Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung GSM Samsung SGH-E720 service manual
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GSM TELEPHONE
SGH-E720
GSM 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-E720 Specification
1-1. GSM General Specification
GSM900 EGSM 900 DCS1800
PCS1900
Phase 1 Pha se 2 Phase 1
Freq. Ban d [M Hz ] 89 0~ 91 5 88 0~ 91 5 1 71 0~ 1 78 5 18 50 ~1 91 0
Upl in k/Downl in k 93 5~ 96 0 92 5~ 96 0 1 80 5~ 1 88 0 19 30 ~1 99 0
0 ~ 1 24 &
A RF C N ra n g e 1 ~ 1 24 51 2~8 85 5 12 ~ 8 10
9 75 ~ 10 23
Tx/Rx spaci ng 45 MHz 45 MHz 95 MHz 8 0M H z
Mod. Bit rat e/ 270.833kbp s 2 70 . 8 33 k b ps 270.833kbp s 27 0. 83 3kb p s
Bit Period 3.692us 3.692us 3.692us 3. 69 2u s
Tim e Sl ot
576.9us 576.9us 576.9us 57 6. 9u s
P eri od /F rame
4. 61 5m s 4 .6 15 m s 4. 61 5ms 4. 61 5ms
Peri od
Modu lat ion 0. 3GM SK 0. 3GM S K 0. 3GM SK 0.3GMSK
M S Power 3 3d B m ~ 13 dBm 33dBm~5dBm 3 0d B m ~ 0 d Bm 30 d Bm ~0d Bm
P ow e r Cl a ss 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
S e nsi ti vit y -102dBm - 10 2d B m -100dBm -100dBm
TDM A Mu x 8 8 8 8
Cell Radiu s 35 Km 35 Km 2Km -
1-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
SGH-E720 Specification
1-2. GSM TX power class
TX Power TX Power TX Power
GSM900 DCS1800 PCS1900
control level control level control level
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