Samsung SGH-C140 Service Manual
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Samsung SGH-C140 Service Manual

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GSM TELEPHONE
GSM TELEPHONE
SGH-C140
1.
Specification
2.
Exploded View and Parts List
3.
Flow Chart of Troubleshooting
4.
Array course control
5.
Block Diagrams
6.
PCB Diagrams
7.
MAIN Electrical Parts List
8.
Reference data
9.
Safety Precautions
10. Product Function
CONTENTS

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Summary of Contents for Samsung SGH-C140

  • Page 1 GSM TELEPHONE SGH-C140 GSM TELEPHONE CONTENTS Specification Exploded View and Parts List Flow Chart of Troubleshooting Array course control Block Diagrams PCB Diagrams MAIN Electrical Parts List Reference data Safety Precautions 10. Product Function...

  • Page 2: Table Of Contents

    Contents 1. Specification 1-1. GSM General Specification ..................1-1 1-2. GSM Tx Power Class ....................1-2 2. Exploded View and Parts List 2-1. Cellular phone Exploded View ..................2-1 2-2. Cellular phone Part list .....................2-2 2-3. Disassembly .......................2-4 2-4. Assembly ........................2-6 2-5. LCD KIT ........................2-8 3.
  • Page 3 Contents 5. MAIN Electrical Parts List 6. Block Diagrams 7. PCB Diagrams 8. Reference data 9. Safety Precautions 9-1. Repair Precaution ......................9-1 9-2. ESD(Electrostatically Sensitive Devices) Precaution ..........9-2 10. Product Function 10-1. Main Function ......................10-1...

  • Page 4: Specification

    1. Specification 1-1. GSM General Specification EG SM 9 00 DCS1 800 Ph ase 2 Phase 1 F req. Ban d[MHz] 8 80~915 1710~1 785 Uplin k/Down link 9 25~960 1805~1 880 ARF CN ra nge 0~1 24 & 9 75~102 3 512~8 85 T x/Rx spacing 45 M Hz...

  • Page 5: Gsm Tx Power Class

    Speclflcation 1-2. GSM Tx Power Class TX Power TX Power GSM900 DCS1800 control level control level 33±2 dBm 30±3 dBm 31±2 dBm 28±3 dBm 29±2 dBm 26±3 dBm 27±2 dBm 24±3 dBm 25±2 dBm 22±3 dBm 23±2 dBm 20±3 dBm 21±2 dBm 18±3 dBm 19±2 dBm...

  • Page 6: Exploded View And Parts List

    2. Exploded View and Parts List 2-1. Cellular phone Exploded View QFR01 QKP01 QLC01 QME01 QSP01 QMP01 QMO01 QMI01 QAN02 QRF03 QRF01 QRE01 QCR66 QBA01 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 7: Cellular Phone Part List

    PBA MAIN-SGHC140 (PBA MAIN) GH92-03244A QRF01 　 MPR-TAPE RF SHEET GH74-28399A QSP01 　 SPEAKER 3001-002074 QRE01 ASSY CASE-REAR GH98-03015A 　 　 QRF03 PMO-COVER EAR GH72-35806A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 GH68-02026A MANUAL USERS-EU CZECH GH68-13465A LABEL(R)-MAIN(EU) GH68-13489A BOX(P)-UNIT MAIN(EU) GH69-04914A NPR-BRACKET LID GH71-07160A MPR-SPONGE SPK A GH74-28347A MPR-SPONGE SPK B GH74-28350A MPR-VINYL BOHO WINDOW GH74-30206A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 1) Be care of scratch and molding damage. 1) Be care of damage to the FPCBs. 2) Keep the orders. 2) Be care of scratch and molding damage. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Put the PBA to the FRONT Screw down 4 Points ※ caution ※ caution 1) Be care of scratch and molding damage. 1) Be care of scratch and molding damage. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 11: Disassembly

    1) Be care of damage to the wires. ※ caution 1) Be care of scratch and molding damage. 2) Be care of scratch and molding damage. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 1) Solder the LCD FPCB to take the LCD out. ※ caution 1) Be care of scratch and molding damage. 2) Be care of damage to the LCD FPCB. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Flow Chart Of Troubleshooting

    Flow Chart of Troubleshooting 1. Baseband 3-1-1. Power ON 'Power ON' does not work check the current consumption Download again >= 100mA Check the Voltage Charge the battery of the Battery >= 3.3V Check the pin Check "Power C100,C101,C102 of On"...
  • Page 14 Flow Chart of Troubleshooting ② ①...

  • Page 15: Initial

    Flow Chart of Troubleshooting 3-1-2. Initial Initial Failure check the pin RSTB Check UCP201 of UCP201 is LOW? check the pin CKI of Check R308, R306, C341 UCP201 is 13Mhz? Check the clock signal at pin #3 of OSC400 check OSC400 Freq=26Mhz? Check VCCD_2.9V, VCCD_1.
  • Page 16 Flow Chart of Troubleshooting...

