Samsung SM-A920F Service Manual page 111

8. Level 3 Repair
8-4-36. LTE B1/4 , WCDMA B1/B4 DRx
Check status OK at mechanical material
Check C2036 ≥ -65dBm ?
Check component soldering status OK at
Check L2029 ≥ -65dBm ?
Check component soldering status OK at
Check C2031 or L2042 ≥ -65dBm ?
Receiver is O.K?
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YES
YES
U2002?
YES
YES
U2031 ?
YES
YES
YES
END
NO
Change
mechanical material
NO
Resolder or change
VR2002 or L2033 or C2036 or C2122
NO
Resolder or change
U2002
NO
Resolder or change
L2029 or C2038 or C2047
NO
Resolder or change
U2031
NO
Resolder or change
C2031 or L2042
NO
Resolder or change
U2029