LG -P500 Service Manual page 86

TP2
FL2
6
ANT RX
C1079
DNI
18p L1021
TX
C1081
5.6n
2
GND1 GND6
4
GND2 GND5
5
GND3 GND4
897.5 MHz,942.5 MHz
Band VIII
WCDMA_900_RTX
TP2
FL1008
C1090
6
ANT RX
12p
TX
L1031
L1035
DNI
2.7n
2
GND1 GND6
4
GND2 GND5
5
GND3 GND4
WCDMA_2100_RTX
Band I
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
GND
3 4
G3 G4
1
ANT COMMON
2
SW1001
TP1
C1005 33p
L11
DNI
1
DCS_PCS_IN
2
GND1
3
GSM_IN
4
VAPC
5
VBATT
6
BS2
U1002
7
BS1
8
_TXEN
29
PGND1
30
PGND2
31
PGND3
32
PGND4
33
PGND5
34
PGND6
C12
1
100p
L1130
3
TP3
27n
8
9 C1078
7
6.8p
L1020
L1022
DNI
10n
TP3
C1089
1
3 3.3p
L1033
L1029
9 DNI
5.6n
8
7
C13
100p
L1120
DNI
L1004
18n
WCDMA_2100_RTX
WCDMA_900_RTX
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
U1003
14 1
OUT_BAND_VIII IN_BAND_VIII
13 2
GND3 VMODE_0
12 3
VCC2_2 VMODE_1
11 4
GND2 VCC2_1
10 5
OUT_BAND_I VEN_BAND_VIII
9 6
GND1 VEN_BAND_I
R1022 R1023
8 7
CPL_OUT IN_BAND_I
33 18 15
16
PGND2 PGND1
PDET_IN
C1094
100p
- 87 -
4. TROUBLE SHOOTING
Near to 12 Pin Near to 4 Pin Near to 12 Pin
+VPWR_RF
C1077
C1075 C1076
10u
0.001uF 330p
W900
FL1005
C1083 L1025 C1153
4 1
OUT IN
1n
4.7n
PA_R0 12p
TP4
G3 G2 G1
PA_R1
L1026
5 3 2
22n
PA_ON1 897.5 MHz
PA_ON0
FL1006
3
C1088
L1027 3.3n
C1929 C1096 C1087
C1095 G3
4 1
OUT IN
100p 100p G2 G1 15p
100p 33p
TP4
5 2
L1030
DNI
1950MHz
LGE Internal Use Only
C1084
5.6p
WCDMA_900_TX_OUT
C1086
8.2n
W2100
WCDMA_2100_TX_OUT
C1092
1.5n