Samsung SM-G975F Service Manual page 131

8. Level 3 Repair
8-4-43. WCDMA B1/2/4, TDSCDMA B34/39, LTE B1/2/3/4/25/34/39 Tx
Check component soldering status OK at
Check component soldering status OK at
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Check L1023
: About 0dBm ?
YES
U1005 ?
YES
Check C1050
: About 33dBm ?
YES
F1000 ?
YES
Check L1004
: About 33dBm ?
YES
Check RFS100
: About 33dBm ?
YES
ANT is O.K?
YES
END
NO
Resolder or change
U3000 or L1023 or C1031 or C1028
NO
Resolder or change
U1005
NO
Resolder or change
C1050
NO
Resolder or change
F1000
NO
Resolder or change
L1004 or C1013 or C1010 or L1006
NO
Resolder or change
RFS100
NO
Change
Coaxial cable or mechanical material