Wcdma Band1 Tx Troubles - Samsung GT-I8150 Service Manual

Level 3 Repair
8-3-21. WCDMA BAND1 TX
NORMAL CONDITION
Check L121 about
22 dBm ?
Check the Power
FEM100 Pin19 about
22dBm?
Check L112 about
22dBm?
Check C139 about
8dBm?
Check the freq. at
OSC500 : 19.2MHz ?
WCDMA 2100 Transmitter is O.K?
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
END
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CHECK soldered
RFS100, L121,L101,C107,C159
resolder or change
FEM100
resolder or change
L112,DPX101,C163,L123,C150,
PAM101
resolder or change
C139,F102,L113,L126
change or resolder
OSC500
resolder or change
U300
8-52