Akai MPK Road 88

1 1
2 2
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7 7
8 8
D D C C B B A A
Check REV Description
Title:
Size
A3
Number Revision
Date :
File Name:
Sheet of Design By :
DATEDesignApproval
UI PCB
LED_OE
LED_DATA
LED_RC
LED_CLK
EC1
47uF,35V
DGND
R2
330Ω
R3
330Ω
R4
330Ω
R5
330Ω
LED+4V
R9 100Ω
R11 100Ω
R12 100Ω

 


















 
 



GND
G
N
G
G
D
VIN
1
ON/OFF
2
OUT
3
VADJ
4
5
OUT(TAB)
6
U1 NJM2387
LED+4V
DGND
100uF, 10V EC3
+ EC2
100uF/16V
R1 2.2K
+5V
LED+4V
0.1uF C2
0.1uF
C1
R8 1KΩ
2
1 3
VR2 5KB
1 2 3
J8
A+3.3V_M
M_AGND
2
1 3
VR1 5KB
1 2 3
J7
A+3.3V_P
P_AGND
PITCH
SW1
KBD_ROW8 KBD_ROW9
KBD_ROW10 KBD_ROW11
KBD_COL10
D1 4148
SW2
D2 4148
SW3
D3 4148
SW4
D4 4148
G = 2 Fc=117.9kHz
S1
S2
S3
CHGND
HP_AGND
C3
100pF(DNS)
C4
100pF(DNS)
PHONE OUT
HP_AGND
R10 100Ω
Q1 Q2 Q3 Q4
DGND DGND DGND DGND
MOD
1 2 3
J2
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
J4
FCN1T1003001(ᶳ)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
J5
FCN1T1003001(ᶳ)
SW5
D5 4148
SW6
D6 4148
R6
330Ω
R7
330Ω
R14 100Ω
Q5 Q6
DGND DGND
R13 100Ω
PRESET_UP_LED
PRESET_DW_LED
LED
ᾖ㓡䁢
LDKPT-1608SECK
TRANSPOSE
SPLIT
SETUP A
SETUP B
PRESET UP
PRESET DOWN
KBD_ROW12 KBD_ROW13
TRANSPOSE
SPLIT SETUP A SETUP B PRESET UP
PRESET DOWN
PC17A015C PC17A015D
PC17A015E
PC17A015E
PC17A015B
㕁ẞ㓡䁢
JK6K6J61A-AA-6 (AW50)
炻暞ẞ⹓ᶨ㧋䘬
HP OUTPUT1_R.
HP OUTPUT1_L.
R18 1MΩ
R21
3.32KΩ
R25
3.32KΩ
R17 11.8KΩ
R19 47.5KΩ
A+3.3V
AGND
AGND
R23 1MΩ
R26
3.32KΩ
R28
3.32KΩ
R24 11.8KΩ
R27 47.5KΩ
R22 475Ω
A+3.3V
AGND
AGND
A+3.3V
AGND
C8 0.1uF
C6 0.1uF
C5 0.1uF
C7 0.1uF
C10 0.1uF
PITCH
MOD
LMV324M
+
3
-
2
1
U2A
LMV324M
+
5
-
6
7
U2B
R16 475Ω
R15 15.8KΩ
R20 15.8KΩ
PITCH MOD
R36 11.8KΩ
R37 47.5KΩ
A+3.3V
AGND
AGND
C14 0.1uF
1 2 3 4
J6
C13 0.01uF
C12 0.1uF
R33 1.27K
A+3.3V
R38
4.75KΩ
R39
1.33KΩ
Aftertouch
AGND
R47 0Ω
R42 0Ω
R35 475Ω
Aftertouch_IN
LMV324M
+
5
-
6
7
U4B
LMV324M
+
3
-
2
1
U4A
R34 15.8KΩ
嬲㚜䁢
1K27
婧㔜
AF
デ⹎
Aftertouch
A0
11
Y3
12
Y0
13
Y1
14
A1
10
A2
9
Y2
15
VCC
16
Z
3
Y7
4
Y5
5
E
6
Y6
2
Y4
1
VEE
7
VSS
8
U3 74HC4051
ADC_SEL1 ADC_SEL2 ADC_SEL3
C11 0.01uF(DNS)
A+3.3V
AGND
AGND
C15 0.1uF
C9 0.1uF
A+3.3V
AGND
R48 0Ω
R43 0Ω
AGND
R49 0Ω
R44 0Ω
R29 1MΩ
R30 100Ω
R31 100Ω
R32 100Ω
COMM_ADC
EXPRESSION 1
EXPRESSION 2
LMV324M
411
U4E
LMV324M
+
10
-
9
8
U4C
LMV324M
+
12
-
13
14
U4D
AGND
EXPRESSION 1 EXPRESSION 2
J3
ὅ㒂䳬墅⿏炻婳㓦伖ᶳⰌ
LMV324M
+
10
-
9
8
U2C
LMV324M
+
12
-
13
14
U2D
LMV324M
411
U2E
AGND
R45 0Ω
R40 0Ω
AGND
R46 0Ω
R41 0Ω
C16 0.1uF
A+3.3V
AGND
1 2 3 4 5 6
J3
T
TS
R
RS
S
SS
S1
J1 JACK 6.4mm
LD1
LD2
LD3
LD4
LD5
LD6