Gps/Wifi/Bt Trouble Shooting - LG E475F Service Manual

3.9 GPS/WIFI/BT Trouble shooting

3.9.1 A-GPS Block
LNA for the GPS
FL1005
ANT1004
1
IN OUT
G1 G2 G3
2 3 5
L1027
L1028
L1026
3p
DNI
100n
LGE Internal Use Only
TP1
TP2
U1004
1
NC1
4 2
RF_IN
RF_OUT
3
NC2
C1100
C1099
10n
DNI
TP1
7
PGND
6
VDD
6.8p
C1129 18p
5
L1103
4
VSD
R1023
12
TP2
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3. TROUBLE SHOOTING
Near To LNA
L1030
R1021
12
1.5n
C1105
C1106
18p 0.1u
L1032
6.8n
C1113
C1114
DNI
DNI
GPS_MODE
C1115
6.8p
Only for training and service purposes
VREG_RF_2.7V_RTR
GPS_IN