3. TROUBLE SHOOTING
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3.5.1.2 Checking RF signal path
4. Trouble Shooting
4. 5. GSM RF Part
4 5 1 GSM850/900/1800/1900 Rx
4. 5. 1. GSM850/900/1800/1900 Rx
4. 5. 1. 2.
Checking RF signal path
Test Point
TP1
U1500
TP2
TP3
Circuit Diagram
TP1(L1210)
TP2(L1214)
TP3(L1221)
23
100p
C1244
C1215
33p
33p
C1220
C1234
33p
L1210
18n
1p
L121
2
33p
C1218
C1221
DNI
L1215
DNI
L1214
15n
L1221
4.7n
C1237
DNI
L1222
DNI
WTR0_PRX_LB3_IN
WTR0_PRX_LB2_IN
WTR0_PRX_MB2_IN
TP1(L1210)
TP2(L1214)
TP3(L1221)