- 167 -
LGMC
3
10
8 dB
HIGH
A
Date
LG Electronics Inc.
DCS
Rev. F
VTUNE-Connected directly to GND
Designer
GSM 900 RX
E
(1%)
LG Electronics Inc.
GSM_PA_BAND
12
D
16
LOW
NO.
HIGH
C
Rev. E
15
ANT_SEL2
F
DRAWING
Rev. 1.3
Rev. 1.3
Rev. 1.3
Sheet/
Checked
10 dB
Sign & Name
GSM
DRAWING
Rev. I
MODEL
NO.
E
GSM 1800/GSM 1900 TX
BLUETOOTH
HIGH
LOW
Designer
GSM
LOW
HIGH
TCXO
9
NAME
B
8 dB
SMPS circuit for RF
Checked
F
7
C
Sheet/
Rev. 1.0
Rev.1.3
14
LOW
Thermistor circuit deleted
DCS/PCS
GSM 850/GSM 900 TX
LOW
DRAWING
LOW
HIGH
LG Electronics Inc.
Rev. 1.1
LOW
ANTENNA SWITCH MODULE LOGIC
Date
8
7
B
A
D
5
Rev. H
2
C
(1%)
HIGH
9
3
Section
6
Rev. H
Section
PCS
C
NAME
8
Approved
13
LOW
2
Sheets
E
GSM 850 RX
Rev.I
5
GSM
MODE
Rev. 1.0
Rev.1.2
4
ANT_SEL1
1
4
E
Rev. F
GSM 1800 RX
Rev.I
20dB
Sign & Name
1
6
Approved
GSM 1900 RX
ANT_SEL0
HIGH
Sheets
HIGH
1/29
2007
E. G. CHOI
RF/BT
1/6
CMW
2007
Rev_1.3
Rev.1.3
DRAWING
LG Electronics Inc.
LOW
11
HIGH
END Ref. R125, C186, L125, ANT100, SW100, FL104, U104, X100, PT100, TP101, M100, Q100
LOW
D
LOW
Rev. 1.3
LOW
WCDMA
WCDMA
MODEL
D
LOW
Rev. F
F
HIGH
C175
22u
68
R108
R112
51
51
R122
0.01u
C149
91
R121
2.7nH
R110
NA
C158
22u
C1107
100p
C166
L117
1nH
5.1
R1100
180p
C101
0.1u
ANT100
WFL-R-SMT10
ANT
G1
G2
G3
C1106
C160
NA
22p
91
C179
R111
0.1u
56p
C100
C133
C150
1000p
C113
1.2p
FL104
ANT
2
1
GND1
GND2
4
8
GND3
GND4
9
GND5
6
GND6
3
7
RX
5
TX
SAYZY1G95EB0B00
TC7SH04FS
U102
X100
19.2MHz
GND
2
3
OUT
4
VCC
1
VCONT
15nH
L103
5.6nH
L104
L122
6.8nH
C103
180p
12K
R101
3.3nH
L115
120
EFCH1950TDF1
FL103
G1
2
G2
3
G3
5
IN
1
O1
4
R114
12p
C174
100nH
L101
C180
0.1u
NA
0.5p
C1102
C108
0.1u
C167
5p
NA
L116
C107
1000p
C112
3.3p
C162
VDDA14
49
6
VDDA2
VDDA3
8
9
VDDA4
VDDA5
15
16
VDDA6
19
VDDA7
VDDA8
20
28
VDDA9
VDDM
17
VTUNE1
5
18
VTUNE2
26
WLNA_IN
29
WLNA_OUT
35
WMIX_INN
WMIX_INP
34
10
RX_QP
R_BIAS1
3
R_BIAS2
27
SBDT
14
7
TCXO
21
TEST
TX_IN
50
TX_IP
51
52
TX_QN
TX_QP
53
VCONTROL
56
4
VDDA1
VDDA10
41
VDDA11
45
VDDA12
47
48
VDDA13
55
ENV_OUT
GCELL_INN
30
GCELL_INP
31
25
GND
GPCS_INN
37
36
GPCS_INP
HB_RF_OUT1
46
HB_RF_OUT2
44
43
LB_RF_OUT1
LB_RF_OUT2
42
PGND
57
40
PWD_DET_IN
24
RF_ON
13
RX_IN
12
RX_IP
RX_QN
11
RTR6275
U100
CAL_INN
23
22
CAL_INP
54
DAC_REF
DCS_INN
39
38
DCS_INP
EGSM_INN
33
32
EGSM_INP
1
ENV_LNN
ENV_LNP
2
NA
L125
NA
C142
1u
C172
0.01u
C138
180p
C109
22nH
C146
C170
100p
0.1u
C102
C1101
NA
C161
2.7p
R105
10
L112
0
120
R124
1000p
C155
KRX102E
2
4
5
3
1
L107
Q100
SCDY0003402
50OHM
4
3
COUP
2
IN
1
OUT
5.6nH
U103
R102
12p
C116
100p
680
C186
