M-Audio Hammer 88

Main Board Schematic-01
Circuit Boards
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6
Debug
Reset
POWER & USB
KEYBOARD
L_KEY
R_KEY
MIDI_OUT
EMC CAPACITORS
MCU
VOLUME&WHEEL
PEDAL
KEY&LED
Mark
49
PA05/ADC5
50
PA06/ADC6
51
PA07/ADC7
52
AVDD
53
CPN0/PC07
54
CPP0/PC06
55
CPN1/PC15
56
CPN1/PC14
57
INT1/PB15
58
XT1_OUT
59
XT1_IN
60
RESET
61
VSS1
62
VDD1
63
PVSS
64
STD/TM0/PB08
32
PB09/TM1
31
PB10/TM2
30
PB11/TM3/PWM4
29
PE05/PWM5
28
PC00/SS00/I2SLRCLK
27
PC01/SPICLK0/I2SBCLK
26
PC02/MISO00/I2SDI
25
PC03/MOSI00/I2SDO
24
PB03/CTS0
23
PB02/RTS0
22
PB01/TX0
21
PB00/RX0
20
D+
19
D-
18
VDD33
17
VBUS
33
PC11/MOSI10
34
PC10/MISO10
35
PC09/SPICLK1
36
PC08/SS10
37
PA15/PWM3/I2SMCLK
38
PA14/PWM2
39
PA13/PWM1
40
PA12/PWM0
41
ICE_DAT
42
ICE_CK
43
AVSS
44
PA00/ADC0
45
PA01/ADC1
46
PA02/ADC2
47
PA03/ADC3
48
PA04/ADC4
16
VSS
15
VDD
14
LDO
13
CTS1/PB07
12
RTS1/PB06
11
TX1/PB05
10
RX1/PB04
9
I2CSDA/PA08
8
I2C0SCL/PA09
7
I2C1SDA/PA10
6
I2C1SCL/PA11
5
X32I
4
X32O
3
CLKO/CPO0/PB12
2
CPO1/PB13
1
INT0/PB14
U2
NUC120RD2BN
C9 20P
C10
20P
R1 1M
XT1
12M
R2
33R
1
GND
2
/RST
3
VCC
U1
IMP809-3.3
R3
10K
C6
104
R4
10K
C2
104
C3
10U/25V
C4
104
C5
104
C7
10U/25V
R16
27R
R17
27R
C8 104
C11
100U/16V
C12 104
C13
100U/16V
3
VIN
1
GND/ADJ
2
VOUT
U3
1117-3.3
FB3
R11
221
R13
221
L5 L1
L14
T2
T3
1
NC
2
A
3
GND
5
VCC
4
Y
U5
74LVC1G07
R5
10K
C18 104
1 2 3 45
6 7 8
AR1
4.7K
1 2 3 45
6 7 8
AR3
4.7K
1 2 3 45
6 7 8
AR4
4.7K
1 2 3 45
6 7 8
AR5
4.7K
1 2 3 45
6 7 8
AR6
4.7K
C21 101 C22 101 C23
101
C24
101
C25
101
C26
101
C27
101
C28
101
C29 101 C30
101
C31
101
C32 101 C33 101 C34 101 C35
101
C36
101
C37
101
C38
101
C39 101 C40 101 C41
101
C42
101
C43 101 C44 101
C49
510P
C52510P
C50510P
C51510P
FB5FB6
C19 101 C20 101 C45
101
C46 101 C47
101
C48
101
1 2 3 4
J8
SUSTAIN
L2
L3
D3
5V/0.15PF
R6
10K
1 2 3 4
J9
SOFT
L4
L8
D7
5V/0.15PF
R8
10K
1 2 3 4
J7
EXPRESSION
L9
L10 L13
R15
100R
D6
4148
D8
4148
C1
104
C53
10U/25V
1
2
3
4 5
6 7
J5
MS-CON-MIDI_JACK
MIDI_OUT
1 3 5 7 9
11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
CN1
1 3 5 7 9
11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
CN2
1
VBUS
2
D-
3
D+
4
GND
5
SH1
6
SH2
J3
USB
C54
104
C55
104
1 2 3 4
J2
1 2 3 4 5 6
J1
1 2 3
J4
VOL
D10
5V/0.15PF
D11
5V/0.15PF
D12
5V/0.15PF
L11
D2
SS24
D13
5V/0.15PF
D14
5V/0.15PF
D15
5V/0.15PF
C56
104
C57
104
1 2 3
DJ1
1
VIN
2
GND
3
VOUT
U4
7805
D4
1N4001
C14 104
C15
470U/16V
C16 104
C17
100U/16V
D5
SS24
FB2
D16
5V/0.15PF
D17
5V/0.15PF
D18
5V/0.15PF
VDD_5V_TEST
C58
100U/16V
C59 104
C60 104
C61 104
C62 104
RESET
C63
104
C64 104
C65
100U/16V
C66 104
D1
5V/0.15PF
C67 104
C68
10U/25V
C69
510P
C70
10U/25V
T6 T7 T8 T9
L7
L12
