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Samsung SGH-C160M service manual


>> Download Samsung SGH-C160M service manual documenatation <<

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                GSM TELEPHONE
                SGH-C160M




GSM TELEPHONE                     CONTENTS


                  1.    Safety Precautions

                  2.    Specification

                  3.    Operation Instruction and
                        Installation

                  4.    Array course control

                  5.    Exploded View/Disassembly
                        and Assembly Instructions

                  6.    MAIN Electrical Parts List

                  7.    Block Diagrams

                  8.    PCB Diagrams

                  9.    Flow Chart of Troubleshooting

                  10.   Reference data
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


                                                   EG SM 900                               DCS1800



      Fr eq. Band[ MHz]                             880 ~915                              1710 ~1785
      Uplink/Downlink                               925 ~960                              1805 ~1880



        ARFCN rang e                         0~124 & 975 ~1023                             512 ~885



        Tx/ Rx spacing                                45 MHz                                95 MHz



        Mod. Bit rat e/                           270. 833kbps                            270. 833kbps
         Bi t Pe rio d                              3. 692us                                3. 692us


   T ime Slot Per iod/ Fra me                        576 .9us                               576 .9us
            Period                                   4.61 5ms                               4.61 5ms



          Modu lation                               0. 3GMSK                               0. 3GMSK



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



                                                       4                                       1
         Power Cl ass
                                                  (max +33dBm)                            (max +30dBm)



          Sensitivity                               - 102d Bm                              - 100d Bm



          T DM A M u x                                   8                                     8



         Cell Ra dius                                 35 Km                                  2 Km




                                                         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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