Circuit Diagram - LG -P500 Service Manual

7. CIRCUIT DIAGRAM

16 15 14
ANT1002
3
L
ANT1003
G3
1
ANT
SW1001
R1004 C1003
1.5n
15p
C1007 C1009
R1005
56p 0.0082uH
1p
K
R1006
GSM_PA_RAMP
2.2K
C1024
39p
R6 1
DCS_PCS_TX
47 2
DCS(1710-1785 MHz)
3
7dB
J 4
PCS(1850-1910 MHz)
5
6
7
8
R7
GSM_TX
75
GSM850(824-849MHz)
29
11dB
GSM900(880-915MHz)
30
31
32
2mm 33
34
+VPWR_RF
I
0603
0603
C1045 1n
C1043 C1044
C1047 1n
10u 47p
C1048 1n
C1051 1n
ANT_SEL3
ANT_SEL2
ANT_SEL0
ANT_SEL1
ANTENNA SWITCH MODULE LOGIC(SKY77544)
H
ANT_SEL0 ANT_SEL1 ANT_SEL2 ANT_SEL3
GSM850/GSM900 TX LOW HIGH LOW LOW
DCS1800/PCS1900 TX HIGH HIGH LOW LOW
PCS1900 RX LOW LOW LOW (X) HIGH
DCS1800 RX LOW HIGH LOW (X) HIGH
GSM900 RX
HIGH HIGH LOW (X) HIGH
GSM850 RX HIGH LOW LOW (X) HIGH
G
W2100 HIGH LOW LOW LOW
W900(W850) LOW LOW HIGH LOW
W1700 HIGH LOW HIGH LOW
WCDMA RX 2100 LNA Circuit
VDD_RX
F
L1017
2n
2 3
FL1003
C1071 33p C1072 33p 1 G1 O1
RX_WCDMA_2100_LNA_OUT
IN
G2 O2
R1029 5 4
DNI
C1073
DNI
R1021
2140MHz
RX_WCDMA_1900_LNA_OUT
DNI
E
DIVERSITY_IN
D
L1028
ANT1005 ANT1006 FL1007
C1091
1 3
OUT 5.6n
4 IN 6
47p OUT_NON
G
L1034 L1032
C1093
C1097
6.8n
DNI DNI
L12 DNI
100p
C
GND VDD
R1026
3
GPS_MODE S_D FIL_OUT
1K 2
U1004
C1107
6.8p
B
FL1011
3
C1118 33p G3 C1119 10p
DIVERSITY_IN 1 4
IN OUT
G1 G2
2 5
L1043
C1127
2140 MHz
L1044 DNI 2n
3.6n
C1129
100p
A AWS DIVERSITY
16 15 14
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
13 12 11 10
GND
4
G4
COMMON
2
C1005 33p
L1002
DNI
L11 L1004
DNI 18n
FL1001
C1014
4 7
IN_881_5 OUT_881_5_1
33p
6
OUT_881_5_2
9
C1021 OUT_942_5_1
1 8
IN_942_5 OUT_942_5_2
33p
WCDMA_2100_RTX 2 5
GND1 GND3
3 10
L1006
GND2 GND4
881.5MHz,942.5MHz
WCDMA_900_RTX DNI
44
PGND16
43
PGND15
42
PGND14
41
DCS_PCS_IN PGND13
GND1
GSM_IN
VAPC
22
VBATT GND5
21
BS2 GND4
U1002 20
BS1 GND3
19
L1009
_TXEN GND2
18 27n
ANT
17
WCDMA3
FL1002
16
PGND1 WCDMA2 C1039
33p 4
15
PGND2 WCDMA1 IN_1842_5 OUT_1842_5_1
PGND3 OUT_1842_5_2
OUT_1960_1
PGND4 C1041
33p 1
IN_1960 OUT_1960_2
PGND5
40
PGND6 PGND12
2
39
PGND11 GND1 GND3
L1012 3
38
PGND10 GND2 GND4
DNI 1842.5MHz,1960MHz
