
VQ2 16
INA+ 17
INB+ 18
VQ3 19
VA
20
AGND
21
FILT+
22
AMUTE 23
OUT A- 24
OUT A+ 25
OUT B+ 26
OUT B- 27
BMUTE 28
IC8
47K
R23
RETURN_L-
RETURN_R-
RETURN_R+
56R6
4.7
R22
0R17
0R19
L3
DAC_BIAS1
1u
C31
2700p
C9
2700p
C18
47u 16V
C8
0.1u
C29 0.1u
C27
0.1u
C12
24.576MHz
X1
33p 5%
C2
33p 5%
C4
OSC_TR OSC_TR OSC_TR OSC_TR
PWR_CTRL1
+5V
+5VA
0.1u
C32
0.1u
C16
0.1u
C15
BLM18BB121SN1D
L1
BLM18BB121SN1D
L2
0R3
0R8C6
NU
C5
NU
DIR
DIR
CS4271
XTO 1
XTI 2
MCLK
3
LRCLK
4
SCLK
5
SDO
6
SDI
7
DGND
8
VD
9
VL
10
M0
11
M1
12
I2S/LJ
13
RST
14
VQ1 15
VQ2 16
INA+ 17
INB+ 18
VQ3 19
VA
20
AGND
21
FILT+
22
AMUTE 23
OUT A- 24
OUT A+ 25
OUT B+ 26
OUT B- 27
BMUTE 28
IC9
SEND_L2
SEND_R2
2700p
C36
2700p
C43
4.7KR46
0R44
0R45
47u 16V
C35
0.1u
C42
DAC_RST1
LRCLK
SCLK
LRCLK
SCLK
56R13
SD_A1
SD_B1
SD_A2
N25Q032A13ESC40F
S#
1
DQ1
2W#/VPP/DQ2
3
VSS 4
DQ0
5
C
6
HOLD#/DQ3
7
VCC 8
IC6
IS42S16400J-6TL
VDD 1
DQ0
2
VDDQ 3
DQ1
4DQ2
5
GNDQ 6
DQ3
7DQ4
8
VDDQ 9
DQ5
10 DQ6
11
GNDQ 12
DQ7
13
VDD 14
LDQM
15
WE
16 CAS
17 RAS
18
CS
19
BA0
20 BA1
21
A10
22
A0
23 A1
24 A2
25 A3
26
VDD 27
GND 28
A4
29 A5
30 A6
31 A7
32 A8
33 A9
34
A11
35
NC 36
CKE
37 CLK
38
UDQM
39
NC 40
GND 41
DQ8
42
VDDQ 43
DQ9
44 DQ10
45
GNDQ 46
DQ11
47 DQ12
48
VDDQ 49
DQ13
50 DQ14
51
GNDQ 52
DQ15
53
GND 54
IC7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A2001WV-16P
CN2A
DA_VCA
NJM2746M
5
6
7
IC5B
CV_COMP
12K
R65
100K
R66
33K
R67
1u
C72
0.1u
C73
0.47u
C58
TP2
CV_VCA2
DA_COMP
NJM2746M
3
2
1
IC5A
CV_VCA
fc = 10Hz, gain = 1
R61
NU R62 NU R63 NU
C55
NU
C48
NU
C56
NU
TP1
CV_VCA
DA_VCA
DA_COMP
A1 2 Y1
18 A2 3
Y2
17 A3 4
Y3
16 A4 5
Y4
15 A5 6
Y5
14 A6 7
Y6
13 A7 8
Y7
12 A8 9
Y8
11
G1 1
G2 19 GND
10
VCC
20
SN74AHCT541PWR
IC3
A1 3 B1
21 A2 4
B2
20 A3 5
B3
19 A4 6
B4
18 A5 7
B5
17 A6 8
B6
16 A7 9
B7
15 A8 10
B8
14
OE 22
DIR 2
GND
13
VCCB
24 VCCA 1
NC
23
GND 11
GND 12
SN74LVCC3245APWR
IC2
10u 20%
C30
NFM21PC104R1E3D
LC1
L18 NU
+5V
L21 NU
L22 NU
L23 NU
L24 NU
L25 NU
L26 NU
L27 NU
+5V
+5V
15V/500mA +15V
NJM2746M
IC5C
0.1u
C77
+5V
1u
C47
0.1u
C46
DAC_BIAS2
5
6
7
IC10B
NJM4580M
3
2
1
IC10A
NJM4580M
IC10C
NJM4580M
0.1u
C34
~=2.5V
~=2.5V
C17
10u 20%
C28
10u 20%
0.1u
C45C44
10u 20%
47K
R21
PWR_CTRL3
PWR_CTRL3 PWR_CTRL3 PWR_CTRL3 PWR_CTRL3
PNL2_ACK
L19 NU
PNL_SEL
L20 NU
OSC_TR
