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12.4. Main (SOC IO Expander) Circuit (2/2)
15
16
17
SCHEMATIC DIAGRAM - 4
A
MAIN (SOC IO EXPANDER) CIRCUIT
P1
P1003
G2
R1120
100
SBO
6
D3R3V
5
FOR FIRMWARE
GND
4
DOWNLOAD
R1121
100
SBI
3
R1122
100
XRESET
2
XDIAG
1
G1
IC1004
RFKWEKX660LM
EEPROM
1
A0
VCC
8
2
A1
WP
7
3
A2
SCL
6
5
4
GND
SDA
C1043
0.022
R2158...AKX880
0
R2112...AKX660
0
R2121...PN
0
R2123...PS
0
B1GBCFJJ0040
CD: MAIN (CD MOTOR DRIVER): SCHEMATIC DIAGRAM - 1
US: MAIN (USB EMMC): SCHEMATIC DIAGRAM - 2
SO: MAIN (SOC IO EXPANDER): SCHEMATIC DIAGRAM - 3 ~ 4
DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 5 ~ 6
CN: MAIN (CONNECTOR): SCHEMATIC DIAGRAM - 7
DS: MAIN (DSP): SCHEMATIC DIAGRAM - 8
VR: MAIN (VOLTAGE REGULATOR): SCHEMATIC DIAGRAM - 9 ~ 10
BT: MAIN (TUNER) / MAIN (BLUETOOTH): SCHEMATIC - 11
TO MAIN (SOC IO EXPANDER)
CIRCUIT (1/2)
NOTE: " * " REF IS FOR INDICATION ONLY
15
16
17
18
19
20
: +B SIGNAL LINE
: CD SIGNAL LINE
UART1_TXD
UART1_RXD
NRST
R2417
10K
R2418
10K
US
VR
PW_CD_3R3V
FAN_CTL2
FAN_CTL1
DSP_RESET
POWER_MODE
PW_STDBY_3R3V
USB_A_LED
USB_OE
EEP_SCL
USB_B_PCONT
EEP_SDA
USB_A_PCONT
R1042
0
R1228
18K
FAN_CTL1
R1226
7.5K
VCCI
R1229
ADDR
4.7K
QR1201
FAN_CTL2
RESET
SWITCH
FAN_C2
C1207
FAN_C1
4.7
DSP_RST
POWER_M
FAN_OUT
VR
RX2008
D1H81014A042
LED_P0
7
8
5
6
LED_P2
3
4
LED_P3
1
2
CN
LED_P0
LED_P2
CN
CN
LED_P3
BT_LDO_ON
BT
ANAL_SEL
TUN_RST
18
19
20
21
22
23
: TUNER/AUX/MIC SIGNAL LINE
: USB SIGNAL LINE
C0ZBZ0001747
RX2004
D1H8R0040016
R2003
8
7
0
6
5
1
4
3
2
RX2003
D1H81014A042
2
1
3
8
7
4
6
5
5
4
3
6
2
1
7
C2023
R2300
8
7
8
0
0.1
6
5
4
3
2
1
RX2002
D1H81014A042
FOR AKX880
LB1201
J0JBC0000010
1
VCCI
VDD
32
2
ADDR
SP_SDA
31
SP_SCL
3
30
RESET
C1206
10
SP_INT
4
29
FAN_C2
USB_A
5
28
FAN_C1
USB_B
6
27
DSP_RST
USB_OE
7
26
POWER_M
FOR AKX660
USBA_LED
25
8
VSS
P3
9
24
BT_LDO_ON
AM_BP
10
23
ANAL SEL
FOR AKX880
11
TUN_RST
NC
22
RX2007
D1H81014A042
1
12
NC
/CLR
21
3
NC
/STB
20
5
13
C1203
C1204
7
100P
4.7
14
NC
NC
19
C1201
C1202
100P
100P
15
NC
CLK
18
DATA
16
NC
17
FOR AKX880
IC1006
C0JBAZ002990
IO EXPANDER
R1241
100
21
22
23
46
24
25
26
FOR AKX660
FOR AKX660
IC2006
2
4
6
8
1 3
5 7
VCCI
VCCP
16
8
7
DATA
ADDR
SP_SDA
15
6
5
CLK
RESET SP_SCL
14
4
3
/STB
FAN_C2
SP_INT
13
2
1
RX2005
FAN_C1
USB_A
12
D1H8R0040016
DSP_RST_
USB_B
11
10
POWER_M
USB_OE
GND
USBA_LED
9
C2022
0.1
PW_STDBY_3R3V
IC1003
RFKWFKX660LM...AKX660
SP_SDA
RFKWFKX880LM...AKX880
16M FLASH MEMORY
SP_SCL
SP_INT
5
4
DI(DQ0)
VSS
6
CLK
WP#(DQ2)
3
USB_A
HOLD#(DQ3)
7
2
DO(DQ1)
8
1
VCC
CS#
USB_B
C1020
C1019
10
0.1
USB_OE
USBA_LED
R1007
0
R1008
0
R1009
0
AM_BP
/CLR
2
/STB
4
CLK
6
DATA
8
SYS5V_GND
SA-AKX660PN/PS,SA-AKX880PN/PS
1/2
2/2
MAIN (SOC IO EXPANDER)
24
25
26
27
28
A
B
C
D
DSP_SDO1
DS
E
DSP_WCK
DS
DSP_BCK
DS
DSP_SDO0
DS
F
G
CIRCUIT
H
27
28
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