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Level 3 Repair
8-44
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Check L121
≤
-65dBm ?
8-3-16. WCDMA Band1 RX
CONTINUOUS RX ON
RF INPUT : 10700CH
AMP : -50dBm
BAND1 Receiver is O.K?
resolder or change
U300
END
NO
YES
Check L112, DPX101,
C146,C147,L117,L118
≥
-65dBm ?
resolder or change
FEM100,L112,DPX101,C146
,C147,L117,L118
NO
YES
NORMAL CONDITION
catch the channel?
Check the Voltage at
L135 = 2.6V
CHECK soldered
RFS100,L101,L121,C107,C159
resolder or change
L135, U502
NO
YES
NO
NO
YES
Check the voltage at
{C318,C319=2.2V ?}
&
{C321,C322,C324,C325,C3
26,C327=1.3V ?}
resolder or change
U502
Check the freq. at
OSC500 : 19.2MHz ?
change or resolder
OSC500
NO
NO
YES
YES