12.5. Main (IO Expansion) Circuit (2/2)
15 16 17 18 19 20 21 22 23 24 25 26 27 28
15 16 17 18 19 20 21 22 23 24 25 26 27 28
A
C
D
B
E
G
H
F
A
MAIN (IO EXPANSION) CIRCUIT
SCHEMATIC DIAGRAM - 4
SA-MAX3500PU
2/21/2
F
TO
USB CIRCUIT (CN6901)
IN SCHEMATIC
DIAGRAM - 17
AA
AB
AC
AD
AE
: +B SIGNAL LINE
FA: MAIN (FAN LED) & MAIN (BLUETOOTH CONNECT): SCHEMATIC DIAGRAM - 1
FE: MAIN (FE): SCHEMATIC DIAGRAM - 2
MI: MAIN (MICON): SCHEMATIC DIAGRAM - 5 ~ 7
VR: MAIN (VREG FAN): SCHEMATIC DIAGRAM - 8 ~ 9
DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 10 ~ 12
: USB SIGNAL LINE
C1812
1000P
C1813 1000P
3
2
6
7
4
5
1
9
8
P1811
R1838 0
0R1839
USB_A_SW5R1V
R1836
USB_B_SW5R1V
8
65
7
4
21
3
RX1206
D1H81014A042
8
65
7
4
2 1
3
RX1207
D1H81014A042
C1206
10
LB1201
J0JYC0000656
USBLED_REC1
USBLED_PLAY1
DSP_RESET
DSP_MUTE
USB_A_PCONT
PCONT_BUFFER
USB_B_PCONT
15V_REG_BP
AM_BP
PCONT
TUN_RST
SPX_CLR
POWER_UP
8
6 5
7
4
21
3
RX1202
D1H81014A042
USB1_D+
USB1_D-
USB0_D-
R1837
0
0
USB0_D+
PW_XSW3R3V
VR
VR
VR
VR
MI
MI
MI
MI
MI
MI
MI
MI
MI
BT_LDO_ON
BT_PCONT
FAN_CTL1
FAN_CTL2
8
65
7
4
21
3
RX1204
D1H81014A042
8
6 5
7
4
21
3
RX1203
D1H81014A042
SP_DAT
SP_CLK
4.7
C1204
100P
C1203
SP_CLR
8
65
7
4
21
3
RX1205
D1H81014A042
C1202
100P
C1201
100P
SP_STB
26
25
27
28
17
18
20
22
24
23
21
19
8
9
7
5
6
16
15
10
13
14
12
11
3
1
2
30
32
31
4
29
C0JBAZ002990
IO EXPANDER
IC1202
QR1803
B1GBCFGN0016
100K
R1833
J0JBC0000010
LB1827
PW_SW5R4V_ILUM
J0JBC0000010
LB1828
Q1806
DSA200100L
J0JYC0000452
LB1829
LB1826
J0JYC0000452
R1835
100K
DSA200100L
Q1805
B1GBCFGN0016
SWITCH
LED DRIVE
SWITCH
LED DRIVE
QR1804
D+B
D-B
D+A
D-A
P5
P4
P17
VSS
P15
P7
P16
P6
P1
/CLR
P20
P21
P3
P2
P18
P19
DGND
P11
VDD
P12
P8
P14
P10
P9
P13
USBLED_A
USBLED_B
USB_B_SW5R1V
USB_A_SW5R1V
CLK
DATA
P23
P24
P22
/STB
NC
NC
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