- 141 -
5
TX VCO CONTROL LOGIC
Sheet/
DRAWING
LOW
LG Electronics Inc.
F
DCS/PCS TX
HIGH
HIGH
A
LOW
Sign & Name
9
C
IN_A
GSM850/900
10
(5.62K:NEAR TO RFR6202)
DCS RX
LG Electronics Inc.
D
NAME
PCS RX
LOW
Approved
DRAWING
HIGH
LOW
Checked
D
HIGH
Date
ANTENNA SWITCH MODULE LOGIC
NO OSCILLATION
F
LG Electronics Inc.
(1%)
Designer
Designer
( 1% )
IN_C
DRAWING
15
HIGH
NO.
HIGH
Closed to VDDA5
C
GSM900 RX
6
HIGH
Thermistor Circuit
LOW
E
4
LOW
12
LOW
HIGH
(0:RFIN2 | 1:RFIN1)
NAME
HIGH
LOW
LOW
11
(1%)
14
LG Electronics Inc.
(5.62K : NEAR TO RFR6202 )
D
GSM/EDGE
5
D
GSM 850 RX
Checked
HIGH
LOW
HIGH
Sheets
HIGH
UMTS 1900
7
SW2
9
(1%)
B
E
HIGH
LOW
LOW
1%
B
C
DRAWING
1
13
Date
( 1% )
BLUETOOTH
UMTS 850
HIGH
4
GSM900/GSM850 TX
2
A
3
HIGH
MODEL
2
16
E
F
1%
LOW
IN_B
TCXO
Approved
7
Sheets
(1%)
NO.
3
( 1% )
WCDMA
10/31
2005
SH NAM
RF/BT
1/6
CU500
2005
CU500
MAIN_1.2
MODEL
1
(1%)
HIGH
(1%)
LOW
8
Section
C
DCS1800/PCS1900
Sheet/
8
6
E
SW1
Sign & Name
Section
VREG_MSMP_2.7V
5.6nH
L113
C1911
5.6p
C1027
ANT101
FEED
NC1
NC2
820p
C1073
2
G1
5
G2
1
IN
3
O1
4
O2
NA
B7844
FL103
0
R1900
C1052
100u
82p
C1084
C1030
1000p
0.5p
C1828
220
R1020
C1112
6p
C1115
0.1uF
10p
C1072
C1500
1000p
C1074
1.5p
C1090
0.5p
L119
4.7nH
2.2u
C1152
56p
C1075
C1021
100p
CLK_REF
1
GND1
7
GND2
15
GND3
LDO1
2
LDO2
31
3
NC
RX_BB_TX_BB
8
SBCK
10
11
SBDT
SBST
6
5
SYNC_DET_TX_EN
VDD_A
14
VDD_MSM
12
XTAL_IN
4
M1
RB06A
ANT
16
9
R1027
100K
C1047
VREG_RFRX_2.85V
0.01u
R1032
22
C1024
33p
C1078
100p
NA
L117
NA
L130
1nH
C1085
VREG_RFTX_2.85V
C1124 100p
C1013
150p
VREG_RFTX_2.85V
B7845
G1
2
G2
5
IN
1
O1
3
O2
4
R1000
FL100
1K
R1006
11K
L145
5.6nH
47nH
L120
VREG_BT_2.85V
VREG_BT_2.85V
NA
L121
100
R1042
100p
15nH
L152
C1507
R1031
11K
33p
C1009
C1094
C1058
2200p
C1066
33p
VREG_RFRX_2.85V
15p
4.7u
tcc_1608h_9_r
C1062
C1823
NA
B7838
FL109
2
G1
5
G2
1
IN
3
O1
4
O2
L123
6.8nH
KMS-507
ANT
G1
G2
RF
SW100
VREG_SYNTH_2.85V
4.7nH
L118
4.7nH
VDDA6
27
VDDA7
29
VDDA8
39
23
VDDM
L126
RX_QM
33
34
RX_QP
R_BIAS
38
SBCK
25
26
SBDT
