LG -E415g Service Manual page 54

ANT1003 ANT1001 ANT1005
1
1
1
HJ-ICT-06Y HJ-ICT-06Y
HJ-ICT-06Y
C1009
C1008
100p
100p
C1010
100p
DCS_PCS_TX
DCS(1710-1785 MHz)
PCS(1850-1910 MHz)
GSM850_GSM900_TX
GSM850(824-849MHz)
GSM900(880-915MHz)
LGE Internal Use Only
ANT1002
1
2
HJ-ICT-06Y
C1001
C1007
1
100p
C1003
C1127
DNI
0.5p
1
GND1
2
GND2
3
GND3
4
GND4
5
GND5
6
GND6
7
GND7
8
GND8
29
PGND1
30
PGND2
31
PGND3
32
PGND4
33
PGND5
34
PGND6
TP2
R1011
1 2
47
7dB
1 2
R1006
75
11dB
1 2
TP3
Schematic of GSM/DCS/PCS Tx Block
- 54 -
4. TROUBLE SHOOTING
SW1000
100p
1 2
ANT COMMON
G3 G4
C1004
DNI
3 4
TP1
44
PGND16
43
PGND15
42
PGND14
41
PGND13
22
GND10
21
TRX3
U1001 20
TRX2
19
TRX1
18
VRAMP
17
TXEN
16
MODE
15
GND9
40
PGND12
39
PGND11
38
PGND10
VBAT
2mm
C1118 C1039 C1038
2 2
1n 100p
10u
1 1
C1125 C1124
DNI DNI
Copyright © 2013 LG Electronics. Inc. All right reserved.
C1002 6.8p
1
L1001
C1005
15n
DNI
2
W850_W900_RTX
W1900_W2100_RTX
C1022 1.2n
C1046
100p
ANT_SEL1
ANT_SEL2
Only for training and service purposes
L1004
4.7n
1
L1009
8.2n
2