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Level 3 Repair
8-58
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Check L103 about
22 dBm ?
8-3-21. WCDMA BAND1 TX
WCDMA 2100 Transmitter is O.K?
resolder or change
U300
END
NO
YES
NORMAL CONDITION
CHECK soldered
RFS100, L103,L104,C112,C113
NO
NO
Check the Voltage
C142,C143 = VBAT ?
resolder or change
F100
Check L126 about
22dBm?
NO
NO
YES
resolder or change
PAM102,F103
YES
Check the Power
F100 Pin 7 about
22dBm?
NO
resolder or change
U501
YES
Check the freq. at
OSC500 : 19.2MHz ?
change or resolder
OSC500
NO
Check C149 about
8dBm?
resolder or change
U300
NO
YES
YES