Samsung SGH-D720 service manual free download

File name Samsung SGH-D720 service manual.pdf

MITs TELEPHONE SGH-D720 MITs 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-D720 Specification 1-1. GSM General Specification G S M9 0 0 E GS M 9 0 0 D CS 1 80 0 PC S1 9 0 0 Ph ase 1 Ph as e 2 P ha se 1 F r eq . B an d [M Hz] 8 9 0~ 91 5 880~915 1 71 0 ~ 1 7 8 5 1 8 5 0~ 1 91 0 U p l i n k /D ow nl i n k 9 3 5~ 96 0 925~960 1 80 5 ~ 1 8 8 0 1 9 3 0~ 1 99 0 0~124 & A RF C N r a n ge 1 ~ 1 24 51 2 ~ 8 8 5 5 1 2~ 8 10 9 7 5 ~ 1 0 23 Tx /R x sp aci n g 45 M Hz 4 5M Hz 9 5 MH z 80 M Hz M od . Bi t r at e/ 27 0 .8 3 3 k bp s 2 7 0. 83 3 k b ps 2 7 0 .8 33 k b p s 2 70 .8 3 3 k b ps Bi t Pe r i od 3 .6 92 u s 3 .6 9 2u s 3 .6 9 2 u s 3 .6 92 u s Ti m e Sl o t 5 76 .9 u s 5 7 6. 9u s 5 7 6 .9 u s 5 76 .9 u s Per i o d/ F r am e 4 .6 1 5 m s 4 .6 15 m s 4 .6 1 5 m s 4. 61 5 m s Pe r i od Mo du l at i on 0 .3 GM SK 0 .3 G MS K 0. 3G M SK 0 .3 G MS K MS Po w er 3 3 d Bm ~ 13 d Bm 33 d Bm ~ 5 dB m 3 0d B m ~ 0 d Bm 3 0 d Bm ~ 0d B m P ow er Cl a ss 5 pcl ~ 1 5p cl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl Sen si t i v i t y -1 0 2 dB m - 10 2 d Bm - 1 00 d Bm -1 0 0 dB m T DM A M u x 8 8 8 8 Ce l l Rad i u s 3 5 Km 35 K m 2 Km - 1-1 SGH-D720 Speclflcation 1-2. GSM Tx Power Class TX Power TX Power TX Power GSM900 DCS1800 PCS1900 control level control level control level 5 33