Samsung SGH-E250 User Manual
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Samsung SGH-E250 User Manual

Samsung cell phone user manual
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GSM TELEPHONE
GSM TELEPHONE
SGH-E250
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  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-E250 GSM TELEPHONE CONTENTS Safety Precautions Specification Product Function 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 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 4-1. Sofrware Adjustments...4-1 4-2. Sofrware Downloading ...4-2 5. Exploded View/Disassembly & Assembly Instructions 5-1.
  • Page 3 9. Flow Chart of Troubleshooting 9-1. Pown on...9-1 9-2. Initial...9-3 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. Receiver Part...9-14 9-9. Back Light(for Color Main LCD)...9-15 9-10. Key Back Light...9-17 9-11. Camera Part...9-19 9-12.

  • Page 4: 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 5: Esd(Electrostatically Sensitive Devices) Precaution

    ● 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 6: Specification

    2. Specification 2-1. GSM General Specification GSM900 Phase 1 Fr eq. 890~915 Band[MHz] 935~960 Uplin k/Down link ARF CN ra nge 1~124 T x/Rx spacing 45MHz Mo d. Bit r ate/ 270.833kbps Bit Period 3.692us Ti me Slo t 576.9us Pe rio d/Fr am e 4.615ms Per iod...

  • Page 7: Gsm Tx Power Class

    Speclflcation 2-2. GSM Tx Power Class TX Power GSM900 control level 33±2 dBm 31±2 dBm 29±2 dBm 27±2 dBm 25±2 dBm 23±2 dBm 21±2 dBm 19±2 dBm 17±2 dBm 15±2 dBm 13±2 dBm 11±3 dBm 9±3dBm 7±3 dBm 5±3 dBm TX Power DCS1800 control level...

  • Page 8: Product Function

    -WAP 2.0 / Java MIDP 2.0 -MP3, AAC, MP4, 3GPP Decoding -Video Recording and Messaging -GSM/GPRS Class 10 -Triple Band(GSM900/DCS,PCS) -64 Poly -Speaker Phone -Voice Clarity SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 Product Function SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 10: Array Course Control

    4. Array course control 4-1. Software Adjustments Test Jig (GH80-03306A) Test Cable (GH39-00499A) Serial Cable(CSA LL64151-A) Power Supply Cable SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 11: Software Downloading

    - 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 PNX5230.exe”...
  • Page 12 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 13 Array course control SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 14: Exploded View/Disassembly And Assembly Instructions

    QSP01 QMO01 QLC01 QME03 QFR01 QCW01 QCA05 QHI01 QCR17 QSC05 QSC06 QSD01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization QME02 QMP02 QMP01 QFL01 QVO01 QCR03 QBA01 QIF01 QKP01 QME01 QBR03 QMI03 QMI01...

  • Page 15: Cellular Phone Parts List

    QFR01 　 QFL01 　 QHI01 　 QIF01 　 QSD01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description INTENNA-SGH E250 ASSY CASE-BATTERY ASSY BRACKET-KEYPAD UNIT-CAMERA MODULE PMO-DECO MIRROR SCREW-MACHINE SCREW-MACHINE SCREW-MACHINE ASSY CASE-SLIDE UPPER...

  • Page 16: Sec Code

    MPR-ELEC TAPE MPR-TAPE LABEL MPR-INSU TAPE MPR-SPONGE MPR-TAPE S UPPER MPR-VINYL BOHOREAR MPR-VINYL BOHO MAIN STA SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Exploded View/Disassembly&Assembly Instructions Sec Code 6902-000634 GH44-01361B GH59-03848B GH68-02026A GH68-02026A...

