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4. 6. WCDMA RF Part
4. 6. 2. WCDMA B1/2/5/8 Tx
4 6 2 WCDMA B1/2/5/8 Tx
3.6.2.4 Checking RF signal path(B5/B8)
4. 6. 2. 4. Checking RF signal path(B5/B8)
Test Point
TP5
TP6
TP3
TP1
Circuit Diagram
TP1(C1101)
TP1(C1101)
33p
C1101
1
TP3(C1110)
TP3(C1110)
C1110
1.5n
45
LGE Internal Use Only
U1300
FL1100
FL1100
TP2(C1103)
4
3
Termination_Port
OUT
5
2
GND2
GND1
6
1
Coupling
IN
2
FL1103
LDJ1882
Termination_Port
4
GND2
5
Coupling
6
4. Trouble Shooting
U1500
FL1201
FL1103
FL1103
FL10062
FL10062
1
GND1
C1103
3.3n
2
COMMOM
TP5(C1320)
3
GND2
TP2(C1103)
TP5(C1320)
C1320 3.9n
L1312
L1313
1.5p
1.5p
C1323 1.2n
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3. TROUBLE SHOOTING
TP7
TP4
TP2
C1104
8p
6
HI-BAND
5
GND3
4
LO-BAND
TP4(C1105)
C1105
2.2n
TP7(C1314)
TP4(C1105)
TP6(C1323)
C1314
33p
C1315
TP7(C1314)
TP6(C1323)
Only for training and service purposes
33p
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