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Typical USB path
HDMI_TXCN
HDMI_TXCP
HDMI_TXD1P
HDMI_TXD1N
HDMI_TXD0N
HDMI_TXD0P
HDMI_TXD2N
HDMI_TXD2P
HDMI_INT
CRADLE_DET
Differential 90ohm matching !!
USB_T20_DN
USB_T20_DP
USB_CP_DN
USB_CP_DP
UART_RX
UART_TX
USB1_VBUS
LGE Internal Use Only
V_USB
0.7 mm
C1208
0.1u
MUIC
V_POWERRAIL
C1000
0.1u
D2
BAT
L1000
8.2n
A4
DN1
L1001
8.2n
A5
DP2
L1002
8.2n
B3
IC1000
U1
L1003
8.2n
A3
U2
A1
MIC
D4
AUD1
D3
AUD2
A2
ISET
TP1000
GEN1_I2C_SCL
GEN1_I2C_SDA
100K
R1002
VDD_1V8
MUIC_INT_N
USB_T20_DN
USB_T20_DP
USB1_ID
USB3_T20_DN
USB3_T20_DP
R144
1K
V_POWERRAIL
VDD_5V0_HDMI
CN1204
1
34
2
33
3
32
4
31
5
30
6
29
7
28
8
27
9
26
10
25
11
24
12
23
13
22
14
21
15
20
16
19
17
18
C1211
GB042-34S-H10-E3000
0.1u
V_USB
90ohm matching !!
D5
VB
C5
USB1_DN
COMN1
B5
COMP2
USB1_DP
B4
UID
B1
RES
TABLET_USB_ID
D1
CAP
C4
GND
C3
C1003
IC
2.2u
AD17
AC14
AD14
AE14
AH14
AH15
AG15
AF15
AC16
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Copyright © 2011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
SPK_L2-
SPK_L2+
SPK_R-
SPK_R+
DDC_SDA
DDC_SCL
TABLET_USB_ID
USB1_DP
USB1_DN
C1222
0.1u
V_POWERRAIL
U1004
6
1
CRADLE_DET
B1
S
5
2
GND
VCC
4
3
B0
A
CRADLE_USB_ID
C1006
0.1u
R1008
0
USB1_VBUS
USB1_DN
USB1_DP
USB1_ID
USB3_VBUS
USB3_DN
USB3_DP
USB3_ID
USB_REXT
Only for training and service purposes
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Table of Contents
Troubleshooting
