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GSM TELEPHONE
SGH-X400




Manual
SERVICE
GSM TELEPHONE CONTENTS


1. Specification
2. Exploded Views and Parts List
3. Electrical Parts List
4. Flow Chart of Troubleshooting
5. Block Diagrams
6. PCB Diagrams
1. SGH-X400 Specification

1. GSM General Specification

GSM900 EGSM 900 DCS1800
PCS1900
Phas e 1 Phas e 2 Phas e 1

Fr eq. Band[MHz] 890~915 880~915 1710~1785 1850~1910
Uplink/ Downli nk 935~960 925~960 1805~1880 1930~1990

0~124 &
ARFCN r ange 1~124 512~885 512~810
975~1023

Tx/ Rx s paci ng 45MHz 45MHz 95MHz 80MHz

Mod. Bit rate/ 270.833kbps 270.833kbps 270.833kbps 270.833kbps
Bit Period 3.692us 3.692us 3.692us 3.692us


Ti me Slot 576.9us 576.9us 576.9us 576.9us
Peri od/Fr ame Per iod 4.615ms 4.615ms 4.615ms 4.615ms


Modulati on 0 . 3 GM S K 0.3GMSK 0 . 3 GM S K 0.3GMSK


MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm

Power Cl a ss 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl

Sensit ivit y - 102dBm -102dBm - 100dBm - 100dBm

TDMA Mux 8 8 8 8

Cell Radius 35Km 35Km 2Km -




1-1
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SGH-X400 Specification




2. GSM TX power class

TX Power TX Power TX Power
GSM900 DCS1800 PCS1900
control level control level control level

5 33