LG LG-V909DW - Page 160

- 160 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
5 4
6 3
7 2
8 1
U1001
VLVCC
IO_VL1IO_VCC1
IO_VL2IO_VCC2
GNDEN
VDD_1V8
C1003
2.2u
VDD_3V3_ALWAYS
U1002
6
5
7
4
8
3
9
2
01
1
VCC
1B2
1B1
A2
A1
2S
1S
2B0
0B1
GND
C1006
0.1u
R1006 DNI
0.1u
C1000
V_POWERRAIL
DNIR1005
10n
C1004
TP1001
TP
TP1005
TP
u1
1001C
V_USB
V_POWERRAIL
U1004
4 3
5 2
6 1
S
B1
VCCGND
AB0
V_AC
TP1002
TP
TP
TP1003
TP1004
TP
100K R1002
VDD_1V8
TP1000
IC1000
2B 1C 2C
C3A2
C4
D3
D1D4
A1
B1
A3
B4B3
B5A5
C5A4
D5D2
BAT
VB
DN1 COMN1
DP2 COMP2
U1 UID
U2
RES
MIC
AUD1 CAP
AUD2
GND
ISET IC
LCS ADS
TNI
L1001 8.2n
L1002 8.2n
L1000 8.2n
L1003 8.2n
V_POWERRAIL
4001R K001
U1005
65
74
83
92
101
D+ S
D- VCC
GND _OE
HSD2- HSD1+
HSD2+ HSD1-
V_POWERRAIL
0.1u
C1005
0
R1008
GND
UART2_TX_T20
UART2_TX_T20
UART2_TX_T20
UART2_RX_T20
UART2_RX_T20
UART2_RX_T20
UART_SW
GEN1_I2C_SCL
GEN1_I2C_SDA
MUIC_INT_N
ONKEY_N
USB_D-_IFX
USB_D+_IFX
UART_TX
UART_TX
UART2_TX_T20_3V3
UART2_RX_T20_3V3
IFX_UART2_TXD
IFX_UART2_RXD
UART_RX
UART_RX
USB1_DN
USB1_DP
USB_T20_DN
USB_T20_DP
CRADLE_DET
CRADLE_USB_ID
TABLET_USB_ID
USB3_T20_DN
USB3_T20_DP
USB_CP_DP
USB_CP_DP
USB_CP_DN
USB_CP_DN
USB_CP_SW
MUIC
UART Level Shifter
NC
Test TP for SMT Line
90ohm matching !!
S1, S2
CRADLE_USB_ID
NC
1
0
B1B0
NC
S
HSD1(MUIC)
ON
1B0,2B0 (AP) 1B1,2B1 (CP)
0
1
OFF
ON
OFF
UART Switch
Close to u-USB connector
USB_CP_SW S/W
HSD2(T20:USB3)HIGH
USB Switch
LOW
MUIC/UART Switch
¡Ø Default Path : AP UART
Differential 90ohm matching !!