M-Audio ACCENT MODULE MIK1, Service Manual, Page: 6 / 39

Circuit Boards
Main Board Schematic-01
+3V Power Supply
+1.2V Power Supply
Power Supply For A5 Peripherals
Reset & Crystal
A5 PORT
Power Off Dect
AOD407
12VDC/3A
+12V Power Supply
2 - ALL CAPACITANCE VALUES ARE INDICATED IN "F". ( U = 0.000001F; P = 0.000001UF. ) 1 - ALL RESISTANCE VALUES ARE INDICATED IN "ohm". (K = 1,000ohm; M = 1,000,000ohm. )
REMARK :
C159 220U
C160
220U/10V
C167
10U/10V
C168 0.1U
C169 0.1U
C170 0.1U
C171 0.1U
C172 0.1U
C173 0.1U
C174 0.1U
C175 0.1U
C190 10U/10V
C191
10U/10V
C195 0.1U
C214 0.1U
C19
220U/10V
+
C96
10U/10V
C97 0.1U
C20
0.1U
R85
0 OHM
C105 0.1U
C106 0.1U
C107 0.1U
C108 0.1U
C102 10U/10V
C50 0.1U
C48 0.1U
C103 0.1U
C120 0.1U
R2 0 OHM
3
VIN
1
GND/ADJ
2
VOUT
4
VOUT
U14
LC1117CLTR12
C121 0.1U
C122 0.1U
C123 0.1U
X1
11.2896M
X2
12M
C55
22pF
C56
22pF
C57 22pF C58 22pF
R39 51
R40 51
R41 10K
3
VCC
1
/RESET
2
GND
U2
VDD301SCTA SOT23
R10
100K/NC
C52 10U/16V
C29 1000P/NC
R25 0 OHM
R56
56K
R60
10K
C1
0.1uF
C11
0.1uF
D9
IN5817
3
VIN
1
GND/ADJ
2
VOUT
4
VOUT U7
LC1117CLTR33
C10
100U/10V
C15
0.1U
3
VIN
1
GND/ADJ
2
VOUT
4
VOUT
U31
LC1117CLTR33
C69
100U/10V
C70 0.1U
+
C54
10U/10V
C12
10U/10V
C37 10U/10V
C51
100U/10V
C49
100U/6.3V
C2
0.1U
C34
0.1U
C73
0.1U
C74
0.1U
B1
RST
D5
TEST
D4
XOUT1
E4
XIN1
A10
XIN2
B10
XOUT2
U1-A
A5-289_NEW
E8
VCC12
F6
VCC12
F7
VCC12
F8
VCC12
G6
VCC12
G7
VCC12
G8
VCC12
H6
VCC12
H7
VCC12
C1
AVCC12
D1
AVCC12
E1
AVCC12
U1-S
A5-289_NEW
E7
GND
F9
GND
G9
GND
H8
GND
H9
GND
J6
GND
J7
GND
J8
GND
J9
GND
K6
GND
K7
GND
K8
GND
K9
GND
F10
GND
F11
GND
F12
GND
G10
GND
G11
GND
G12
GND
H10
GND
H11
GND
H12
GND
J10
GND
J11
GND
J12
GND
K10
GND
K11
GND
A4
AGND
B4
AGND
C8
AGND
C2
AGND
B9
AGND
E3
GND
D2
AGND
D9
AGND
E2
AGND
E9
AGND
A9
AGND
U1-T
A5-289_NEW
E14
VCC
K12
VCC
L10
VCC
L11
VCC
L12
VCC
M10
VCC
M11
VCC
M12
VCC
D3
VCC
A7
AVCC
B6
AVCC
B7
AVCC
C6
AVCC
C7
AVCC
D6
AVCC
E6
AVCC
U1-U
A5-289_NEW
M1 M2 M3
S
G
D
Q1
R95 10K
R99 3.3K
R100 6.8K
R101
4.7K
E
B
C
Q5 BC817
C13
0.01U
R107 10K
R108
10K
R109
10K
E
B
C
Q2
BC817
1
2
3
T1
BAT54C
R111 10K
C151 0.1U
L33
INDUCT
C152 0.1U
T2 T3
C14 0.1U
C210 2200U/50V
1
BOOT
2
VIN
3
EN
4
SS
5
VSENSE
6
COMP
7
GND
8
PH
U34
IC-TPS54331
C153 0.1U
C154 470U/50V
C155 0.1U
R102 332K
R103 68.1K
C156 10nF/50V
D8 SS24
L41
6.8UH
C157 330U
C161 0.1U
R104
10.0K(Adjust)
R105
1.9K(Adjust)
C163 120P
R106
29.4K
C164 68P
L37 bead
L23
bead
R87
0 OHM
R4
0 OHM
LED2 LED
R1
1K(Adjust)
L4 bead
L6 bead
R30
0 OHM
L3
bead
R22 10K
S1
R149
0 OHM
M4 M5 M6
+
C280
10U/10V
C281 0.1U
C125 0.1U
1 2 3
CN7
????
+3.3VD
+3.3V_ADC
GND_ADC
+3.3VD
+3.3VD
VCC12
VCC12A
GND12A
VCC12
/RESET
+3.3VD
/RESET
+3.3VD
POWER_OFF_CK
POWER_SOURCE
+5VD
+5VA
+3.3VA
VCC12
+3.3VA
VCC12A
+3.3VD
POWER_DECT
POWER_CTRL
SW
AGND
POWER_SOURCE
+VCC
+5VA
GND_ADC
GND12A
+5VD
POWER_SOURCE SW
POWER_SOURCE
+5VD
GND
+3.3VD
+3.3VD
+3.3VA
6