SBST
24
TCXO
28
UMTS_H_INM
8
UMTS_H_INP
6
40
UMTS_L_INM
UMTS_L_INP
2
VDDA1
4
14
VDDA2
VDDA3
17
VDDA4
18
20
VDDA5
1
GND1
35
GND10
3
GND2
5
GND3
7
GND4
9
GND5
11
GND6
GND7
13
GND8
22
GND9
32
15
LO_INM
LO_INP
16
19
LO_OUT
PGND
41
30
RX_IM
31
RX_IP
U108
RFR6202
DNC1
10
12
DNC2
DNC3
21
DNC4
36
37
DNC5
10
L102
4.7nH
R1043
56nH
L105
C1077
NA
33p
C1046
C1061
4.7u
3.3p
5.6n
C1045
C1087
GND1
GND2
GND3
GND4
GND5
GND6
RX
TX
ECHU1C562JX5
33p
LM56C
FL107
ANT
C1023
2.2nH
L160
VREG_MSMP_2.7V
L401
R1025
80.6K
3.9nH
1K
R1001
R1004
1.8K
4.7p
L153
1.5nH
C1049
100
R1036
NA
L135
6p
C1116
C11230.1uF
UMTS_H_IN
4
UMTS_H_OUT
11
UMTS_L_BIAS
2
UMTS_L_IN
1
13
UMTS_L_OUT
15
VDDA
VDDM
9
GND1
5
6
GND2
GND3
12
GND4
14
17
PGND
R_BIAS
16
7
SBCK
10
SBDT
SBST
8
UMTS_H_BIAS
3
R1005
3.3K
RFL6202
U109
33p
C1444
4.7nH
L127
0.01u
C1132
L149
4.7nH
OUT
3
4
VCC
1
VCONT
1000p
C1020
X102
19.2MHz
GND
2
C1017
33p
47nH
NA
L148
C1106
0.1uF
C1130
33p
C1063
R1018
270
0.1uF
C1108
R1021
220
1nH
L107
R1017
100
R1028
51
C1026
NA
2200p
C1101
L141
L151 3.3nH
68nH
5
31
2200p
C1100
Q100
KRX102E
2
4
C1156
1000p
1u
C1158
NA
L116
C1000 56p
68p
C1038
C1007
33p
U104
HHM2221SA3
GND1
2
GND2
5
1
IN
6
M_OUT
3
OUT
RES
4
R1033
1000p
22
C1054
2.2u
C1821
NA
L104
100p
C1511
12p
VREG_RFTX_2.85V
VREG_MSMP_2.7V
C1127
100p
L172
4.7nH
1
IN
3
O1
4
O2
C1091
B7837
FL102
2
G1
5
G2
C1081
0.1uF
2.7p
C1121
VREG_RFTX_2.85V
4.7u
4.7nH
C1107
L125
R1008
2.2K
R1023
100
C1060
0.1uF
C1126
8.2nH
L154
27p
R1016
15
C1032
15p
R1034
5.62K
C1040
330p
33p
C1035
C1114
4.7u
1000p
C1006
C1151
100p
12
GND6
GND7
13
14
GND8
OUT_DCSPCS
5
OUT_GSM
1
SW1
9
SW2
11
VB
3
10
VC
X101
MQW5V0C869M
2
GND1
4
GND2
6
GND3
GND4
7
8
GND5
R1039
5.62K
4p
C2001
51
R1040
R1014
15
8.2nH
L146
0.1uF
C1064
1K
R1002
0.1uF
ANT
G1
G2
G3
G4
G5
G6
G7
RX
TX
C1036
FL106
ACMD-7402-TR1G
R1026
470K
C1079
100p
C1014
270
100p
R1019
C1118
C1155
1000p
0.1uF
C1056
51p
C1150
0.1uF
0.75p
100p
C1092
C1001
C1912
5.6p
100
R1041
C1135
1000p
C1034
33p
C1134
1000p
C1002
150p
2.2nH
C1029
100p
L114
