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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.14 RF Component
(Top)
U103
U102
(Bottom)
SW101
SW102
Figure 4-1. RF component
WCDMA850 Isolator
IS101
Antenna Connector
SW102
WCDMA1900 Isolator
IS102
WCDMA Directional Coupler
U101,104
RF3300 External LDO
U106
WCDMA Dual PA
U103
WCDMA1900 Tx SAW Filter
FL106
RF Test Connector
SW101
WCDMA850 Tx SAW Filter
FL105
GSM850/900 Rx SAW Filter
FL104
WCDMA1900 Duplexer
FL102
DCS/ PCS Dual Rx SAW Filter
FL103
WCDMA850 Duplexer
FL101
GSM/EDGE/WCDMA Transceiver
(RF3300)
U110
WCDMA DC/DC Converter
U107
GSM850/900/DCS/PCS PA
+ WCDMA Ant. SW
U102
WCDMA Power Detector
U105
26MHz Crystal
X101
Description
Reference
Description
Reference
U110
X101
FL102, FL103
U107
U103
U105
IS102
FL101
FL106
U101, U104
IS101
FL102
FL105
U106