PNL2_ACK
PNL_SEL
56R59
DAC_RST2
56R60
DAC_RST2
56R5
SEL_COMP
PWR_SW
MCLK
MCLK
internal pull-up
R1
0
15V/500mA +15V 15V/500mA +15V 15V/500mA +15V
3.3VD
PWM_CALIB
56R117
56R15
56R115
A2001WV-10P
1
2
3
4
5
6
7
8
9
10
CN-V2
A2001WV-10P
1
2
3
4
5
6
7
8
9
10
CN-V3
A2001WV-10P
1
2
3
4
5
6
7
8
9
10
CN-V4
NFL18SP157X1A3D
LC2
METER+
+5VA
10K
R94

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31320 *
REVISED BYDATEREMARK REVISAL REASON
PH1
PJ-603AG-04 (D)
PH2
PJ-603AG-04 (D)
PH3
PJ-603AG-04 (D)
A2001WR-6P
1
2
3
4
5
6
CN5B
PL1
C41446
HP_L
HP_R
LINE_L
LINE_R
AGND_1

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31321 *
REVISED BYDATEREMARK REVISAL REASON
RST_NEXT
BOOT
TX_HOST
RX_HOST
M1
CONNECTOR.SchDoc
RST_NEXTRST_THIS
OSC_TR
V1
VOICE_MASTER.SchDoc
RST_NEXTRST_THIS
OSC_TR
V2
VOICE_MASTER.SchDoc
RST_NEXTRST_THIS
OSC_TR
V3
VOICE_MASTER.SchDoc
RST_NEXTRST_THIS
OSC_TR
V4
VOICE_MASTER.SchDoc

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31322 *
REVISED BYDATEREMARK REVISAL REASON
S1
SYNTH.SchDoc
RST_NEXTRST_THIS
OSC_TR
C1
SYNTH_CPU.SchDoc
A1
VCA.SchDoc
RST_NEXT
OSC_TR
RST_THIS
1K
R335
1K
R336
22K
R337

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31323 *
REVISED BYDATEREMARK REVISAL REASON
CV_VCA_L
2SA1618GR
Q27
100 1%
R304
2.2K
R303
1.2K 1%
R312 1.2K 1% R313
-5V
100 1%
R305
2.2K 1%
R308
2.2K 1%
R309
2.2K 1%
R307
2.2K 1%
R311
820p 5%
C180
820p 5%
C181
OUT_L
C178
0.01u
2SA1162-GR
Q26
2SA1162-GR
Q25
5.6K
R302
R300
560 220
R301
VCA_L
3.3VA
VCA_R
CV_VCA_R 2SA1618GR
Q30
100 1%
R320
2.2K
R319
1.2K 1%
R328
1.2K 1%
R329
-5V
100 1%
R321
2.2K 1%
R324
2.2K 1%
R326
2.2K 1%
R323
2.2K 1%
R327
820p 5%
C185
820p 5%
C187
OUT_R
C184
0.01u
2SA1162-GR
Q29
2SA1162-GR
Q28
5.6K
R318
R316
560 220
R317
3.3VA
MULTI_POST
DRIVE_OUT
TL084CPT
3
2
1
IC24A
TL084CPT
5
6
7
IC24B
TL084CPT
10
9
8
IC24C
TL084CPT
IC24E
TL084CPT
12
13
14
IC24D
0.1u
C182
0.1u
C183
+5V
-5V
10KR107
15KR141
10KR38
150p 5%
C186
C179
NU
R310
NU
+5V
R306
NU
+5V

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31324 *
REVISED BYDATEREMARK REVISAL REASON
RST_THIS
RX_HOST
TX_HOST
BOOT_THIS
22p 5%
C26
22p 5%
C27
R15
10K
4.7u
C61
RST_NEXT
10K
R46
DTC114EUB
DT2
C22
1000p PWM_OCT1
PWM_OCT2
PWM_VCA1
PWM_VCA2
PWM_VCA_L
PWM_PW1
PWM_PW2
PWM_FM
