Filter
Top Products
4. TROUBLE SHOOTING
- 84 -
4.6.3 Checking RF Rx Level
TP1
TP2
TP4
TP3
Vbias
RD
1p
C437
ANT101
NA
L101
56p
C101
ANT
G1
G2
RF
SW100
KMS-507
100nH
L102
ANT102
C450
22p
U500
C102
NA
Rev.D
20dB
Rev_1.0
Rev.B
Rev.D
Rev_1.0
Rev.D
Rev.D
WCDMA
7dB
L410
4.7nH
0.5p
L125
L408
10nH
C156
100p
FL102
EFCH1950TDF1
2
G1
3
G2
5
G3
1
IN
4
O1
U102
CP0402A1950DNTR
50OHM
4
3
COUP
2
IN
1
OUT
L404
1.8nH
45
31
NA
L122
KRX102U
TR100
2
1p
C165
C445
2.2p
L411
4.7nH
2.2p
C161
3.3p
3
O2
4
C162
EFCH2140TDE1
FL103
G1
2
G2
5
IN
1
O1
C159
15p
C174
10p
R122
130
R11951
1.5p
C154
C444
2.2p
41
RX
TX
2
FL104
ACMD-7602
ANT
3
PGND
L409
4.7nH
130
R121
L121
1nH
0.1u
C170
4.7u
C155
47
R120
2
RFOUT
8
1
VCC1VCC2
10
4
VCONT
5
VREF
WS2512_TR1G U103
11
BGND
GND1
3
GND2
6
7
GND3
9
GND4 RFIN
0.5p
C164
L128
1.8nH
100p
C192
L407
2.7nH
C158
15p
1nH
L123
10nH
C157
+VPWR
PA_R0
VDD_RX
+VPWR
PWR_DET
PA_ON
VREG_TCXO_2.85V
TP1
TP2
TP3
Vbias
TP4