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8. Circuit diagram
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
R338
1
R339
1
220
FB301
FB302
220
TP302
C301
4.7u
CN305
3
2
1
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8
7
6
5
4
3
2
1
LGE Internal Use Only
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8
7
6
5
4
3
2
1
VA300
TP300
VA16
VA15
FL300
0
1
5
6
4
7
3
8
2
9
1
INOUT_A1
INOUT_B1
INOUT_A2
INOUT_B2
INOUT_A3
INOUT_B3
INOUT_A4
INOUT_B4
1
G
2
G
C300
1u
VA14
VA13
CN300
2
1
2V62_VIO
U304
5
3
2
4
1
VOUT
VDD
GND
CE
D
N
G
P
2.2K
R302
VA301
FL301
43
21
NI
T
U
O
1
G
2
G
VBAT
2V62_VIO
100K
R304
C302
0.1u
VA302
VBUS_USB
R306
10K
1u
C304
2V62_VIO
C305
1u
1u
C306
VBUS_USB
0
0
8
1FB300
R309
300K
VBAT
10K
R310
2.2u
C307
1.5K
R311
CN1
15
13
11
9
7
5
4
3
2
1
14
12
10
8
6
U300
5
6
7
4
8
3
9
2
10
1
11
PGND
IN
BAT
ISET
_PG
VSS1
CHG
LDO
VSS2
EN_SET
IFULL
2V62_VIO
C310
2.2u
CN302
21
20
22
19
23
18
24
17
25
16
26
15
27
14
28
13
29
12
30
11
31
10
32
9
33
8
34
7
35
6
36
5
37
4
38
3
39
2
40
1
2V62_VIO
VBAT
VBUS_USB
R313
10K
2V62_VIO
R315
2.2K
2V62_VIO
FL302
0
1
5
6
4
7
3
8
2
9
1
INOUT_A1
INOUT_B1
INOUT_A2
INOUT_B2
INOUT_A3
INOUT_B3
INOUT_A4
INOUT_B4
1
G
2
G
C315
1u
1u
C316
C317
1u
2V85_VLCD
R337
10K
VBAT
FL303
0
1
5
6
4
7
3
8
2
9
1
INOUT_A1
INOUT_B1
INOUT_A2
INOUT_B2
INOUT_A3
INOUT_B3
INOUT_A4
INOUT_B4
1
G
2
G
R319
10K
1u
C318
U301
2
15
1
10
14
13
3
12
11
9
6
8
5
7
4
C1+
C2+
C1-
C2-
OUTCP
IN
D1
D2
EN_SET
D3
D4
GND
D5
PGND
D6
R320
100K
DNI
R321
820
R322
C319
1u
C320
22p
U302
B5
C5
2
B
1
C
2
C
C3
A2
C4
D3
D1
D4
A1
B1
A3
B4
B3
A5
A4
D5
D2
BAT
VB
DN1
DP2
U1
UID
U2
RES
MIC
AUD1
CAP
AUD2
GND
ISET
IC
L
C
S
A
D
S
T
NI
COMN1
COMP2
VA17
CN303
3
2
1
U303
5
4
6
3
7
2
8
1
LEDA
SCL
LEDC
SDA
VCC
VIO
VOUT
GND
C327
2.2u
3.3
R330
C329
2.2u
100K
R332
2V8_PROX
VBAT
2V62_VIO
C328
1u
2V8_PROX
R331
10
2.2u
C326
C325
2.2u
0.1u
C324
2V62_VIO
I2C2_SDA
I2C2_SCL
I2C1_SDA
I2C1_SCL
LCD_WR_N
LCD_VSYNC
LCD_RESET
LCD_CS_N
LCD_DATA[7]
LCD_DATA[6]
LCD_DATA[5]
LCD_DATA[4]
LCD_DATA[3]
LCD_DATA[2]
LCD_DATA[1]
LCD_DATA[0]
LCD_ADS
UART_TX
UART_RX
RPWRON_EN
RPWRON_EN
MUIC_INT
LCD_BL_CTRL
_PPR
CHG_EN
KEYIN1
KEYOUT1
LCD_ID
END_KEY
IF_MODE[1]
IF_MODE[0]
USB_DM
USB_DP
MLED
MLED
MLED2
MLED2
MLED3
MLED3
MLED1
MLED1
MLED4
MLED4
MLED5
MLED5
MLED6
MLED6
MUIC_DP
MUIC_DP
MUIC_DM
MUIC_DM
MUIC_ID
MUIC_ID
KEYOUT0
KEYOUT0
_CHG_EOC
KEYIN0
KEYIN2
LCD_RD_N
PROX_INT
???
Maker
( USB & EAR MIC & TA &UART )
L
(25V,K,X5R, 1608)
???
IF1
SHARP
POWER KEY
CAM & MULTI TASK KEY
CHARGING IC
L
???
MUIC
IF2
VOLUME KEY
LCD Backlight
LCD Interface Mode
LCD Connector
PIN1
PIN40
PIN20
PIN21
5PIN CONNECTOR
KEYIN1
KEYIN2
CAM
(10V,K,X5R, 1005)
ECZH0001215
MULTI TASK
PROXIMITY LDO(2.8V, 300mA)
PROXIMITY SENSOR
KEYOUT0
ADD 090410