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Samsung SGH-X140 Service Manual

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GSM TELEPHONE
GSM TELEPHONE
SGH-X140
CONTENTS
1.
Specification
2.
Flow Chart of Troubleshooting
3.
Exploded Views and Parts List
4.
Electrical Parts List
5.
PCB Diagrams
6.
Block Diagrams

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Summary of Contents for Samsung SGH-X140

  • Page 1 GSM TELEPHONE SGH-X140 GSM TELEPHONE CONTENTS Specification Flow Chart of Troubleshooting Exploded Views and Parts List Electrical Parts List PCB Diagrams Block Diagrams...
  • Page 2 ⓒ Samsung Electronics Co.,Ltd. Feb. 2005 Printed in Korea. This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Code No.: GH68-06385A International and/or domestic law. BASIC.

  • Page 3: Specification

    0pcl ~ 15pcl S e nsi ti vit y -102dBm - 10 2d B m -100dBm TDM A Mu x Cell Radiu s 35 Km 35 Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Gsm Tx Power Class

    9 ± 3dBm 6 ± 4 dBm 7 ± 3 dBm 4 ± 4 dBm 5 ± 3 dBm 2 ± 5 dBm 0 ± 5 dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 5: Flow Chart Of Troubleshooting

    Check the clock signal at pin#27 of U404 Freq = 13MHz Check the clock generation circuit Vrms >=300mV (related to OSC401) Vpp ≒ 900mV Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 SGH-X140 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 7 TXIP RFIPN TXIN RXTXIN RFIPP TXQP RXTXQP TXQN RXTXQN CLK13M_RF SI_EN SERLE SERCLK SERDAT C429 C430 C431 R422 OSC401 R423 C442 R424 CLK13M_RF C443 C449 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 The voltage is "High" at Check the U101 the C112,C115,C116 LCD display is O.K Check the LCD part Sound is O.K Check the Audio part SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 JACK_IN KEY_ROW(2) PWR_KEEP KEY_ROW(3) R220 SIMRST KEY_ROW(4) DEBUG_RI FLASH_RESET I2C_DATA DEBUG_DTR I2C_CLK DEBUG_RTS UP_CS DEBUG_TXD UP_SCLK DEBUG_RXD UP_SDO DEBUG_CTS UP_SDI CHG_DET SIMCLK SIMDATA SDS_TXD SDS_RXD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 10: Sim Part

    Check the voltage at pin#1 of CN101 >= Check the U101 2.8V ? Is there any signals Check the U201 pin#2,#3,#6 of CN101 ? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 11: Microphone Part

    Reassembled the microphone of microphone O.K? Check the reference voltage on mic path Resolder or change ZD632 ≒ 2.0V ? R511,R510,R512,C515,C512,R516, R517,R508,R515,R520,R520,C525 Is microphone ok? Check U101 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Speaker Part

    U501 ? The pin#4 of Check the The pin#4 of Check the U501 is "High" U502 U501 is "Low" U502 Check the U201 Check the U501 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 SGH-X140 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 OSC401 pin 8 : 13MHz ? change or resolder Vp-p : 950mV? U404 U404 pin1,2,3,28 Vp-p resolder or change : 120mV ? U101 CHECK!! 2-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 U404 CHECK OSC401 pin 8 : 13MHz ? change or resolder Vp-p : 950mV? U404 U404 pin1,2,3,28 Vp-p resolder or change U101 CHECK!! 2-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 U101 pinA13,C111 pin8 : 13MHz ? change or resolder change or resolder Vp-p : 950mV? U404 pin4,5,6,7:100m U101 change or resolder U404 change or resolder 2-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 U101 pinA13,C111 pin8 : 13MHz ? change or resolder change or resolder Vp-p : 950mV? U404 pin4,5,6,7:100m U101 change or resolder U404 change or resolder 2-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 SGH-X140 Flow Chart of Troubleshooting 2-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 19: Exploded Views And Parts List

    3. SGH-X140 Exploded View and Parts List 3-1. Cellular phone Exploded View QMW02 QSP05 QFR01 QMI05 QIF01 QMO01 QKP01 QSP01 QLC01 QRF03 QME01 QMP01 QAN02 QRE01 QSC01 QRF01 QBA01 QCR04 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 20: Cellular Phone Parts List

    RF SHEET GH74-13093A QSC01 SCREW COVER GH72-20329A QMI05 MIC HOLDER GH73-03844A QIF01 IF COVER GH72-18131A QKP01 KEYPAD GH75-05879A QME01 UNIT METAL DOME GH59-01935A QBA01 BATTERY GH43-01665A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 3-3. Test Jig (GH80-00865A) 3-3-1. RF Test Cable 3-3-2. Test Cable 3-3-3. Serial Cable (GH39-00283A) (GH39-00127A) 3-3-4. Power Supply Cable 3-3-5. DATA CABLE 3-3-6. TA (GH39-00305A) (GH44-00701A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 22: Electrical Parts List

    R217 2203-005061 C214 2007-000157 R218 2203-001072 C215 2007-000157 R219 2203-001072 C216 2007-000162 R220 2203-005061 C217 2007-000171 R221 2203-005061 C218 2007-000143 R223 2203-005480 C219 2007-003025 R303 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 R530 2203-000254 C441 2007-008531 R531 2203-000254 C442 2007-001306 R601 2203-000254 C443 2007-001306 R602 2203-000254 C449 2007-001306 R603 2203-005061 C450 2007-001306 R606 2203-000233 C451 2007-001306 R607 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 R702 2404-001281 C542 2007-000148 R703 2203-000995 C543 2007-000162 R704 2404-001397 C602 2007-008531 R705 2203-006324 C603 2007-000174 R706 2203-006053 C605 2007-000775 R707 2203-000438 C701 2007-008516 R708 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 ZD605 2901-001317 F304 1405-001082 ZD606 2901-001317 F305 1405-001082 ZD607 2703-002767 L301 1405-001082 ZD608 2703-001512 L401 1405-001082 ZD609 2703-001751 L402 1405-001082 ZD610 2703-002759 L403 1405-001082 ZD611 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 ZD623 0601-001094 LED606 1405-001082 ZD624 0601-001094 LED607 0403-001427 ZD628 0601-001094 LED608 0403-001387 ZD629 0601-001094 LED631 1405-001082 ZD630 0601-001094 LED632 0406-001150 ZD631 0601-001094 LED633 0406-001150 ZD632 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 27: Pcb Diagrams

    ZD62 4 ZD60 4 ZD60 7 ZD61 3 ZD61 2 M10 1 U50 3 CN60 1 U20 4 U107 H20 4 H20 3 ZD63 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 TP21 1 TP21 0 TP21 3 TP20 4 TP20 9 TP20 2 TP20 3 TP20 5 TP22 5 STAR SHARP TP20 6 MIC 50 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 29: Block Diagrams

    6. SGH-X140 Block Diagrams 6-1. RF Solution Block Diagram π π SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 30: Base Band Solution Block Diagram

    DAICK ICP/IDP JTAG 32. 768KHz DAIRN DAIDO DAIDI KEYBOARD Audi o Par t Audi o FLASH SRAM (32M) (128M) Keyp ad Memor y part RADIO SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

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