Level 3 Repair
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8-31
8-3-13. WCDMA BAND8/GSM900 RX
Check C103
≤
-65dBm ?
Yes
No
END
Check C132
≤
-65dBm ?
Check soldered or change
C100, C101, F106, C174,
RFS100, L100, L129, C109
Check soldered or change
U100, C132, C133, L114
Yes
No
Check L115
≤
-65dBm ?
Yes
No
Check component
soldering status OK at
U104
Check soldered or change
F102, L115, L116
Check soldered or change U104
Yes
No
WB8/GSM900 Rx is OK?
Check soldered or change UCP300
Yes
No
NORMAL CONDITION
catch the channel?
CONTINUOUS RX ON
RF INPUT : 3013CH
AMP : -50dBm
