Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Samsung Manuals
  4. Cell Phone
  5. SGH-X640
  6. Service manual

Samsung SGH-X640 Service Manual

Hide thumbs Also See for SGH-X640:

Advertisement

Quick Links

See also: User Manual , Manual
SAMSUNG Anycall
SAMSUNG Anycall
SGH-X640
CONTENTS
1.
2.
3.
4.
5.
6.
7.

Advertisement

loading

Related Manuals for Samsung SGH-X640

Summary of Contents for Samsung SGH-X640

  • Page 1: Table Of Contents

    SAMSUNG Anycall SGH-X640 SAMSUNG Anycall CONTENTS Specification Circuit Description Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting...
  • Page 2 ⓒ Samsung Electronics Co.,Ltd. March. 2005 This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No.: GH68-06819A BASIC.

  • Page 3: Specification

    - 1 0 0 d B m TDM A M u x C el l Ra d iu s 3 5 Km 3 5 Km 2 Km 2 Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 4 4 ± 4 dBm 4 ± 4 dBm 5 ± 3 dBm 2 ± 5 dBm 2 ± 5 dBm 0 ± 5 dBm 0 ± 5 dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 5: Circuit Description

    I and Q baseband signals are applied to the IQ modulator that shifts the modulation spectrum up to the transmit IF. It is designed for low harmonic distortion, low carrier leakage and high image rejection to keep the phase error as small as possible. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 LED’s or to control a DC/DC converter that drives LCD backlight. But, this phone (SGH-X640) is use UFB LCD. UFB LCD controls backlight brightness by contrast setting. So "BL_VDD" voltage is always high value when phone is in active mode. When phone is in dimming mode "BL_VDD"...
  • Page 7 The hardware sequencer built in this device allows playing of the complex music without giving excessive load to the CPU of the portable telephones. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 Signals in the OM6359 enable two memories. They use only one volt supply voltage, VDD3 in the PCF50601. This system uses Samsung's memory, KBB06A500M-T402. It is consisted of 128M bits flash NOR memory and 128M bits flash NAND memory and 64M bits SCRAM. It has 16 bit data line, HD[0~15] which is connected to OM6359 and MV317S.
  • Page 9 CPU is available. JPEG encoder and decoder are baseline ISO/IEC 10918-1 JPEG compliance (DCT-based). JPEG decoder supports YUV444, YUV422, YUV420 and YUV411 format standard JPEG image. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Circuit Description SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 QLC01 QCK01 QSP01 QMO01 QFR01 QCA01 QRF03 QFL01 QVO01 QMI03 QKP01 QSC05 QCR17 QMP01 QSC08 QMI01 QME01 QMW02 QCR08 QAN02 QRE01 QIF01 QRF01 QCR21 QBA01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Exploded Views And Parts List

    SCREW MACHINE 6001-001456 QAN02 INTENNA GH42-00523A QRE01 REAR COVER GH75-06202A QRF01 RF SHEET GH74-13063A QIF01 IF COVER GH72-19208A QCR21 SCREW MACHINE 6001-001507 QBA01 BATTERY GH43-01658A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 3. Test Jig (GH80-01909A) 3-1. RF Test Cable 3-2. Test Cable 3-3. Serial Cable (GH39-00283A) (GH39-00217A) 3-4. Power Supply Cable 3-5. DATA CABLE 3-6. TA (GH39-00219A) (GH44-00482A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 Exploded view and Part list SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 15: Electrical Parts List

    2203-000233 C130 2203-005482 C301 2203-000679 C131 2203-000233 C302 2203-005061 C132 2203-001153 C303 2203-000438 C133 2203-000604 C304 2203-005061 C134 2203-000854 C305 2203-005496 C135 2203-000278 C306 2203-006208 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 2404-001352 C421 2404-001225 C628 2203-000278 C422 2203-005482 C702 2203-000254 C424 2404-001225 C703 2203-006257 C425 2203-001652 C704 2203-000278 C426 2203-006053 CN400 3709-001273 C427 2404-001225 CN500 3710-001994 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 2007-000142 LED700 0601-001602 R118 2007-000775 LED701 0601-001602 R119 2007-000142 LED702 0601-001602 R120 2007-000171 LED703 0601-001602 R121 2007-000142 LED704 0601-001602 R123 2007-000171 LED705 0601-001602 R124 2007-001288 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 2007-007001 R704 2007-000174 R310 2007-000162 R705 2007-000174 R311 2007-000162 R706 2007-000174 R312 2007-000162 R707 2007-000174 R313 2007-000162 R708 2007-000174 R314 2007-000162 R709 2007-000174 R315 2007-000162 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 1205-002350 U500 2901-001246 U502 1203-003486 U603 1001-001253 U610 1202-001036 U701 1203-001917 U702 1203-003459 V600 1405-001082 V601 1405-001082 V602 1405-001082 V603 1405-001082 V604 1405-001082 V605 1405-001082 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 Electrical Parts List SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 21: Block Diagrams