100
R1015
L144 8.2nH
C1065
15p
33p
C1008
33p
C1043
C1022
2200p
0.1uF
C1042
ECHU1C392JX5
C1098
3.9n
C1028
0.01u
0.1uF
C1089
C1109
1000p
12p
R1022
C1131
100p
51
IN
3
O1
4
O2
C1080
B7851
FL101
2
G1
5
G2
1
C1051
33p
0.1uF
C1113
FB102
C1136
1000p
L132
NA
FB101
0.068u
C1140
C1120
0.1uF
8
GND4
OUT
1
3
SWITCH
7
VCC
C1083
82p
MQW541A1G44 X100
5
CON
GND1
2
4
GND2
GND3
6
33p
C1019
R1011
6.2K
0.5p
C1827
FB104
BS
C2
FB
A2
GND
B1
A3
OUT
A1
RFIN1
RFIN2
C1
C3
SD
B3
VDD
U107
LMV232TLX
L101
15nH
C1088
100p
C1015
33p
L129
C1004
47nH
33p
4700p
C1059
100p
C1082
2.2nH
L110
6p
R1003
C1050
10
100p
C1153
1K
R1013
L143
6.8nH
1000p
C1033
31
C1157
1u
KRX102E
Q101
2
45
TX_EN
VBATT
4
VCC21
8
VCC22
18
13
VCC_OUT
VRAMP
6
5
VREG
VREG_TCXO_2.85V
+VPWR
BS
2
1
DCS_PCS_IN
DCS_PCS_OUT
16
9
GND1
11
GND2
GND3
12
GND4
14
15
GND5
GND6
17
GSM_IN
7
GSM_OUT
10
19
PGND1
PGND2
20
21
PGND3
3
U102
AND0041
C1102
4.7u
GND1
GND2
IN
OUT
C1137
FL105
B9014
1000p
C1037
390p
6.8nH
L111
10nH
L142
C1501
4.7nH
VREG_RFTX_2.85V
1000p
C2002
L128
NA
L106
NA
R1038
5.62K
4.7nH
L108
TC7S04FU
U110
GND
3
2
4
VCC
5
0
R1037
NA
C1086
0.5p
C1829
51
R1029
0.01u
C1503
C1910 27p
30
NC9
PGND1
29
31
PGND2
RX1
5
4
RX2
RX3
3
2
RX4
21
TRX1
19
TRX2
TX1
13
TX2
11
25
VDD
GND1
1
6
GND2
12
GND3
18
GND4
GND5
20
GND6
22
GND7
24
NC1
7
32
NC10
8
NC2
NC3
9
10
NC4
14
NC5
NC6
15
16
NC7
NC8
17
CXG1198AEQ
U100
23
ANT
CTL-A
26
27
CTL-B
CTL-C
28
4.7u
C1025
C1031
ECHU1C103JX5
10n
54
VDDA16
VDDA17
56
VDDA2
5
VDDA3
7
10
VDDA4
VDDA5
15
VDDA6
23
26
VDDA7
27
VDDA8
VDDA9
31
VDD_M
43
8
VTUNE_REF
TX_MOD_CP
40
17
TX_QN
TX_QP
16
42
TX_VCO_FB
UMTS1900_OUT
53
UMTS2100_OUT
51
55
UMTS800_OUT
49
VCONTROL
9
VCO_TUNE
4
VDDA1
36
VDDA10
VDDA11
39
41
VDDA12
48
VDDA13
VDDA14
50
52
VDDA15
22
GSM850_INP
GSM900_INN
38
37
GSM900_INP
RF_ON_TX_ON
47
RX_IN
14
13
RX_IP
12
RX_QN
11
RX_QP
32
RX_VCO_IN
33
R_BIAS
44
SBCK
45
SBDT
SBST
46
6
TCXO
TX_IN
19
TX_IP
18
CP1
2
30
CP2
1
CP_HOLD1
29
CP_HOLD2
20
DAC_REF
FAQ1
3
FAQ2
28
57
GND_SLUG
GSM1800_INN
34
35
GSM1800_INP
GSM1900_INN
