Circuit Diagram - LG L602i Service Manual

7. CIRCUIT DIAGRAM

1 2 3 4
ANT100 ANT101
C1001
U1000
56p
3 4
OUT2 VCONT
2 5
A GND IN
1 6
OUT1 VDD
R1001
UPG2010TB-E3 10K
C1007 C1005
1.2nH 56p
RF_OUT
L1010 C1009
1p
NA
B
SC1000
L1015
VREG_RFRX_0_2.85V
1 15nH
Shield Can
C1018 C1019
33p 0.1u
WCDMA_800
WCDMA_2100
C
L1023
C1030
NA
27p
C1041
10nH
D
GSM/DCS/PCS
E
WCDMA
C1060
FL1002 100p
SAYZY1G95EA0B00
C1065 C1066
2 5
WCDMA_2100 ANT RX RX_WCDMA_2100
100p 3.3p
7
TX
L1030 1 3
L1029
F GND1 GND6
7.5nH 4 6 L1032
6.8nH
GND2 GND5
8 9 NA
GND3 GND4
C1077
1.5nH
FL1004
EFSD835MF1S2
C1081
C1080
6 1
WCDMA_800
C ANT RX RX_WCDMA_800
100p 47p
3
TX
2 9
GND1 GND6
4 8 L1036
L1038 GND2 GND5
L1037 5 7 18nH
18nH 18nH GND3 GND4
FB1002
D VREG_RFRX_0_2.85V
C1096 R1041
22
0.1u
C1099 R1045
5.62K
100p
U1009
RFL6202
C1101 L1044
82p 4.7nH
1 12
RX_WCDMA_800 UMTS_L_IN GND3
2 11
UMTS_L_BIAS UMTS_H_OUT
C1103 3 10
E UMTS_H_BIAS SBDT
0.5p L1046 4 9
UMTS_H_IN VDDM
47nH
C1109
100p
C1115 L1051
12p 2.2nH
RX_WCDMA_2100
C1118
0.5p L1052
8.2nH
F
C1121
100p C1122
100p
1 2 4
LG(42)-A-5505-10:01
5
MODE
L1000
15nH GSM 900 Tx
GSM 1800 / GSM 1900 Tx
C1002
GSM 900 Rx
12p
AC_T_N
GSM 1800 Rx
SW1000
C1003 56p GSM 1900 Rx
G2 FL1000
ANT RF
G1
LMSP54MA-543 WCDMA 800
KMS-507 19
GSM900_RX1 WCDMA 2100
14 20
C1004
VC1 GSM900_RX2
1000p 15
VC2
16 21
VC3 GSM1800_RX1
22
GSM1800_RX2
13
VREG_RFRX_0_2.85V
VDD
23
GSM1900_RX1
1 24
GND1 GSM1900_RX2
2
GND2
4 3
GND3 GSM1800_1900TX
5 6
GND4 GSM900TX
R1004 0 8 7
ANT_SEL0
GND5 UMTS2
R1005 0 10 9
ANT_SEL1
GND6 UMTS1
R1006 0 12
ANT_SEL2
GND7
17 25
GND8 PIN_DIREC1
18 26
GND9 PIN_DIREC2
L1018
8.2nH
L1019
47nH
+VPWR
C1025
C1027 C1028
0.01u 0.01u 22u C1029
L1021
1000p
C1026 NA L1022
3.9nH 47nH
R1015
L1024
15K
8.2nH
925-960 MHz
C1039
C1038 C1040
0.01u
68p 0.01u
NA
L1025
FB1000
VREG_RFTX_2.85V
R1016
24
15 3
DCS_PCS_OUT DCS_PCS_IN
R1017
15
11 4
EGSM_OUT EGSM_IN
U1003
19 18
GSM_PA_EN
RSVD_GND ENABLE
C1047 C1048
SMPY0014001 R1021 R1022
21 1 R1024 10u
GSM_PA_BAND R1023 150 220