R113
100ohm
33u
C143
C130
22p
C147
0.1u
C164
1000p
C177
100p
R118 100K
C141
0.5p
TP102
0.1u
C120
C184
1.8nH
0
L108
L114
1.2nH
0.5p
C114
C173
2.2u
2p
1000p
C115
L119
C117
22p
R116
2.2K
68p
C152
22nH
L109
C1100
C153
1000p
0.1u
C1103
0.1u
C131
100p
3300p
100p
C110
C183
C137
56p
0.75p
C163
5.6nH
L102
0.1u
C1105
R125
120
C181
1.5nH
C111
C176
0.01u
1000p
3nH
C156 8200p
10p
C119
L118
C136
100p
L121
8.2p
3nH
L120
6.8nH
C148
1000p
C165
0.01u
C178
1000p
C140
C132
22p
EFCH2140TDE1
G1
2
G2
5
IN
1
O1
3
O2
4
3
GND2
6
7
GND3
9
GND4
GND5
11
2
RFIN
RFOUT
8
VCC1
1
10
VCC2
4
VMODE
VREF
5
FL102
AWT6277R
U104
GND1
0
L113
5.1
5.6nH
L105
R1101
L106
15nH
R1103
2.7
27p
22p
C139
L124
0
R120
0
C157
C185
ANT
G1
G2
RF
0.75p
33p
KMS-512
SW100
2.7
R1102
C182
1000p
C168
8.2nH
C169
C159
6.8nH
1u
C145
39nH
L110
R123
51
6p
C104
C171
1u
L123
8.2nH
180p
C106
120
R115
6p
C105
1000p
C151
GND8
GSM_IN
7
GSM_OUT
9
3
TX_EN
VBATT
4
VCC
12
VRAMP
6
C129
1u
TQM7M5003
BS
2
1
DCS_PCS_IN
DCS_PCS_OUT
15
5
GND1
8
GND2
GND3
10
GND4
11
13
GND5
GND6
14
16
GND7
17
L100
0.5p
U101
0
R100
22u
C118
NA
C1108
56p
TP100
C144
EFCH897MTDB1
FL101
2
G1
3
G2
5
G3
1
IN
4
O1
3
GSM1900RX1
GSM1900RX2
4
GSM850RX1
7
8
GSM850RX2
GSM850_900TX
25
5
GSM900RX1
GSM900RX2
6
NC
17
UMTS1
15
16
UMTS2
VC1
14
13
VC2
VC3
12
11
VC4
VDD
10
ANT
19
9
GND1
18
GND2
GND3
20
21
GND4
23
GND5
24
GND6
GND7
26
GND8
27
28
GND9
1
GSM1800RX1
GSM1800RX2
2
22
GSM1800_1900TX
5
SYNC_DET_TX_EN
VCC_OUT
3
14
VDD_BAT
2
VDD_INT
VDD_MSM
10
XTAL_IN
7
FL100
LMSP4LMA-573TEMP
LBRQ-2B43A
ANT
16
9
CLK_REF
1
GND1
6
GND2
8
GND3
15
GND4
PGND1
17
18
PGND2
PGND3
19
20
PGND4
RX_BB_TX_BB
13
SBCK
11
12
SBDT
SBST
4
M100
C125
NA
VREG_RF_SMPS
VREG_SYNTH_2.6V
VREG_RF_SMPS
VREG_MSMP_2.7V
GSM_PA_BAND
+VPWR
L111
22nH
TCXO_BT
VREG_BT_2.85V
VDD_RX
DCS_PCS_TX
+VPWR
WCDMA_2100_TX_OUT
VREG_BT_2.85V
WCDMA_MIX_IN_M
WCDMA_MIX_IN_P
VDD_RX
RX_WCDMA_2100
PA_R1
ANT_SEL0
ANT_SEL2
ANT_SEL1
VREG_RF_SMPS
WLNA_OUT
PWR_DET
TX_ON
RX_IM
RX_IP
RX_QM
RX_QP
SSBDT_RTR
RTR6275_TCXO
TX_IM
TX_IP
TX_QM
TX_QP
TX_AGC_ADJ
RX_WCDMA_2100
WLNA_OUT
WCDMA_MIX_IN_M
WCDMA_MIX_IN_P
WCDMA_2100_TX_OUT
GSM_TX
DCS_PCS_TX
GSM_TX
TRK_LO_ADJ
BT_SBDT
BT_SBST
BT_SBCK
BT_TX_RX_N
BT_DATA
TCXO_BT
BT_CLK
PWR_DET
VREG_TCXO_2.85V
GSM_PA_RAMP
GSM_PA_EN
TCXO_PM
RTR6275_TCXO
VREG_MSMP_2.7V
PA_ON
VREG_TCXO_2.85V
DAC_REF
7. CIRCUIT DIAGRAM
Содержание U970
Страница 1: ...Date April 2007 Issue 1 0 Service Manual Model U970 KU970 Service Manual U970 KU970 ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 Fig 1 2 RTR6275 RX feature ...
