Circuit Diagram - LG -P768 Service Manual

7. CIRCUIT DIAGRAM

MAIN RF
B1 RX Diversity
L130 2.7n
RD_B1_HX
3
C184 O1 G1
1.5p
O2 G2
L134 2.7n
4
RD_B1_H
FL102
2140MHz
B9469
SFSY0035004
revA(1.8nH) -> revB(1nH)
1n C120
VDD_2V85
C144
10n
C136 1.8n
GSM_LB_TX TXL VSPI
8 16
TXH VDD
6 17
GND5 FL101 TRX_6
10 18
L104 L105 GND4 RF6361A TRX_5
DNI DNI 9 19
GND3 TRX_4
7 20
revA(2.7nH) -> revB(1.8nH)
C139 1.8n
GSM_HB_TX
L109
L108
DNI
0.75p
B5/GSM850
B8/EGSM
Daisy_Chain
Daisy_Chain
LGE Internal Use Only
revA -> revB Added
2
L131 1n
1 R101 33p
DPX_IN
IN
5
L132 L133
DNI 4.7n
SW101
UFL-R-SMT10
revA(1nH) -> revB(1.2nH)
SW102
MS-156C
G1
L128 1.2n
2
COMMON ANT ANT G2
1
G4 G3 ENWY0003901
L135
ENWY0008701 4 3 L129
L101
DNI
DNI
150n
GSM1800_RX
2.7n
C132 33p C133
L102
DNI
B1
48
ANT_GSM1800
C134 33p C135 1.8n 12
ANT_Band1
50
ANT_Band2
46
C143
revA(1.5nH) -> revB(1.8nH) ANT_Band5
44
100p L103 ANT_Band8
DNI U102
B40251GY2045L
2 EAM62530601
GND1
4
GND2
5
B2/GSM1900 GND3
6
GND4
8
GND5
10
C137 1.5n C138 100p
GND6
revA(2.2n) -> revB(100p)
revA(7p) -> revB(1.5nH)
L106
DNI
revA(5.6nH) -> revB(4.7nH)
revA(6.8nH) -> revB(3.3nH)
revA(1.5pF) -> revB(0.75pF)
C145
220p C146 3.3n
C159
L112
DNI
revA(DNI) -> revB(2.2nH)
C151
C150 220p 3.9n revA(2.7nH) -> revB(1nH)
C152
L115
DNI
revA(1pF) -> revB(0.5pF)
revA(0.75pF) -> revB(0.5pF)
TX_L
TX_H
PA_POW_DET
PA_RF
VSPI
SPI_CLK
SPI_SS
SPI_DRW
PA_RAMP
RESET_N
RD_B1_H
RD_B1_HX
RX_B8_L1X
RX_B8_L1
RX_B5_L2X
RX_B5_L2
RX_GSM1800_M1X
RX_GSM1800_M1
RX_B2_M2X
RX_B2_M2
RX_B1_H2X
RX_B1_H2
X101 1XXA26000FBA
3 4
OUT VCC
2 1
GND VCONT
VDD_1V8
26MHz
EAW61443801
C130 C131
22n 10n
GND
18
Rx_GSM1800_1 RX_GSM1800_M1X
19
Rx_GSM1800_2 RX_GSM1800_M1
14
Rx_Band1_1
RX_B1_H2X
15
Rx_Band1_2 RX_B1_H2
16
Rx_Band2_1 RX_B2_M2X
17
Rx_Band2_2 RX_B2_M2
20
Rx_Band5_1 RX_B5_L2X
21
Rx_Band5_2 RX_B5_L2
22
Rx_Band8_1 RX_B8_L1X
23
Rx_Band8_2 RX_B8_L1
34
GND19
35
GND20
36
GND21
C163 4.7n
0.75p
L125
B8_TX RF_GND
1 21
2.2n
B5_TX NC
2 13
B3_TX LB_RFIN
7 15
L120
U103
DNI
B2_TX HB_RFIN
4 RF6261B 8
B1_TX EAN62491801 VCC
5 16
GSM_LB_TX GSM_LB_TX SDI_EN
1n 3 9
GSM_HB_TX GSM_HB_TX SDI_CLK
6 11
0.5p SDI_DAT
10
L116
GND
C147 2.7n
C141 C142
100n 0.1u
0.5p CP_OUT
L113
PAM DCDC
VBAT
C168 100n D6
C169 10u D2
C171 10u A2
A4
VSPI
C172 R108
D5
0.1u
20
CP_OUT
A6
PA_RAMP
C5
SPI_SS
B4
C176 SPI_CLK
B5
DNI SPI_DRW
B6
C181
C114 C182 C183
220n
DNI 5.6p 5.6p
- 144 -
A4
PM_L
A2
PM_H
D1 J5
PA_POW_DET VDD2V5_RCRF
