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