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GSM TELEPHONE
SGH-X650
GSM TELEPHONE CONTENTS
1. Specification
2. Circuit Description
3. Exploded Views and Parts List
4. Electrical Parts List
5. Block Diagrams
6. PCB Diagrams
7. Flow Chart of Troubleshooting
8. Disassembly and
Assembly instructions
1. Specification
1-1. GSM General Specification
GSM900 DCS1800 PC1900
P ha se 1 Ph ase 1 Phas e 1
Fr eq. Band[MHz] 890~915 1710~1785 1850~1910
Uplink/ Downli nk 935~960 1805~1880 1930~1990
ARFCN r ange 1~124 512~885 512~810
Tx/ Rx s paci ng 45MHz 95MHz 80MHz
Mod. Bit rate/ 270.833kbps 270.833kbps 270.833kbps
Bit Period 3.692us 3.692us 3.692us
Ti me Slot 576.9us 576.9us 576.9us
Peri od/Fr ame Per iod 4.615ms 4.615ms 4.615ms
Modulati on 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Cl a ss 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensit ivit y -102dBm -100dBm - 100dBm
TDMA Mux 8 8 8
Cell Radius 35Km 2Km 2Km
1
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Specification
1-2. GSM TX power class
TX Power TX Power TX Power
GSM900 DCS1800 PCS1900
control level control level control level
5 33