M-Audio Keystation 49

1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
7
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Title
Number Revision Size
A3
Date: 2014-4-4 Sheet of
File: C:\Documents and Settings\..\MK33.01.06.SchDocDrawn By:
06
1
1
2
2
3
3
SW1A
SK-22F12-G7
4
4
5
5
6
6
SW1B
SK-22F12-G7
C8051F320
P00
2
P01
1
P02
32
P03
31
P04
30
P05
29
P06
28
P07
27
P10
26
P1
25
P1
24
P1
23
P1
22
P1
21
P1
20
P1
19
P20
18
P2
17
P2
16
P2
15
P2
14
P2
13
P2
12
P2
11
P30/C2D
10
D+
4
D-
5
VBUS
8
REGIN
7
RST/C2CK
9
VDD
6
GND
3
U2
P3.0/C2D/LED0
USB_D+
USB_D-
USB_D+
USB_D-
P3.0/C2D/LED0
100nF
C6
4.7uF
C3
GND
100nF
C8
4.7uF
C7
+5V
GND
+3.3V
RESET
GND
+VBUS
1
D-
2
D+
3
GND
4
5 6
J1
100nF
C4
CHGND
USB_D-
USB_D+
USB_D-
USB_D+
100nF
C2
SUSTAIN
PH2.0-3Z
1
2
3
J7
+3.3V
GND
MAIN_VOL
100nF
C9
PITCHBEND
PITCHBEND
MODULATION
MODULATION
PEDAL_VOL
PEDAL_VOL
MAIN_VOL
MAIN_VOL
742792651
L2
SFI0603
R10
100nF
C5
GND
22R R6
22R R7
742792651
L1
VBUS
VBUS
VBUS
VBUS
1/4" STEREO JACK
S
1
R
3
T
2
J4
+3.3V
GND
47R
R1
SS12
D1
L3
L4
SUSTAIN
574_CLK
574_CLK
PH2.0-6Z
J8
+3.3V
GND
MODULATION
PITCHBEND
100nF
C10
100nF
C11
LED2
W[0..15]
W0
W1
W2
W3
W4
W5
W6
W7
FR0
FR
FR
FR
FR
FR
FR
FR
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
J2
SN74HC574NSR
OE
1
CLK
11
D0
2
D1
3
D2
4
D3
5
D4
6
D5
7
D6
8
D7
9
Q0
19
Q1
18
Q2
17
Q3
16
Q4
15
Q5
14
Q6
13
Q7
12
GND
10
VCC5
20
U1
100nF
C1
+3.3V
GND
574_CLK
574_CLK
GND
W0
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12
W13
LED3
LED4
FR0
FR1
FR2
FR3
FR4
FR5
FR6
FR7
W13
W12
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7
WR13
WR12
W8
W9
W10
W11
FR0
FR1
FR2
FR3
FR4
FR5
FR6
FR7
GND
W[0..15]
FR[0..7]
W[0..15]
PH2.0-14Z
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J5
1
3
5
7
9
2
4
6
8
10
J10
+3.3V
GND
RESET
RESET
+5V
GND
1KR21
P3.0/C2D/LED0
DEBUG
P3.0/C2D/LED0
LED2
LED3
LED4
WR13
RD2
RD3
GND
RD4
RD5
RD6
RD7
10K
R11
1K
R20
+5V
22uF
C12
10K
R3
GND
47pFC25
22pFC24
22pFC23
47pF
C13
47pFC14
47pFC15
47pFC16
22pF
C17
22pFC18
22pFC19
22pFC20
22pFC21
22pFC22
+3.3V
100nFC26
22pFC28 22pFC27
47pFC29 47pFC30
22pFC31 22pFC32 22pFC33 22pFC34 22pFC35
22pFC36
GND
47pFC37
47pFC38 47pFC39 47pFC40 47pFC41
47pFC42
47pFC43 47pFC44
47pFC45 47pFC46 47pFC47 47pFC48
GND
22R
1
3
5
7
2
4
6
8
R17
22R
MK33.01
1
3
5
7
2
4
6
8
R18
W7
22R
1
3
5
7
2
4
6
8
R19
W0
W1
W2
W3
W4
W5
W6
22R
1
3
5
7
2
4
6
8
R15
22R
1
3
5
7
2
4
6
8
R16
10K
1
3
5
7
2
4
6
8
R12
10K
1
3
5
7
2
4
6
8
R13
WR0
WR1
WR2
WR3
WR4
WR5
WR6
WR7
WR8
WR9
WR10
WR11
LED1
WR12
RESET
100nF
C49
GND
100nFC50
P3.0/C2D/LED0
GND
PTS0603 D2 PTS0603 D3
PTS0603
D8
74279265 L5
74279265
L7
74279265 L6LED1
100nF
C51
22RR22
22RR23
100nF
C52
CHGND GND
SUSTAIN
220R
R24
SUSTAIN
BAT54S
1 2
3
D9
GND
+3.3V