Samsung SGH-F250 Service Manual
  1. Manuals
  2. Brands
  3. Samsung Manuals
  4. Cell Phone
  5. SGH-F250
  6. Service manual
Samsung SGH-F250 Service Manual

Samsung SGH-F250 Service Manual

Gsm telephone
Hide thumbs Also See for SGH-F250:
Table of Contents

Advertisement

Quick Links

See also: User Manual
GSM TELEPHONE
GSM TELEPHONE
SGH-F250
1.
2.
3.
4.
5.
6.
7.
8.
9.
CONTENTS

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SGH-F250 and is the answer not in the manual?

Questions and answers

Related Manuals for Samsung SGH-F250

Summary of Contents for Samsung SGH-F250

  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-F250 GSM TELEPHONE CONTENTS Safety Precautions Specification Product Function Array course control Exploded View and Parts list MAIN Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting 10. Reference data 11. Disassembly and Assembly Instructions...
  • Page 2 GSPN (Global Service Partner Network) Country North America Latin America Europe China Asia Mideast & Africa This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Web Site service.samsungportal.com latin.samsungportal.com...

  • Page 3: Safety Precautions

    1. Safety Precautions 1-1. Repair Precaution ● Repair in Shield Box, during detailed tuning. Take specially care of tuning or test, because specificity 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.

  • Page 4: Esd(Electrostatically Sensitive Devices) Precaution

    S afety 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. ●...

  • Page 5: Specification

    2. Specification 2-1. GSM General Specification Fr eq. Ba nd[MHz] Up link/ Do wnl ink ARFCN ran ge 0~124 & 975~1023 Tx/Rx spacin g Mod . Bit r ate/ 2 70.83 3kbps Bi t Peri od Tim e Slot Per iod/ Fra me Per iod Mo dulat ion MS Power 3 3dBm~5 dBm...

  • Page 6: Gsm Tx Power Class

    Speclflcation 2-2. GSM Tx Power Class TX Power GSM850 control level 33±2 dBm 31±3 dBm 29±3 dBm 27±3 dBm 25±3 dBm 23±3 dBm 21±3 dBm 19±3 dBm 17±3 dBm 15±3 dBm 13±3 dBm 11±5 dBm 9±5 dBm 7±5 dBm 5±5 dBm TX Power DCS1800 control level...

  • Page 7: Product Function

    3. Product Function Main Function - Enhanced Music Function supporting phone - 1.3 Mega Pixel (CMOS) Camera - Bluetooth V.2.0 EDR - 65K 128x160 TFT 1.9” - SMS/MMS/E-Mail/Video Messaging - WMDRM/MTP - J2ME JAVA (MIDP 2.0/CLDC 1.1) - EMS (Enhanced Message Service) - WAP 2.0 - MP3/AAC/AAC+/e-AAC+ Ringtone - GPRS/EDGE Class 10...
  • Page 8 Product Function SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 9: Array Course Control

    4. Array course control 4-1. Software Adjustments RF CABLE(GH39-00599A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Array course control TEST CABLE-0.4M(GH39-01020A) TEST CABLE-1.5M(GH39-01022A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 4-2. Software Downloading 4-2-1. Pre-requsite for Downloading • Downloader Program( OneNAND Downloder V1.5 Lite For PNX5230.exe • SGH-F250 Mobile Phone • Data Cable • Binary file, TFS file 4-2-2. S/W Downloader Program ■ Load the binary download program by executing the “OneNAND Downloder V1.5 Lite For PNX5230.exe”...
  • Page 12 Array course control 3. Select the file(s) what you want to download - click 'BIN...' to select a binary file. - click 'TFS...' to select a tfs file. 4. Click the 'DOWNLOAD' button to downloading SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Exploded View And Parts List

    5. Exploded View and Parts List 5-1. Cellular phone Exploded View QMW01 QFU01 QSP05 QSP01 QMO01 QLC01 QPC01 QCR79 QFL01 QCR78 QCR05 QSC05 QSC06 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization QCR57 QCR12 QMP01 QVK01...

