LG LG-V909DW - Page 74

4. TROUBLE SHOOTING
- 74 -
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Only for training and service purposes
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Battery Level check (AWS)
FIG 17 Schematic of WCDMA IV Power Supply
Duplexer and Power amplifier
FIG 18 Schematic of WCDMA I, VIII Duplexer and PA Stage
FIG 19 Schematic of WCDMA IV Duplexer and PA Stage
{wGYG
{wGZG
{
wG\
{wG[
{wG]
{wG^
{wG_
100p
C137
2.2u
C126
330p
C127
VBAT
100p
C135
330p
C125
100p
C136
U101
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VMODE_1CPL_IN
VMODE_0GND
VENCPL_OUT
AWS_ON
R0
6.8nL118
1950MHz
FL104
5 3 2
4 1
IN
OUT
G1G2G3
897.5MHz
FL105
5 3 2
4 1
IN
OUT
G1G2G3
2.7nC151
1p
L120
1732.5 MHz,2132.5 MHz
FL102
95
8
4 7
2
3
6
1
RX1
ANT
TX
GND1
GND4GND2
RX2
GND3 GND6
43
R100
p51
411L
031
101R
n2.1
801L
DNI
L112
DNI
L115
n2.1
501L
100p
C137
1950 MHz,2140 MHz
FL100
95
74
1
2
8
36
ANT
TX_IN
RX_OUT2
GND1
RX_OUT1
GND2 GND4
GND3 GND5
2.2u
C126
330p
C127
VBAT
4pC105
100p
C135
330p
C125
DNI
L116
33p
C131
1732.5 MHz
FL103
5 3 2
4 1
INOUT
G1G2G3
2.7n
L117
1p
C33
0.5p
L119
DNI
L121
n1
001C
DNI
L107
10pC109
2.2u
C108
330p
C107
VBAT
4.7n
L103
330p
C106
4pC110
n1
921C
10n
L102
1.5n
L113
DNI
C103
33p
C150
p51
421C
DNI
C112
1.8n
L104
DNI
C119
1.8nC130
DNI
C118
33pC117
5.1n
L106
33n
L110
100pC121
DNI
C123
031
201R
33pC115
10pC104
0.5p
C102
DNI
L100
100p
C136
897.5 MHz,942.5 MHz
FL603
95
8
4 7
2
3
6
1
RX1
ANT
TX
GND1
GND4GND2
RX2
GND3 GND6
100p
C113
100p
C114
p51
111L
1nL109
DNI
C156
U101
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VMODE_1CPL_IN
VMODE_0GND
VENCPL_OUT
p51
821C
2.2n
C155
1nC116
100p
C138
100p
C139
1.5n
C101
15n
C122
U801
51
8 7
9 6
10 5
11 4
12 3
13 2
14 1
RFIN_LOW
RFOUT_LOW
VMODEGND3
VBPVCC2
VCC1GND2
VEN_LOWRFOUT_HI
VEN_HIGND1
RFIN_HICPL
DNGP
DNI
C157
33p
C152
DNI
L151
0.5p
L150
33p
C153
2.2u
C154
DNI
L101
PWR_DET_IN
PRX_AWS_M
PRX_AWS_P
PRX_W900_P
TX_AWS
AWS_ON
W2100_ON
TRX_W2100
aws_dpx_tx_in
w900_dpx_tx_in
TX_W2100
TX_W900
PRX_W2100_M
PRX_W2100_P
W900_ON
R0
R0
TRX_W900
PRX_W900_M
TRX_AWS
Band8 : 900
Band 1 : 2100
Band 4 : AWS
6.8nL118
1950MHz
FL104
5 3 2
4 1
IN
OUT
G1G2G3
897.5MHz
FL105
5 3 2
4 1
IN
OUT
G1G2G3
2.7nC151
1p
L120
1732.5 MHz,2132.5 MHz
FL102
95
8
4 7
2
3
6
1
RX1
ANT
TX
GND1
GND4GND2
RX2
GND3 GND6
43
R100
p51
411L
031
101R
n2.1
801L
DNI
L112
DNI
L115
n2.1
501L
100p
C137
1950 MHz,2140 MHz
FL100
95
74
1
2
8
36
ANT
TX_IN
RX_OUT2
GND1
RX_OUT1
GND2 GND4
GND3 GND5
2.2u
C126
330p
C127
VBAT
4pC105
100p
C135
330p
C125
DNI
L116
33p
C131
1732.5 MHz
FL103
5 3 2
4 1
INOUT
G1G2G3
2.7n
L117
1p
C33
0.5p
L119
DNI
L121
n1
001C
DNI
L107
10pC109
2.2u
C108
330p
C107
VBAT
4.7n
L103
330p
C106
4pC110
n1
921C
10n
L102
1.5n
L113
DNI
C103
33p
C150
p51
421C
DNI
C112
1.8n
L104
DNI
C119
1.8nC130
DNI
C118
33pC117
5.1n
L106
33n
L110
100pC121
DNI
C123
031
201R
33pC115
10pC104
0.5p
C102
DNI
L100
100p
C136
897.5 MHz,942.5 MHz
FL603
95
8
4 7
2
3
6
1
RX1
ANT
TX
GND1
GND4GND2
RX2
GND3 GND6
100p
C113
100p
C114
p51
111L
1nL109
DNI
C156
U101
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VMODE_1CPL_IN
VMODE_0GND
VENCPL_OUT
p51
821C
2.2n
C155
1nC116
100p
C138
100p
C139
1.5n
C101
15n
C122
U801
51
8 7
9 6
10 5
11 4
12 3
13 2
14 1
RFIN_LOW
RFOUT_LOW
VMODEGND3
VBPVCC2
VCC1GND2
VEN_LOWRFOUT_HI
VEN_HIGND1
RFIN_HICPL
DNGP
DNI
C157
33p
C152
DNI
L151
0.5p
L150
33p
C153
2.2u
C154
DNI
L101
PWR_DET_IN
PRX_AWS_M
PRX_AWS_P
PRX_W900_P
TX_AWS
AWS_ON
W2100_ON
TRX_W2100
aws_dpx_tx_in
w900_dpx_tx_in
TX_W2100
TX_W900
PRX_W2100_M
PRX_W2100_P
W900_ON
R0
R0
TRX_W900
PRX_W900_M
TRX_AWS
Band8 : 900
Band 1 : 2100
Band 4 : AWS
TP2
TP3
TP6
TP4
TP7
TP5
TP8