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8. Level 3 Repair
8-4-39. GSM 1800/1900 Tx
Check RFS1001
: About 33dBm ?
Resolder or change
RFS1001
NO
YES
ANT is O.K?
END
Change
Coaxial cable or SUB PBA or
mechanical material
YES
NO
Check component soldering status OK at
U1004 ?
Resolder or change
U1004
NO
YES
Check L1046
: About 30dBm ?
Resolder or change
L1046
NO
YES
Check L1059
: About 0dBm ?
Resolder or change
U2029 or C1092 or L1059
YES
NO
Check component soldering status OK at
F1000 ?
Resolder or change
F1000
NO
YES
Check L1038
: About 33dBm ?
Resolder or change
L1038
NO
YES
Check component soldering status OK at
F1007 ?
Resolder or change
F1007
NO
YES
Check C1096
: About 33dBm ?
Resolder or change
C1095 or C1096 or C1098
NO
YES