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MITs TELEPHONE
SGH-D720




MITs TELEPHONE CONTENTS


1. Specification
2. Flow Chart of Troubleshooting

3. Exploded Views and Parts List

4. Electrical Parts List

5. PCB Diagrams

6. Block Diagrams
1. SGH-D720 Specification

1-1. GSM General Specification


G S M9 0 0 E GS M 9 0 0 D CS 1 80 0
PC S1 9 0 0
Ph ase 1 Ph as e 2 P ha se 1

F r eq . B an d [M Hz] 8 9 0~ 91 5 880~915 1 71 0 ~ 1 7 8 5 1 8 5 0~ 1 91 0
U p l i n k /D ow nl i n k 9 3 5~ 96 0 925~960 1 80 5 ~ 1 8 8 0 1 9 3 0~ 1 99 0

0~124 &
A RF C N r a n ge 1 ~ 1 24 51 2 ~ 8 8 5 5 1 2~ 8 10
9 7 5 ~ 1 0 23

Tx /R x sp aci n g 45 M Hz 4 5M Hz 9 5 MH z 80 M Hz


M od . Bi t r at e/ 27 0 .8 3 3 k bp s 2 7 0. 83 3 k b ps 2 7 0 .8 33 k b p s 2 70 .8 3 3 k b ps
Bi t Pe r i od 3 .6 92 u s 3 .6 9 2u s 3 .6 9 2 u s 3 .6 92 u s

Ti m e Sl o t
5 76 .9 u s 5 7 6. 9u s 5 7 6 .9 u s 5 76 .9 u s
Per i o d/ F r am e
4 .6 1 5 m s 4 .6 15 m s 4 .6 1 5 m s 4. 61 5 m s
Pe r i od

Mo du l at i on 0 .3 GM SK 0 .3 G MS K 0. 3G M SK 0 .3 G MS K


MS Po w er 3 3 d Bm ~ 13 d Bm 33 d Bm ~ 5 dB m 3 0d B m ~ 0 d Bm 3 0 d Bm ~ 0d B m


P ow er Cl a ss 5 pcl ~ 1 5p cl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl

Sen si t i v i t y -1 0 2 dB m - 10 2 d Bm - 1 00 d Bm -1 0 0 dB m

T DM A M u x 8 8 8 8

Ce l l Rad i u s 3 5 Km 35 K m 2 Km -




1-1
SGH-D720 Speclflcation




1-2. GSM Tx Power Class


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


5 33