3. TROUBLE SHOOTING
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Only for training and service purposes
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3.6.1.1 Checking RF signal path (SW)
Refer to 3.5.1.1
3.6.1.2 Checking Rx signal path(B1/2/5/8)
U1001
FL1010
FL1006
FL1008
FL1004
U1002
TP1/B1
TP2/B2
TP3/B5
TP4/B8
TP8/B8
TP7/B5
TP5/B1
TP6/B2
R1009
2.2n
C1050
DNI
C1049
12n
C1095 100p
C1047
3.3n
33p
C1054
1.8n
L1016
L1015
10p
L1014
2.7n
FL1004
7
5
8
4
9
2
3
1
6
ANT
RX
TX
GND1
GND6
GND2
GND5
GND3
GND4
C1094 100p
4.7n
L1018
GND
TRX_W1900
PRX_W1900_MB2
guarantee LNA gain setting time
Shunt cap must be<=33pF
B2(W1900) Rx/Tx
TP2
TP6
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