GSM Quad
WCDMA
L1018
C1069 3.9p
WB2100_MIX_INM
1.8n
C1079
DNI
18p
C1070 W2100 RX(2110 - 2170 MHz)
C1081
DNI
L1019
C1080 3.9p
WB2100_MIX_INP
1.8n
WCDMA_900_RTX
LNA for the GPS C1090
12p
L1035
2.7n
WCDMA_2100_RTX
Near To LNA
L1036
R1025
VREG_RF_2.7V
3.3n
12
C1098 C1099
18p 0.1u
L1039
100p
5
GPS_IN
4
C1105
C1106
DNI
8.2n
R19
DIVERSITY_LNA_EN
0
C1120 10p C1121 33p
1 6
RFIN RFOUT
R1030 27K AWS_RXDIV_LNA_OUT
2 5
EN RREF
U1006
L1045
3 4
DNI
GS VCC
7
C1130
10n
VREG_TCXO_2.85V
13 12 11 10
9 8 7 6
U1001
C1004
26
RX_GSM_850_P TX_ON
RF_ON
2
2.2p TCXO_RTR_19.2MHZ
TCXO
20
RTR6285_SSBI SBDT
L1003 L1005
GSM(869-894 MHz)
82n 18n
C1011 100p 55
GSM_TX LB_RF_OUT1
C1012 100p 57
WCDMA_900_TX_OUT
LB_RF_OUT2
C1016
RX_GSM_850_M C1017 33p 56
DCS_PCS_TX
2.2p HB_RF_OUT1
58
HB_RF_OUT2
C1022 33p
C1023 59
WCDMA_2100_TX_OUT HB_RF_OUT3
RX_GSM_900_P
4.7p
30
RX_WCDMA_900_P WPRXLBP
GSM(925-960 MHz)
31
RX_WCDMA_900_M WPRXLBN
L1008 L1007
32
RX_WCDMA_1700_P
82n 18n WPRXHBP
33
RX_WCDMA_1700_M
WPRXHBN
C1025
41
RX_GSM_900_M WDRXLB
4.7p
40
WDRXHB1
39
AWS_RXDIV_LNA_OUT WDRXHB2
50
RX_GSM_850_P
C1036 GCELL_INP
51
RX_GSM_850_M
RX_DCS_P GCELL_INN
5.6n
48
DCS(1805-1880 MHz) RX_GSM_900_P EGSM_INP
L1011 L1010 49
RX_GSM_900_M EGSM_INN
0.5p 22n
46
RX_DCS_P
7 DCS_INP
C1040 47
RX_DCS_M
DCS_INN
6
RX_DCS_M
5.6n
9 44
RX_PCS_P
GPCS_INP
8
45
RX_PCS_M GPCS_INN
C1042
5
42
GPS_IN
10 RX_PCS_P C1046 33p
52
6.8n PDET_IN PDET_IN
R1018 12K 68
TX_RBIAS
L1014 PCS(1930-1990 MHz)
L1013 1%
0603
DNI 38
12n
RX_WCDMA_1900_SE WPRXSE1
36
RX_WCDMA_2100 WPRXSE2
C1052
RX_PCS_M
6.8n
Near To RTR
L1015
GPS_IN
100p
L1016
5.6n
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_1900_LNA_OUT
FL2
C12
6 1
ANT RX
100p
L1130
3
L1021
TX 27n
5.6n
2 8
GND1 GND6
4 9 C1078
GND2 GND5
5 7
GND3 GND4
6.8p
L1020
L1022
897.5 MHz,942.5 MHz DNI
10n
Band VIII
PDET_IN
FL1008
C1089
6 1
ANT RX
3 3.3p
TX
L1031 L1033
L1029
DNI 2 9 DNI
5.6n
GND1 GND6
4 8
GND2 GND5
5 7
GND3 GND4
C13
100p
Band I
L1120
DNI
VREG_TCXO_2.85V
0603
C20 R14
0
10n
6
RFINM PGND
C27
7 BGA735L16
RFINH RFOUTM
U2
10p
8
L9 RFGNDM1 RFOUTH
