Samsung SM-G973F Service Manual page 99

8. Level 3 Repair
8-4-41. LTE B7/38/40/41 TX
NORMAL CONDITION
Catch the channel?
Check RFS1001
about ≥ 23dBm?
Check C1034 ≥ 23dBm
Check component
soldering status ok?
U1006
Check component
soldering status ok?
C1065
Check component soldering
status U3000
Receiver is OK?
END
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No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Check the ANT1004
Yes
Resolder or change
RFS1001, L1022, C1033, C1034
No
Resolder or change
U1006
No
Resolder or change
C1065, L1053, C1064
No
Resolder or change
U3000
No
Resolder or change
UCP5000