LG LG-P970 Service Manual

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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
C157
8.2n
1.5p
C126
6.8nL128
CN12
1
CN10
1
CN11
1
CN8
1
CN9
1
CN6
1
CN7
1
CN4
1
CN5
1
CN2
1
CN3
1
CN1
1
L133
1.2n
CN17
1
CN15
1
DNI
C5027
U103
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VBPISO
VMODEGND
VENCPL
C152
22p
CN19
1
CN18
1
C131
DNI
C170
1.8p
33p
C5029
C179 0.1u
C5026
DNI
U105
51
8 7
9 6
10 5
11 4
12 3
13 2
14 1
RFIN_LOWRFOUT_LOW
VMODEGND3
VBPVCC2
VCC1GND2
VEN_LOWRFOUT_HI
VEN_HIGND1
RFIN_HICPL
DNGP
DNI
C143
897.5 MHz,942.5 MHz
FL108
95
84
72
3
6 1
RXANT
TX
GND1 GND4
GND2 GND5
GND3 GND6
1880,1960MHz
FL106
ANT RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
1880MHz
FL107
5 2
4 1
3
G3
INOUT
G1G2
897.5 MHz
FL109
5 3 2
4 1
INOUT
G1G2G3
C5028
33p
1nL129
L113
2.7n
1950MHz
FL111
5 2
4 1
3
G3
INOUT
G1G2
5.6n
L101
L102
5.6n
10n
L123
1.5nL125
DNI
L122
101R
100
2.7nL130
C185 15p
R104 DNI
L110100p
C174
0.5p
10n
C151
DNI
L108
C135
10n
L107
27n
SW102
43
2
1
ANT COMMON
G3 G4
FL110
1950MHz, 2140MHz
95
84
72
3
6 1
RXANT
TX
GND1 GND4
GND2 GND5
GND3 GND6
181C p001
)3060(
p001281C
)3060(
0
61
C
p001
)3060(
10n
C139
481C p001
)3060(
(0603)
10n
C127
10n
C128
(0603) (0603)
10n
C129
2.4nL127
L104
12n
L117 1.5n
0.1uC124
SW101
G1
ANTG2
C150
22u
1u
C178
942.5MHz
FL105
45
1
32
G1 O1
IN
G2 O2
1842.5MHz
FL101
45
1
32
G1 O1
IN
G2 O2
VBAT
VBAT
C134
10n
3.9nL119
p2.8
7
91
C
C117
DNI
DNI
C132
C120
10n
12pC109
1p
C110
C115 47p
10pC188
C108 47p
C121
2.2p
1.8V_SD2.85V_RF21.8V_SD
2.85V_RF1
R105 1K
VBAT
0R103
R102 DNI
C180
15p
33p
C148
C122 22p
L126
8.2n
56pC173
)3060(
381C p001
2.7n
L115
DNI
C193
C172 33p
2.2u
C165
VBAT
C158
DNI
L131 2.7n
L105
15n
C176
DNI
p001
)3060(
161C
1n
C164
DNI
C107
10n
C136
C154 33p
2pC101
DNI
C104
2.2nL114
VBAT
C106 2p
CN20
1
33pC142
U101
9J 2J
9H 8H 6H
5H
2H
7G 6G 5G
4G 2G
9F 8F 7F 5F 4F 2F
7E6E
5E
3E 2E 6D 4D
3D 2D 7C
6C
5C
4C 2C 9B
8B 6B
4B
3B
2B 3A
K6
L6
L5
K5
J5
J6
A7
A8
A9
A10
E11
E10
B11
D11
D10
C8
C9
C11
B10
C10
D9
B5
A5
G3
H3
K3
K2
L3
A4
A2
B1
C1
D1
E1
F1
G1
H1
J1
K1
L2
H10
G9
E8
E9
D8
A11
A1
L11
L1
K4
J4
H11
G10
F10
G11
F11
K11
J7
K10
J8
L9
K9
J11
L10
J10
K7
L7
L8
H7
K8
L4
G8
E4
F6
D7
D5
A6
J3
B7
H4
F3
C3
VDD1_MAIN
VDD2_MAIN
VDD3_MAIN
VDD4_MAIN
VDD5_MAIN
VDD6_MAIN
VDD7_MAIN
VDD8_MAIN
VDD9_MAIN
VDD0_MAIN
VDD_VAR
C_EXT
VDD_FSYS
VDD_IO
XO_SUP
XO
AFC_DAC
FSYS3_EN
FSYS2
FSYS3
FSYS2_EN
FSYS4
TESTPIN6
REF_CLK_EN
SYS_CLK_EN
SYS_CLK
DI3_RX_DAT
DI3_RX_DATX
DI3_TX_DAT
DI3_TX_DATX
TESTPIN7
ALERT_N
RESET_N
CB1
CB2
CB3
CB4
TESTPIN1
TESTPIN2
TESTPIN3
MI1
MI2
RX_L1X
RX_L1
RX_L2X
RX_L2
RX_HX
RX_H
RX_M2X
RX_M2
RX_M1X
RX_M1
LNA1_OUT
LNA1_IN
LNA1INT_CTRL
LNA_CTRL1
LNA_CTRL2
LNA_CTRL3
LNA_CTRL4
TX2G_M