    DCS: Pout = 33.0 dBm E = 52% Pout= 6.5 3dBm typ.,Ic <= 33mA PCS: Pout = 32.0 dBm E = 55% Harmonics <= -15dBc SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 VDD_VIB CAMERA NAND(128Mb) NOR(128Mb) MIC_BIAS SRAM(64Mb) Li-Ion Battery VDD_KEY MV317 SPVDD AVDD Charging RTC_CLOCK SIM CARD AVDD_TEMP Circuit (32.768KHz) BL_VDD BB Block Diagram of SGH-X640 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 23: Pcb Diagrams

    6. PCB Diagrams 1. Main PCB Top Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 PCB Diagrams 2. Main PCB Bottom Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 25: Flow Chart Of Troubleshooting

    Check the VDD2,VDD3 circuit = 2.8V? Check the clock generation circuit Check for the clock at C126 = 13MHz (related to U100) Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 Flow Chart of Troubleshooting Power On SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 Check the circuit related to reset Is U304 pin 4,6 Check the U304 (memory CE) OK? Check the circuit around LCD & U304 (Short or not solder) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 Flow Chart of Troubleshooting Initial SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 U502 pin 5 = "H"? Resolder or replace U502 Check the circuit related to U502 pin = "L"? CHG_ON signal Check the C507 Resolder or replace U502 ≒ 4.2V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 R509 C505 U502 V_EXT_CHARGE R508 ITERM CHG_ON 2 BAT _ACPR 7 CHARGER_OK _CHRG END_OF_CHARGE 4 GND PROG 5 10 11 R511 R512 C506 C508 ZD501 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 Check SIMCLK Signal on CN400 Check the 32k OSC pin3 in a few second After SIM card insert, Replace PBA CN400 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 32 MIC Check the circuit Resolder the R601, R605, R611, R612, R613, from U200 to MIC C604 and C610 Check the MIC Replace the MIC SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 C626 C627 C600 C601 C602 R601 V600 C604 MIC-JTAG MIC_P R612 C606 C608 C609 C607 C610 MIC600 R603 MIC_N R613 C612 C613 C611 V601 R605 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 U301 pin 17,18 ≒ 1.8V? Resolder U301 (When U301 operate) HDC700 pin 40,42 Check the circuit related to ≒ 1.8V? "SPK_P/SPK_N" signal Is Speaker working? Change the Speaker 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 PLLC R303 SPOUT2 AMP_N C301 SPOUT1 VREF C302 C303 C304 AMP_P C305 SPVDD R305 MELODY IC C307 C306 R306 C309 R307 C310 R308 EARP_HF 7-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 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? 7-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Cange LCD module SPK +,- PAD = 1.5V? Check the soldering of the Modify the speaker wire soldering speaker wire Replace the Receiver Is Receiver working? 7-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Menu? Check the R304, C308 HDC700 pin 24 = 2.8V? HDC700 pin 19(L_WR), Check the U303 20(RS) is OK? Replace the LCD Module 7-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Key Backlight does not work Check the PMU related to "VDD_KEY" U701 pin 5 = "H"? Resolder or replace U701 U701 pin 2,3 = "H"? 7-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 OSC300 Pin 1 = 24MHz? Check OSC300 and R318 HDC700 pin 24 = 2.8V? Check the R304, C308 Is there another problem? Replace the camera module 7-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 >=2.7V >= 1V pin20 >=4.0V RF PSU Part Check &Resolder U100, RF26MHz part, R116, R117, R119 R100, R101 R121 >= 1V Check U200 7-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 U100 pin6, 7, 8, 9 pin4 >= 4.0V Check & Resolder >= 500mV pin22,28 >=2.7V RF PSU Part Resolder U100 or check Txcpo(R114) Check U200 7-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 >= 2.7V >= 1V RF PSU Part pin20 >=4.0V Check &Resolder U100, RF26MHz part, R100, R101 R116, R117, R119, R121 >= 1V Check U200 7-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 U103 pin6, 7, 8, 9 Check & Resolder pin4 >= 4.0V >= 500mV RF PSU Part pin22,28 >= 2.7V Resolder U100 or check Txcpo(R114) Check U200 7-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 Flow Chart of Troubleshooting Transmitter 7-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Flow Chart of Troubleshooting 7-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...