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8. Level 3 Repair
8-4-25. DCS1800/PCS1900, WCDMA B2, LTE B2/3/25 PRx
Check component soldering status OK at
F1000 ?
Resolder or change
F1000
NO
YES
Check 1010
≥
-65dBm ?
Resolder or change
RFS100 or L1006 or C1010 or
C1013 or L1004
YES
NO
Check C1050
≥
-65dBm ?
Resolder or change
C1050
NO
YES
Check component soldering status OK at
U1005 ?
Resolder or change
U1005
NO
YES
Check L1048
≥
-65dBm ?
Resolder or change
L1048 or L1051 or C1059
NO
YES
Receiver is O.K?
END
Resolder or change
U3000
YES
NO
YES
Check status OK at
coaxial cable and
mechanical material
Change
Coaxial cable or mechanical material
NO