  • Page 14: Cellular Phone Parts List

    QMO01 QMP01 QMW01 QPC01 QRF01 QSC05 QSC06 QSH01 QSH11 QSP01 QVK01 ASSY ETC-SGH-F250 EARJACK FPCB QRE01 QCK01 QCK02 QRF03 QVO01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description INTENNA-SGHF250 PMO COVER-BATTERY CAMERA MODULE-1/5" 1.3M...
  • Page 15 Design LOC QFU01 QSP05 QFL01 QCR78 QCR79 QLC01 ELA ETC-SGHF250 SUB LCD MODULE QME02 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Description ASSY CASE-SLIDE UPPER ASSY DECO-SPK ASSY CASE-SLIDE LOWER SCREW-MACHINE SCREW-SPECIAL DOME SHEET-SUB 7KEY Exploded View and Parts List SEC CODE...
  • Page 16 Exploded View and Parts List Description BAG PE CBF INTERFACE-DATA LINK CABLE( CBF INTERFACE-MIC CABLE(S20P,B ADAPTOR-ATADS10EBE,BLK,EU S/W CD-SGH-F250 PC STUDIO 3.2. EARPHONE-EARPHONE,3 PLUG,BLK,E LABEL(P)-UNIT SEAL LABEL(R)-WATER SOAK MANUAL USERS-EU ENGLISH MANUAL USERS-EU RUSSIAN LABEL(R)-MAIN(EU) BOX-UNIT(EU NEW) CUSHION-CASE(EU) TAPE INSU TAPE INSU-LED...

  • Page 17: Main Electrical Parts List

    6. Main Electrical Parts List SEC Code Design LOC 0403-001547 D301 0406-001267 ZD405 0406-001286 ZD501 0406-001286 ZD504 0406-001288 ZD400 0406-001288 ZD401 0406-001288 ZD403 0406-001288 ZD404 0406-001288 ZD500 0406-001288 ZD600 0406-001288 ZD601 0505-001325 Q100 0601-002048 LED300 0601-002048 LED301 0801-003012 U306 0801-003022 TR500 0801-003022 U205...
  • Page 18 Main Electrical Parts List SEC Code Design LOC 2007-000162 R218 2007-000162 R512 2007-000162 R521 2007-000162 R605 2007-000164 R314 2007-000170 R207 2007-000170 R208 2007-000171 R101 2007-000171 R105 2007-000171 R107 2007-000171 R316 2007-000171 R417 2007-000171 R418 2007-000171 R509 2007-000171 R602 2007-000171 R603 2007-000171 R604 2007-000758...
  • Page 19 SEC Code Design LOC 2007-008275 R550 2007-008275 R552 2007-008354 R301 2007-008419 R214 2007-008516 R202 2007-008542 R110 2007-008542 R115 2007-008542 R120 2007-008542 R203 2007-008542 R204 2007-008542 R318 2007-008542 R400 2007-008542 R510 2007-008587 R117 2007-009108 R302 2007-009108 R305 2007-009112 R312 2007-009112 R500 2007-009112 R502 2007-009155...
  • Page 20 Main Electrical Parts List SEC Code Design LOC 2203-005050 C403 2203-005052 C103 2203-005055 C159 2203-005056 C411 2203-005061 C116 2203-005061 C119 2203-005061 C150 2203-005281 C139 2203-005393 C423 2203-005393 C425 2203-005481 C127 2203-005481 C140 2203-005482 C112 2203-005482 C327 2203-005482 C401 2203-005482 C409 2203-005482 C410 2203-005482...
  • Page 21 SEC Code Design LOC 2203-006423 C209 2203-006423 C210 2203-006423 C211 2203-006423 C212 2203-006423 C221 2203-006423 C222 2203-006423 C223 2203-006423 C224 2203-006423 C320 2203-006423 C334 2203-006562 C219 2203-006562 C302 2203-006562 C303 2203-006562 C309 2203-006562 C313 2203-006562 C315 2203-006562 C321 2203-006562 C322 2203-006562 C328 2203-006562...
  • Page 22 Main Electrical Parts List SEC Code Design LOC 2703-002308 L517 2703-002308 L518 2703-002314 L118 2703-002367 L100 2703-002367 L103 2703-002367 L105 2703-002367 L108 2703-002368 L120 2703-002596 L111 2703-002597 L110 2703-002597 L112 2703-002700 L106 2703-002870 L102 2703-002870 L117 2703-003064 L402 2703-003331 L300 2801-004339 OSC300 2801-004683...
  • Page 23 SEC Code Design LOC 3710-002499 IFC500 3711-006137 BTC500 3711-006141 HDC600 4202-001255 ANT102 4302-001181 BAT300 GH71-06379A ANT100 GH71-06379A ANT101 Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Main Electrical Parts List Description...
  • Page 24 Main Electrical Parts List SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 25: Block Diagrams

    7. Block Diagrams 7-1. BaseBand Solution Block Diagram Aero4220 RF part OSC100 26MHz PCF50611 OSC300 32KHz AUXDAC3 PNX6511 AUXDAC2 AUXDAC1 Transmit BBDAC BBMOD Receive Filters BBACD REFOSC BAICGU CONTROL BDIF CLK32 BBCGU SIOX GPIO EXTINT DOCN SIM Card DPRAM USIM Flash Card DMAC ARM946...