  • Page 17: Disassembly & Assembly Instructions

    3) Detach the LCD Connector after slide down 1) Be careful of damaging F-PCB SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization 1) Remove the volumn Key 2) Disassemble the connector 1) Be careful of body damage and scretch...
  • Page 18 1) Remove the EMI tape 1) Disassemble the key-pad SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Exploded View/Disassembly&Assembly Instructions 1) Detach the Volumn Key Fpcb 2) Disassemble key-can from the point of...
  • Page 19 1) Be careful of body damage and scretch 2) Be careful of damaging F-PCB SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization 1) Match the hole of LOWER and FRONT holding up the slide...
  • Page 20 1) Be careful of body damage and scretch 2) Be careful of sticking between two sides tape and SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Exploded View/Disassembly&Assembly Instructions 1) Disassemble Sub Key Pad...
  • Page 21 1) Be careful of body damage and scretch 2) Be careful of damaging F-PCB SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization 1) Assemble Sub PBA inserting the bottom of the board 2) Assemble CAMERA, SPK, MOT after...
  • Page 22 1) Be careful of body damage and scretch SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Exploded View/Disassembly&Assembly Instructions 1) Screw down 4 screws 1) Be careful of body damage and scretch...
  • Page 23 1) Assemble the FPCB with main board 1) Be careful of damaging BGA components SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization 1) Attach the EMI tape 1) Check up whether tape color is same with SET color...
  • Page 24 2) Assemble the Key Connector 1) Be careful of damaging BGA components SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Exploded View/Disassembly&Assembly Instructions 1) Screw down 5screws 2) Attach RF Sheet,SCREW Cover of rear...
  • Page 25 Exploded View/Disassembly&Assembly Instructions 5-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 26: Main Electrical Parts List

    C222 C301 C302 C303 C304 C306 C307 C308 C309 C310 C312 C316 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description ANTENNA-CHIP BATTERY-LI(2ND) HEADER-BATTERY C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP...
  • Page 27 C503 C504 C505 C506 C511 C512 C513 C514 C515 C516 C517 C518 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP...
  • Page 28 HEADER-BOARD TO BOARD IFC500 SOCKET-INTERFACE L101 INDUCTOR-SMD L102 INDUCTOR-SMD L103 INDUCTOR-SMD L104 INDUCTOR-SMD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP...
  • Page 29 R306 R307 R308 R309 R311 R312 R313 R317 R318 R321 R322 R400 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD C-CER,CHIP BEAD-SMD INDUCTOR-SMD BEAD-SMD BEAD-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD...
  • Page 30 R610 R611 R612 R613 R614 R615 R617 R619 SIM400 CONNECTOR-CARD EDGE TA100 TA400 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP...
  • Page 31 UME301 VR600 ZD301 ZD302 ZD401 ZD500 ZD501 ZD502 ZD505 ZD506 ZD600 ZD601 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description C-TA,CHIP C-TA,CHIP C-TA,CHIP C-TA,CHIP C-TA,CHIP IC-TRANSCEIVER IC-POWER AMP IC-TRANSCEIVER C-CER,CHIP C-CER,CHIP R-CHIP...

  • Page 32: Block Diagrams

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

  • Page 33: Rf Block Diagram

    Block Diagrams 7-2. RF Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 34: Pcb Diagrams

    8. PCB Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 PCB Diagrams Bottom SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 36: Flow Chart Of Troubleshooting

    Check for the clock at C325 = 26MHz Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Change the Battery Check the PMU related to VINT Resolder OSC400 Check the related circuit...
  • 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: Initial

    UCP200 pin F1(R221) (RSTEXTn) ="H"? Check the 16bit data signal & memory CE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of Troubleshooting Check the circuit related to reset change UCP200...
  • 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: Charging Part

    U403 pin 34(AUX_ON) = "L"? Check the U403 pin 46 ≒ 1.4V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of Troubleshooting Check the circuit related to V_EXT_CHARGE Check the circuit related to...
  • 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: Sim Part

    After SIM card insert, SIM400 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 Flow Chart of Troubleshooting Resolder or replace U403 Check the Clock Replace PBA...
  • Page 43 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 44: Microphone Part

    Check F500 PIN 8 = ' H' ? Check the MIC SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of Troubleshooting Resolder MIC Resolder the C514, C520, R516, R519 Check the JACK_IN signal...
  • Page 45 Flow Chart of Troubleshooting 9-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 46: Speaker Part(Melody)