PWM_RES
PWM_NOTE1
PWM_NOTE2
+5V
TO-1608BC-MRE
R
LED1
6.8K
R27
R
LED2
NU
6.8K
R29
SW_VCO1A
SW_VCO1B
SW_SYNC
SW_VCO2A
SW_VCO2B
SW_RNGON
DG_AD_VCF
DG_AD_FM
TX_THIS
RX_THIS
RST_NEXT
RESET_THIS
BOOT_THIS
X1
X0
DG_INT_VCO1
DG_INT_VCO2
DG_INT_VCF
DEBUG_LED1
DEBUG_LED2
R14
NU
INT_VCO2
INT_VCO1
WAVE_B1
WAVE_A1
WAVE_B2
WAVE_A2
RNG_ON
SYNC_OFF
R45
10K
R48
10K
0.23-3.0V
R49
10K
INT_VCF
220K
R58
2SC2712-BL
Q1
R64
10K
0-3.3V
DG_SW_SYNC
INT_VCO1
INT_VCO2
INT_VCF
AD_VCF
AD_FM
R28 1K
AD_VCF
AD_FM
12.288MHz
1 2 X1
1.5 +/-0.55V
1.5 +/-0.55V
C20
10u Z
C23
47p 5%
CV_VCA1
CV_VCA2
CV_FM
CV_VCF
CV_RES
CV_VCA_L
3.3v
0v
3 4
IC5B
SN74LV04APWR
TL064CPWR
IC7E
3.3v
0v
3.3v
0v
CV_VCF
TL064CPWR
5
6
7
IC7B
3.3v
0v
CV_VCA1
TL064CPWR
10
9
8
IC7C
CV_VCA2
TL064CPWR
IC6E
IC5G
SN74LV04APWR
CV_VCA_L
TL064CPWR
3
2
1
IC7A
-3.3~3.3
-3.3~3.3
TL064CPWR
10
9
8
IC8C
3.3v
0v
TL064CPWR
12
13
14
IC7D
-3.3~3.3
TL064CPWR
IC8E
3.3v
0v
CV_FM
3.3v
0v CV_RES
TL064CPWR
3
2
1
IC8A
-3.3~3.3
-3.3~3.3
TL064CPWR
12
13
14
IC8D
TL064CPWR
5
6
7
IC8B
C31
10u Z
C34
47p 5%
-5V
+5V
C28
10u Z
C25
47p 5%
C39
10u Z
C42
47p 5%
-5V
+5V
C38
10u Z
C36
47p 5%
C46
10u Z
C49
47p 5%
-5V
+5V
C44
10u Z
C43
47p 5%
IN
1
GND
2
EN
3NC 4
OUT 5
TLV70033DCKR
IC9
C67
10u 20%
C64
10u 20%
+5V
R81
1.1K 1%
R82
43K 1%
R83
120K 1%
R78 91K 1%
0.1u
C71
4700p
C72
220p 5%
C65
-3.3~3.3
R80
100K 1%
R84
100K 1%
C70
1u Z
R79
100K 1%
C69
1u Z
1.1V
1.1V
R91
1.1K 1%
R92
43K 1%
R93
120K 1%
R86 91K 1%
0.1u
C78
4700p
C80
220p 5%
C74
1.1V
R100
1.1K 1%
R101
43K 1%
R102
120K 1%
R95 91K 1%
0.1u
C87
4700p
C88
220p 5%
C84
1.1V
R67
1.1K 1%
0.033u
C57
2200p 5%
C60
1.1V
fc = 3.3kHz
R87
1.1K 1%
R88
43K 1%
R89
120K 1%
R85 91K 1%
0.1u
C75
4700p
C76
220p 5%
C73
1.1V
R96
1.1K 1% 43K 1%
R97
120K 1%
R98
91K 1%
R94
0.1u
C85
4700p
C86
220p 5%
C81
1.1V
-3.3~3.3
120K 1%
R69
91K 1%
R65
100p 5%
C52
43K 1%
R68
R75
NU
C66
NU C68
NU
1.1V
R77
NU
R73
NU C63
NU
R76
NU
TP5
F
TP6
R
TP8
FM
TP10
N
TP7
A_R
TP9
A1
TP11
A2
3.3VA
3.3VA
3.3VA
3.3VA
3.3VA
3.3VA
3.3VA
+5V
R74
NU
1K
R50
OSC_TR1
R33
22K R39
27K
OSC_TR
VOICE CPU PWM FILTERS
0.23-3.0V
-5V
0
R90
0
R99
SWCLK_
SWDIO_
SWO_
For Debug
1
2
3
4
5
6
CN12
NU
SWCLK_
SWDIO_
SWO_
0.1u
C58
+5V
10u 20%
C62
BICK
SDTI
LRCK
MCLK
BLM18BB121SN1D
L10 0
R66
C59
1u Z
R72 NU
100R60
100R61