P_GND BS
200 270
R1025
51
L1027
1.8nH C1061
+VPWR
U1004
5.6p
C1067 C1068 C1069
L1031
0.01u
C1070 C1063 0.01u 10u 10nH
0.75p 0.75p
U1005
AWT6277R
11
GND5
10 1
VCC2 VCC1 R1031
9 2
GND4 RFIN
8 3 R1032
RFOUT GND1 0 0
7 4
GND3 VMODE
6 5
GND2 VREF
C1073
C1076 0.01u
NA
AWT6307R U1007
8 1
GND1 VEN C1078
47p
L1033 R1034
7 2
RFOUT VMODE PA_R0
6.8p 0
6 3
GND2 RFIN
C1079 5 L1034
C1082 VCC 22nH
NA 9 4
BGND VBATT
6.8nH
+VPWR
C1086 C1087
C1088 68p 10u
100p R1037 1u
R1038 C1084
C1089 18
100p R1039 18 U1008
LMV228TLX-NOPB
A1 A2
18 RFIN_EN VDD VREG_RFTX_2.85V
B1 B2
GND OUT HDET1
C1093
C1092 C1095
0.1u
100p
R1040 1500p
R1042 C1097 HDET_EN
22 100p 10K
R1044
11.3K
L1039 C1098
68nH FL1005 6p
L1040
B7838
10nH
C1100 L1042
2 3
L1043
82p L1045
1 G1 O1 L1041 8.2nH
IN 8.2nH
10nH NA 1
G2 O2
GND1
5 4 2
C1102
C1106 C1104 UMTS_L_INP
0.1u 3
NA GND2
4
6p VDDA1
5
GND3
6
C1107 UMTS_H_INP
7
FL1006 GND4
L1048 8
B7827
L1049 C1108 0.75p 3.3nH UMTS_H_INM
2 3 9
4.7nH 12p L1050 GND5
1 G1 O1 L1047 10
IN 3.3nH DNC1
7.5nH
G2 O2
5 4
C1110
C1113
0.1u
C1116
NA 0.75p
SBDT
SBST
SBCK
R1048
VREG_MSMP_2.7V
100
C1123
0.1u
5 6 7 8
ANT_SEL0 ANT_SEL1 ANT_SEL2 TX_VCO_EN_0_N TX_VCO_EN_1_N
HIGH HIGH LOW GSM 900 LOW HIGH
HIGH LOW LOW HIGH LOW
DCS1800/PCS1900
LOW LOW HIGH
HIGH HIGH
OFF
L1003
LOW HIGH HIGH 1.2nH
LOW HIGH LOW
GSM_PA_BAND MODE
HIGH LOW HIGH
LOW GSM
L1004
HIGH HIGH HIGH DCS / PCS
HIGH 5.6nH
1930-1990 MHz
C1008
1000p
L1007
5.6nH
L1009
1.2nH
VREG_RFTX_2.85V
L1012
1.2nH
C1012
R1007
33p
1.8K
L1014
12nH
C1020
C1022 10n CP_HOLD2
29
CP2_OUT
1000p CP2
L1017 30
VDDA9
12nH 31
UHF_LO_BUFF
L1020 RX_VCO_IN
R1010 32
1.2nH
R_BIAS
11.3K (1%) 33
GSM1800_INN
34
1805-1880 MHz GSM1800_INP
35
VDDA10
36
GSM900_INP
37
GSM900_INN
R1011 38
82 VDDA11
39
TX_MOD_CP
40
VDDA12
41
TX_VCO_FB
R1014 42
C1033 C1034
47
120p 1000p C1035
C1037 82p
22n (1%)
(PPS)
U1002
MQW6V0C869M
5 9
OUT1 VC
1
OUT2 R1018 100
10
GSM_TX_VCO_1_EN_N
SW1
3 8 R1019 100
GSM_TX_VCO_0_EN_N
VB SW2
R1020
C1049 C1050 C1051
VREG_MSMP_2.7V
33p 15p 15p
