Rf Component - LG KF750 Service Manual

4. TROUBLE SHOOTING

4.14 RF Component

X100
U102
FL102,FL101,FL100
U100
Reference
X100
U100
U102 GSM / EDGE Transceiver(RF3000)
FL100
FL101
FL102
SW100
SW101
LGE Internal Use Only
(Top)
Figure 4-1. RF component
Description
26MHz Crystal
GSM900/DCS/PCS/EDGE PA
+ Ant. SW
DCS Rx SAW Filter
PCS Rx SAW Filter
GSM900 Rx SAW Filter
RF Test Connector
Antenna Connector
Reference
U200
U201
U202
U203
N200
IS200
FL200
FL201
FL202
Copyright © 2008 LG Electronics. Inc. All right reserved.
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SW100
SW101
(Bottom)
U203
FL200
FL201
U202
U200
N200
U201
IS200
FL202
Description
WCDMA PA
WCDMA DC/DC Converter
WCDMA Power Detector
WCDMA Transceiver(RF3100)
WCDMA Power Coupler
WCDMA Isolator
WCDMA Rx SAW Filter
WCDMA Tx SAW Filter
WCDMA Duplexer
Only for training and service purposes