1. Manuals
  2. Brands
  3. Samsung Manuals
  4. Cell Phone
  5. SGH-X640
  6. Service manual

Samsung SGH-X640 Service Manual

Anycall
Hide thumbs Also See for SGH-X640:
Table of Contents

Advertisement

Quick Links

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

Advertisement

Table of Contents
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: 1 . S P E C I F I C A T I O N

    - 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 1- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Gsm Tx Power Class

    4 ¡¾ 4 dBm 5 ¡¾ 3 dBm 2 ¡¾ 5 dBm 2 ¡¾ 5 dBm 0 ¡¾ 5 dBm 0 ¡¾ 5 dBm 1- 2 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. 2- 1 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 CPU of the portable telephones. 2- 3 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 ISO/IEC 1091 8- 1 JPEG c omplia nce (DCT - ba s e d). JPEG de c ode r s uppor ts YUV444, YUV422, YUV420 a nd YUV41 1 for ma t s ta nda r d JPEG ima ge . 2- 5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Circuit Description 2- 6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 QCK01 QMO01 QFR01 QCA01 QRF03 QFL01 QVO01 QMI03 QKP01 QSC05 QCR17 QMP01 QSC08 QMI01 QME01 QMW02 QCR08 QAN02 QRE01 QIF01 QRF01 QCR21 QBA01 3- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Exploded Views And Parts List

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

  • Page 15: Electrical Parts List

    C 133 2203- 000604 C 304 2203- 005061 C 134 2203- 000854 C 305 2203- 005496 C 135 2203- 000278 C 306 2203- 006208 4- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 2203- 001652 C 704 2203- 000278 C 426 2203- 006053 C N 400 3709- 001273 C 427 2404- 001225 C N 500 3710- 001994 4- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 LED 703 0601- 001602 R 121 2007- 000142 LED 704 0601- 001602 R 123 2007- 000171 LED 705 0601- 001602 R 124 2007- 001288 4- 3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 R 707 2007- 000174 R 313 2007- 000162 R 708 2007- 000174 R 314 2007- 000162 R 709 2007- 000174 R 315 2007- 000162 4- 4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 1203- 001917 U 702 1203- 003459 V600 1405- 001082 V601 1405- 001082 V602 1405- 001082 V603 1405- 001082 V604 1405- 001082 V605 1405- 001082 4- 5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 E lectrical Parts List 4- 6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 DCS: Pout = 33.0 dBm E ff = 52% Pout= 6.5 3dBm typ.,Ic <= 33mA PCS: Pout = 32.0 dBm E ff = 55% Harmonics <= -15dBc 5- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 22: Block Diagrams

    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 5- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 6 . P C B D i a g r a m s 1. Main PCB Top Diagr am 6- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 24: Pcb Diagrams

    PCB Diagrams 2. Main PCB Bot t om Diagr am 6- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 C heck for the clock at C 126 = 13M H z (related to U 100) Y es C heck the initial operation Y es E N D 7- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 26: Flow Chart Of Troubleshooting

    F low Chart of Troubleshooting Power On 7- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 (m em ory C E ) O K ? Y es C heck the circuit around L C D&U 304 (Short or not solder) Y es E N D 7- 3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 F low Chart of Troubleshooting Initial 7- 4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 29: Charging Part

    C H G _O N signal Y es C heck the C 507 R esolder or replace U 502 ¡Ö4.2V Y es E N D 7- 5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 U502 V_EXT_CHARGE ITERM R508 CHG_ON 2 BAT _ACPR 7 CHARGER_OK _CHRG END_OF_CHARGE 4 GND PROG 5 10 11 R511 R512 C508 C506 ZD501 7- 6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 31: Sim Part

    C N 400 pin 2 = " H (SIM _R ST)" ? Y es C heck the SIMC ard Y es E N D 7- 7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 32: Microphone Part

    200 to M IC C 604 and C 610 Y es C heck the M IC R eplace the M IC Y es E N D 7- 8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 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 7- 9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 C heck the circuit related to ¡Ö1.8V ? " SPK _P/SPK _N "signal Y es Is Speaker working? C hange the Speaker Y es E N D 7- 10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 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: Key Data Input

    W hen one of the keys is R eplace the PBA pushed, K B IOsignal is O K ? Y es E N D 7- 12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 37: Receiver Part

    M odify the speaker wire soldering speaker wire Y es R eplace the R eceiver Is R eceiver working? Y es E N D 7- 13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 38: Lcd Part

    C heck the U 303 20(R S) is O K ? Y es R eplace the L C DM odule Y es E N D 7- 14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 39: Key Back Light

    U 701 pin 5 = " H " ? Y es R esolder or replace U 701 U 701 pin 2,3 = " H " ? Y es E N D 7- 15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 40: Camera Part

    C heck the R 304, C 308 Y es Is there another problem ? Y es R eplace the cam era m odule E N D 7- 16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 41: Gsm Receiver

    R 116, R 117, R 119 R 100, R 101 R 121 >= 1V Y es C heck U 200 E N D 7- 17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 42: Gsm Transmitter

    R F PSU Part O K ? Y es R esolder U 100 or check Txcpo(R 114) C heck U 200 E N D 7- 18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 43: Dcs Receiver

    R 100, R 101 R 116, R 117, R 119, R 121 >= 1V Y es C heck U 200 E N D 7- 19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 44: Dcs Transmitter

    R F PSU Part pin22,28 >= 2.7V Y es R esolder U 100 or check Txcpo(R 114) C heck U 200 E N D 7- 20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 F low Chart of Troubleshooting T ransmitter 7- 21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 F low Chart of Troubleshooting 7- 22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

Table of Contents