LG LG-P350 - Page 94

4. TROUBLE SHOOTING
- 94 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

ͽ͸ͶͺΟΥΖΣΟΒΝΆΤΖ΀ΟΝΪ

G
Schematic of GSM/DCS/PCS Tx Block
TP1
TP3
TP
2
R1001
DNI
SW1000
4 2
1 3
1G
A
C
2G
C1018
39p
19
9001R
C1045
1n
C1049
1n
3.9p
L1040
C1004
15n
R1000
100p
ANT1000
C1046
1n
L1042
DNI
C1042
47p
19
800
1
R
L1000
100n
ANT1001
C1001
2.7n
C1106
DNI
75
R1006
VBATT
0.5p
L1001
031
5001R
47
R1003
031
4001R
R1002
2.2K
U1001
31
30
29
44
43
42
41
40
39
38
73 63
53
16
15
41 31 21
11
01
34
33
32
17
9
18
8 19
7 20
6 21
5 22
4
3
2
3
42
2
5
2
62
72 8
2
1
DCS_PCS_IN
11DNG
01D
N
G
9
DN
G
8DNG
GND1
7DNG
GSM_IN
6
D
NG
VAPC
GND5VBATT
GND4BS2
GND3BS1
GND2_TXEN
ANT
EDOM
WCDMA3
PGND4
PGND5
PGND6
P
ME
T
4XR 3XR
2X
R
1X
R
WCDMA1
WCDMA2
7D
N
GP
8DN
GP
9DNGP
PGND10
PGND11
PGND12
PGND13
PGND14
PGND15
PGND16
PGND1
PGND2
PGND3
L1041
DNI
ANT1004
C1043
1n
GSM_PA_RAMP
ANT_SEL3
ANT_SEL0
ANT_SEL2
ANT_SEL1
WCDMA_900_RTX
WCDMA_2100_RTX
GSM_TX
DCS_PCS_TX
8061
0603
0603
0603
DCS(1710-1785 MHz)
PCS(1850-1910 MHz)
GSM900(880-915MHz)
GSM850(824-849MHz)
7dB
11dB
2mm
TP1
TP3
TP2