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GSM TELEPHONE
SGH-X120




GSM TELEPHONE CONTENTS


1. Specification

2. Flow Chart of Troubleshooting

3. Exploded Views and Parts Lis

4. Electrical Parts List

5. Block Diagram

6. PCB Diagrams
1. SGH-X120 Specification

1. GSM General Specification


GSM900 EGSM 900 DCS1800
Phase 1 Phase 2 Phase 1

F r e q . Ba n d [ M H z ] 8 90~ 915 880 ~9 15 171 0~1 785
U plin k/D o wn link 9 35~ 960 925 ~9 60 180 5~1 880

0~ 12 4 &
A RF C N r an g e 1~1 24 51 2~8 85
975~ 102 3

Tx / Rx s pac in g 4 5M Hz 45MHz 95 MHz


M od . Bit r a te / 2 70. 833 kb ps 27 0. 833k bp s 27 0. 833k bp s
Bit P e r io d 3. 69 2us 3. 692u s 3. 692 us


Ti me S lo t 57 6. 9us 576. 9u s 5 7 6 .9 u s
P e ri od / Fr am e P e ri od 4. 615 ms 4. 615m s 4. 615m s


M o du l ati on 0 .3 GM S K 0 . 3 G M SK 0 . 3 G M SK


M S P o we r 33 dBm ~ 13d Bm 33d Bm ~5d Bm 30d Bm ~0 dBm

P o we r C las s 5p cl ~ 1 9pc l 5pcl ~ 19pcl 0pcl ~ 15pcl

Sensitivity -10 2dB m -102 dBm -100 dBm

T DM A M u x 8 8 8

Ce l l Rad iu s 35Km 35K m 2Km




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SGH-X120 Specification




2. GSM TX power class


TX Power TX Power
GSM900 DCS1800
control level control level

5 33