3. TROUBLE SHOOTING
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3.6.2.3 Checking RF signal path(B1/B2)
4. Trouble Shooting
4. 6. WCDMA RF Part
4 6 2 WCDMA B1/2/5/8 Tx
4. 6. 2. 3.
Checking RF signal path(B1/B2)
Test Point
4. 6. 2. WCDMA B1/2/5/8 Tx
TP7
U1500
U1300
TP5
TP6
TP1
TP3
TP4
FL1201
FL1103
TP5
Circuit Diagram
TP1(C1101)
TP2
FL1103
FL1100
FL10062
TP2(C1103)
TP3(C1110)
TP4(C1105)
TP5(C1305)
TP7(C1302)
43
TP6(C1317)
L1102
DNI
C1103
3.3n
C1104
8p
GND1
HI-BAND
COMMOM
GND3
GND2
LO-BAND
FL10062
4
3
5
2
6
1
DNI
L1104
L1151
DNI
DNI
L111
0
C1101
33p
C1105
2.2n
IN
Termination_Port
GND1
GND2
OUT
Coupling
FL1100
6
3
5
2
4
1
R1100
51
TOL=0.0
1
2
1
L1108
DNI
Termination_Port
GND2
Coupling
LDJ1882
FL1103
6
5
4
L1109
0.5p
C1110
1.5n
L1301
0.5p
C1305
3.3n
L1310
8.2n
L1311
7.5n
DNI
L1302
C1317
4.7p
L1300
DNI
33p
C1302
33p
C1304
TP5(C1305)
TP2(C1103)
TP6(C1317)
TP3(C1110)
TP1(C1101)
TP7(C1302)
TP4(C1105)