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1
6
+5VUNREG
+VLED_RGB
ANALOG_TOP
A
C79
C78
J17
1
D
10uF
10uF
1
2
2
3
3
4
4
5
5
6
N/C
6
7
7
8
8
9
9
10
10
11
11
PITCH_POT
12
12
MOD_POT
13
13
ANALOG_SELECT0
14
14
ANALOG_SELECT1
TO
15
15
ANALOG_SELECT2
16
N/C
16
17
17
ANALOG0
MAIN
18
18
ANALOG1
19
19
20
N/C
20
PCB
21
21
22
22
23
23
24
24
25
25
26
PAD_RETURN0
26
27
PAD_RETURN1
27
28
PAD_RETURN2
28
29
PAD_RETURN3
29
30
30
GND
GND_LED
B
C
+3V3
U22G
C95
74AHC04
VCC
1
U22A
GND
0.1uF
74AHC04
GND
B
C
J18
1
1
2
DATA0
2
3
DATA1
3
4
DATA2
4
5
DATA3
5
6
DATA4
6
7
DATA5
7
8
DATA6
8
9
DATA7
9
10
10
11
11
12
12
13
13
14
14
15
15
TO
16
16
17
17
18
18
BUTTONS_IN
MAIN
19
19
20
20
21
BACKLIGHT
21
PCB
22
LCD_E
22
23
LCD_RW
23
24
LCD_RS
24
25
LCD_CONTRAST_DC
25
26
26
A
TP1
GND
D
1
2
3
5
4
COMPONENTS ON THIS SHEET SHOULD BE ON RIGHT PCB
+3V3
+VLED
C77
C76
C75
10uF
10uF
10uF
13
12
U22F
PAD_SCAN0
74AHC04
PAD_SCAN1
5
6
U22C
PAD_SCAN2
74AHC04
PAD_SCAN3
3mA trickle current
2
3
4
N/C
N/C
when main supply is off
U22B
74AHC04
R239
10k
R240
10k
R238
10k
Q11
MBT4401
GND
GND
D3
BAV99
DATA[0..7]
EXT0
EXT1
EXT2
LCD CONTRAST
EXT3
EXT4
LOAD_BUTTONS
LOAD_LEDS
SHIFT_CLK
LEDS_OUT
LED_ENABLE
R243
C93
4.75k 1%
0.1uF
2
3
4
3
+VLED_RGB
+3V3
C20
C19
J3
10uF
10uF
14
14
PAD_RETURN0
13
13
PAD_RETURN1
12
12
PAD_RETURN2
11
TO
11
PAD_RETURN3
10
10
9
9
PAD_SCAN1.
8
PAD
8
PAD_SCAN0.
7
7
6
6
5
PCB
5
4
PADS_LEDS_OUT
4
3
LED_ENABLE
3
2
LOAD_LEDS
2
1
SHIFT_LEDS
1
BL109-14RU
GND_LED
GND
+5VUNREG
35mA current source for LCD backlight
35mA current source for LCD backlight
+5VUNREG
Q12
MBT4403
+3V3
Q1
MBT4403
+3V3
R241
680 ohm
R236
470 ohm
R234
R237
10k
10k
C92
Q14
0.01uF
MBT4401
+3V3
D21
C94
SMAJ10A
0.01uF
TO LCD
J19
1
Vss
GND
GND
2
Vdd
3
VO
4
RS
5
R/W
Q13
6
E
MBT4403
DATA0
7
DB0
DATA1
8
DB1
DATA2
9
DB2
DATA3
10
DB3
DATA4
11
DB4
DATA5
12
DB5
DATA6
13
DB6
DATA7
14
DB7
15
Vee
16
NC
GND
DRAWN:
DRAWN_BY_1
RELEASED:
4
5
2
1
+3V3
TP7
TP3
TP2
TP5
TP9
FOR
MOUNTING
HOLES
TP6
R94
R97
R33
R105
0 ohm DNS
0 ohm DNS
0 ohm DNS
0 ohm DNS
GND
GND
R235
C89
15.0 ohm 1%
0.01uF
C90
0.1uF
Q10
MBT4403
+5VUNREG
Do Not Stuff
DNS_680 ohm
R1001
3mA trickle current
J13
L7
2
A
1K @ 100MHz
1
K
C91
1000pF
GND
GND
Copyright (c) 2013 Akai Professional
COMPANY:
AKAI
TITLE:
board
RIGHT PCB - LCD, IO
PART NUMBER:
PART_NUMBER
ASSY NUMBER:
ASSEMBLY_NUMBER
DATED:
#NAME?
FILENAME:
#NAME?
DATED:
Title
SCALE:
SHEET:
Size
Number
A3
Date:
2014/4/25
File:
D:\RD22\..\IO-20130911.SchDoc
5
6
A
D
B
C
B
C
A
D
SIZE:
#NAME?
OF
*
*
Revision
Sheet of
Drawn By:
6
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