10n
9
RFGNDM2 RFOUTL
C23
10p
R18
27K
L2
C24 8.2n
22p 3.3p
C26
9 8 7 6
- 153 -
5 4 3 2
64
TX_IP TX_I_P
63
TX_IN
66 C1010
TX_QP
0603
65
TX_QN 68p
0603
5 C1013 10n TX_I_M
VTUNE1
24 C1015 10n
TX_Q_P
VTUNE2
9 C1018 1n
VTUNE_GPS
C1019
11 0603
PRX_QP RX0_Q_P 68p
12
PRX_QN RX0_Q_M
14
PRX_IP RX0_I_P TX_Q_M
13
RX0_I_M
PRX_IN
15
DRX_QP RX1_Q_P
16
GND
DRX_QN RX1_Q_M
17
DRX_IP RX1_I_P
18
DRX_IN RX1_I_M
0603
19
NC
EUSY0344001
67
DAC_IREF DAC_REF
3
VDDA1_1
R1010 2.2
4
VDDA1_2
6
VDDA1_3
R1012 10
10
VDDA1_4 0603
22
VDDA1_5
53
VDDA1_6
VDDA1 : Pin 3,4,6,10,22,53 = +2.7V VDC
1
VDDA2_1
7
VDDA2_2 VDDA2 : Pin 1,7,8,21,25,27,37,43,54,60,61,62 = +2.1V VDC
8
VDDA2_3
R1016
21 10
VDDA2_4
25
VDDA2_5
27 10 R1017
VDDA2_6
0603
37
VDDA2_7
43
VDDA2_8
54
VDDA2_9
60
VDDA2_10
61
VDDA2_11
62
VDDA2_12
C1163
10u
VREG_MSMP_2.6V
C1064 C1065 C1066
22p 100p 0.1u
Near to 12 Pin Near to 4 Pin Near to 12 Pin
+VPWR_RF
C1075 C1076 C1077
10u
0.001uF 330p
FL1005
U1003
C1083 L1025 C1153
14 1 4 1
OUT_BAND_VIII IN_BAND_VIII 1n OUT IN
13 2
GND3 VMODE_0 PA_R0 12p
12 3 G3 G2 G1
VCC2_2 VMODE_1 PA_R1
11 4 L1026
5 3 2
GND2 VCC2_1
22n
10 5
OUT_BAND_I VEN_BAND_VIII PA_ON1 897.5 MHz
9 6
GND1 VEN_BAND_I
R1022 R1023
8 7
CPL_OUT IN_BAND_I PA_ON0
33 18 16 15
PGND2 PGND1
FL1006
3
C1929 C1096 C1087 L1027 3.3n
C1094 C1095 G3
4 1
OUT IN
100p 100p G2 G1
100p 100p 33p
5 2
L1030
DNI
1950MHz
+VPWR_RF
Near to 10 Pin Near to 1 Pin
C1102 C1103 C1104
2.2u 33p
1n
PA_R1
PA_R0
PA_ON2
C1113 C1114 C1115
100p 100p 100p
R9
0603
DNI
LNA_GAIN_CONTROL
17
16
C28
15 R24 C10
RX_WCDMA_2100
1
12p
3.3n
14
R12
L6
RX_WCDMA_1900_SE
2.7n DNI
C36
1.5p RX_WCDMA_900_P
5 4
L7
C14 L4000 L8
G2 O2
IN DNI
3.3n 22n
100p 1 G1 O1
FL1
2 3
C1148 C1928 C37
DNI DNI
RX_WCDMA_900_M
942.5MHz 1.5p
INTER_RX_SW_SEL_1
INTER_RX_SW_SEL_2
5 4 3 2
1
L
K
J
VREG_RF_2.7V
FB3
1 +2.7V
C1160
4.7u
0603
R1015 0 +2.1V
VDD_RX
FB2 I
VREG_SMPS_2.1V
1
VSNS_RF_SMPS
C1162
4.7u
VREG_SMPS_2.1V|VSNS_RF_SMPS
H
G
F
W900
C1084
4.7n
5.6p WCDMA_900_TX_OUT
C1086
E
8.2n
W2100
C1088
15p
WCDMA_2100_TX_OUT
C1092
1.5n
D
C
B
A
1
LGE Internal Use Only