Samsung SGH-X550 Service Manual
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Samsung SGH-X550 Service Manual

Samsung SGH-X550 Service Manual

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GSM TELEPHONE
GSM TELEPHONE
SGH-X550
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CONTENTS

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  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-X550 GSM TELEPHONE CONTENTS Safety Precautions Specification Operation Instruction and Installation Array course control Exploded View/Disassembly and Assembly Instructions MAIN Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting 10. Reference data...

  • Page 2: Safety Precautions

    ― 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. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 3 ― 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. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Specification

    2. Specification 2-1. GSM General Specification G SM 90 0 EG SM 9 00 DCS1800 PCS1900 Ph ase 1 Ph ase 2 Ph ase 1 Fr eq. 8 90~915 8 80~915 17 10~178 5 185 0~1910 Band[MHz] 9 35~960 9 25~960 18 05~188 0 193 0~1990 Uplin k/Down link...

  • Page 5: Gsm Tx Power Class

    Speclflcation 2-2. GSM Tx Power Class TX Power TX Power TX Power PCS1800 GSM900 DCS1800 control level control level control level 30±3 dBm 30±3 dBm 33±2 dBm 28±3 dBm 28±3 dBm 31±2 dBm 26±3 dBm 26±3 dBm 29±2 dBm 24±3 dBm 24±3 dBm 27±2 dBm 22±3 dBm...

  • Page 6: Operation Instruction And Installation

    ― WAP2.0 ― Speaker phone ― TFT 1.9" Main Display ― Dual Display VGA Camera Folder ― 16 Poly Melody ― E-mail client ― Bluetooth SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 7 Operation Instruction and Installation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 8: Array Course Control

    4. Array course control 4-1. Software Adjustments Serial Cable(CSA LL64151-A) Power Cable USB DATA CABLE (CSA LL11105 AWM) JIG BOX (GH80-01909A) JIG CABLE (GH39-00217A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 - if the binary file wanted, check only 'BIN' - if the tfs file wanted, check only 'TFS' - if all the files wanted, check 'BIN+TFS' SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Array course control 3 . Select the file(s) what you want to download SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 Array course control SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Exploded View/Disassembly And Assembly Instructions

    QFR01 QFU01 QKP01 QME01 QME16 QSP01 QLC01 QMO01 QMP01 QVK01 QMW01 QMI01 QAN05 QCR05 QCA01 QAN02 QHI01 QFL01 QRE01 QVO01 QCR31 QCR05 QBA01 QSC01 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Cellular Phone Parts List

    GH98-02694A QFR01 ASSY CASE-FRONT COVER GH98-02690B QIF01 PMO-COVER IF GH72-35231B QRF03 PMO-COVER EAR JACK V2 GH72-39434B QFL01 ASSY CASE-FOLDER LOWER GH98-02689B QHI01 ASSY HINGE-FOLDER GH98-03351A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 MPR-INSU TAPE SUB LCD GH74-27510A MPR-INSU TAPE GH74-27512A MPR-TAPE GH74-29296A MPR-TAPE MAIN FPCB GH74-30860A TAPE GASK GH74-32900A SPONGE-PBA IF GH74-32903A TAPE-FPCB HOLE MASK GH74-33011A TAPE-LED MASKING GH74-33166A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 15: Disassembly And Assembly Instructions

    2) Disassemble the PBA from the FRONT ASS'Y. 1) Be careful not to make scratch and damage to 1) Be careful not to damage F-PCBs. (Volume key, LCD, MIC) the LCD F-PCB. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! 2) Be careful not to damage F-PCBs and Wire. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 1) Be careful not to make scratch and molding damage! 2) Be careful not to damage F-PCBs. 2) Be careful not to damage the LCD module. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 1) Be careful not to make scratch and molding damage! 2) Arrange Wires clearly as above picture is shown. 2) Be careful not to damage the CAMERA F-PCB. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 1) Be careful not to make scratch and molding damage. 1) Be careful not to make scratch and molding damage. 2) Be careful not to damage LCD F-PCB. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 1) Be careful not to make scratch and molding damage! 2) Be careful not to damage LOCKER. 2) Be careful not to damage LOCKER. 3) Use 1.3 ± 0.1 Kgf·Cm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 Exploded View/Disassembly&Assembly Instructions 5-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 22: Main Electrical Parts List

