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Samsung SGH-C180 service manual


>> Download Samsung SGH-C180 service manual documenatation <<

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                GSM TELEPHONE
                SGH-C180




GSM TELEPHONE                     CONTENTS


                  1.    Safety Precautions

                  2.    Specification

                  3.    Product Function

                  4.    Array course control

                  5.    Exploded View and Parts List

                  6.    MAIN Electrical Parts List

                  7.    Block Diagrams

                  8.    PCB Diagrams

                  9.    Flow Chart of Troubleshooting

                  10.   Reference data

                  11.   Disassembly and Assembly
                        Instructions
       GSPN (Global Service Partner Network)
                       Country                                            Web Site
       North America                                       service.samsungportal.com
       Latin America                                       latin.samsungportal.com
       CIS                                                 cis.samsungportal.com
       Europe                                              europe.samsungportal.com
       China                                               china.samsungportal.com
       Asia                                                asia.samsungportal.com
       Mideast & Africa                                    mea.samsungportal.com




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.                                                            2007. 08 Rev.1.0
1. Safety Precautions

1-1. Repair Precaution

   Repair in Shield Box, during detailed tuning.
     Take specially care of tuning or test, because the specification of cellular phone is sensitive for
    surrounding interference(RF noise).


   Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by
    the influence of magnetic force.


   Surely use a standard screwdriver when you disassemble this product, otherwise screw will be
    worn away.


   Use a thicken twisted wire when you measure level.
     A thicken twisted wire has low resistance, therefore error of measurement is few.


   Repair after separate Test Pack and Set because for short danger (for example an
     overcurrent and furious flames of parts etc) when you repair board in condition of
     connecting Test Pack and tuning on.


   Take specially care of soldering, because Land of PCB is small and weak in heat.


   Surely tune on/off while using AC power plug, because a repair of battery charger is
     dangerous when tuning ON/OFF PBA and Connector after disassembling charger.


   Don't use as you pleases after change other material than replacement registered on SEC System.
    Otherwise engineer in charge isn't charged with problem that you don't keep this rules.




                                                      1-1
                       SAMSUNG Proprietary-Contents may change without notice
                        This Document can not be used without Samsung's authorization
Safety Precautions




1-2. ESD(Electrostatically Sensitive Devices) Precaution

Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD
 (Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.
 You can prevent from ESD damage by static electricity.


    Remove static electricity remained your body before you touch semiconductor or parts with
      semiconductor. There are ways that you touch an earthed place or wear static electricity
      prevention string on wrist.


    Use earthed soldering steel when you connect or disconnect ESD.


    Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by
      static electricity.


    Don't unpack until you set up ESD on product. Because most of ESD are packed by box and
      aluminum plate to have conductive power,they are prevented from static electricity.


    You must maintain electric contact between ESD and place due to be set up until ESD is
      connected completely to the proper place or a circuit board.




                                                           1-2
                            SAMSUNG Proprietary-Contents may change without notice
                             This Document can not be used without Samsung's authorization
2. Specification

2-1. GSM General Specification


                                                EGSM 900                                   DCS1800


     Fr eq. Band [MHz]                            880 ~915                                 1710~1 785
     Up link/ Do wnl ink                          925 ~960                                 1805~1 880



       ARFCN ran ge                        0~124 & 975 ~1023                                512~8 85



       Tx/Rx spacin g                               45 MHz                                  95MHz



       Mod . Bit r ate/                         270. 833kbps                              270.8 33kbps
        Bi t Peri od                              3. 692us                                  3.69 2us


  Time Slot Per iod /Fr ame                       576 .9us                                  576. 9us
          Per iod                                 4.61 5ms                                  4 .615ms



        Mo dulat ion                              0. 3GMSK                                 0.3G MSK



         MS Power                              33dBm~5dBm                                 30dBm~ 0dBm



                                                     4                                         1
       Po wer Class
                                                (max +33dBm)                              (max +30dBm)



         Sen sitivity                             - 102d Bm                                - 100dBm



        TDM A M ux                                     8                                       8



        Cell Radius                                 35 Km                                     2Km




                                                         2-1
                        SAMSUNG Proprietary-Contents may change without notice
                          This Document can not be used without Samsung's authorization
Specification




2-2. GSM TX power class

         TX Power                                              TX Power
                                 GSM900                                                  DCS1800
        control level                                         control level

                5                33



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