LG P705 - Checking Rf Rx Block

4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.6.4 Checking RF Rx Block
TP2
TP1
5001R
031
4001R
031
SW1001
43
2
1
ANT
COMMON
G3 G4
1.8n
C1094
R1003
47
C1033
10u
DNI
L1043
2.7n
C1106
DNI
L1042
C1009 100p
33
R1006
1n
C1049
U1001
GND1
2
VBATT
5
01DNG
72
GND2
19
9DNG
62
GND3
20
8DNG
52
GND4
21
ANT
18
PGND3
31
PGND2
30
PGND1
29
GND5
22
6DNG
32
7DNG
42
PGND6
34
PGND5
33
PGND4
32
7DNGP
53
8DNGP
63
9DNGP
73
PGND10
38
PGND11
39
PGND12
40
PGND13
41
PGND14
42
PGND15
43
PGND16
44
HB_IN
1
11DNG
82
LB_IN
3
VAPC
4
BS2
6
BS1
7
TXEN_
8
EDOM
9
WCDMA3
17
PMET
01
4XR
11
3XR
21
2XR
31
1XR
41
WCDMA1
15
WCDMA2
16
R1000
2.2K
L1001
DNI
VBAT
FL1001
3
2
1
4
IN_1842_5
IN_1960
GND1
GND2
100n
L1002
8001R
19
47p
C1034
C1051
1n
C1052
1n
C1050
1n
9001R
19
C1024
39p
FL1000
3
2
1
4
IN_881_5
IN_942_5
GND1
GND2
DNI
L1000
C1013
100p
3.9n
C1018
L1005
DNI
C1056 2.4n
DNI
L1009
C1058
18p
4.7n
L1012
SW1000
G1
ANTG2
ANT_SEL[2]
ANT_SEL[1]
GSM_PA_RAMP
WCDMA_LB_RTX
ANT_SEL[3]
GSM_LB_TX
GSM_HB_TX
ANT_SEL[0]
WCDMA_HB_RTX
GSM850(824-849MHz)
GSM900(880-915MHz)
FEM
2mm
7.4dB
7dB
PCS(1850-1910 MHz)
DCS(1710-1785 MHz)
0603
0603
0603
TP1