LG LG-D855 - Check of RF Signal Path (B40)

3. TROUBLE SHOOTING
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3.7.3.7 Checking RF signal path (B40)
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TP2
TP1
U1803
2.2uC1824
C1826 4.7u
L1809 8.2n
1.5p
L1808
0.5p
L1810
C1825 2.2u
FL1801
5 3 2
4 1
INOUT
G1G2G3
L1811
3.3n
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
C1820
100p
12
C1823
4.7n
10n
C1850
C1818
3.6n
DNI
L1856
C1845
3.3n
RFFE1_CLK
RFFE1_DATA
ANT_TX_B40 WTR_B40_TX_HB2
TP2
TP1