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GS M T ELEP H O N E




Manual
SERVICE
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
ELECTRONICS
1 . SGH - X4 6 0 S p e c if ic a t io n


1. GSM General Specification

GS M9 0 0 E GS M 9 0 0 DC S 1 8 0 0
Ph a se 1 Ph a se 2 P h as e 1

F r eq . B a n d [M Hz ] 8 9 0 ~9 1 5 8 8 0 ~9 1 5 1 7 1 0 ~1 7 8 5
Up l in k / Do w n li n k 9 3 5 ~9 6 0 9 2 5 ~9 6 0 1 8 0 5 ~1 8 8 0

0~124 &
A RF C N r a n g e 1 ~1 2 4 5 1 2 ~8 8 5
9 7 5 ~1 0 2 3

T x /R x s p ac in g 4 5 MHz 4 5 MHz 9 5 M Hz


Mo d . B i t r at e/ 270.833kbps 2 7 0 .8 3 3 k b p s 270.833kbps
Bi t Pe r i o d 3.692us 3 .6 9 2 u s 3.692us


Ti me Sl o t 576.9us 5 7 6 .9 u s 576.9us
P er io d / F r am e P er i o d 4 .6 1 5 m s 4 .6 1 5 m s 4 .6 1 5 m s


Mo d u l a ti o n 0 .3 G MS K 0 .3 G MS K 0 .3 GM SK


M S P o we r 3 3 d Bm ~1 3 d B m 3 3 d Bm ~5 d B m 3 0 d B m ~0 d B m

Po w er C l as s 5 p cl ~ 1 5 p c l 5pcl ~ 19pcl 0pcl ~ 15pcl

Se n si t iv i t y -102dBm - 1 0 2 d Bm -100dBm

TDM A M u x 8 8 8

C el l Ra d iu s 3 5 Km 3 5 Km 2 Km




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Specification




2. GSM TX power class

TX Power TX Power
GSM900 DCS1800
control level control level

5 33