TX2G_L
PA_DC_DET
PA_POW_DET
PA_EN1
PA_EN2
PA_EN3
PA_EN4
PA_MODE
PA_BSEL
PA_RAMP
PA_BIAS1
PA_BIAS2
TX3G_L
TX3G_H
TX3G_M1
TX3G_M2
FE_CTRL1
FE_CTRL2
FE_CTRL3
FE_CTRL4
FE_CTRL5
FE_CTRL6
0DNG 1DNG 2DNG
3DNG 4DNG 5DNG
6DNG
7DNG 8DNG 9DNG
01DNG
11DNG 21DNG 31DNG
41DNG
51DNG
61DNG
71DNG 81DNG 91DNG 02DNG
12DNG 22DNG 32DNG 42DNG 52DNG 62DNG 72DNG
82DNG
92DNG 03DNG 13DNG 23DNG 33DNG 43DNG 53DNG
63DNG
73DNG 83DNG
33pC153
U102
5
4
6 3
7
2
1
VEN
PIN
PGND
GND1GND3
GND2
VDET
1u
C137
10pC111
1n
C145
C194
1p
C113 56p
L124
DNI
33pC102
10n
C138
10n
C140 C141
1u
27pC169
2pC105
)3060(
261C p001
C192
DNI
DNI
C177
C103 47p
47pC116
2140MHz
FL103
45
1
32
G1 O1
IN
G2 O2
C147
100p
8.2pC114
C118 8.2p
3.3nL132
C130 8.2p
8.2pC133
33pC187
2pC112
FL102
1960MHz
52
31
4
O2
IN O1
G1G2
C125 8.2p
8.2pC119
4.7nL106
FL104
881.5MHz
45
1
32
G1 O1
IN
G2 O2
U104
5
4
72
20
6
2
19
25
18
24
23
16
22
15
21
14 12
3
1
11
2
10
3
9
1
8
6
7
17
VCMOS
RXTX_H
GND3
GND4
ANT
RXTX_M1
RX_L1
GND5
GND1
RX_M2
B
H_
3
Q_V
RX_M3TX_HB
DRW
GND_HB
SS
VRAMP
DET
GND_LB
GND_SPI
TX_LB
VSPI
BL_3Q_V
CLK
G
U
LS_
G
GND2
RXTX_L2
6.8n
L103
C167
100p
2.85V_RF1
U106
12
11
10
9
8 7
13
6
41
5
51
4
61
3
17
2
1
NC
RFOUT5
GND
RFOUT1/4
1NEV
RFOUT2
2NEV
RREF
5NIFR
S
GV
RFIN4
CCV
4DNGFR
VON
RFIN2
RFIN1
RFGND1/2
X101
26MHz
DSA221SCL
3
2
4
1
VCONT
VCC
GND
OUT
(1%)
R106 27K
L109
8.2n
1001C
p9.3
10p
C199
2001C
p81
3001C
p7.2
8.2n
L121
4001C
p81
L118
2.7n
691C
p7.2
C198
10n
0R109
2.7n
L120
DNIR110
100p
C144
CN13
1
C146
2.2u
C171
1.8p
CN14
1
DI3_TX_DAT
DI3_TX_DATX
REF_CLK_EN
SYS_CLK
DI3_RX_DAT
SYS_CLK_EN
ALERT_N_UE
DI3_RX_DATX
RESET_N_UE
GSM_TXON_IND
GPS_GSM_CTL
RX_1800
RX_1800
RX_1800_M1
RX_1800_M1
RX_1800_M1X
RX_1800_M1X
RX_850_L2
RX_850_L2
RX_850_L2X
RX_850_L2X
RFOUTH
RFOUTH
CPL_EN
CPL_EN
CPL
CPL
RFOUTL
RFOUTL
LNA_CTRL2
LNA_CTRL2
LNA_CTRL1
LNA_CTRL1
LNA_CTRL3
LNA_CTRL3
TX3G_H_2100
TX3G_H_2100
TX3G_L_900
TX3G_L_900
RX_1900_M2X
RX_1900_M2X
RX_1900_M2
RX_1900_M2
DCS_PCS_TX
DCS_PCS_TX
PA_RAMP
PA_RAMP
PA_POW_DET
PA_POW_DET
PA_POW_DET
PA_EN_2100
PA_EN_2100
PA_EN_900
PA_EN_900
VSPI
VSPI
RX_900_L1
RX_900_L1
RX_900_L1X
RX_900_L1X
RX_2100_HX
RX_2100_HX
RX_2100_H
RX_2100_H
GSM_TX
GSM_TX
PA_MODE
PA_MODE
PA_MODE
TX3G_M1_1900
TX3G_M1_1900
PA_EN_1900
PA_EN_1900
PA_MODE2
PA_MODE2
PA_MODE2
RX_850
RX_850
RFOUTM
RFOUTM
DRW
DRW
SS
SS
CLK
CLK
LNA_CTRL4
LNA_CTRL4
RX_1900
RX_1900
Band2 & PCS
GSM850
Band8/EGSM
Band8
Band2
Band1
Band1
For 2 mode CTRL
For 3 mode CTRL
close to PMB5703
VMODE VBPPAM
PA_MODE NC
PA_MODEPA_BIAS1
PWR Detector
Close to X1000 4-pin
Close to U1000 L4-pin
Differential 100ohm
DCS
ENWY0003901(Hirose)
TOP Shieldcan Pad
7. CIRCUIT DIAGRAM

LG LG-P970 Specifications

General

Brand	LG
Model	LG-P970
Category	Cell Phone
Language	English