100R62
100R63
R55 NU
0R71
PWM_VCF
PWM_VCA_R
MULTI_POST
1KR70
+5V
PITCH1/SHAPE1->INT VCO1
Auto Tuning Usage
CUTOFF->INT_VCF
PITCH2/SHAPE2->INT VCO2
RESONANCE->AD_VCF
FM->AD_FM
MULTI_PRE
VCF_SW3
VCF_SW2
VCF_SW1
PWM_VCF
PWM_VCA1
PWM_VCA2
PWM_VCA_L
PWM_FM
PWM_RES
CV_VCA_R
PWM_VCA_R
CV_VCA_R
R104
1.1K 1%
R105
43K 1%
R106
120K 1%
R103 91K 1%
0.1u
C90
4700p
C91
220p 5%
C89
1.1V
TP12
A_L
3.3v
0v
PA15
50
PC13 2
PC14 3
PC15 4
OSC IN 5
NRST
7
ADC1_IN10 8
ADC1_IN11 9
PC2
10
PC3
11
PA0
14
PA1/PWM5_2
15
PA5/PWM2_1
21
PA6/PWM3_1
22
PB15/I2S2_SD 36
PB14
35
PB13/I2S2_CK 34
PB1/PWM3_4
27 PB0/PWM3_3
26
PC6/I2S2_MCK 37
PB5
57
PB6/PWM4_1
58
PB7/PWM4_2
59
PB2 28
PD2
54 PC12
53
SWCLK 49
SWDIO 46
USART6_RX
45
PA11/PWM1_4
44
USART1_RX
43 USART1_TX
42
SWO 55
PB4
56
BOOT0 60
PB8/PWM4_3
61
PC9/I2S_CKIN 40
PC4
24
PA8/MCO_1 41
PA4
20
PC5
25
PA7/PWM3_2
23
PB10/PWM2_3
29 OSC OUT 6
PA2/PWM5_3
16
PA3/PWM5_4
17
PB12/I2S2_WS 33
PA8 39
PC7 38
PB9/PWM4_4
62
PC10
51
PC11
52
IC3A
IC_STM32F401RBT6
VREF- 12 VREF+
13
VSS 18 VDD
19
VDD
48
VSS 47 VDD
64
VBAT
1
VSS 31 VDD
32
VCAP_1 30
VSS 63
IC3B
IC_STM32F401RBT6
+3.3V
TL084CPT
12
13
14
IC10D
DAC
1 2
IC5A
SN74LV04APWR
CV_PW1
CV_PW2
CV_PITCH1
TL064CPWR
3
2
1
IC6A
CV_PITCH1
CV_PITCH2
5 6
IC5C
SN74LV04APWR
CV_PITCH2
TL064CPWR
5
6
7
IC6B
9 8
IC5D
SN74LV04APWR
11 10
IC5E
SN74LV04APWR
3.3v
0v
13 12
IC5F
SN74LV04APWR
3.3v
0v
-3.3~3.3
3.3v
0v
CV_PW1 -0.6~0.6
CV_PW2
TL064CPWR
10
9
8
IC6C
fc = 10kHz
R16
1.1K 1% 27K 1%
R17
150K 1%
R18
56K 1%
R13
0.015u
C21
680p
C24
47p 5%
C18
1.1V
R34
1.1K 1%
R35
43K 1%
R36
120K 1%
R31 91K 1%
0.033u
C40
2200p 5%
C41
100p 5%
C37
1.1V
R51
1.1K 1%
R52
43K 1%
R53
120K 1%
R47 91K 1%
0.033u
C47
2200p 5%
C48
100p 5%
C45
1.1V
R19
1.1K 1%
4700p
C30
R20
270K 1%
fc = 10kHz
R11
1.1K 1%
4700p
C19
R12
270K 1%
TP1
P1
TP3
S2
TP4
S1
R54
10K R59
2.2K
R37
10K R42
2.2K
PWM_OCT1
PWM_PW1
PWM_PW2
PWM_NOTE1
fc = 3.3kHz
fc = 3.3kHz -0.6~0.6
3.3v
0v
3.3v
0v
TL064CPWR
12
13
14
IC6D
R22
1.1K 1% 27K 1%
R23
150K 1%
R24
56K 1%
R21
0.015u
C32
680p
C35
47p 5%
C29
1.1V
TP2
P2
PWM_OCT2
PWM_NOTE2
-3.3~3.3
3.3v
0v
1.1V
3.3VA
RST_DAC
RST_DAC
MCLK
1
BICK
2
SDTI
3
LRCK
4
PDN
5
SMUTE
6
ACKS
7
DIF0
8
P/S
9
AOUTR 10
AOUTL 11
VCOM 12
VSS 13
VDD 14
DZFR 15
ZDFL 16
AK4384ET
IC4
parallel mode
24bit I2S