    U500 pin 15,17 ≒ 1.8V? Resolder U500 (When U500 operate) HDC600 pin 2,3 ≒ 1.8V? Resolder HDC600 (When U500 operate) 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 47 Flow Chart of Troubleshooting 9-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 48: Key Data Input

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

  • Page 49: Receiver Part

    Flow Chart of Troubleshooting 9-8. Receiver Part Receiver does not work Resolder UCP200 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 50: Back Light(For Color Main Lcd)

    Is LCD Contrast set on high Set LCD Contrast on high level level in the Menu? Resolder HDC600 or change PBA HDC600 PIN 21 = H ? 9-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 Flow Chart of Troubleshooting 9-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 52: Key Back Light

    9-10. Key Back Light Main Key LED does not work Check the U906 related to "VDD_KEY" U906 pin6 = "H"? U906 pin3 = 3.3V ? Change U906 9-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 Flow Chart of Troubleshooting 9-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 54: Camera Part

    HDC600 Pin21 = H? Resolder HDC600 or change PBA Check U102(pin8) related to C310 = 26MHz 26MHz and C131 Is there another problem? Replace the camera module 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 Flow Chart of Troubleshooting 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 56: Gsm Receiver

    24 ≥ -70dBm pin 25 ≥ -70dBm U101 pin 4,5,6,7 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder CN205,C103,L102 Check F100 pin9,pin11 = L Resolder C108, C109, L105 U101pin 16,17,29 32,36 ≥2.8V...

  • Page 57: Gsm Transmitter

    U103 pin7 ≥ -4dBm U102 pin 4,5,6,7 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder CN205,C103,L102 Check F100 pin11 = H (2.6V), Pin9 = L Resolder or Change L101,...

  • Page 58: Dcs Receiver

    22 ≥ -70dBm pin 23 ≥ -70dBm U101 pin 4,5,6,7 ≥ 0.2Vp_p Check UCP201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder CN205,C103,L102 Check F100 pin9,pin11 = L Resolder C104, C105, L104 U101 pin16,17,29, 32,36 ≥2.8V...

  • Page 59: Dcs Transmitter

    U103 pin1 ≤ -4dBm U101 pin 4,5,6,7 ≥ 0.2Vp_p Check UCP201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder CN205,C103,L102 Check F100 pin9 = H (2.6V), pin11 = L Resolder or Change...

  • Page 60: Pcs Receiver

    20 ≥ -70dBm pin 21 ≥ -70dBm U101 pin 4,5,6,7 ≥ 0.2Vp_p Check UCP201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder CN205,C103,L102 Check F100 pin9,pin11 = L Resolder C101, C102, L103 U101pin16,17,29, 32,36 ≥2.8V...

  • Page 61: Pcs Transmitter

    U103 pin1 ≤ -4dBm U101 pin 4,5,6,7 ≥ 0.2Vp_p Check UCP201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder CN205,C103,L102 Check F100 pin9 = H (2.6V), pin11 = L Resolder or Change...
  • Page 62 Flow Chart of Troubleshooting 9-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 63: Bluetooth Part

    ≥ 1.5V R304, U1126, U1125 ≥ 1.8V C323 ≥ 1.7V(32kHz) Check UCP201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder C316, C317,L303,C321 9-28 Resolder or replace L301,L301, ANT900 Resolder C318,C319 and check the PMU part...
  • Page 64 Flow Chart of Troubleshooting 9-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 65: Radio Part

    L505 ≥ 2V C537, L506, C538, C539 is OK? Check UCP201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Resolder R523, R525,C531, C532 Resolder C537, L506, C538, C539 9-30 Resolder R524, R529,C533 and Check PMU part...
  • Page 66 Flow Chart of Troubleshooting 9-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 67 Flow Chart of Troubleshooting 9-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 68: 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 69 Reference data 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 70 ⓒ 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. 2006. 12. Rev.1.0...

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