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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 . S G H - E3 5 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
PC S1 9 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 1 8 5 0 ~1 9 1 0
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 1 9 3 0 ~1 9 9 0
0~124 &
A RF C N r a n g e 1 ~1 2 4 5 1 2 ~8 8 5 5 1 2 ~8 1 0
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 8 0 MH z
Mod. Bit rate 270.833kbps 2 7 0 .8 3 3 k b p s 270.833kbps 2 7 0 .8 3 3 k b p s
/ Bi t Pe r i o d 3.692us 3 .6 9 2 u s 3.692us 3 .6 9 2 u s
Ti me Sl o t Pe r i o d 576.9us 5 7 6 .9 u s 576.9us 5 7 6 .9 u s
/ F r am e P er io d 4 .6 1 5 m s 4 .6 1 5 m s 4 .6 1 5 m s 4 .6 1 5 ms
Mo d u l a ti o n 0 .3 G MS K 0 .3 G MS K 0 .3 GM SK 0 .3 GM SK
M S P o we r 3 3 d Bm ~5 d B m 3 3 d Bm ~5 d B m 3 0 d B m ~0 d B m 3 0 d B m~0 d B m
Po w er C l as s 5 p cl ~ 1 9 p c l 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Se n si t iv i t y -102dBm - 1 0 2 d Bm -100dBm -100dBm
TDM A M u x 8 8 8 8
C el l Ra d iu s 3 5 Km 3 5 Km 2 Km -
1- 1
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Specification
2. GSM TX power class
TX Power TX Power TX Power
GSM900 DCS1800 PCS1900
control level control level control level
5 33