Auto Setting mode
pin 16/17/44/61/62 high resolution PWM
fc = 1.5kHz
fc = 1.5kHz
fc = 1.5kHz
fc = 1.5kHz
fc = 1.5kHz
fc = 1.5kHz
fc = 1.5kHz
TP100
NU
TP101
NU
TP102
NU
TP103
NU
TP104
NU
TP105
NU
+5Va
-5Va
internal pull-up
VOICE 1 only has to be pull-up(for debug)
CV_SPARE
PWM_SPARE
C82
10u 20%
C107
10u 20%
SW_SPARE
SW_SPARE

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31325 *
REVISED BYDATEREMARK REVISAL REASON
CV_PITCH1
R145
220 1%
R144
3.3K 1%
C110
0.01u
6800p
C93
TL084CPT
5
6
7
IC23B
TL084CPT
10
9
8
IC23C
TL084CPT
12
13
14
IC23D
C117
1u Z
C119
1u Z
-5Va
R143
100K 1%
R142
100K 1%
SAW1
R135
1K
R115
1K
TRI_RAW1
TRI_RAW1
10uNP 16V
C104
TL084CPT
IC23E
TL084CPT
3
2
1
IC22A
TL084CPT
IC22B
R178
100K 1%
CV_PW1
CV_PW1
TL084CPT
10
9
8
IC22C
TL084CPT
12
13
14
IC22D
R175
1K
R190
1K
R173
2.7K
R185
2.7K
R177
100K 1%
R192
100K 1%
220K
R174
R184
100K 1%
TRI1
TL084CPT
IC22E
R166 NU
R160
1K
SQR1
C125
10u Z
C127
10u Z
+5Va
-5Va
C122
10u Z
C123
10u Z
+5Va
-5Va
0.45-1.55
1.1vpp
TL084CPT
IC19E
0.1u
C176
0.1u
C177
+5V
-5V
CV_VCA1
C116
1u Z
C115
1u Z
-5V
TRI_RAW1
SAW1
SQR1
TRI1
R122 NU
R124 NU
WAVE_B1
WAVE_A1
CV_VCA2
2SA1618GR
Q13
R217
10K 1% R218 10K 1%
-5V
R194
1K
TL084CPT
5
6
7
IC10B
18K 1%
R199
18K 1%
R210
18K 1%
R200
18K 1%
R213
150p 5%
C129
150p 5%
C139
C128
10u 20%
C143
1u Z
C142
1u Z
-5V
SAW2
SQR2
TRI2
R180 NU
R182 NU
VCO2
WAVE_B2
WAVE_A2
C159
1u Z
C158
1u Z
-5Va
R240
100K 1%
R239
100K 1%
SAW2
+5Va
R223
100K R224
100K
R204
2.2K
D15
D
D16
D
R205
100K
R206
100K
R203
2.2K
R222
220K
C146
100p 5% C147 100p 5%
TRI_RAW2
TRI_RAW2
10uNP 16V
C148
CV_PW2
R254
NU
R249
1K
SQR2
C154
10u Z
C155
10u Z
-5Va
TL084CPT
3
2
1
IC21A
TL084CPT
5
6
7
IC21B
TL084CPT
10
9
8
IC21C
TL084CPT
12
13
14
IC21D
TL084CPT
IC21E
C168
10u Z
C170
10u Z
-5Va
TL084CPT
IC20E CV_PW2 TRI2
TRI_RAW2
TL084CPT
3
2
1
IC20A
TL084CPT
IC20B
TL084CPT
10
9
8
IC20C
TL084CPT
12
13
14
IC20D
TL084CPT
3
2
1
IC18A
R120
10K
R128
10K
Q9
FM
CV_PITCH2
R243
3.3K 1%
C152
0.01u
6800p
C133
R232
1K
R208
1K
Q22
2SA1162-GR
Q7
R126
100K R127 100K
R111
2.2K
D5
D
D6
D
R113
100K
R114
100K
R110
2.2K
R125
220K
R121
220K
C102
100p 5% C103 100p 5%
2.2K
R167
180
R170
2.2K
R255
180
R258
R130 NU
R191 NU
R202
1K
27K
R196
C124
0.01u
2SA1162-GR
Q11
2SA1162-GR
Q10
3.9K