  • Page 26: Rf Solution Block Diagram

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

  • Page 27: Pcb Diagrams

    8. PCB Diagrams － Main top view 8- 1...
  • Page 28 PCB Diagrams － Main bottom view 8- 2...

  • Page 29: Flow Chart Of Troubleshooting

    9. Flow Chart of Troubleshooting 9-1. Power On ' Power On ' does not work Check the current consumption more than 100mA Check the VBAT more than 3.3V C319(VISA) = 2.6V? Check the VDD_IO_LOW_1.8V of U305 is more than 1.8V Check U305 VDD_IO_HIGH_2.9V = 2.9V AVDD_2.6V = 2.6V...
  • Page 30 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 Flow Chart of Troubleshooting 9-2. Initial Initial Failure Check the VDD_IO_LOW_1.8 of U305 "High" when the phone is boot on Check the VDD_IO_HIGH_2.9V of U305 is "High" LCD display is O.K? Sound is O.K? SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...
  • Page 33 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 34: Charging Part

    Flow Chart of Troubleshooting 9-3. Charging Part Abnormal charging part Check the U305 pin 38 > 5.0V U305 pin 34(AUX_ON) = "L"? Check the U305 pin 36 ≒ 1.25V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Check the circuit related to V_EXT_CHARGE Check the circuit related to...
  • 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 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 37: Sim Part

    Flow Chart of Troubleshooting 9-4. Sim Part Phone can't access SIM Card ① Check the pin 1 of SIM300 Check the circuit related to SIM300 Voltage = 3V ② Check the SIM connector's (SIM300) resolder or change SIM300 connector's to SIM card ③...
  • Page 38 Flow Chart of Troubleshooting 9-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 39: Microphone Part

    9-5. Microphone Part Microphone does not work Check the assembled status of microphone. Check the circuit from U400 to MIC Check U400 PIN 4 = ' 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 Reassemblage microphone ①...
  • Page 40 Flow Chart of Troubleshooting 9-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 Flow Chart of Troubleshooting 9-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 Flow Chart of Troubleshooting 9-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 43: Speaker Part(Melody)

    Flow Chart of Troubleshooting 9-6. Speaker Part(Melody) Speaker does not work Is the terminal of speaker check the specker ① Check the SPK_P & SPK_N Resolder SPK_P & SPK_N "HIGH" ② Check the output circuit Change or resolder around U404 of U401(Audio AMP) ③...
  • Page 44 Flow Chart of Troubleshooting 9-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 Flow Chart of Troubleshooting 9-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 46: Key Data Input

    Flow Chart of Troubleshooting 9-7. Key Data Input Check Initial Operation When one of the keys is Check the Dome sheet & Key Pad pushed, is it displayed on LCD? When one of the keys is pushed, Replace the Key PBA KBIO signal is OK? 9-18 SAMSUNG Proprietary-Contents may change without notice...

  • Page 47: Back Light (For Color Main Lcd)

    Flow Chart of Troubleshooting 9-8. Back Light (for Color Main LCD) Backlight does not work Is LCD Contrast set on high Set LCD Contrast on high level level in the Menu? Change the Slide FPCB or LCD Check the Slide FPCB 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 48: Key Back Light

    Flow Chart of Troubleshooting 9-9. Key Back Light Main Key LED does not work Check the key FPCB Reconnect the key FPCB connector on PBA IS key FPCB ok? Change key FPCB 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 49: Camera Part

    Flow Chart of Troubleshooting 9-10. Camera part "Camera" function does not work Check the Camera Reconnect the camera module connector on PBA Is there another problem? Replace the camera module 9-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 50: Radio Part

    Flow Chart of Troubleshooting 9-11. Radio part Radio does not work ① Resolder C128 C128 ≥ 1.8V and Check PMU part ② C318, C154, C136, L113 Resolder C138, C154, C136, L114 is OK? and check U101 (When U101 operate) Check signal related to U101 9-22 SAMSUNG Proprietary-Contents may change without notice...
  • Page 51 Flow Chart of Troubleshooting 9-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 52: Gsm Receiver

    Flow Chart of Troubleshooting 9-12. GSM Receiver RX ON Cell Power : -60dBm MODULE100 Pin13≥ -65dBm MODULE100 1,2 ≥ -68dBm U100 pin C7 ≥ -70dBm pin B7 ≥ -70dBm U100 pin C2,B1,B2,A1 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...

