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>> Download Samsung SGH-C120 service manual documenatation <<

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                GSM TELEPHONE
                SGH-C120




GSM 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
This Service Manual is a property of Samsung Electronics Co.,Ltd.    Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.                                         Code No.: GH68-08501A
                                                                                2005. 11. Rev.1.0
1. SGH-C120 Specification

1-1. GSM General Specification

                           GSM900              EGSM 900               DCS1800
                           Phase 1              Pha se 2              Phase 1

Freq. Ban d [M Hz ]        89 0~ 91 5           88 0~ 91 5          1 71 0~ 1 78 5
Upl in k/Downl in k        93 5~ 96 0           92 5~ 96 0          1 80 5~ 1 88 0

                                                0 ~ 1 24 &
  A RF C N ra n g e          1 ~ 1 24                                 51 2~8 85
                                               9 75 ~ 10 23

 Tx/Rx spaci ng              45 MHz               45 MHz                95 MHz


 Mod. Bit rat e/         270.833kbp s         2 70 . 8 33 k b ps   270.833kbp s
   Bit Period              3.692us               3.692us             3.692us

     Tim e Sl ot
                           576.9us               576.9us              576.9us
  P eri od /F rame
                           4. 61 5m s            4 .6 15 m s          4. 61 5ms
       Peri od

   Modu lat ion            0. 3GM SK            0. 3GM S K            0. 3GM SK


    M S Power          3 3d B m ~ 13 dBm 33dBm~5dBm                3 0d B m ~ 0 d Bm

  P ow e r Cl a ss      5pcl ~ 15pcl           5pcl ~ 19pcl          0pcl ~ 15pcl

   S e nsi ti vit y        -102dBm              - 10 2d B m           -100dBm

   TDM A Mu x                   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-C120 Specification




1-2. GSM TX power class

     TX Power                          TX Power
                     GSM900                             DCS1800
    control level                     control level

          5          33

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