Samsung SM-G973F Service Manual page 93

8. Level 3 Repair
8-4-35. WCDMA B5/8, LTE B5/8/12/13/17/18/19/20/26/28 TX
NORMAL CONDITION
Catch the channel?
Check RFS1000
about ≥ 23dBm?
Check C1005 ≥ 23dBm
Check F1000 ≥ 23dBm
Check component
soldering status ok?
PAM1000
Check component
soldering status ok?
L1019
Check component soldering
status U3000
Receiver is OK?
END
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No
No
No
No
Yes
Yes
Yes
Yes
Yes
Check the ANT1001
Yes
Resolder or change
RFS1000, C1005, C1004, L1001
Yes
Resolder or change
F1000, L1037, C1055
No
Resolder or change
PAM1000
Resolder or change
L1019, C1030, C1029
No
Resolder or change
U3000
No
Resolder or change
UCP5000