    2203-000812 C205 C-CER,CHIP 2203-000812 C206 C-CER,CHIP 2203-000812 C207 C-CER,CHIP 2203-006048 C209 C-CER,CHIP 2203-002668 C210 C-CER,CHIP 2203-000278 C211 C-CER,CHIP 2203-000278 C212 C-CER,CHIP 2203-000489 C214 C-CER,CHIP 2203-002668 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 2203-006257 C523 C-CER,CHIP 2203-000627 C524 C-CER,CHIP 2203-005482 C526 C-CER,CHIP 2203-006137 C600 C-CER,CHIP 2203-006048 C601 C-CER,CHIP 2203-000254 C602 C-CER,CHIP 2203-000386 C603 C-CER,CHIP 2203-000254 C604 C-CER,CHIP 2203-005052 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 2203-005683 C821 C-CER,CHIP 2203-005683 C822 C-CER,CHIP 2203-005683 D700 DIODE-TVS 0406-001150 D702 DIODE-TVS 0406-001231 D703 DIODE-TVS 0406-001231 D704 DIODE-TVS 0406-001231 D705 DIODE-TVS 0406-001231 D706 DIODE-TVS 0406-001231 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 0601-002233 LED702 0601-002233 OSC100 OSCILLATOR-VCTCXO 2809-001307 OSC300 CRYSTAL-SMD 2801-004560 PAM200 IC-POWER AMP 1201-002485 Q400 FET-SILICON 0505-002088 R100 INDUCTOR-SMD 2703-002313 R101 R-CHIP 2007-007316 R102 R-CHIP 2007-000982 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 2007-000171 R418 R-CHIP 2007-007014 R502 R-CHIP 2007-007100 R503 R-CHIP 2007-003000 R504 R-CHIP 2007-000171 R505 R-CHIP 2007-000166 R508 R-CHIP 2007-001339 R509 R-CHIP 2007-000758 R510 R-CHIP 2007-000162 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 2007-000162 RFS200 CONNECTOR-COAXIAL 3705-001358 SIM500 CONNECTOR-CARD EDGE 3709-001447 SW600 IC-HALL EFFECT S/W 1009-001018 TA200 C-TA,CHIP 2404-001474 TA507 C-TA,CHIP 2404-001381 TA606 C-TA,CHIP 2404-001381 TA700 C-TA,CHIP 2404-001377 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 1405-001183 V809 VARISTOR 1405-001161 V810 VARISTOR 1405-001161 V811 VARISTOR 1405-001161 V812 VARISTOR 1405-001161 X500 CRYSTAL-SMD 2801-004373 ZD700 DIODE-ZENER 0403-001547 ZD701 DIODE-TVS 0406-001201 ZD705 DIODE-TVS 0406-001254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 Main Electrical Parts List SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 30: Block Diagrams

    7. Block Diagrams 7-1. RF Solution Block Diagram MV3015 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 31: Sub Lcd

    ISL6294 MAIN LCD CHARGE IC (CAMERA) TFT 1.9” LD(0:7) SUB LCD 4-Gray 1.0” MEMORY Li-ion Battery CAMERA (standard) NOR FLASH 128M DAUL LDO SDRAM 64M SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 32: Pcb Diagrams

    8. PCB Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 PCB Diagrams Bottom SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 34: Flow Chart Of Troubleshooting

    Check the VDD1(Core voltage)circuit = 1.8V? Check for the clock at C110 Check the clock generation circuit (related to U100) = 13MHz Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 Flow Chart of Troubleshooting 9-2. Initial Initial Failure R301 (RSTON) ="H"? Check the circuit related to reset Check the 16bit data signal & memory CE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 38: Charging Part

