Samsung SM-G975F Service Manual page 117

8. Level 3 Repair
8-4-29. LTE B1/4 4Rx_PRx
Check C1062 ≥ -65dBm ?
Check component soldering status OK at
Check L1058 ≥ -65dBm ?
Check component soldering status OK at
Check L1033 ≥ -65dBm ?
Check component soldering status OK at
Check L1032≥ -65dBm
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Check status OK at
coaxial cable and
mechanical material
YES
YES
F1002 ?
YES
YES
U1005 ?
YES
YES
U1003 ?
YES
YES
Receiver is O.K?
YES
END
NO
Change
Coaxial cable or mechanical material
Resolder or change
NO
ANT1010 or L1053 or C1062 or
L1055 or L1056
NO
Resolder or change
F1002
NO
Resolder or change
L1058 or L1059
NO
Resolder or change
U1005
NO
Resolder or change
L1033
NO
Resolder or change
U1003
NO
Resolder or change
L1032 or L1035 or L1031
NO
Resolder or change
U3000