R176
R168
560
R169
2.2K
VCO2
VCO1
RNG_ON
RTN
R198 NU
TL084CPT
IC18E
10K
R117
R276
100K 1%
R268
1K
R286
1K
R263
2.7K
R285
2.7K
R274
100K 1%
R290
100K 1%
220K
R266
R283
100K 1%
15K
R112
C138
10u Z
C141
10u Z
+5V
-5V
TL084CPT
IC10E
0.1u
C99
0.1u
C100
+5V
-5V
R231
3.3K 1%
R244
240 1%
C131
NU
C105
10u 20%
470K
R215
220p 5%
C144
D17
D
SYNC_PH
SYNC_PH
SYNC_OFF
+5Va
INT_VCO2
INT_VCO1
RAW
OSC_TR1
VCO1
VCO2
VCA1
VCA2
VCF
R221
0
TL084CPT
3
2
1
IC23A
1.1vpp
1.1vpp
1.1vpp
R251
100K
SYNC_OFF
D18
D
R161
100K
D9
D
R136
180
R148
180
0.047u
C108
0.047u
C111
R236
180
R245
180
0.047u
C150
0.047u
C153
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9VEE 7
XCOM 14
YCOM 15
ZCOM 4
VCC 16
GND 8
IC17
CD74HC4053PWR
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9VEE 7
XCOM 14
YCOM 15
ZCOM 4
VCC 16
GND 8
IC15
CD74HC4053PWR
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9VEE 7
XCOM 14
YCOM 15
ZCOM 4
VCC 16
GND 8
IC14
CD74HC4053PWR
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9VEE 7
XCOM 14
YCOM 15
ZCOM 4
VCC 16
GND 8
IC16
CD74HC4053PWR
3.3VA
3.3VA
3.3VA
150p 5%
C94
R118
1K
R132
6.8K
R119
5.6K
R133
6.8K
R123
18K
10K
-5Va
2SA1162-GR
Q16
C101
1u Z
R211
1K
R229
6.8K
R209
5.6K
R230
6.8K
R216
18K
10K -5Va
C145
1u Z
D11
D
D10
D
D13
D
D12 D
D26
D
D25 D
D23
D
D21
D
D4
D
D14
D
0.45-1.55
C136
1u Z
C97
1u Z
C135
1u Z
C98
1u Z
2200p 5%
C163
DTC114EUB
DT4
DTA114EUB
DT3
C161
100p 5%
SYNC_PH
470K
R233
MULTI_PRE
12K
R153
D7
D
D8
D
3
4
52
NJM13700M
IC11A
22K
R157
14
13
1215
NJM13700M
IC11C
8.2K
R151
22K
R147
470
R154
1000p
C120
22KR134
27K
R172
27K
R171
220
R164
220
R163 220
R162
220
R165
CV_VCF
180K
R197
30K
R186
4.3K
R181 HN1B04FU-GR
Q12
1.8K
R183
C126
0.01u
1000p
C121
22KR137
22K
R156
RAW
VCF_OUT
TL084CPT
12
13
14
IC13D
2SA1618GR
Q17
R212
1K
-5V
R207
1K
18K 1%
R214
18K 1%
R228
18K 1%
R219
18K 1%
R234
2SA1162-GR
Q15
3.9K
R195
R187
560
R188
2.2K
CV_RES
27K
R201
C134 NU
C149
NU
FB
INT_VCF
AD_VCF
0
R189
R179
0
3.3VA
VCF_OUT
TL084CPT
5
6
7
IC18B
TL084CPT
10
9
8
IC18C TL084CPT
12
13
14
IC18D
-5V
3.3VA
7
8
NJM13700M
IC11B
10
9
NJM13700M
IC11D
11
6
NJM13700M
IC11E
TL084CPT
IC13E
0.1u
C137
0.1u
C140
+5V
-5V
0.1u
C95
0.1u
C96
+5V
-5V
C132
10u 20%
VCF_SW3
VCF_SW2
VCF_SW1 TL084CPT
5
6
7
IC13B
TL084CPT
3
2
1
IC13A