24
25
GSM1900_INP
21
GSM850_INN
6.8nH
RTR6250D
U101
L402
NA
L147
33p
C1016
L136
NA
33p
C1011
82p
C1048
0.1uF
C1018
33nH
C1105
33
R1010
C1110
1500p
1K
R1030
U106
HHM2202SA3
GND1
2
GND2
5
1
IN
6
M_OUT
3
OUT
RES
4
100p
1p
C1141
C1133
2.7p
VREG_RFTX_2.85V
L133
NA
C1117
C1119
100p
G2
1
IN
3
O1
4
O2
0.1uF
C1010
B7847
FL110
G1
2
5
C1111
0.01u
L100
1nH
ANT100
27p
C1125
C1041
22n
6.8nH
3.3K
R1009
L1002
L1001
6.8nH
NA
L103
24
VREG_CELL
3
1
VREG_PCS
C1099
10p
NC7
25
PGND
RFIN_CELL
5
RFIN_PCS
2
RFOUT_CELL
14
RFOUT_PCS
16
6
VCC1_CELL
VCC1_PCS1
23
22
VCC1_PCS2
VCC2_CELL1
9
10
VCC2_CELL2
11
VCC2_CELL3
21
VCC2_PCS1
20
VCC2_PCS2
VCC2_PCS3
19
4
VMODE_CELL
VMODE_PCS
RF5144
U105
NC1
7
8
NC2
NC3
12
13
NC4
15
NC5
NC6
17
18
R1012
100
VREG_SYNTH_2.85V
L112
47nH
L137
1.5nH
120p
C1039
C1071
33p
FB100
3.3nH
L150
L124
4.7nH
C1824
NA
11K
R1035
KRX102E
Q102
2
45
31
R1024
68K
C1055
100p
150p
C1012
VREG_RFTX_2.85V
VREG_MSMP_2.7V
VREG_RFRX_2.85V
G2
1
IN
2
OUT
150p
C1005
FL104
NFM21PC105B1A3
G1
3
4
B9003
FL108
GND1
GND2
IN
OUT
NA
VREG_MSMP_2.7V
VREG_RFTX_2.85V
C1097
C1093
0.1uF
WCDMA_1900_TX_OUT
WCDMA_800_TX_OUT
TCXO_BT
BT_DATA
BT_TX_RX_N
BT_SBST
BT_SBDT
BT_SBCK
BT_CLK
GSM_PA_BAND
GSM_TX_VCO_0_EN_N
GSM_TX_VCO_1_EN_N
WCDMA_800
VREG_W_PA
PA_ON0
PA_ON1
GSM_PA_EN
HDET_EN
HDET_BAND_SEL
WCDMA_800
WCDMA_1900
ANT_SEL0
ANT_SEL2
ANT_SEL1
WCDMA_1900
RFR6202_TCXO
TRK_LO_ADJ
HDET1
RX0_I_M
RX0_I_P
RX0_Q_P
RX0_Q_M
GSM_PA_RAMP
CP2_OUT
DAC_REF
RX0_I_P
RX0_Q_P
UHF_LO_BUFF
TX_Q_P
TX_I_P
RTR6250_TCXO
UHF_VCO_0_EN
UHF_BAND_SEL
TX_Q_M
TX_I_M
RX0_Q_M
UHF_LO_BUFF
WCDMA_800_TX_OUT
CP2_OUT
TCXO_PM
RF_SBCK
RF_SBDT
RF_SBST
RTR6250_TCXO
WCDMA_1900_TX_OUT
TX_ON
TX_AGC_ADJ
RX0_I_M
PA_THERM
TCXO_BT
RF_SBCK
RF_SBDT
RF_SBST
RF_SBCK
RF_SBDT
RF_SBST
RFR6202_TCXO
7. CIRCUIT DIAGRAM
TU550
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Summary of Contents for TU550
Page 1: ...Date May 2007 Issue 1 0 Service Manual Model TU550 Service Manual TU550 Internal Use Only ...
Page 185: ...Note ...
Page 186: ...Note ...