- 80 -
LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
79/140
CIRCUIT
2. TROUBLE SHOOTING
VMIC
41
C
31
D
21
A
11
A
01
D
01
B
7
A
7
B
01
A
9
B
21
C
11
B
N
SL
P
SL
1
N
CI
M
1
P
CI
M
2
N
CI
M
2
P
CI
M
CI
M
U
V
CI
M
V
N
P
E
P
P
E
L
S
H
R
SL
P_
CI
M
N_
CI
M
N_
C
E
R
P_
C
E
R
P_
CI
M_
S
H
N_
CI
M_
S
H
T
U
O
R_
P
H
T
U
OL
_
P
H
1M
R260
R276
820
KTJ6131E
EQFP0007601
Q201
S
G
D
1n
C205
C200
1u
1u
C251
3V3_VUSB
10K
R247
1.5K
R246
C256
0.022uF
R245
2.2K
44
2
R
s
mh
o
K0
03
TP201
VBAT
0.1uF
C255
C254
27pF
VAUX
27pF
C252
1V8_VDD
R242
100Kohms
10K
R241
RT8962
EUSY0406901
U203
2
B
1
C
2
C
C3
A2
C4
D3
D1
D4
A1
B1
A3
B4
B3
B5
A5
C5
A4
D5
D2
BAT
VB
DN1
COMN1
DP2
COMP2
U1
UID
U2
RES
MIC
AUD1
CAP
AUD2
GND
ISET
IC
L
C
S
A
D
S
T
NI
C253
FB203
120
0.1u
C257
DSS
FB202
600
22ohms
R208
R207
22ohms
C214
39pF
VBUS_USB
0.022uF
C212
C209
27pF
2.2uF
C208
10K
R204
2.2K
R203
10
R257
FB201
600
1n
C207
VAUX
C219
100u
C220
100u
MUIC_INT
I2C_SDA
I2C_SCL
HS_MIC_P
HS_MIC_N
HP_ROUT
HP_LOUT
UART_TX
UART_RX
MUIC_DM
MUIC_ID
MUIC_DP
USB_PWR_EN
USB_DM
USB_DP
MUIC
(2.2uF,6.3V,10%,1005)
ECCH0000198
100uF,4V ,M ,STD ,2012 ,R/TP
ECTH0005202
GU073-5P-SD-E1500
ENRY0008801
CN1
15
13
11
9
7
5
4
3
2
1
14
12
10
8
6
D201
180n
L202
VBUS_USB
1n
C244
6.8p
C245
MUIC_DM
MUIC_ID
FM_ANT_1
MUIC_DP
C219
C220