Level 3 Repair
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8-44
Check C108
≤
-65dBm ?
8-3-18. WCDMA BAND 2 RX
CONTINUO
US RX ON
RF INPUT : 4408CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
Check the Voltage at
C105 =VOUT_CHARGER ?
Check component
soldering status OK at
U104
CHECK soldered
L104,C108,RFS100
Resolder or change
PAM
100, C105
Resolder or change
U104
Check L116
≥
-65dBm ?
Resolder or change
Check L127
WCDMA Band5
/ GSM 850
Receiver is O.K?
Resolder or change
U401-1
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
Check U104 PIN 5
≥
-65dBm
Resolder or change
U104
NO
YES