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< 1-1-4-1 TRX_WCDMA_B1_B5 Dual >
TRX B2 / B8(G900)
C1602
DNI
TX_MODULE_TRX_2
TRX B1
TX_MODULE_TRX_1
TRX B5 & G850 RX
TX_MODULE_TRX_4
LGE Internal Use Only
+VPWR
Place matching components near WTR
* B2 RX
L1610
DNI
WTR_PRX_MB2_IN
L1608
DNI
C2058
* B8 RX
DNI
B8_RX_IN
FL1600
C1603
DNI
6
1
ANT
RX
C1605
DNI
3
TX
L1600
DNI
2
9
DNI
GND1
GND6
C1609
C1610
4
8
GND2
GND5
DNI
DNI
5
7
GND3
GND4
C1616
B2 DPX
DNI
W-BAND
DPX
PAM
B2
EAM62810601
EAN62629801
B8
EAM62711101
EAN62733701
Place matching components near WTR
* B1 RX
L1611
1n
WTR_PRX_MB1_IN
L1609
3.3n
C2059
33p
B1 DPX
FL1601
6
1
ANT
RX
C1641
3
TX
EAM62711201
2
9
GND1
GND6
4
8
GND2
GND5
5
7
GND3
GND4
Place matching components near WTR
B5 DPX
* B5(G850) RX
FL1602
C1652 100p
C1653
6
1
ANT
RX
WTR_PRX_LB1_IN
15n
3
TX
EAM62671701
L1604
2
9
L1607
6.8n
GND1
GND6
4
8
DNI
GND2
GND5
5
7
GND3
GND4
C1656
DNI
Shunt cap must be<=33pF
guarantee LNA gain setting time
Rev 0.4
CPL_IN_OUT
U1600
Place matching components near WTR
R2005
0
CPL_OUT
VEN
PA0_ON_0
6
5
PA0_R_0
GND
VMODE_0
7
4
PA0_R_1
CPL_IN
VMODE_1
C1607
DNI
8
3
RFOUT
RFIN
9
2
VCC2
VCC1
10
1
PGND
11
C1611
C1612
C1613
SKY77762
DNI
DNI
DNI
C1617
DNI
CPL_IN_OUT
+VPWR
3.3n
13
2
GND5
RFIN
U1602
12
3
VCC
VENHB
PA0_ON_1
11
4
SKY77742-21
GND4
VENLB
PA0_ON_2
10
5
RFOUTLB
EAN62885901
VMODE
PA0_R_0
WTR_PDET_IN
C1655
6.8n
PA LOGIC B1/B5
L1606
POWER MODE
PA_ON_B5
PA_ON_B1
PA0_R0
2.2p
SHUT DOWN
L
L
L
STAND-BY
L/H
L/H
-
H
L
L
B5 HPM
B5 LPM
H
L
H
L
H
L
B1 HPM
L
H
H
B1 LPM
- 201 -
WTR_TX2_OUT
* B2 / B8 TX
+VPWR
Place matching components near WTR
C1643 100p
WTR_TX3_OUT
* B1
* B5
* B1 & B5 TX
PA_THERM_0
Copyright © 2014 LG Electronics. Inc. All right reserved.
6. CIRCUIT DIAGRAM
PAM THERM
+1V8_VREG_L8
R2004
1%
100K
PT2000
100K
C2057
DNI
R2003
1%
220K
Only for training and service purposes
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Troubleshooting