L16 L17 L18 L19 L20 L21
BL18AG601SN1D
L22 L23 L24 L25 L26 L27 L28 L29
L30 L31
BL18AG601SN1D
L32 L33 L34 L35 L36 L37 L38 L39 L40 L41
BL18AG601SN1D
L42 L43 L44 L45 L46 L47 L48 L49 L50 L51
BL18AG601SN1D
R22
100R
R23
1M
C71
104
C72
104
C74
104
1 2 3 45
6 7 8
AR2
4.7K
C73
DNS
C75
DNS
C76
DNS
C77
104
C78
104
C79
47PF
C80
47PF
R28
1M
C81
DNS
C82
DNS
C83
DNS
R29DNS
3
4
12
L54
TC623-30uH
3
4
12
L53
TC623-30uH
1 2 3 4 5 6 7 8 9
10 11
J20 11P
C84
DNS
C85
DNS
C86
DNS
C87
DNS
C88
DNS
D24
9014
R371k
D9
9014
R91k
D19
9014
R101k
D20
9014
R121k
D21
9014
R141k
D22
9014
R181k
L6
DLW21HN121SQ2
C89
10U/16V
T20 T21 T15
T16 T17 T18 T19 T10T13
T14
C90 104
C91 104
KEY-T01 KEY-T02 KEY-T03
KEY-T00
KEY-T07
ICEDAT ICECLK RESET
VDD_3.3V
XT1-OUT
XT1-IN
VDD_3.3V
RESET
XT1-OUT
XT1-IN
RESET
VDD_3.3V
AVDD_3.3V
PWR_USB_VBUS
USB_D- USB_D+
ICEDAT
ICECLK
VDD_3.3V
VOLUME
PITCHBEND
MODULATION
EXPRESSION
KEYBOARD
KEYBOARD
KEYBOARD
KEY-T04
KEY-T05
KEY-T06
KEY-MK00 KEY-BR00 KEY-MK01 KEY-BR01
KEY-MK02 KEY-BR02
KEY-MK03
KEY-BR03
KEY-MK04
KEY-BR04
KEY-MK05 KEY-BR05
KEY-MK06 KEY-BR06 KEY-MK07 KEY-BR07
KEY-MK08
KEY-BR08
KEY-MK09
KEY-BR09
KEY-MK10
KEY-BR10
MIDI_OUT
VDD_5V
VDD_3.3V
MIDI_OUT
KEYBOARD
KEYBOARD
MODULATION
VOLUME
PITCHBEND
EXPRESSION
AGND
GND
AGND
MODULATION
PITCHBEND
SUSTAIN
SOFT
SOFT
EXPRESSION
KEY-MK00 KEY-BR00 KEY-MK01 KEY-BR01 KEY-MK02 KEY-BR02 KEY-MK03 KEY-BR03 KEY-MK04 KEY-BR04 KEY-MK05 KEY-BR05 KEY-MK06 KEY-BR06 KEY-MK07 KEY-BR07 KEY-MK08 KEY-BR08 KEY-MK09 KEY-BR09 KEY-MK10 KEY-BR10
KEY-T00 KEY-T01 KEY-T02 KEY-T03 KEY-T04 KEY-T05 KEY-T06 KEY-T07
VDD_3.3V
AVDD_3.3V
VOLUME
AVDD_3.3V
USB_D-
USB_D+
SUSTAIN
OCTAVE+ OCTAVE-
VDD_5V
AVDD_3.3V
VDD_3.3V
AVDD_3.3V
AVDD_3.3V
PWR_USB_VBUS
PLLGND
GND
AGND
AGND
GND
GND
AGND
GND
GNDGND
GND
GND
AGND
GND
GND
GND
AGND
AGND
AGND
GND
AGND
GND
GND
GND
PLLGND
GND
AGND
AGND
GND
GND
AGND
GND
OCTAVE+ OCTAVE-
OCT_LED1_R
OCT_LED1_G
SOFT
KEY-T00 KEY-T01 KEY-T02 KEY-T03 KEY-T04 KEY-T05 KEY-T06 KEY-T07
KEY-MK00 KEY-BR00 KEY-MK01 KEY-MK02 KEY-MK03 KEY-MK04 KEY-BR01 KEY-BR02 KEY-BR03 KEY-BR04
KEY-MK05 KEY-MK06 KEY-MK07 KEY-MK08 KEY-MK09 KEY-BR05 KEY-BR06 KEY-BR07 KEY-BR08 KEY-BR09
KEY-T00 KEY-T01 KEY-T02 KEY-T03 KEY-T04 KEY-T05 KEY-T06 KEY-T07
KEY-MK10 KEY-BR10
AVDD_3.3V
KEY-MK00 KEY-MK01 KEY-MK02 KEY-MK03 KEY-MK04 KEY-MK05 KEY-MK06 KEY-MK07 KEY-MK08 KEY-BR00 KEY-BR01 KEY-BR02 KEY-BR03 KEY-BR04 KEY-BR05 KEY-BR06 KEY-BR07 KEY-BR08
KEY-MK09 KEY-MK10 KEY-BR09 KEY-BR10
VDD_3.3V
GND
GND
VDD_5V
OCT_LED1_B
OCT_LED2_R
OCT_LED2_G
OCT_LED2_B
LED2_R LED2_G LED2_B
LED1_R
LED1_G
LED1_B
LED1_R LED1_G
LED1_B
LED2_R LED2_G LED2_B
OCT_LED1_R OCT_LED1_G
OCT_LED1_B
OCT_LED2_R
OCT_LED2_G OCT_LED2_B
GND