LG D405 Service Manual page 44

TX_MODULE_TRX_2
TX_MODULE_TRX_4
+VPA0
C1635
10u
13
12
11
10
LGE Internal Use Only
FL1601
L1618
6
ANT
1n
2
GND1
4
GND2
5
GND3
FL1602
6
C1650 27p
ANT
2
GND1
4
GND2
5
GND3
C1634
10u
2
GND5 RFIN
U1602
3
VCC VENHB
4
SKY77742-21
GND4 VENLB
5
EAN62885901
RFOUTLB VMODE
WTR_PDET_IN
EAM62890101
1
RX
3
TX
9
GND6
8
GND5
7
GND4
EAM62711101
C1652 100p
1
RX
3
TX
9
GND6
8
GND5
7
GND4
+VPA_BATT0
TP3
PA0_ON_0
C1641 100p
PA0_ON_2
PA0_R_0
- 44 - Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
LNA_PRX_MB2_IN
L1619 2.7n
L1627 15n
WTR_PRX_LB_1_IN
L1626 4.7n
Shunt cap must be<=33pF
guarantee LNA gain setting time
B2, B5, B8
WTR_TX3_OUT
C1642 100p
Only for training and service purposes
TP2