Gps/Wifi/Bt Trouble Shooting - LG -E400 Service Manual

4.9 GPS/WIFI/BT Trouble shooting

4.9.1 A-GPS Block
ANT103
1575.42 MHz
L125
L126
C232
DNI
100n
1.5n
GPS_MODE
LGE Internal Use Only
TP2
TP1
FL103
3
G3
1 4
IN OUT
G1 G2
2 5
C190
0.5p
R127
12
C204
6.8p
TP2
LNA for the GPS
C191 L128
DNI
4.7n
TP1
GND VDD
3 5
S_D FIL_OUT
2 4
U104
C202
0.5p
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4. TROUBLE SHOOTING
Near To LNA
R125
12
C192
C193
18p 0.1u
L130
100p
C203
DNI
Only for training and service purposes
VREG_RF_2.7V
GPS_IN