  • Page 17: Sim Part

    Flow Chart of Troubleshooting 3-1-3. Sim Part "Insert SIM" is displayed on the LCD The voltage is 2.8V Check the UCP101 at the pin#1 of SIM103 Is there any signal pin Check the UCP101 & UCP201 #2,3 of SIM103? Check the SIM Card SIM103 R100 VSIM...

  • Page 18: Microphone Part

    Flow Chart of Troubleshooting 3-1-4.Microphone Part * Call with Sim before testing. MicroPhone does not work Check the soldered status Resolder microphone of microphone Check the reference Resolder or change voltage on mic path R143,R147,C139,C145,C140,C144, C139 ≒ 2.0V R148,R149,R150,R152 Is microphone OK? Check UCP101...
  • Page 19 Flow Chart of Troubleshooting...

  • Page 20: Speaker Part

    Flow Chart of Troubleshooting 3-1-5. Speaker Part There is no sound from speaker Is the terminal of Speaker Replace the Speaker O.K.? Are there any signal at the Check the UCP101 C136, R140, R141? ③ Are the any signals at the Check the Speaker R101, R102, R153, R155?
  • Page 21 Flow Chart of Troubleshooting ③...

  • Page 22: Lcd Backlight

    Flow Chart of Troubleshooting 3-1-6. LCD backlight Backlight does not work Backlight ON "TIME" Select backlight "15 sec" mode mode in the menu? Check conecting between Check FPCB PBA and LCD conector Check MOD300 △ v(pin #26 - #28,29) = Check the LCD 3.1/2.7V(dimming) 3-10...

  • Page 23: Lcd

    Flow Chart of Troubleshooting 3-11...
  • Page 24 Flow Chart of Troubleshooting 3-2. RF 3-2-1. GSM Rx CONTINOUS RX ON RF INPUT : 62CH AMP : -50dbm Normal condition Check ANT, C303, R300 catch the channel ? Check PAM400 Resolder or change pi n 12 ≥ -65 RFS400, L300, L301, L303, C305, C302 dbm ? Check PAM400 Resolder or change...
  • Page 25 Flow Chart of Troubleshooting 3-13...
  • Page 26 Flow Chart of Troubleshooting 3-2-2. DCS Rx CONTINOUS RX ON RF INPUT : 698CH AMP : -50dbm Normal condition Check ANT, C303, R300 catch the channel ? Check PAM400 Resolder or change pi n 12 ≥ -65 RFS400, L300, L301, L303, C305, C302 dbm ? Check PAM400 Resolder or change...
  • Page 27 Flow Chart of Troubleshooting 3-15...
  • Page 28 Flow Chart of Troubleshooting 3-16...
  • Page 29 Flow Chart of Troubleshooting VRF_2.9V C301 C300 GND2 OSC400 GND1 26M_OUT RTXQN RTXQP R301 C306 C307 VCCD_2.9V C308 VBAT RX1900B VLDO2 RX1900 VLDO1 RX1800B DCS_LNA_IN_P C313 C314 VBAT RX1800 DCS_LNA_IN_N U400 RX900B GSM_LNA_IN_P VCC_TXVCO RX900 GSM_LNA_IN_N C359 C318 DPCS_PAM_IN TXOP_HI RX850B R304 C321...
  • Page 30 Flow Chart of Troubleshooting 3-2-3. GSM Tx CONTINUS TX ON CONDITION TX POWER DAC : 554 CODE Check U400pin Check and Check U400 APPLIED 15 : about 2~3 change pin 6 : 2.8V ? CH : 62ch dbm? UCP201,UCP101 RBW : 100KHz VBW : 100KHz SPAN : 10MHz REF LEV : 10dBm...
  • Page 31 Flow Chart of Troubleshooting 3-2-4. DCS Tx CONTINUS TX ON CONDITION TX POWER DAC : 560 CODE Check U400 pin Check U400 APPLIED 16 : about 2~3 Check and change pin 6 : 2.8V ? CH : 698CH(DCS), 660CH(PCS) dbm? UCP201,UCP101 RBW : 100KHz VBW : 100KHz...

