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8. Level 3 Repair
8-4-34. GSM 1900, WCDMA B2, LTE B2 Tx
Resolder or change
SUB PBA : ANT1000, 1003, 1007,
C1012, L1031, L1032
MAIN PBA : RFS1001
YES
NO
YES
Check status OK at
Caxial Cable(White) and mechanical
material
Change
Caxial Cable(White)
NO
Resolder or change
L1001, C1048, C1055, F1000
Resolder or change
U1000, L1002
NO
NO
Check C1038(SUB PBA) : About 0dBm ?
Check component soldering status OK at
F1000?
Check component soldering status OK at
U1000?
YES
YES
Check component soldering status OK at
U1021
Resolder or change
U1021
Check L1028 : About 0dBm ?
Resolder or change
L1028
YES
Receiver is O.K?
END
Resolder or change
U2010
YES
NO
NO
NO
YES
NO
Check C1165, L1004 : About 0dBm ?
Resolder or change
C1165, L1009, C1062, L1004
Check C1166 : About 0dBm ?
Resolder or change
C1166, L1051, C1059, U1031,
U1029, C1056
NO
YES
YES
Summary of Contents for SM-A326B
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