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Korg Volca Bass Service Manual page 6

Analogue bass machine
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1
2
A
product ID
PI6
PI7
RHYTHM
1
0
BASS
0
X
POLY
1
1
76
3.3VD
RVDD3
R38
77
10K
XT1
78
R37
XT2
10K
79
TB4IN0/PI6
R36
80
10K
NMI
R35
81
10K
MODE
RESET
R33
82
470
RESET
RESET
R26
C34
83
10K
3.3VD
TB4IN1/PI7
R25
84
10K
TB3IN0/PH6
SYNC OUT
85
4700p
SYNC OUT
TB3IN1/PH7
B
R31
86
SYNC RISE
1K
SYNC RISE
INT2/PJ2
SYNC FALL
R28
87
1K
SYNC FALL
INT3/PJ3
PWM VCF
88
PWM VCF
TB6OUT/PJ4
PEAK SW
89
PEAK SW
RXIN0/PE3
90
TEST4
VR9
91
VR9
AIN0/PC0
VR8
92
VR8
AIN1/PC1
VR7
93
VR7
AIN2/PC2
94
VR6
VR6
AIN3/PC3
VR5
95
VR5
TB5IN0/AIN4/PD0
VR4
96
VR4
TB5IN1/AIN5/PD1
VR3
97
VR3
TB6IN0/AIN6/PD2
VR2
98
VR2
TB6IN1/AIN7/PD3
VR1
99
VR1
AIN8/PD4
VR0
100
VR0
AIN9/PD5
3.3VD
C
3.3VD
3.3VD
R14
10
C17
0.047u
All ceramic capacitors are K rank unless specified otherwise
CE: 0.1uF Z
D: 1SS355ST(A)
L: BLM18BD102SN1D (S)
WD: MC2840-T112-1 (S)
NPN: 2SC1623-T1B-A<L6/L7>(S)
PNP: 2SA812-T1B-A M5-7 M6 RANK(S)
D
FET: 2SK433-T112-1E (S)
DTC: DTC114EUA T106(S)
DTA: DTA114EUA T106(S)
MARK
REVISAL REASON
DATE REVISED APPROVED
1
2
3
SP EN
HP CN
RSD-10000F202000
HC-49US 10.000MHZ SMD
X1
C28
22p J
R27
C27
22p J
22
3.3VD
3.3VD
IC4
TMPM330FWFG(C)
3.3VD
3.3VD
R15
100K
BAT LO
SYNC CN
C24
C22
0.01u
1000p
PWM GATE
PWR SW
PWR CTRL
TxD MIDI
RxD MIDI
+5V
3.3VD
+5V
R6
digital
IC1
22
1
5
IN
OUT
2
C4
GND
C1
C3
3
4
EN
NC
1u Z
1u Z
10u M
R2
TLV70033DCKR
3
4
5
MICROPROCESSOR
TUNE2
PWM oct1
PWM note1
3.3VD
CN1
R30
R29
6
5
10K
10K
3.3VD
SWDIO
4
SWCLK
3
SWV
2
1
NU
RESET
hand wire
A2001WV-6P
3.3VD
R200
R18
10K
4.7K
50
HP disable
PK0/CEC
HP disable
49
TUNE1
PJ1/INT1
TUNE1
48
PWM oct3
PI3/TB3OUT
PWM oct3
47
WAVE SEL A
PB7
WAVE SEL A
46
VCO3
PF6/SCK1
VCO3
45
VCO2
PF5/SI1/SCL1
VCO2
44
VCO1
PF4/SO1/SDA1
VCO1
43
WAVE SEL B
PB6
WAVE SEL B
42
PWM note3
PI2/TB2OUT
PWM note3
41
WAVE SEL C
PB5
WAVE SEL C
40
PWM oct2
PI1/TB1OUT
PWM oct2
39
TUNE3
PJ6/INT6
TUNE3
38
PWM note2
PI0/TB0OUT
PWM note2
37
SS3
PB4
SS3
36
LD5
PH3/TB1IN1
LD5
35
SS2
PF2/SCLK2/CTS2
SS2
34
SS1
PF1/RXD2
SS1
33
SS0
PF0/TXD2
SS0
32
LD4
PH2/TB1IN0
LD4
31
PWM LED2
PH1/TB0IN1
PWM LED2
30
PH0/TB0IN0/BOOT
GND_LED
29
PB3
3.3VLED
28
PSoC_RST
PG2/SCK0
27
R20
PSoC_SCL
0
PG1/SI0/SCL0
26
R19
PSoC_SDA
0
PG0/SO0/SDA0
3.3VD
R23
R22
NU
4.7K
3.3VD
TP16
1
BOOT
brown
RXD
2
red
TXD
3
orange
4
3.3VD
yellow
5
green
OCTAVE
3.3VD
C2
CE
R24
3.3VD
10K
10K B
VR1B
3.3VLED
frame grounds
LED
IC2
1
5
IN
OUT
C6
C8
2
GND
C9
3
4
10u M
1u Z
EN
NC
1u Z
TLV70033DCKR
0
GND_LED
GND_LED
4
5
6
3.3VLED
R8
C7
22
10u M
SS0
GND_LED
SS1
DT11
SS2
SS3
DT10
DT13
DT12
PWM LED0
PWM LED1
PWM LED2
CN2
7
6
5
LED MATRIX
4
3
2
1
DT1
DT3
A2001WR-7P
LD0
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LFO RATE
TEMPO
ATTACK
DECAY /
CUTOFF
RELEASE
INT
3.3VD
3.3VD
3.3VD
3.3VD
3.3VD
C43
C29
C42
C47
C75
CE
CE
CE
CE
CE
C5
C45
C30
C31
C46
CE
CE
CE
CE
CE
10K B
10K B
10K B
10K B
10K B
VR6B
VR3B
VR5B
VR7B
VR8B
3.3VD
3.3VD
R32
DRAWN DESIGNED CHECKED
10K
2
1
VDD
OUT
RESET
4
TSE
NC
5
CT
Kobayashi
3
C33
GND
1000p
IC5
BU4227G-TR
6
7
8
red:
SML-E12UWT86
red:
KPTR-3216SURCK
TEMPO
(spare)
BAT3
R10
100
LED2
LED10
LED4
R11
ATTACK
VCO1
BAT2
100
LED3
LED11
LED5
R12
DECAY
VCO2
BAT1
100
LED7
LED12
LED6
R13
EG INT
VCO3
BAT0
100
LED9
LED13
LED8
DT15
DT16
DT14
GND_LED
LED1
TOF-3461BH-B12
R4
100
12
D1
A
R3
100
9
F
B
D2
G
R1
100
8
E
C
D3
R5
100
D
DP
6
D4
A B C D E F G DP
DT7
DT5
DT4
DT2
DT8
DT6
GND_LED
LFO INT.
PITCH1
PITCH2
PITCH3
3.3VD
3.3VD
3.3VD
3.3VD
C71
C86
C101
C119
CE
CE
CE
CE
C44
C72
C85
C100
C118
CE
CE
CE
CE
CE
10K B
10K B
10K B
10K B
VR9B
VR10B
VR11B
VR12B
APPROVED
MODEL:
X-12210
TITLE:
SCHEMATIC 2/3
Tatsuya
Tatsuya Kenichi
Takahashi
Takahashi
Nakamura
KLM-3201 DIGITAL
DRAWING NO:
DATE:
KOD-A30998
2013/03/20
7
8
A
B
C
D

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