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Samsung SGH-ZV50 service manual


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                 UMTS TELEPHONE
                 SGH-ZV50




UMTS 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
                                        CONTENTS


1. Safety Precautions
  1-1. Repair Precaution .........................................................................1-1
  1-2. ESD(Electrostatically Sensitive Devices) Precaution ..........................1-2


2. Specification
  2-1. GSM General Specification .............................................................2-1
  2-2. GSM Tx Power Class .....................................................................2-2


3. Product Function

4. Array course control
 Software Downloading
  4-1. Downloading Binary Files ..............................................................4-2
  4-2. Pre-requsite for Downloading ........................................................4-2
  4-3. S/W Downloader Program .............................................................4-3


5. Exploded View and Parts List
  5-1. Cellular phone Exploded View .......................................................5-1
  5-2. Cellular phone Part list .................................................................5-2


6. MAIN Electrical Parts List

7. Block Diagrams
  7-1. RF Solution Block Diagram.............................................................7-1
  7-2. BaseBand Solution Block Diagram...................................................7-2


8. PCB Diagrams
                                           CONTENTS




9. Flow Chart of Troubleshooting
  9-1. Power On.....................................................................................9-1
  9-2. Initial ..........................................................................................9-4
  9-3. Charging Part................................................................................9-5
  9-4. Sim Part......................................................................................9-7
  9-5. Microphone Part ...........................................................................9-9
  9-6. Speaker Part(Melody)..................................................................9-11
  9-7. Key Data Input...........................................................................9-13
  9-8. Earphone Part.............................................................................9-14
  9-9. LCD Part.....................................................................................9-16
  9-10. Key Back Light(Main).................................................................9-17
  9-11. Camera Part.............................................................................9-19
  9-12. GSM900 Receiver......................................................................9-20
  9-13. GSM900 Transmitter..................................................................9-21
  9-14. DCS Receiver............................................................................9-22
  9-15. DCS Transmitter........................................................................9-23
  9-16. PCS Receiver............................................................................9-24
  9-17. PCS Transmitter........................................................................9-25
  9-18. WCDMA Receiver.......................................................................9-26
  9-19. WCDMA Transmitterr.................................................................9-27

10. Reference data
 10-1. Reference Abbreviate..................................................................10-1


11. Disassembly and Assembly Instructions
  11-1. Disassemby...............................................................................11-1
  11-2. Assembly..................................................................................11-4
1. Safety Precautions

1-1. Repair Precaution

 Repair in Shield Box, during detailed tuning.
  Take specially care of tuning or test,
  because specipicty 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            DCS1 800           PCS1 900                  W- CDMA


  Fr eq. Band [MHz]           880~9 15          1710~1 785         1850~1 910                1 920~19 80
  Up link/ Do wnl ink         925~9 60          1805~1 880         1930~1 990                2 110~21 70

                              0~1 24 &                                                     UL:9 612~98 88
   ARFCN ran ge                                  512~8 85            512~8 10
                             975~1 023                                                    DL:10 562~10 838

   Tx/Rx spacin g              45MHz              95MHz               80MHz                   190MHz


   Mod . Bit r ate/         270.8 33kbps       270.8 33kbps       270.8 33kbps                3. 84Mcps
    Bi t Peri od              3.69 2us           3.69 2us           3.69 2us


      Tim e Slot              576. 9us           576. 9us            576. 9us        F rame l ength : 10ms
Per iod/ Fra me Per iod       4 .615ms           4 .615ms            4 .615ms        Slot lengt h : 0. 667ms

               GSM/           0.3G MSK           0.3G M SK          0.3G MSK
               G PR S
                                                                                                QPSK
Modu lation
                                                                                               HQPSK
               EDG E            8PSK               8PSK                8PSK


     MS Power              33dBm~ 5dBm 30dBm~ 0dBm 30dBm~ 0dBm                            2 4dBm ~ - 50dBm

                                 4                  1                   1                         3
    Po wer Class
                            (max +33dBm)       (max +30dBm)        (max +30dBm)             (max +24dBm)

     Sen sitivity             - 102dBm           - 100dBm            - 100dBm                - 106.7 dBm

     TDMA M ux                     8                  8                  8

     Cell Radius                35Km                2Km                2Km                      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                              TX Power
                    GSM900                                 DCS1800                        PCS1900
    control level                    control level                        control level

           5        33



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