Samsung SGH-D428 service manual free download

File name Samsung SGH-D428 service manual.pdf

GSM TELEPHONE SGH-D428 GSM TELEPHONE CONTENTS 1. Specification 2. Flow Chart of Troubleshooting 3. Exploded Views and Parts List 4. Electrical Parts List 5. Block Diagrams 6. PCB Diagrams Samsung Electronics Co.,Ltd. Dec. 2004 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No.: GH68-06337A BASIC. 1. SGH-D428 Specification 1. GSM General Specification GSM900 E G S M 9 00 DCS1800 PC S1900 Ph ase 1 Ph ase 2 Ph ase 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-D428 Specification 2. GSM TX power class TX Power GSM900 TX Power