Samsung SGH-X640 service manual free download

File name Samsung SGH-X640 service manual.pdf

SAMSUNG Anycall SGH-X640 SAMSUNG Anycall 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 This Service Manual is a property of Samsung Electronics Co.,Ltd. Samsung Electronics Co.,Ltd. March. 2005 Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No.: GH68-06819A BASIC. 1 . 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 P C1 9 0 0 Ph a se 1 Ph a se 2 P h as e 1 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 m s 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 2 Km 1- 1 S