4. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
4.9 GPS/WIFI/BT Trouble shooting
4.9.1 A-GPS Block
L1127
4.7n
3.3n
L1131
U1103
3
2
5
4
1
NI
_F
R
FIL_OUT
VDD
S_D
GND
C1188
0.1u
1575.42 MHz
FL1106
5
2
4
1
3
G3
IN
OUT
G1 G2
C1185
33p
4.7n
C1186
L1128
DNI
ZD1100
R1123
1K
C1193
6.8p
L1129
3.3n
DNI
C1194
VREG_RF_2.7V
ANT1103
DNI
C1192
R1120
12
18p
C1187
ANT1104
C1184
100p
GPS_IN
GPS_MODE
Near LNA
LNA for the GPS
TP1
TP2
Schematic of the A-GPS block
TP2
TP1