    1 > 4.9V V_EXT_CHARGE U608 pin 4 = "L"? Resolder or replace U608 Check the U608 pin 8 Resolder or replace U608 ≒ 4.2V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 40: Sim Part

    Check the Clock pin3 of SIM500 in a few second After SIM card insert, Replace PBA SIM500 pin 2 = "H(SIM_RST)"? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 42: Microphone Part

    Replace PM IC or PBA Check the voltage of MIC BIAS (2.15V). Check the circuit Resolder the Surrounding capacitors from EAR700 to MIC Check the MIC Replace the MIC SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 Flow Chart of Troubleshooting 9-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Flow Chart of Troubleshooting 9-6. Speaker Part(Melody) Speaker does not work U707 PIN 1 ='H'? Replace UCP300 Is Speaker working? Change the Speaker 9-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 Flow Chart of Troubleshooting 9-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 46: Key Data Input

    Check the Dome sheet & Key Pad pushed, is it displayed on LCD? When one of the keys is Replace the PBA pushed, KBIO signal is OK? 9-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 47: Receiver Part

    Flow Chart of Troubleshooting 9-8. Receiver Part Receiver does not work Resolder UCP300 or change PBA Is Receiver working? Replace the Receiver Is Receiver working? 9-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 U2(LCD MODULE) PIN 2 = Resolder UCP300 or change PBA Check the U1 & the related circuit U2 PIN 8 = 3.6V ? Replace the LCD Module 9-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 Flow Chart of Troubleshooting 9-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 50: Key Back Light

    Flow Chart of Troubleshooting 9-10. Key Back Light Main Key LED does not work Check the UCP300 related to U700 pin8 = H ? "KEY_LED_ON" 9-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 51: Camera Part

    Check the Camera Reconnect the camera module connector on LCD module. C406 = 26MHz? Check U100related to 26Mhz Is there another problem? Replace the camera module 9-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 Flow Chart of Troubleshooting 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 53: Gsm Receiver

    30 >= -70dBm Check & Resolder U101 pin 6,7,8,9 U101 pin U101, OSC100 >= 1V 10,15>=2.8V RF26MHz, RF PSU Part Resolder U101 Check U500 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 54: Gsm Transmitter

    Resolder L111,C115,C116 15dB Check & Resolder RFOL U101 pin 6,7,8,9 U101 pin 10,15 signal, RF13MHz, >= 1V >=2.8V RF PSU Part Resolder U101 Check U500 9-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 55: Dcs Receiver

    36 >= -70dBm Check & Resolder U101 pin 6,7,8,9 U101 pin 10,15 U100, OSC100 >= 1V >=2.8V RF26MHz, RF PSU Part Resolder U101 Check U500 9-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 56: Dcs Transmitter

    Resolder C127,C128,L119 15dB Check & Resolder RFOH U101 pin 10,15 U101 pin 6,7,8,9 signal, RF13MHz, >=2.8V >= 1V RF PSU Part Resolder U101 Check U500 9-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 57: Pcs Receiver

    33 >= -70dBm Check & Resolder 101 pin 6,7,8,9 U101 pin 10,15 U100, OSC100 >= 1V >=2.8V RF26MHz, RF PSU Part Resolder U101 Check U500 9-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 58: Pcs Transmitter

    <= 15dBm Check & Resolder RFOH U101 pin 6,7,8,9 U101 pin 10,15 signal, RF13MHz, >= 1V >=2.8V RF PSU Part Resolder U101 Check U500 9-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Flow Chart of Troubleshooting 9-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 Flow Chart of Troubleshooting 9-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 61 Flow Chart of Troubleshooting 9-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 62: Reference Data

    ― QPSK : Quadrature Phase Shift Keying ― RS : Reed-Solomon ― SI : Service Information ― TDM : Time Division Multiplexing ― TS : Transport Stream 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 63 Reference data 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 64 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. 05 Rev.1.0...

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