Страница 23: ...3 TECHNICAL BRIEF 24 Figure 1 4 RTR6275 IC functional block diagram WCDMA_2100_TX WCDMA_2100_RX ...
Страница 28: ...3 TECHNICAL BRIEF 29 Figure1 7 PM6650 Block Diagram ...
Страница 41: ...3 TECHNICAL BRIEF 42 Table 1 1 Summary of MSM6280 device features ...
Страница 45: ...3 TECHNICAL BRIEF 46 Figure 1 1 PM6650 Functional Block Diagram ...
Страница 76: ...4 TROUBLE SHOOTING 77 4 1 RF CRF Component TOP SIDE BOTTOM SIDE 4 TROUBLE SHOOTING ...
Страница 81: ...4 TROUBLE SHOOTING 82 Check C412 of PMIC U400 Check R214 of MSM U200 ...
Страница 83: ...4 TROUBLE SHOOTING 84 Logic Table of the FEM ...
Страница 89: ...4 TROUBLE SHOOTING 90 4 7 Checking GSM Block ...
Страница 91: ...4 7 3 Checking RF Tx level 4 TROUBLE SHOOTING 92 ...
Страница 94: ...4 TROUBLE SHOOTING 95 ...
Страница 100: ...4 TROUBLE SHOOTING 101 R403 Q402 Q401 Q400 Charging part Main PCB Front ...
Страница 103: ...4 TROUBLE SHOOTING 104 Q400 X 200 USB part 1 Main PCB Front U503 USB part 2 Main PCB Rear ...
Страница 112: ...4 TROUBLE SHOOTING 113 CN601 CN701 CN700 ...
Страница 115: ...4 TROUBLE SHOOTING 116 C500 C501 R501 R502 ...
Страница 117: ...4 TROUBLE SHOOTING 118 SPK Audio Amplifier Analog Switch ...
Страница 119: ...4 TROUBLE SHOOTING 120 MIC800 R507 C520 ...
Страница 121: ...4 TROUBLE SHOOTING 122 R303 Ear_Sense_N C210 MIC Input ...
Страница 141: ...5 DOWNLOAD 142 ...
Страница 147: ...5 DOWNLOAD 148 Read IMEI BT address from UE 2 Step 4 Check IMEI and Bluetooth address ...
Страница 158: ...6 BLOCK DIAGRAM 159 Table 2 1 RF Block Component ...
Страница 163: ...6 BLOCK DIAGRAM 164 6 2 4 Placement Top Side ...
Страница 164: ...6 BLOCK DIAGRAM 165 Bottom Side ...
Страница 165: ... 166 ...
Страница 175: ... 176 8 PCB LAYOUT U970 KU970 ...
Страница 176: ... 177 8 PCB LAYOUT U970 KU970 ...
Страница 177: ... 178 8 PCB LAYOUT U970 KU970 ...
Страница 178: ... 179 8 PCB LAYOUT U970 KU970 ...
Страница 179: ... 180 8 PCB LAYOUT ...
Страница 180: ... 181 8 PCB LAYOUT ...
Страница 181: ... 182 ...
Страница 187: ... 188 ...
Страница 189: ... 190 ...
Страница 209: ...Note ...
Страница 210: ...Note ...