0.1u 100 C1052 C1053
0.01u 1000p
VREG_RFTX_2.85V
C1055 C1056 C1057
33p 100p
10u RF_ON_TX_ON
FL1001 X1000
3 SAFEB1G95KA0F00 19.2MHz
C1062
4 G3 1
OUT IN W2100_TX_OUT TCXO_PM OUT GND
3 2
G2 G1
100p R1027
5 2
RTR6250_TCXO VCC VCONT
4 1
C1064
100
L1028 1000p
4.7nH RFR6202_TCXO C1071
0.01u
Q1000
KRX102E
VREG_TCXO_2.85V
PA_ON0 C1074 C1075
0.1u 1000p
VREG_RFTX_2.85V
3 2 EFCH836MTDB1
FL1003
G2 G1
IN W800_TX_OUT
1
O1 G3
4 5
L1035
39nH
Q1002
KRX102E
PA_ON1 UHF_BAND_SEL
VREG_RFTX_2.85V FB1001
VREG_RFRX_0_2.85V
C1094 C1090
4.7u
0.1u
RX_QP
R1043
5.62K
RX_QM
RX_IP
R1046
5.62K
30
RX_IM
RX_IM
29
VDDA7 C1105
28
TCXO RFR6202_TCXO
27
1000p
U1010 VDDA6
26
RFR6202 SBDT SBDT
25
SBCK SBCK
24 Section
SBST SBST
23
VDDM VREG_MSMP_2.7V
22
R1047
GND8
21 51
DNC3 C1111 C1112 Designer
100p 0.1u
C1114
0.1u
Checked
C1117
100p
UHF_LO_BUFF
C1120 C1119 Approved
27p
27p R1049
0
R1050
C1124
100
12p
9
- 141 -
14 15 16
DAC_REF
TX_IM
2.2uH
L1001 C1000 47p
TX_IP
2.2uH
L1005
TX_QM
2.2uH
L1006 C1006 47p
TX_QP
2.2uH
L1008
R1003
VREG_RFTX_2.85V
10
C1010
L1011
0.1u
47nH
C1011
L1013
33p
VREG_SYNTH_2.85V
47nH
C1013 C1014
33p 0.1u
VREG_RFTX_2.85V
L1016
C1021
47nH
RX_IM
RX_IN 0.1u R1009
14
RX_IP 10
RX_IP
13
RX_QM
RX_QN
12
RX_QP
RX_QP
11
VDDA4
10
VCO_TUNE C1024 C1023
9
2.2u
RTR6250D VTUNE_REF 47p
8
U1001 VDDA3
7
TCXO RTR6250_TCXO
6
VDDA2 R1013
5 (1%)
6.2K
VDDA1
4 R1012 3.3K
(1%)
FAQ1
3
CP1
2 C1031
CP_HOLD1 C1032
1 3.9n
390p
C1036
0.01u
L1026
47nH
VREG_RFTX_2.85V
C1042
W800_TX_OUT C1045 C1046
4p
100p 0.1u
W2100_TX_OUT
(PPS)
C1044
6p
C1054
22p
R1026
1K
TX_AGC_ADJ
C1058 C1059
100p
4700p
R1028
80.6K
TRK_LO_ADJ VREG_RFTX_2.85V PA_THERM
R1029 R1030 C1072
68K
470K 0.068u
Q1001
KRX102U
UHF_VCO_0_EN
VREG_SYNTH_2.85V
C1083
C1085
4.7u
0.1u
R1035
X1001
1K
MQW541A1G44
1 7
OUT VCC
3 5
C1091 SWITCH CON CP2_OUT
0.01u
8 2
GND4 GND1
6 4
GND3 GND2
Date Sign & Name Sheet/
Sheets
L602i
MODEL
PARK.C.S
2007.01.24
1/6
DRAWING
RF
DRAWING
LG Electronics Inc. Rev_1.2
NO.
LG Electronics Inc.
LGMC
A
B
C
D
E
F
C
D
E