LG LG-D855 - < TRX_B28 A_B > Diagram

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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
U1653ACPM-9328-TR1
6
7 4
8 3
5
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
SDATA
VBATNC
VIOGND
SCLK
C1676 33p
DNI
L1607
C1854 33p
C1855 33p
C1852
DNI
33p
C1706
L1823
18p
FL1600
2655MHz
7
6
5 9
3 8
2
1
4
ANT
TX
GND1
GND5GND2
GND6GND3
GND4
RX
C1842
1n
C1841
100p
+2V7_VREG_L16
L1821 DNI
33p
C1224
33pC1674
L1606
100p
C1708 4.7u
C1709 2.2u
2.2uC1824
C1826 4.7u
ACPM-9307-TR1
U1601
6
5
7
4
8
3
9 2
10
1
11
PGND
VCC1
VCC2
RFINRFOUT
VBAT
NC
VIO
GND
SDTA
SCLK
VREG_BOOST_BYPASS
L1663
DNI
L1662
10n
L1809 8.2n
1.5p
L1808
0.5p
L1810
FL1667
75
84
92
3
16
ANT
RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
FL1702
4 3 5 2 6 1
IN
G3
G1NC
OUTG2
C1847
DNI
100p
L1822
C1835 1.8n
100p
C1844
1n
C1843
FL1752
5
2
6
4
3
1
VDD
GND
PORT2
ANT
PORT1
VCTL
+2V7_VREG_L16
+VPA0
C185110n
C1615 2.2u
+1V8_VREG_S3A
L1612
3.9n
L1610
0.75p
33p
L1666
4.7p
C1605
0.5p
L1611
L1609
33p
L1608
3.3n
L1702 DNI
33pC1702
L1659
DNI
L1855
22n
DNIL1704
C1853
2.7n
VREG_BOOST_BYPASS
C1825 2.2u
+VPA0
DNI
L1664
DNI
L1665
FL1801
5 3 2
4 1
INOUT
G1G2G3
L1811
3.3n
DNI
L1701
C1666
3.3n
1.5n
L1754
2
1
RF7940
U1803
6
4
8 3
7
10 1
29
5
11
PGND
SDATA
RF_OUT RF_IN
VCC1VCC2
GND
VBATTNC
VIO
SCLK
VREG_BOOST_BYPASS
+1V8_VREG_S3A
+VPA0
C1819 1.8p
8.2p
C1753
C1820
100p
12
L1753
100p
12
FL1666
5 3 2
4 1
INOUT
G1G2G3
3.3nL1816
DNI
L1820
L1817
0.5p
FL1655
75
8
4 9
2
3
16
ANT
RX
TX
GND1
GND5GND2
GND6
GND3 GND4
C1823
4.7n
33p
C1677
C1840
DNI
DNI
L1660
5.6n
L1703
L1661
5.6n
3.3n
C1700
10n
C1850
4.7uC1616
782MHz
FL1701
5 3 2
4 1
IN
OUT
G1G2G3
C1614 2.2u
C1818
3.6n
C1707 2.2u
L1705
7.5n
C1668
12p
C1780
100p
100pC1781
DNI
L1856
C1845
3.3n
C1856 33p
+1V8_VREG_S3A
U1804 BGS12PL6
5
1
2
6
3 4
VDD
RF1
CTRL
GND
RF2
RFIN
100p
C1857
12
C1603
1.5n
10n C1849
GND
RFFE1_CLK
RFFE1_CLK
RFFE1_CLK
RFFE1_DATA
RFFE1_DATA
RFFE1_DATA
ANT_PRX_B40
ANT_TX_B40
ANT_TRX_B28A
ANT_TRX_B13
GRFC_3
GRFC_2
ANT_TRX_B7
WTR_B40_TX_HB2
WTR_B40_PRX_HB1
WTR_B7_PRX_HB3
WTR_B7_TX_HB1
PRX_B28B
PRX_B28B
WTR_B28_PRX_LB4
PRX_B28A
PRX_B28A
WTR_B28_TX_LB4
B28B TRX
close to DPX
TX_B40
PORT 1
CTRLVDD
H
H
PORT 2
B28A_B PRX
H L
MIPI APT
B7 TX
B7 TRX
B28 LPF
close to DPX
B28B PRX
< TRX_B7 >
< TRX_B40 >
RX_B40
< TRX_B28A_B >
B28A TX
B28A PRX
B28A TRX