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8. Level 3 Repair
8-4-18. GSM1800, 1900, WCDMA B1/2/4, LTE B1/2/3/4/66, NR SUB6 N1/3 PRx
Check component soldering status OK at
U1021
Resolder or change
U1021
Resolder or change
SUB PBA : ANT1000, 1003, 1007,
C1012, L1031, L1032
MAIN PBA : RFS1001
YES
Check L1028 or L1034
≥
-65dBm ?
Resolder or change
L1028 or L1034
YES
NO
YES
Check status OK at
Caxial Cable(White) and mechanical
material
Change
Caxial Cable(White)
NO
Receiver is O.K?
END
Resolder or change
U2010
YES
NO
NO
NO
Resolder or change
L1001, C1055, C1048, F1000
Resolder or change
L1002, U1000
NO
NO
Check C1038(SUB PBA)
≥
-65dBm?
Check component soldering status OK at
F1000?
Check component soldering status OK at
U1000?
YES
YES
YES
NO
Check L1004
≥
-65dBm?
Resolder or change
L1004
Содержание SM-A326B
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