LG -P350 Service Manual page 83

ANT1001
ANT1004 ANT1000
L1040
3.9p
C1004
L1042
L1041
15n
DNI
DNI
R1002
GSM_PA_RAMP
2.2K
DCS_PCS_TX
DCS(1710-1785 MHz)
PCS(1850-1910 MHz)
R1006
GSM_TX
GSM850(824-849MHz)
11dB
GSM900(880-915MHz)
2mm
VBATT
C1106
DNI
FL1004
RX1
L1023 33p
6
ANT RX2
WCDMA_900_RTX
TP2
2
GND1
4
GND2 GND4
C1088 33n
5
GND3 GND6
SDMY0002801
Band 8
BAND8(2520) : B7953 (SDMY0002801)
TP2
FL1007
33p
L1035
6
ANT
WCDMA_2100_RTX
L1037
DNI
2
DNI GND1
L1036
4
GND2
5
GND3
SDMY0001901
Band 1
BAND1(2520):SAYP1G95AA0B00
1950MHz, 2140MHz
BAND2(2520) : ACMD-7407
LGE Internal Use Only
R1000
100p
R1001
DNI
0603
C1018
39p
R1003
47
7dB
75
0603
1n
0603
C1043
C1042 1n
C1045
47p
1n
C1046
1n
C1049
ANT_SEL3
ANT_SEL2
ANT_SEL0
ANT_SEL1
TP3
W900 TX(880 - 915 MHz)
C1077
L1021
2.2p
1
8
C1083 1.8p
RX_WCDMA_900_M
3
TX
C1089
7 L1024
W900 RX(925 - 960 MHz)
DNI
9 10n
C1095 1.8p
RX_WCDMA_900_P
897.5 MHz,942.5 MHz
W2100 TX(1920 - 1980 MHz)
C1097
TP3
33p
L1033
DNI
1
RX
3
TX
7
GND4
8
GND5
9
GND6 C1105 2.2n
RX_WCDMA_2100
L1039 C1104
3p DNI
BAND 1/2
SW1000
TP1
L1000
100n
1
DCS_PCS_IN
2
GND1
3
GSM_IN
4
VAPC
5
VBATT
6
BS2
U1001
7
BS1
8
_TXEN
29
PGND1
30
PGND2
31
PGND3
32
PGND4
33
PGND5
34
PGND6
U1002
14 1
RFOUT_LOW RFIN_LOW
3.9n 13 2
GND3 VMODE
12 3
VCC2 VBP
11 4
L1022
GND2 VCC1
10 5
DNI
RFOUT_HI VEN_LOW
9 6
GND1 VEN_HI
R1016
8 7
CPL RFIN_HI
62
PDET_IN
L1032
0.75p
- 83 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
C1001
2.7n
L1001
0.5p
44
PGND16
43
PGND15
42
PGND14
41
PGND13
22
GND5
21
GND4
20
GND3
19
GND2
18
ANT
17
WCDMA3
16
WCDMA2
15
WCDMA1
40
PGND12
39
PGND11
38
PGND10
Near to 4 Pin Near to 12 Pin
Near to 12 Pin
1mm
VBATT
0603
C1071
C1069 C1070
10u
1n 330p
FL1003
C1079
L1018
C1078
4 1
OUT IN
3.3n
1n
PA_R0
33p
G3 G2 G1
PA_R1
C1082
5 3 2
3p
PA_ON1 897.5 MHz
PA_ON0
FL1005
L1025
3
C1091
C1090
G3
4 1
OUT IN
1.2n 1n
G2 G1
33p
0603
5 2
L1026 C1094
1.2p
DNI
1950MHz
Only for training and service purposes
WCDMA_2100_RTX
WCDMA_900_RTX
W900
C1080
WCDMA_900_TX_OUT
6.8n
TP4
W2100
C1092
WCDMA_2100_TX_OUT
4.7n
TP4