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8. Level 3 Repair
NORMAL CONDITION
Catch the channel?
Check soldering
status(U2009) and the
voltage at
C2008,C2032 =1.0V &
C2013,C2017=1.8V &
C2018=1.2V
8-4-43. CDMA BC1, TDSCDMA B34/39, WCDMA B1/2/4, LTE B1/2/3/4/25/39/66 TX
No
No
Check RFS 1000
about
≥
23dBm?
Check the ANT, Sub PBA
Yes
Check L1000
≥
23dBm
No
Resolder or change
RFS1000, F1000, C1095, C1002,
C1080
Yes
Check component
soldering status ok?
U1007, C1029, C1030
Resolder or change
U1007, C1029, C1030
No
Yes
Receiver is OK?
Resolder or change
UCP500
No
Yes
Yes
Resolder or change
U2009
No
END
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