Trouble Shooting; Rf Component - LG U300 Service Manual

4. TROUBLE SHOOTING

4. TROUBLE SHOOTING

4.1. RF Component

X100
U105
U101
U100
U103
RF component (Bottom)
Reference
X100
U105 WCDMA Receiver IC(RFR6250)
U101 GSM/WCDMA Transceiver IC
U100 Antenna Switch Module
U103
ANT100
Description
VCTCXO(19.2MHz)
Bluetooth ANT
ANT contact pad
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Reference
FL104 WCDMA Duplexer
U104 WCDMA PAM
IS100
SW100
U102
ANT102 ANT contact pad
FL104
U104
IS100
SW100
ANT100
ANT102
U102
Description
Isolator
ANT S/W
GSM PAM