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3.7.4.3 Checking RF signal path
TP3
TP1
TP2
TP1(C1101)
33p
C1101
1
TP4(C1802)
FL1700
C1703
6
FL1800
ANT
6.8n
4
C1802
DNI
DNI
OUT
IN
G3
G2
G1
L1703
L1702
5
3
2
DNI
15n
2
GND1
4
GND2
5
GND3
LGE Internal Use Only
FL1100
FL1100
4
3
Termination_Port
OUT
5
2
GND2
GND1
6
1
Coupling
IN
2
L1700
C1700
33p
C1701
1
RX
885049
L1800
1
C1803
DNI
C1706
3
TX
DNI
3.9p
B40
9
GND6
C1806
L1710
8
DNI
GND5
7
7.5n
GND4
TP5(C1803)
U1500
FL1102
U1800
FL10062
FL1800
FL10062
1
GND1
HI-BAND
C1103
3.3n
2
COMMOM
3
GND2
LO-BAND
TP2(C1103)
18n
WTR0_PRX_LB1_IN
+VPA0
SCLK
SCLK
6
DNI
6
GND
GND
7
7
NC
U1701
NC
8
8
RF_OUT
RF7920
RF_OUT
9
9
VCC2
VCC2
10
10
PGND
PGND
11
11
L1707
18n
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3. TROUBLE SHOOTING
TP6
TP5
TP4
6
C1104
8p
5
GND3
4
C1105
TP3(C1104)
2.2n
+VPA_BATT0
+1V8_VREG_L10
RFFE1_CLK
U1800
RFFE1_DATA
SDATA
SDATA
5
5
VIO
RF7940
VIO
4
4
VBATT
DNI
VBATT
3
C1804
C1711
33p
3
RF_IN
RF_IN
2
2
VCC1
VCC1
1
1
TP6(C1804)
C1714
DNI
Only for training and service purposes
L1801
DNI
C1712
33p
DNI
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