LG KB770 Service Manual page 163

7. CIRCUIT DIAGRAM
1 2 3
A
BLUETOOTH
B
C101
1000p
U101
RB04
L102
GND1
0
16
ANT GND2
GND3
C103 C124
DNI
DNI
C
C106
1u
C105
C104
1000p
1u
C110
100p
D
E
+VPWR
F
LCD_BL_CTRL
CAM_LDO_EN
C
C121
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
1000p
100p
C102 VCC
100K
R100
1
7
15
VREG_BT_2.85V
C108
2.2u
C107
100p
C109
0.1uF
VREG_MSMP_2.8V
U103 MAX8645YETI+T
1 23
PIN C1P
2
IN 1u C115
22
C1N
C116 1u
3 26
GND C2P
24
PGND
29
BGND
27
C2N
25
OUT WLED_PWR
20
ENM1
19
ENM2
21 16
ENF M1 WLED_1 VREG_MSMP_2.8V
18 15
ENLDO M2 WLED_2
28 14
P1 M3 WLED_3 JTAG_PS_HOLD
17 13
P2 M4 WLED_4 MSM_RESIN_N
12
M5 WLED_5
11
M6
8 10
SETM F1
9
F2
7
SETF
4
LDO1 VREG_CAM_2.8V
6 5
REFBP LDO2 VREG_CAM_1.8V
C119 C120 C117
10u
1u 1u
C118
10u
4 5 6 7
8 9 10 11
VREG_TOUCH_2.8V
C122 C123
1u 0.1u
TOUCH_PENIRQ
CN102
G1
G2
R102
15K
J100
4 1
GND VCC
5 2
VPP RST
6 3
USIM_P_DATA I_O CLK
8 7
GND2 GND1
CN100
G1
1 10
JTAG_TCK
2 9
JTAG_TDI JTAG_TMS
3 8
JTAG_TRST_N
4 7
JTAG_TDO
5 6
JTAG_RTCK
G2
TP100
UART_TX
TP101
UART_RX
TP102
PM_ON_SW_N
8 9
- 164 -
12 13 14 15
TOUCH WINDOW
U104 TSC2007IYZGR
A1 C1
AUX SDA TOUCH_SDA
A2 C2
VDD_REF A1
A3 C3
X+ X-
TP103 B1 D1
PENIRQ- SCL TOUCH_SCL
B2 D2
A0 GND
B3 D3
Y+ Y-
1
2
3
4
5
6
SIM/T-FLASH SOCKET
VREG_USIM_2.85V
U102
7 P_GND
USIM_P_RST_N
USIM_P_CLK
6 IO4 IO1 1
USIM_P_DATA USIM_P_CLK
5 5V_NC NC 2
C114
4 IO3 IO2 3
33p VREG_USIM_2.85V USIM_P_RST_N
EDTY0009201
CN101
1 50
2 49
UART_TX PM_ON_SW_N
3 48
UART_RX LCD_BL_CTRL
4 47
5 46
WLED_5 +VPWR
6 45
WLED_4
7 44
WLED_3
8 43
WLED_2 WLED_PWR
9 42
WLED_1
10 41
JTAG_TDI JTAG_TCK
11 40
JTAG_PS_HOLD JTAG_TMS
12 39
MSM_RESIN_N JTAG_TRST_N
13 38
JTAG_RTCK TOUCH_SCL
14 37
JTAG_TDO TOUCH_SDA
15 36
VREG_TOUCH_2.8V TOUCH_PENIRQ
16 35
BT_TX_RX_N
17 34
CAM_LDO_EN BT_SBST
18 33
VREG_CAM_2.8V BT_SBCK
19 32
VREG_MSMP_2.8V BT_SBDT
20 31
VREG_USIM_2.85V BT_DATA
21 30
VREG_CAM_1.8V VREG_BT_2.85V
22 29
USIM_P_CLK
23 28
USIM_P_DATA BT_CLK
24 27
USIM_P_RST_N 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