LG LG-V909DW - Page 75

4. TROUBLE SHOOTING
- 75 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

ͽ͸Ͷ ͺΟΥΖΣΟΒΝ ΆΤΖ ΀ΟΝΪ

SAW Filter
FIG 20 Schematic of WCDMA I Tx SAW Filter
FIG 21 Schematic of WCDMA VIII Tx SAW Filter
FIG 22 Schematic of WCDMA IV Tx SAW Filter
{wGXXG
{
wGXWG
{
wG`G {wGXY
{wGXZ
{wGX[
6.8nL118
1950MHz
FL104
5 3 2
4 1
IN
OUT
G1G2G3
897.5MHz
FL105
5 3 2
4 1
INOUT
G1G2G3
2.7nC151
33p
C131
1732.5 MHz
FL103
5 3 2
4 1
INOUT
G1G2G3
2.7n
L117
1p
C33
0.5p
L119
33p
C150
DNI
C112
1.8n
L104
1nL109
DNI
C156
15n
C122
DNI
C157
33p
C152
DNI
L151
0.5p
L150
33p
C153
TX_AWS
TX_W2100
TX_W900
6.8nL118
1950MHz
FL104
5 3 2
4 1
IN
OUT
G1G2G3
897.5MHz
FL105
5 3 2
4 1
INOUT
G1G2G3
2.7nC151
33p
C131
1732.5 MHz
FL103
5 3 2
4 1
INOUT
G1G2G3
2.7n
L117
1p
C33
0.5p
L119
33p
C150
DNI
C112
1.8n
L104
1nL109
DNI
C156
15n
C122
DNI
C157
33p
C152
DNI
L151
0.5p
L150
33p
C153
TX_AWS
TX_W2100
TX_W900
6.8nL118
1950MHz
FL104
5 3 2
4 1
IN
OUT
G1G2G3
897.5MHz
FL105
5 3 2
4 1
INOUT
G1G2G3
2.7nC151
33p
C131
1732.5 MHz
FL103
5 3 2
4 1
INOUT
G1G2G3
2.7n
L117
1p
C33
0.5p
L119
33p
C150
DNI
C112
1.8n
L104
1nL109
DNI
C156
15n
C122
DNI
C157
33p
C152
DNI
L151
0.5p
L150
33p
C153
TX_AWS
TX_W2100
TX_W900
TP10
TP13
TP11
TP14
TP9
TP12