LG CU920 Manual page 178

7. CIRCUIT DIAGRAM
1 2 3
A
BLUETOOTH
1000p
B
C102
C101
1000p
U101
RB04
L102 1
GND1
0
16 7
ANT GND2
15
GND3
C103 C124
1.2p
NA VREG_BT_2.85V
C
C106
1u
C105
C104
1000p
1u
C107
100p
C109
C110
100p 0.1uF
VREG_MSMP_2.8V
D
E
U103
1
+VPWR PIN
2
IN
F
3
GND
24
PGND
29
BGND
20
LCD_BL_CTRL ENM1
19
ENM2
21
ENF
18
CAM_LDO_EN ENLDO
28
P1
17
P2
8
SETM
C
7
SETF
6
REFBP
C121 C118
10u
0.01u
D
E
F
1 2 3
LGE Internal Use Only
4 5 6 7
TC7S04FU
GND
U100
3
TCXO_BT
4 2
C100
5
100p
VCC
100K
R100
C108
2.2u
MAX8645Y
23
C1P
1u C115
22
C1N
26 C116 1u
C2P
27
C2N
25
OUT WLED_PWR
16
M1 WLED_1 VREG_MSMP_2.8V
15
M2 WLED_2 JTAG_TDI
14
M3 WLED_3 JTAG_PS_HOLD
13
M4 WLED_4 MSM_RESIN_N
12
M5 WLED_5 JTAG_RTCK
11
M6
10
F1
9
F2
4
LDO1 VREG_CAM_2.8V
5
LDO2 VREG_CAM_1.8V
C119 C120 C117
1u 1u 10u
4 5 6 7
8 9 10 11
TOUCH WINDOW
VREG_TOUCH_2.8V
C122 C123
1u 0.1u
TP103
TOUCH_PENIRQ
CN102
G1
1
2
3
4
5
6
G2
SIM/T-FLASH SOCKET
R102
15K
J100
4 1
GND VCC VREG_USIM_2.85V
5 2
VPP RST USIM_P_RST_N
6 3
USIM_P_DATA I_O CLK USIM_P_CLK
8 7
GND2 GND1
C114
33p
UART_TX
UART_RX
CN100
G1
WLED_5
1 10
JTAG_TCK WLED_4
2 9
JTAG_TMS WLED_3
3 8
JTAG_TRST_N WLED_2
4 7
JTAG_TDO WLED_1
5 6
JTAG_TDI
JTAG_PS_HOLD
G2
MSM_RESIN_N
JTAG_RTCK
JTAG_TDO
VREG_TOUCH_2.8V
CAM_LDO_EN
VREG_CAM_2.8V
VREG_MSMP_2.8V
VREG_USIM_2.85V
TP100
UART_TX VREG_CAM_1.8V
USIM_P_CLK
USIM_P_DATA
TP101
UART_RX USIM_P_RST_N
TP102
PM_ON_SW_N
8 9
- 180 -
12 13 14 15
U104 TSC2007IYZGR
A1 C1
AUX SDA TOUCH_SDA
A2 C2
VDD_REF A1
A3 C3
X+ X-
B1 D1
PENIRQ- SCL TOUCH_SCL
B2 D2
A0 GND
B3 D3
Y+ Y-
U102
7 P_GND
6 IO4 IO1 1
USIM_P_DATA USIM_P_CLK
5 5V_NC NC 2
4 3
IO3 IO2
VREG_USIM_2.85V USIM_P_RST_N
EDTY0009201
CN101
1 50
2 49
PM_ON_SW_N
3 48
LCD_BL_CTRL
4 47
5 46
+VPWR
6 45
7 44
8 43
WLED_PWR
9 42
10 41
JTAG_TCK
11 40
JTAG_TMS
12 39
JTAG_TRST_N
13 38
TOUCH_SCL
14 37
TOUCH_SDA
15 36
TOUCH_PENIRQ
16 35
BT_TX_RX_N
17 34
BT_SBST
18 33
BT_SBCK
19 32
BT_SBDT
20 31
BT_DATA
21 30
VREG_BT_2.85V
22 29
23 28
BT_CLK
24 27
TCXO_BT
25 26
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
16
A
B
C
D
E
F
C
D
E