  • Page 32: Array Course Control

    4. Array course control Test Jig (GH80-00865A) Test Cable (GH39-00743A) RF Test Cable (GH39-00397A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 33: Software Downloading

    – C140XXYY.s3 : Main source code binary. 4-2. Pre-requsite for Downloading • Downloader Program(OptiFlash.exe) • C140 Mobile Phone • Data Cable - How to connect C140 data cable • Binary files SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 34: S/W Downloader Program

    2. Select the “Options” -> “Settings” -> “Generic” -> “Specify hardware platform ”. Choose hardware platform for the downloader file setting. Set the everything else as the default values which are shown below SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 OptiFlash will use to communicate with the phone. However, OptiFlash will use a slower speed if either the PC’s or the phone’s serial hardware is incapable of handling the selected speed SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 C140XXYY.s3”, for the downloader binary setting. Make sure that not to change the reserved memory regions. In case of C140 the reserved memory regions are : -0x00008000 – 0x0001ffff SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 7. After finishing downloading, Certain memory resets should be done to guarantee the normal performance. 8. Confirm the downloaded version name and etc. : *#1111# Full Reset : *2767*3855# SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 38: Block Diagrams

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

  • Page 39: Pcb Diagrams

    6. PCB Diagrams TP101 TP102 ANT_J EAR102 SPK101 RFS400 ZD122 ZD121 TP106 U407 TP107 TP103 SH300 U101 TP104 F401 F400 ZD126 TP105 U202 INTRQ TR103 PWR_KEEP U410 TP202 TP_OE UCP201 TP_A(1) TP204 TP_WE TP203 CP_TDO CP_TMS TP_CSRAM GND1 CP_TDI CP_TCK TP_CSROM U408 U206...
  • Page 40 PCB Diagrams MOD300 GND300 GND301 MENU DOWN SEND VR206 ZD217 VR212 CLEAR VR203 VR205 VR210 VR208 VR209 VR204 SHARP...

  • Page 41: Main Electrical Parts List

    VARISTOR 1405-001082 VR119 VARISTOR 1405-001082 VR203 VARISTOR 1405-001082 VR204 VARISTOR 1405-001082 VR205 VARISTOR 1405-001082 VR206 VARISTOR 1405-001082 VR208 VARISTOR 1405-001082 VR209 VARISTOR 1405-001082 VR210 VARISTOR SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 R-CHIP 2007-000171 R135 R-CHIP 2007-000171 R137 R-CHIP 2007-000171 R153 R-CHIP 2007-000171 R155 R-CHIP 2007-000171 R308 R-CHIP 2007-000171 R320 R-CHIP 2007-000171 R321 R-CHIP 2007-000171 R322 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 R-CHIP 2007-002797 R306 R-CHIP 2007-002965 R131 R-CHIP 2007-002965 R132 R-CHIP 2007-002965 R140 R-CHIP 2007-002965 R141 R-CHIP 2007-002965 R304 R-CHIP 2007-007741 R301 R-CHIP 2007-008137 R157 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 C-CER,CHIP 2203-000654 C134 C-CER,CHIP 2203-000679 C204 C-CER,CHIP 2203-000812 C105 C-CER,CHIP 2203-000812 C106 C-CER,CHIP 2203-000812 C347 C-CER,CHIP 2203-000940 C103 C-CER,CHIP 2203-000995 C107 C-CER,CHIP 2203-000995 C128 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 C-CER,CHIP 2203-005719 C306 C-CER,CHIP 2203-005719 C308 C-CER,CHIP 2203-005719 C319 C-CER,CHIP 2203-005719 U409 C-CER,CHIP 2203-005736 C311 C-CER,CHIP 2203-005736 C317 C-CER,CHIP 2203-005736 C328 C-CER,CHIP 2203-005777 C359 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 C-CER,CHIP 2203-006257 C104 C-CER,CHIP 2203-006257 C109 C-CER,CHIP 2203-006260 C323 C-CER,CHIP 2203-006318 C305 C-CER,CHIP 2203-006324 C108 C-CER,CHIP 2203-006324 C137 C-CER,CHIP 2203-006348 C112 C-CER,CHIP 2203-006348 C113 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 INDUCTOR-SMD 2703-001747 R305 INDUCTOR-SMD 2703-001750 R300 INDUCTOR-SMD 2703-002200 L306 INDUCTOR-SMD 2703-002200 R101 INDUCTOR-SMD 2703-002200 R102 INDUCTOR-SMD 2703-002313 L303 INDUCTOR-SMD 2703-002484 L304 INDUCTOR-SMD 2703-002558 L305 INDUCTOR-SMD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 RFS400 CONNECTOR-COAXIAL 3709-001336 SIM103 CONNECTOR-CARD EDGE 3711-006084 BTC104 HEADER-BATTERY 3722-001876 DCJ101 JACK-DC POWER 3722-002249 EAR102 JACK-EAR PHONE GH09-00039A UCP201 IC MICOM GH71-07161A SH300 NPR-BRACKET FRAME SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 49: Reference Data

    PS : Pilot Symbol QPSK: Quadrature Phase Shift Keying RS : Reed-Solomon SI : Service Information TDM : Time Division Multiplexing TS : Transport Stream SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 50: 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 51: 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 52: Product Function

    Main Function - Network services - SMS & SOS message - Voicemail - Web browser - Calendar, Calculator, Speed dial, etc... - SDN(Service Dialling Numbers) 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 ⓒ 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. 2007. 01. Rev.1.0...

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