47KR275
D22
D
D20
D
100K
R289
150p 5%C169 10K
R273
1K
R272
10K
R271
0.047u
C166
4.7K
R279
4700p
C172
D19
D
22K
R281
Drive/HPF
TL084CPT
10
9
8
IC13C
0.01u
C157
0.047u
C164
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9VEE 7
XCOM 14
YCOM 15
ZCOM 4
VCC 16
GND 8
IC12
CD74HC4053PWR
33K
R253
12KR260
12KR267
18KR278
VCF_OUT
C175
1u Z
C174
1u Z
-5V
3.3VA
DRIVE_OUT
1M 1%
R262
D24
D
D28
D
D29
D
D27D
R297
10K 1%
TL084CPT
5
6
7
IC19B
R294
100K 1%
1M 1%
R261
TL084CPT
12
13
14
IC19D
R288
R293
100K 1%
R296
150K 1%
R282
150K 1%
TL084CPT
3
2
1
IC19A
SND1
SND2
RTN
TL084CPT
10
9
8
IC19C
C173
10u 20%
R298 100K 1%
R280
10K 1%
RING
R277
100K 1%
R284
100K 1%
CV_FM
FM
SND1
AD_FM
VCO1
VCO2
VCO1
TL084CPT
10
9
8
IC10C
2SA1618GR
Q8
R139
1K
27K
R131
R158
10K 1% R159
10K 1%
-5V
R140
1K
18K 1%
R146
18K 1%
R152
18K 1%
R149
18K 1%
R155
150p 5%
C106
150p 5%
C112
C92
0.01u
2SA1162-GR
Q3
2SA1162-GR
Q2
3.9K
R116
R108
560
R109
2.2K
FM
3.3VA
0.01u
C162
0.01u
C165 TL084CPT
3
2
1
IC10A
C151
0.01u
2SA1618GR
Q24
R252
1K
47K
R248
R269
10K 1% R270 10K 1%
-5V
R250
1K
100K 1%
R256
100K 1%
R264
100K 1%
R257
100K 1%
R265
C160
NU
C167
NU
2SA1162-GR
Q23
2SA1162-GR
Q21
3.3K
R246
R241
560
R242
2.2K
C109
NU
3.3VA
C171
10u 20%
FB
C118
10u 20%
220p 5%
C113
220p 5%
C114
+5Va
+5Va+5Va
+5Va
+5Va
+5Va
+5Va
+5Va
+5Va
+5Va
SW_SPARE
SQ1
SQ2
TR2
TR1
SA2
SA1
V1
V2
HPF
DRIVE_OUT
D3
D 10K
R150
27KR315
12KR314
C79
NU

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A31326 *
REVISED BYDATEREMARK REVISAL REASON
TO MAIN PCB
OSC_TR
TX_HOST
RX_HOST
L3
NU
L5 NU
L6 NU
L8
NUL7
NU
L2 NU
L4
NU
RST_NEXT
BOOT
R9 10K
OUT1_L
OUT1_R
OUT2_L
OUT2_R
OUT3_L
OUT3_R
OUT4_L
OUT4_R
R10 10K
NE5532DR
5
6
7
IC2B
220p 5%
C14
220p 5%
C15
NE5532DR
3
2
1
IC2A
NE5532DR
IC2C0.1u
C16
0.1u
C17
+5V
-5V
+15V
0.1u
C1
+5V
5V POWER
27K
R5
2700p
C12
0.015u
C11
off=75uA
BOOT
1
VIN
2
EN
3
SS
4VSENSEE 5
TPS54232DR
COMP 6
GND 7
PH 8
IC1
-5V
C13
100p 5%
10K
R2
5.6K
R7
1K
R6
+15V
RRQ045P03TR
F1
DTC114EUB
R1
R2
DT1
10K
R4
330K
R3
3
2
4
1
SQR8042C-N1620-RNK
L1
L9 NU
PWR_CTRL
PWR_CTRL
OUT_L
OUT_R
1
2
3
4
5
6
7
8
9
10
CN2B
HNS-4816
10UF 10% 25V 2012
C2
10UF 10% 25V 2012
C6
10UF 10% 25V 2012
C7
RSX301LA-30-TR
D1
RSX301LA-30-TR
D2
10KRA1A
10KRA1B
10KRA1C
10KRA1D
10KRA2A
10KRA2B
10KRA2C
