4. TROUBLE SHOOTING
- 99 -
LGE Internal Use Only
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CIRCUIT
C509
47n
C508
47n
C514
2.2u
C513
DNI
39p
C510
M501
EUSY0420001
TPA2055D3
3
D
1
C
2
E
2
A
C2
B2
B4
A4
B3
E1
A3
D1
A1
C3
B1
E4
E3
C4
4
D
2
D
D
D
V
P
H
D
D
V
P
S
IN3-
OUT+
OUT-
HPL
IN3+
HPR
CP
IN1+
CN
IN1-
IN2+
IN2-
SDA
SCL
S
AI
B
D
D
V
P
C
S
S
V
P
C
D
N
G
39p
C511
C512
DNI
1800
FB506
C515
2.2u
R507
0
0.1u
C504
1800
FB505
C517
2.2u
C503
10u
2.2u
C505
47n
C537
47n
C536
VBAT
C516
2.2u
VDD_IO_1V8
HS_OUT_R
HS_OUT_L
HS_GND
I2C_SDA
I2C_SCL
SPK_P
SPK_N
SPK_HS_L
SPK_HS_R
AMP_HS_P
AMP_HS_N
1n
C232
C235
47p
47p
C237 C236
47p
47p
C234
C228
47p
47p
C227
C226
DNI
C225
DNI
1n
C233
VMIC_BIAS_P
C239
220n
2.2K
R218
R217
2.2K
VDD_IO_1V8
VAUD_HS_BIAS
TP204
T12
P13
R12
P15
P14
T15
R15
T14
R14
N17
N18
T16
R16
M18
M17
K17
P11
P4
J4
T2
J5
G1
L4
J3
1
1
F
1
T
8
1
T
8
1
A
1
A
1
1
R
7
A
7
B
0
1
C
0
1
B
0
1
A
0
1
D
0
K
L
C
_
1
S
2
I
X
R
_
1
S
2
I
X
T
_
1
S
2
I
0
A
W
_
1
S
2
I
L
C
S
_
C
2
I
A
D
S
_
C
2
I
F
F
O
N
O
1
C
N
2
C
N
3
C
N
4
C
N
S
F
D
D
V
BC1_n
BC2_n
BC3_n
SDCLKO
BFCLKO_0
BFCLKO_1
CKE
ANAMON
FSYS_EN
EPN
EPP
HSL
HSR
LSN
LSP
MICN1
MICP1
MICN2
MICP2
VMIC
VUMIC
ACD
AGND
VREF
HS_MIC_N
PWRON
HS_MIC_P
MAIN_MIC_P
DDR_DQS[1]
DDR_DQS[0]
DDR_DQM[1]
ST
R_
T
R
A
U_
T
B
ST
C_
T
R
A
U_
T
B
T
U
O_
M
C
P_
T
B
NI
_
M
C
P_
T
B
BT_CLK_REQ
I2C_SDA
I2C_SCL
HS_JACK_DET
SPK_HS_L
SPK_HS_R
DDR_CLK_P
DDR_CKE
DDR_CLK_N
MAIN_MIC_N
RCV_HS_N
RCV_HS_P
1T
NI
E
6T
NI
E
0T
NI
E
TP01
TP0
BB Chip