Samsung SGH-X450 service manual free download

File name Samsung SGH-X450 service manual.pdf

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 - x 4 5 0 S p e c if ic a t io n 1. GSM General Specif ication 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 Mo d . B i t r at e/ 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 576.9us 5 7 6 .9 u s 576.9us 5 7 6 .9 u s 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 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 ~1 3 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 5 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 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization SG X450 Specification H- 2. GSM TX power class TX Power TX Power