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 BY
DRAWN BY
CHECKED BY
CHECKED BY
MODEL
DRAWING No.
DATE
TITLE
KOD-B40455
*
REVISED BY
DATE
REMARK
REVISAL REASON
HP
Output
(Mono)
AudioIn
MIDI IN
USB
(Mono)
MB9BF324M
STM32F030
VR x15
MIDI OUT
Panel PCB (KLM-3622)
Main PCB (KLM-3621)
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 x24
LED x33
OLED
Synth
SIN
RESET
MD0
SOT
MB9BF121M
PWM
AD
GPIO
3
2
8
8
GPIO
8
PWM
5
GPIO
8
3wire-SPI
3
2
SOT, SCK
SIN, SCK
RESET
RESET
GPIO
GPIO
GPIO
5
8
LMK-25FL
BU4227G-TR
RESET
X0/X1
4MHz Crystal
SIN
SOT
UART
INT
2
GPIO
11
3.3VD
analogue synthesizer
PWM
2
control
3.3VD
SOT
SIN
+5V
A/D
GPIO
3.3VD(Logic)
selector
Power
+9V
+3.3V/5V/-5V
3.3VD
+3.3V
3.3ADV
3.3VD
3.3VLED
3.3VD
3.3VD
Master Vol
NJM4580
NJM4556
(Panel)
USB
Mute
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
5
- Internal Clock 48MHz
- Flash 64KB
- SRAM 8KB
- 64pin
- 72MHz (External Crystal)
- Flash 256KB
- SRAM 32KB
- 80pin
selector
Encoder x1
2
GPIO
read
read
- Flash 96KB
- SRAM 16KB
- 80pin
- 72MHz (External)
D+, D-
VCO1
VCF
VCA
+
VCO2
Noise
KA-350
TX, RX
command
Firmware update
4MHz Crystal
X0/X1
Effect
2pole LPF
12dB
sync/ring
LPF
GPIO
Power Control
3
GPIO
Power SW
3.3VD
3.3VD
+5V
-5V
TPS62112
Power
control
3.3VD
TLV70033DCKR
ToggleSW x11
OLED BOARD(KLM-3587)
Sync Interface
MIDI Interface
FX RTN
TPS62112
TLV70033DCKR
2
2
GPIO
INT
Oscillo Trigger
Drive
VCA
VCA
+
