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Troubleshooting
Call Problem (with RF equipment)
Step Check point Result value Defect point
1 Confirm the defect symptom
- -
2 RF radiation test
Pass Network or Settings
Fail Go to the next step
3 RF calibration
Pass Go to the step 4
Fail Go to the step 5
4 RF radiation test
Pass Repaired
Fail
Except PBA
(Coaxial cable, Antenna,
Shielding condition)
5
A type of failure
LB PAM(U1001)
TRANSCEIVER(U1103)
TXMODULE(TXM1000)
MB/HB PAM(PAM1000)
LFEM(U1007)
FILTER(F1007: B1)
FILTER(F1009: B3, DCS)
FILTER(F1004: B40)
FILTER(F1006: B7)
FILTER(F1008: B2, PCS)
FILTER(F1002: B5, GSM850)
FILTER(F1001: B8, GSM900)
FILTER(F1000: B20)
TX
2G
LB PAM,TRANSCEIVER,
TXMODULE, FILTERs
3G
MB/HB PAM,TRANSCEIVER,
TXMODULE, FILTERs
L T E
MB/HB PAM,TRANSCEIVER,
TXMODULE, FILTERs
RX
2G
TXMODULE, TRANSCEIVER, LFEM,
FILTERs
3G
TXMODULE, TRANSCEIVER, LFEM,
FILTERs
L T E
TXMODULE, TRANSCEIVER, LFEM,
FILTERs