C1 J4
PA_RF VDD2V5_RCBB
E3 C5
VSPI VDD2V5_TXBIAS
D3 C6
SPI_CLK VDD2V5_TXDCO
E4 J8
SPI_SS VDD2V5_RXDCO
D4 L10
SPI_DRW VDD2V5_RFC
M12 D10
PA_RAMP VDD2V5_FSYS
M11 B9
PA_BIAS D2B_OUT
K12 F3
RESET_N VDD1V8_RCBB
M3 L2
RD_L2 VDD1V8_RCRF
M4 F7
C116 RD_L2X VDD1V8_RCMS
L4 G5
RD_L1 VDD1V8_RCLO
DNI
L5 L9
RD_L1X VDD1V8_RXDCO
M5 A6
RD_M VDD1V8_TXDCO
M6 D5
RD_MX VDD1V8_TXLO
L6 D2
RD_H VDD1V8_FBR
L7 E8
RD_HX VDD1V8_TXMS
F2 C9
RX_L1X VDD1V8_DIG
U101
E2 B13
RX_L1 VDD1V8_SCU
G1 L13
RX_L2X VDD1V8_RFC
F1 K9
RX_L2 PMB5712_A2 VDD1V8_RXPLL
H2 A9
RX_M1X VDDBAT
G2 C2
RX_M1 D2B_OUT_TXRF
J1 B2
EAN62514301
RX_M2X VDD_TXRF
H1 F9
RX_M2 VDD1V2_DIG
L1 E12
RX_H2X VDDIO
K1 B1
RX_H2 VDDBAT_TXRF
K2 D8
RX_H1X CEXT_TXPLL C121
J2 C4
C127
RX_H1 CEXT_TXMS
B11 H9
XO_SUP CEXT_RXPLL C128
A12 A10
XOX CEXT_XO C129
A11 F13
XO SYS_CLK
B10 F12
AFC_DAC SYS_CLK_EN
B12 E13
XO_EXT REF_CLK_EN
K13 C13
CLK_ON CLK_ON DI3_RX_DAT
G13 D13
FSYS1_EN DI3_RX_DATX
G12 C12
FSYS1 DI3_TX_DAT
H12 D12
FSYS2_EN DI3_TX_DATX
H13 E7
FSYS2 GPO1
J13 B5
FSYS3_EN GPO2
J12 A5
FSYS3 GPO3
A1 M8
NC1 GPO4
A13 M9
VBAT
R_EXT GPO5
M1 M10
NC3 GPO6 TP101
M13 K11
NC4 DAP0
E9 J11
FUSE_SUP DAP1
A8
MI1 TP102
B8
MI2
C153 33p
TX_L
C154
L117
DNI DNI
revB(6.8nH)->revC(4.7nH)
C148 4.7n
TX_H
VBAT_PAM
8.2n
L114
C149 DNI
Tranceiver PMU
revB(6.9nH)->revC(8.2nH)
SPI_SS
VSD2_1.8V
SPI_CLK
SPI_DRW
C156
0.1u
TP103
VBAT
C1
VPWR
FB101 120
A4
C160
VANA
C161
4.7u
EUSY0264511
10n
C162
1u
B3
VBATT2 CWELL
D4 C170 220n
VBATT1A CC_P
C4
VBATT1B CC_N
D1
VSDI CA_P
D3 C173 2.2u
U105 CA_N
CP_OUT
RF6561
A1 VBAT_PAM
CB_P
EAN62529801 A3 C175 2.2u
VRAMP CB_N
A5
L127 85n
SDI_EN VOUT_FB
B1
SDI_CLK L_OUTA
C1 L126 1u
SDI_DATA L_OUTB
NC C178 C179 C185
C177
3.3u 220n 220n 1u
revA(DNI) -> revB(1u)
7. CIRCUIT DIAGRAM
C101 C102 C103 C104 C105
VDD_1V8
47n 0.1u 0.1u 0.1u 2.2u
C106 C107 C108 C109 C110 C111 C112 C113
47n 47n 47n 0.1u 0.1u 0.1u 0.1u 0.1u
VDD_2V85
VDD_2V65
VDD_1V2
VSD2_1.8V
VBAT
6.8n
1n C122 C123 C124 C125 C126
6.8n 0.1u 4.7u 1u 0.1u 100n
4.7n
DI3_SYS_CLK
DI3_SYS_CLK_EN
DI3_REF_CLK_EN
DI3_RX_DAT
DI3_RX_DATX
TP104 TP105
DI3_TX_DAT
R103
100
DI3_TX_DATX
R113 must be close to PMB5712
VDD_1V2
VDD_2V85
VDD_1V8
C157 C158
2.2u 1u
L119 4.7u
D3
LX1
C3
VSNS_1V2
L121 4.7u L122 15n
D1
LX2
U104
C2
VSNS_1V8
RF6590
L123 4.7u L124 15n
B1
LX3A
A1
VSNS_2V85
A2 VDD_2V65 C164 C165 C166 C167
OUT3B
4.7u 4.7u 4.7u 1u
C174
4.7u
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