LG -P768 Service Manual page 74

Typical USB path
TP2
uUSB Connector
Rev.B: Size Change
FL1301
4 2
USB_DM
D4 D2
3 1
D3 D1
USB_DP
USB_ID
D1308
RCLAMP0521PA_TCT
Lower_Ant FPCB Connector
(1T, 30 Pin)
ENBY0040701
CN903 GB042-30S-H10-E3000
1 30
2 29
3 28
4 27
5 26
6 25
USB_VBUS_CON
7 24
8 23
9 22
USB_DP
10 21
USB_DM
11 20 revA(R[1]) -> revB(R[2]) : for home key
12 19
USB_ID
13 18
MICBIAS revA(R[0]) -> revB(GND) : delete quick key
14 17
15 16
VBAT
LSCR523EBFS8
USBA0_OTG_DM/UART3_TX_IRTX/UART2_TX/GPIO_180/SAFE_MODE
USBA0_OTG_DP/UART3_RX_IRRX/UART2_RX/GPIO_179/SAFE_MODE
LGE Internal Use Only
CN1301
10 8
1
6 2
3
ZD1307 C1301 2 C1302
7 4
5 680p
39p
1
11 9
D1309
PESD12VS1UB
EAG63090001
04-5161-005-100-868
90ohm matching !!
VIB_L_P
VIB_L_N
MMIC_P
AMIC_GND
AUD_SPK_N
AUD_SPK_P
P760_RevD/P768_RevB : Delete R915
KEY_R[2]
KEY_C[1]
3
1 R911
FRONT_KEY_LED_EN/
Q902
4.7K
2
EBK61572201
HIGH : ON
LOW : OFF
USBA0_OTG_CE
CN1300
1
2
VCHG VCHG 3
4
5
VCHG
6
7
8
9
USB_DP
USB_DM 10
11
12
USB_ID
13
MICBIAS
14
15
VBAT
12.04.10 Pin map Changed
MICRO USB CONN. + MUIC
USB_VBUS_CON
VCHG
2mm
FL700
NFM18PC104R1C3
IN OUT
GND1 GND2
C729
SFEY0015301
10n
USB_DM
USB_DP
USB_ID
USB_ID1
R723
D700
C736
10n
B4
B5
C3
- 74 - Copyright © 2012 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
30
VIB_L_P
29
28 VIB_L_N
27
MMIC_P
26
AMIC_GND
25
24
AUD_SPK_N
23
AUD_SPK_P
22
21
EU Rev.E: R[1]->R[2]
KEY_R[2]
20
KEY_C[1]
19
18
Rev.E: Add GND
17
16
LED_C
VBAT
rev1.0 : delete USB_DM/DP/ID, VBUS,GND TP
C726
100n
E1 C4
VBUS UART_TX
USB-
E2 C3
DM UART_RX
USB+ E3
DP
D3 D4
ID USB_DM
90ohm matching !!
E4
USB_DP
IC701
2.2K
A3 D1
R2_2K AUDIO_L
TSU5611YZPR
C1
AUDIO_R R720 R721 R722
A4
56K 1.5K 1.5K
EAN62210001 MIC
C2
DSS
B3
_INT
A1 A2
CLDO SDA
B2
SCL
D2
GND
R724
DNI
TP703
USB_DM_OMAP
USB_DP_OMAP
Only for training and service purposes
UART_TX
90ohm matching !!
UART_RX
VSEL_1.8V
USB_DM_OMAP
USB_DP_OMAP
MUIC_INT/
I2C3_SDA
I2C3_SCL
USB
MUIC