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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
34
5
C
p2
2
24
5
C
u1.
0
C548
4.7u
u1
44
5
C
D510
2
3
1
1
A
C
2
A
03
5
R
K0
72
C545
4.7u
C546
4.7u
4.7u
C547
2.2u
C550
C508
2.2u
V_LDO4_1V8
30
5
R
M5.
1
11
5
R
K0
74
2.2u
L501
TP505
82
5
R
K0
34
K8
1
01
5
R
0
R523
U502
5
3
2
4
1
VOUT
VDD
GND
CE
D
N
G
P
C549
2.2u
72
5
R
K5
12
92
5
R
K5
12
C500
220p
10u
C504
V_POWERRAIL
14
5
C
u7.
4
VDD_3V3
K0
22
40
5
R
1M
R501
U500
2
17
5
14
1
13
10
11
6
3
9
8
12
4
16
15
7
EN
LX1
NC3
FB
VP1
NC2
VCC
PGND1
NC1
VP2
VP3
LX3
PGND3
LX2
SGND
EXPOSED_GND
PGND2
L500
4.7u
V_POWERRAIL
D500
VDD_5V0
20
5
C
u7.
4
U501
4
3
5
2
6
1
SW
VIN
GND
VOUT
FB
_SHDN
u0
1
30
5
C
53
5
C
p7
4
C509
2.2u
C510
2.2u
SW500
4
2
3
1
52
5
R
K0
01
C534
22u
K8
1
60
5
R
D503
R522
200K
42
5
R
K0
01
V_POWERRAIL
13
5
C
u2.
2
u
1
60
5L
2
3
5
C
n
7
4
U505
5
1
8
7
9
6
10
5
11
4
12
3
13
2
14
1
CT
RSET
EN_SET
FLOUTA
FLEN
FLGND
AGND
FLOUTB
IN
FLINH
LX
GND
PGND
OUT
G
UL
S_
G
L502
15u
0.1u
C506
C501
470n
U503
1
B
E1
C2
B2
C1
E2
D3
C3
A1
C4
B3
A3
D4
E3
D2
B4
E4
2
A
1
D
4
A
TT
A
B
V
2
NI
V
1
NI
V
VINB
LDO1
FB
SW
GNDB
LDO2
IRQ_N
SDA
LDO3
SCL
DVS
EN
LDO4
DEFSEL
IDSEL
LDO5
D
N
G
1u
C517
V_GM_2V8
V_DE_2V7
1u
C522
1u
C525
V_IO_1V8
V_DI_1V2
1u
C528
V_POWERRAIL
10u
C507
R505
100K
VDD_V2V2
10K
R502
VDD_5V0_HDMI
u1
91
5
C
V_POWERRAIL
TP501
VDD_V2V2
Q501
D
G
S
Q500
D
G
S
TP502
VDD_V2V2
1M
R507
R512
100K
u0
1
21
5
C
u0
1
11
5
C
VDD_WLED
39p
C513
U504
E1
E2
E3
C3
A3
A4
2
A
1
A
4
E
5
B
D4
D3
B4
B3
C5
C2
D5
D2
E5
A5
C4
2
B
1
B
1
C
1
D
O
DL
V
NI
V
1
W
S
2
W
S
VDDIO
FB
OUT1
VSYNC
OUT2
FILTER
OUT3
ISET
FSET
SCLK
SDA
S_
D
N
G
L_
D
N
G
1
W
S_
D
N
G
2
W
S_
D
N
G
PWM
EN
FAULT
OUT4
OUT5
OUT6
C505
0.1u
C514
4.7u
Q502
5
3
2
4
1
VOUT
EN
GND
VIN
D
N
G
P
R517
18K
V_POWERRAIL
VDD_3V3_ALWAYS
00
5
R
K8
1
C552
1u
C551
1u
u0
1
32
5
C
U506
7
13
6
8
5
9
4
10
3
11
2
12
1
FB2
FB1
EN2
EN1
AVIN
PGOOD
SW2
VIN
AGND
SW1
PGND
T_GND
_FPWM
L507
2.2u
VDD_1V2
63
5
C
u2.
2
C537
1u
V_POWERRAIL
C538
10u
2.2u
L508
93
5
C
p7
4
04
5
C
u2.
2
VDD_1V8
R531
0
CAM_I2C_SCL
CAM_I2C_SDA
WLED_EN
VDD_5V0_EN
CAM_EN
AP_ONKEY
FLASH_LED_INH
FLASH_LED_TORCH
FLASH_LED_EN
ONKEY_N
TEMP_THERM_N
WLED4
WLED3
WLED2
WLED1
GSM_TXON_IND
RESUME
HOT_RST_N
PG_VDDIO_SYS
VDD_3V3_EN
FLASH_A
FLASH_C
LCD_PWM
VDD_3V3_ALWAYS_EN_1
VDD_3V3_ALWAYS_EN_1
VDD_3V3_ALWAYS_EN
1.2V/1.8V
5V (HDMI & USB HOST)
m
m
0
.
1
3.3V
close to FB
WLED Driver for 8.9" LCD
CAMERA PMIC
Reset
Power On/Off
Power keys & DCDC's
1.5mm
m
m
0
.
2
m
m
0
.
2
2.0mm
1.0mm
0.7mm
1.0mm
3.3V (Always)
m
m
5
.
1
CAMERA FLASH LED
Flash Mode : 810mA
Movie Mode : 111mA
1%
CAMERA FLASH LED DRIVER
Routing line must be thick enough to support 1A!!
anode
cathode
1.0 mm
1.0 mm
0.5 mm
0.5 mm
m
m
0
.
2
1.0mm
1.0mm
1.0mm
1.0mm