- 122 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
R241
100K
1V8_VDD
24
2
R
I
N
D
0.1u
C255
R249
100
DNI
FB207
33u
C263
R237
0
CN201
15
13
11
9
7
5
4
3
2
1
14
12
10
8
6
C201
270p
R239
0
U201
6
5
7
4
8
3
9
2
10
1
11
PGND
VIN
BATT
ISET
PGB
GND1
CHGSB
LDO
GND2
IEOC
EN_SET
MIC201
6
5
4
3
2
1
OUT
G1
G2
G3
PWR
G4
50
2L
n0
01
VA209
2.2uF
C203
FB211
1800
C260
39p
J201
2
3
4
5
6
1
M5
M4
M3
M4F
M1
M6
D202
VA207
C239
47p
1V8_VDD
C252
39p
CN203
2
1
120
FB208
120
FB209
120
FB201
220
FB210
S201
GND
DAT2
CD_DAT3
CMD
VDD
CLK
VSS
CARD_DETECT
DAT0
COVER_DETECT1
DAT1
D201
DNI
C235
83
2
C
n2
2
10u
C232
C261
39p
VA215
C148 0.1u
0.1u
C147
100K
R247
DNI
R215
C206
100pF
1V8_VDD
VBUS_USB
U202
3
B
A4
C3
C2
2
B
D1
D3
4
D
C1
A1
D2
1
B
D5
A2
A5
A3
B5
4
B
C5
4
C
D
N
G
OUT+
D
D
V
P
H
CPVDD
CPVSS
CN
HPL
OUT-
S
AI
B
IN2-
HPR
IN1+
D
D
V
S
IN3-
IN2+
A
D
S
IN1-
IN3+
CP
L
C
S
C207
2.2u
0.1u
C208
C209
0.1u
C210
2.2u
C211
2.2u
C212 1u
C213 1u
10
R208
C214
47p
C215
47p
C216
0.1u
C217
0.1u
C218 2.2u
C219 2.2u
Q201
S
G
D
R201
20
1M
R248
I
N
D
42
2
R
VA203
C220
47pF
C221
47pF
R202
1
1
R203
20
R204
C222 2.2u
1800
FB205
1V8_VDD
C223
1u
0.1u
C224
0
R205
51K
R206
VBUS_USB
1u
C225
VA201
R209
2.2K
CN202
3
2
4
1
R210
100K
VA202
1V8_VDD
0.1u
C226
C227
39p
VBAT
100K
R211
C228
0.1u
2.2K
R212
10
R213
VBUS_USB
VBAT
C229
2.2u
DNI
R214
VBAT
2.2u
C230
1000
FB202
U203
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
C231
1.5n
1V8_VDD
10u
C233
U204
4
3
2
5
1
IN+
VCC
GND
IN-
OUT
VBAT
0
R240
0.1u
C234
R216
1
1
R217
VHSMIC
s
mh
o
K5.
1
81
2
R
DNI
C244
00
81
30
2
BF
02
2
R
s
mh
o
K0
22
12
2
R
s
mh
o
M1
120pF
C236
C237
24pF
L201
0.1uH
FB204
1800
SC201
2
1
47ohms
R222
L202
0.1uH
1V8_VDD
R223
DNI
VA204
0.1uH
L203
VAUX
10pF
C240
R226
2.2Kohms
560pF
C241
C242
560pF
VA205
L204
0.1uH
VA206
R227
1.2K
3.9K
R228
C245 1u
C246 1u
C247 1u
C248 1u
R229
47ohms
VMMC
FB206
600
47K
R230
47K
R231 R232
47K
R233
47K
R234
47K 47K
R235
DNI
C249 C250
2.2uF
1V8_VDD
100Kohms
R236
C251
0.001uF
VA208
65
2
C
0.022uF
10u
C253
C254
39p
VMIC
CHG_EN
MUIC_INT
I2C_SCL
I2C_SCL
I2C_SDA
I2C_SDA
HOOK_DETECT
USD_DET
BAT_TEMP
HS_MIC_N
USD_CLK
USD_CMD
USD_D1
USD_D2
USD_D3
LDO_OUT
USB_DP
USB_DM
UART_TX
UART_RX
EPN
EPP
_EOC
USD_D0
HP_LOUT
HP_LOUT
HP_ROUT
HP_ROUT
MUIC_ID
MUIC_ID
MUIC_DM
MUIC_DM
MUIC_DP
MUIC_DP
JACK_DETECT
RCV_SPK_N
RCV_SPK_N
RCV_SPK_P
RCV_SPK_P
HSL
HSR
MIC_P
HS_MIC_P
EAR_GND
EAR_GND
EAR_GND
MIC_N
FM_ANT
MIC_GND
Ichg=530/Riset=481.8mA
Ieoc=Rieoc/200=19.5%(93.95mA)
MUIC
need to replace to 1%
(5%)
(1%)
SPK
5PIN CONNECTOR
(25V)
(25V)
3.5phi HEADSET
AUDIO AMP SUB SYSTEM & SIGNAL DISTRIBUTOR
(1%)
(10V)
(10V)
BATTERY CONNECTOR
(1%)
( USB & TA &UART )
CHARGING IC
MICROPHONE
u-SD CARD