LG GT500 Service Manual page 166

①
Test Program Script
1. GSM850/EGSM Rx
SWRX=3,190,5,1024,1 (GSM850)
SWRX=0,65,5,1024,1
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
(Bottom)
Figure 4-46. Test Points of GSM/DCS/PCS Rx
(EGSM)
v Agilent 8960 Setting
CW Mode
GSM850 : -50dBm@Ch190(881.6MHz)
EGSM : -50dBm@Ch65(948MHz)
DCS : -50dBm@Ch700(1842.8MHz)
PCS : -50dBm@ch700(1967.8MHz)
v Oscilloscope Setting
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4. TROUBLE SHOOTING
(Top)
GSM Transceiver
RF3300
U111
GSM8 EGSM DCS PCS
50 Rx Rx Rx Rx
GSM/EDGE
PAM
U101
2. DCS/PCS Rx
SWRX=2,700,0,1024,1 (DCS)
SWRX=1,700,0,1024,1 (PCS)
②
LGE Internal Use Only