  • Page 53: Dcs Receiver

    9-13. DCS Receiver RX ON Cell Power : -60dBm MODULE100 Pin13≥ -65dBm MODULE100 3,4 ≥ -68dBm U100 pin D7 ≥ -70dBm pin E7 ≥ -70dBm U100 pin C2,B1,B2,A1 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...

  • Page 54: Pcs Receiver

    Flow Chart of Troubleshooting 9-14. PCS Receiver RX ON Cell Power : -60dBm MODULE100 Pin13≥ -65dBm MODULE100 5,6 ≥ -68dBm U100 pin G7 ≥ -70dBm pin F7 ≥ -70dBm U100 pin C2,B1,B2,A1 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...
  • Page 55 Flow Chart of Troubleshooting 9-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 Flow Chart of Troubleshooting 9-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 57: Gsm Transmitter

    9-15. GSM Transmitter TX ON (5Level) MODULE100 Pin13≥ -65dBm MODULE100 pin10 ≥ 30dBm PAM100 pin11 ≥ 30dBm PAM100 pin7 ≥ -4dBm U100 pin C2,B1,B2,A1 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...

  • Page 58: Dcs Transmitter

    Flow Chart of Troubleshooting 9-16. DCS Transmitter TX ON (5Level) MODULE100 Pin13≥ -65dBm MODULE100 pin8 ≥ 25dBm PAM100 pin17 ≥ 25dBm PAM100 pin1 ≥ -4dBm U100 pin C2,B1,B2,A1 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...

  • Page 59: Pcs Transmitter

    9-17. PCS Transmitter TX ON (5Level) MODULE100 Pin13≥ -65dBm MODULE100 pin8 ≥ 25dBm PAM100 pin17 ≥ 25dBm PAM100 pin1 ≥ -4dBm U100 pin C2,B1,B2,A1 ≥ 0.2Vp_p Check UCP200 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization ①...
  • Page 60 Flow Chart of Troubleshooting 9-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 61: Bluetooth Part

    9-18. Bluetooth part Bluetooth connection disable Check BT function ON Check the voltage of U305 is around 1.8V Check 26KHz Clock on U101 Check the assembled status of ANT102 Exchange U101 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization 9-33 Flow Chart of Troubleshooting Enable BT function...
  • Page 62 Flow Chart of Troubleshooting 9-34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 63: Reference Data

    10. Reference data Reference Abbreviate ― AAC: Advanced Audio Coding. ― AVC : Advanced Video Coding. ― BER : Bit Error Rate ― BPSK: Binary Phase Shift Keying ― CA : Conditional Access ― CDM : Code Division Multiplexing ― C/I : Carrier to Interference ―...
  • Page 64 Reference data 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 65: Disassembly And Assembly Instructions

    11. Disassembly and Assembly Instructions 11-1. Disassembly Instructions 1) Unlock the SD CARD moving to left side. 1) Remove the Battery and SIM CARD/SD CARD from handset. 1) Separate the Rear and the Front with holding top of the Rear. 1) Don't devote heavily the bottom of the Rear.
  • Page 66 Disassembly and Assembly Instructions 1) Lift the PBA top position and seperate the FPCB CONNECTOR. 1) Be careful of damaging the FPCB and CONNECTOR. 1) Push up the FRONT above the picture. 2) Seperate the FRONT from the LCD part. 1) Be careful of damaging the FPCB.
  • Page 67 1) Seperate the LOWER from 1 ~ 4. 1) Be careful of damaging FPCB. 2) Lift up the SLIDE HINGE before you separate LOWER. 1) Solder and seperate the FPCB from the PBA. 2) Remove the TAPE. 2) Remove the FPCB. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Disassembly and Assembly Instructions...

  • Page 68: Assembly Instructions

    Disassembly and Assembly Instructions 11-2. Assembly Instructions 1) Solder the SPK ,MOTOR and paste the bond. 1) Be careful of damaging LCD. 1) Attach the GREEN TAPE like picture. 3) Solder the FPCB on RED position like picture. 2) Verify the SILK line. 1) Be careful of damaging FPCB and Sub PCB Connector.
  • Page 69 1) Insert the FPCB into lower hole. 2) Combine Slide lower and upper from 1 ~ 4 1) Be careful of damaging FPCB. 2) Be careful of scratching the surface of handset. 2) Suspends and 1) Assembling the FRONT and LCD ASS'Y, be careful of dameging FPCB.
  • Page 70 Disassembly and Assembly Instructions 1) Attatch the PBA on bottom side, and then combine the FPCB and CONNECTOR. 2) Verify Mic on front cover's mic guide. 1) Be careful of damaging FPCB. 1) Hook the top side of rear to front ass'y. 1) Be careful of damaging FPCB and Mic.

Table of Contents