4. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
TOP Side
U103
PA
TP1(RF IN)
TP2(RF OUT)
TP3
C199
0.5p
C193
2.2u
C160
2.2u
C157
0.1u
U103
PGND
11
VEN
5
RF_OUT
9
RF_IN
2
VBAT
1
VCC
10
GND
7
VMODE1
3
CPL_IN
8
VMODE0
4
CPL_OUT
6
L119
4.7n
5.6p
C161
DNI
C158
7
8
9
3
1
RX1
TX
GND5
RX2
GND4
L173
1.2n
DNI
C154
C153
5.6p
DNI
C155
L166
8.2n
36
R109
27
R108
27
R107
C159
1n
C163
3.3p
DNI
L122
PDET
VBATT
RX_W1900_W2100_INP
RX_W1900_W2100_INN
PA_R1
PA_R0
+3V4_VWPAM_MTK
W1900_2100_TX_IN
PA_ON_W1900_2100
B1
B1
W1900_W2100 TX
REV.1.0
REV.1.0
TP3
TP2(RF OUT)
TP1(RF IN)