10KRA2D
R1
NU
R8
NU
A2001WR-3P
1
2
3
CN3B
C33
10uNP 16V
C77
10uNP 16V
100
R30
100
R32
C188
10u Z
C189
10u Z

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE
KOD-A40906 *
REVISED BYDATEREMARK REVISAL REASON
R44
47K
0.1u
C24
0.1u
C36
0.1u
C35
3.3VD
47R27 47R28
47R24 47R25 47R26
3.3VD
For Debug (SWD)
3.3VD
R34
1K
R35
1K
C33
10uZ
0.1u
C34
C39
1000p
3.3VRef
PANEL CPU
100u 6.3V
C40
C44
1000p
for Firmware Update(UART)
for Command(SPI)
R32
100K
R46 NU
R45 NU
R39 NU
R40 NU
R41 NU
R42 NU
R43 NU
10KR30
3.3VD
R38 NU
1
2
3
4
5
6
CN20
NU
1
2
3
4
5
6
7
8
9
10
CN8B
HNS-4818
left_SWDIO
left_SWCLK
left_RESET
TP1
NU
C43
1000p
VDD 1
PC13
2
PC14
3
PC15
4
PF0
5
PF1
6
NRST
7
ADC_IN10 8
ADC_IN11 9
ADC_IN12 10
ADC_IN13 11
VSSA 12
VDDA 13
ADC_IN0 14
ADC_IN1 15
ADC_IN2 16
ADC_IN3 17
PF4 18
PF5 19
ADC_IN4 20
PA5 21
PA6 22
PA7 23
PC4 24
PB12 33
SPI2_SCK
34
PF7
48 PF6
47
SWDIO 46
PA12
45
TIM1_CH4
44
USART1_RX
43 USART1_TX
42
TIM1_CH1
41
TIM3_CH4
40 TIM3_CH3
39 TIM3_CH2
38 TIM3_CH1
37
SPI2_MOSI
36 SPI2_MISO
35
VDD 32
VSS 31
PB11 30
PB10 29
PB2 28
PB1 27
PB0 26
PC5 25
SWCLK 49 PA15/SPI1_NSS
50
PC10
51
PB7
59 PB6
58
SPI1_MOSI
57 SPI1_MISO
56 SPI1_SCK
55
PD2
54 PC12
53 PC11
52
BOOT0 60
PB8
61
PB9
62
VDD 64
VSS 63
STM32F030R8T6
IC3
ENCODER
left_BOOT_PNL
left_RESET_PNL
left_RX_PNL
left_TX_PNL
left_CK_PNL
left_ACK
left_TX_PNL
left_RX_PNL
left_CK_PNL
left_SWDIO
left_SWCLK
left_BOOT_PNLleft_RESET_PNL
l_LED_Dn_PWM0
l_AD_SEL[2..0]
l_AD_SEL0
l_AD_SEL1
l_AD_SEL2
l_AD_SEL[2..0]
l_SW_RD0
l_SW_RD1
l_SW_RD2
l_SW_RD3
l_SW_RD4
l_SW_RD[4..0]
l_SW_RD[4..0]
left_ACK
l_AD[2..0]
l_LED_Dn_PWM1
l_LED_Dn_PWM2
l_LED_Dn_PWM3
l_LED_Dn_PWM4
3.3VD
3.3VRef
R20
4.7K R17 4.7K
3.3VD
R19
4.7K
R18
4.7K
R16
1K
R15
1K
C23
0.01u
C22
0.01u
F11E-0184B
1
3
2
EC1
l_LED_Dn_PWM5
l_LED_Dn_PWM6
l_LED_Dn_PWM7
l_LED_Dn_PWM8
l_LED_Dn_PWM9
l_LED_Dn_PWM10
l_LED_Dn_PWM[10..0]
l_LED_Dn_PWM[10..0]
l_LED_SW_SEL[7..0] l_LED_SW_SEL[7..0]
l_LED_SW_SEL0
l_LED_SW_SEL1
l_LED_SW_SEL2
l_LED_SW_SEL3
l_LED_SW_SEL4
l_LED_SW_SEL5
l_LED_SW_SEL6
l_LED_SW_SEL7
l_AD[2..0]
l_AD0
l_AD1
R37 NU
left_SEL
C42
1000p
left_SEL
ENC2_A
ENC2_B
ENC2_B
ENC2_A
1K R23
1K R22
1K R21
l_AD2
33
R33
3.3VD
R31
10K
left_SEL
DTC114EUA
R1
R2
DT20
100KR293.3VD
l_LED_Dn_PWM0
47KR36
MM1
To Panel Right Board