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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
3.6.2.3 Checking RF signal path(B1/B2)
4. 6. 2. 3. Checking RF signal path(B1/B2)
Test Point
TP7
TP6
TP3
TP1
Circuit Diagram
TP1(C1101)
TP1(C1101)
33p
C1101
TP3(C1110)
TP3(C1110)
C1110
1.5n
43
LGE Internal Use Only
U1300
FL1100
4
3
Termination_Port
OUT
5
2
TP2(C1103)
GND2
GND1
6
1
Coupling
IN
1
2
FL1103
LDJ1882
Termination_Port
4
GND2
5
Coupling
6
4. Trouble Shooting
FL1201
FL1103
FL1103
FL1100
FL10062
FL10062
1
C1103
3.3n
2
3
TP5(C1305)
TP2(C1103)
TP5(C1305)
C1305
3.3n
L1310
8.2n
- 58 -
3. TROUBLE SHOOTING
U1500
C1104
8p
6
GND1
HI-BAND
5
COMMOM
GND3
4
GND2
LO-BAND
TP4(C1105)
C1105
2.2n
TP7(C1302)
C1304
33p
TP6(C1317)
L1311
TP6(C1317)
7.5n
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP5
TP5
TP4
TP2
TP7(C1302)
TP4(C1105)
C1302
33p
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