3. TROUBLE SHOOTING
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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C1645
1.2p
DNI
L1610
C1653
DNI
C1652 100p
L1617
DNI
1p
C1654
DNI
L1608
27p
C1650
L1618
1n
FL1601
EAM62890101
7
5
8
4
9
2
3
1
6
ANT
RX
TX
GND1
GND6
GND2
GND5
GND3
GND4
L1627
15n
L1626
4.7n
6.8n
L1620
L1619
2.7n
EAM62711101
FL1602
ANT
6
RX
1
TX
3
GND1
2
GND6
9
GND2
4
GND5
8
GND3
5
GND4
7
C1646
1p
L1607
DNI
TX_MODULE_TRX_2
TX_MODULE_TRX_4
WTR_PRX_LB_1_IN
LNA_PRX_MB2_IN
DPX
W-BAND
B8
B5
B1
B2
W-BAND
DPX
Shunt cap must be<=33pF
guarantee LNA gain setting time
Place matching components near WTR
Place matching components near WTR
B2
EAM62711201
EAM62890101
EAM62711101
EAM62513501
TP2
C1635
10u
U1602
EAN62885901
SKY77742-21
17
15
13
16
14
10
5
6
4
12
7
3
8
11
1
9
2
RFIN
GND3
VBAT
T
GND4
CPLOUT
VENHB
GND2
VCC
VENLB
GND1
VMODE
RFOUTLB
RFOUTH
B
GND6
GND5
CPLI
N
PGND
DNI
C1643
C1649
DNI
+VPA_BATT0
C1642 100p
1n
C1632
C1637
1n
DNI
C1648
C1636
10n
C1641 100p
DNI
C1647
10n
C163
3
+VPA0
C1634
10u
PA0_R_0
WTR_PDET_IN
WTR_TX3_OUT
PA0_ON_0
PA0_ON_2
CPL_IN_OUT
TP3