4. TROUBLE SHOOTING
- 91 -
LGE Internal Use Only
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CIRCUIT
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
TP08
TP07