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Samsung SGH-C270 Service Manual
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Samsung SGH-C270 Service Manual

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GSM TELEPHONE
SGH-C270
GSM TELEPHONE
CONTENTS
3. Product Function
7. Disassembly and Assembly
Instructions
10. Chart of Troubleshooting

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Summary of Contents for Samsung SGH-C270

  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-C270 GSM TELEPHONE CONTENTS 1. Safety Precautions 2. Specification 3. Product Function 4. Array course control 5. Exploded View and Parts list 6. MAIN Electrical Parts List 7. Disassembly and Assembly Instructions 8. Block Diagrams 9. PCB Diagrams 10.

  • Page 2: 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 3 ● 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 4: Specification

    30 dBm ~ 0d Bm Power Cl ass (max +33dBm) (max +30dBm) Sensitivity -1 02dBm -1 00dBm T DM A M u x Cell Ra dius 35Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5 14±3 dBm 15±2 dBm 12±4 dBm 13±2 dBm 10±4 dBm 11±3 dBm 8±4dBm 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 6 3. Operation Instruction and Installation Main Function • S20 Pin TA • No Java • WAP 2.0 • Dual band(900/1800MHz) • 16 Poly Ringtone • Non Camera SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 7: Array Course Control

    4. Array course control 4-1. Software Adjustments Test Cable (GH39-01160A) Test Jig (GH99-36900A) RF Test Cable (GH39-00985A) Adapter (GH99-38251A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 4-2-2. Pre-requsite for Downloading • Downloader Program(Divo Downloader for SEC v01) • SGH-C270 Mobile Phone • JIG BOX • Test Cable • Serial Cable • Binary files SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 4-2-3. S/W Downloader Program 1. Load the binary download program by executing the Divo Downloader for SEC v01 “ ”. 2. Select the Port, Baud Rate and Mode. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Array course control 3. Select the binary files what you want to download SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 Array course control 4. Press the "Start" button and connect the Handset 5 Press the "Download" button. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 Array course control 6. When downloading is complete, automatically the small window was showed up. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Exploded View And Parts List

    QFR01 QMI03 QFU01 QKP01 QME03 QCR72 QLC01 QMP01 QSP01 QME01 QMO01 QHI01 QMI01 QSH01 QFL01 QSC01 QCR72 QAN02 QRE01 QCR72 QSC05 QMW02 QBA01 QCR67 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 ASSY ETC-SGHC260 CON TO CON GH59-04070A QFL01 ASSY CASE-LOWER GH98-03404A QHI01 ASSY MEC-HINGE GH75-08452A QFR01 ASSY CASE-FRONT GH98-07419A QIF01 PMO COVER-IF GH72-46114A QMI03 RUBBER HOLDER-MIC GH73-11375A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 15: Main Electrical Parts List

    GRP1555C1H101J 2203-000425 C117,C308,C309,C310 GRP1555C1H180J 2203-000425 C331,C332 GRP1555C1H180J 2203-000438 C226 GRP155R71H102K 2203-000585 C307 GRP155R71H221KD01E 2203-000679 C300,C302,C306 GRP1555C1H270J 2203-000812 C101,C108,C109,C112 GRP1555C1H330J 2203-000812 C116 GRP1555C1H330J 2203-002668 C127 C1005CG1H0R5BT SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 Main Electrical Parts List Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list. SEC CODE Design LOC Description C107,C110,C111,C115 GRP1555C1H1R2CZ01E 2203-005234 L109 GRP1555C1H1R5BZ01E 2203-005281 C113,C114,C209,C211 GRP155R61A104KA01E 2203-005482 2203-005482 C225,C227,C301,C304 GRP155R61A104KA01E 2203-005482 C312,C328,C330...

  • Page 17: Block Diagrams

    128/64MB KEY PAD RF / IF Tranceiver Battery 750mA AUDIO MIC Interface / RTC --------------- Ear MIC Basic Charging SIM Interface Charging Controller EARSPK & SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 Block Diagrams 7-2. RF Solution Block Diagram C270 RF Block Diagram Si4902 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 19: Pcb Diagrams

    DIGIT3 DIGIT2 KEYPAD DIGIT4 KEYPAD KEYPAD DIGIT6 DIGIT5 DIGIT7 KEYPAD KEYPAD KEYPAD DIGIT9 DIGIT8 STAR KEYPAD KEYPAD KEYPAD SHARP DIGIT0 L303 C329 L302 C327 MIC300 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 R312 BAT200 R108 R112 C122 R109 R203 R116 R202 C310 C309 ZD100 L105 R315 R310 G202 G203 R314 BOTHHOLE BOTHHOLE TA200 D200 IFC300 R105 RD2R020HB1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 OSC200 produces clock Solder OSC200 again signal Not OK Check the R310 concerning about Jig Solder R310 again Power on Is Power On working? Repeat sequence SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 XTAL_32K_2 OSC201 XTAL_SHLD GND2 XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD SIM_CL K SIM_CL K SIM_DAT A SIM_DATA SIM_RST SIM_RST FM_INT SSI_CLK FM_RST SSI_DAT A LED_EN SSI_OUT SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 NC 22 NC 23 NC 25 C311 BAT200 C122 R109 R203 R202 C310 C309 ZD100 L105 R315 R310 G202 G203 R314 BOTHHOLE BOTHHOLE TA200 D200 IFC300 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 VSIM_3.0V at the pin#1 Check the SIM Power SIM100 = "H"? Is there any signal pin Check U202 #2,3,6 of SIM200? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 VSIM_3.0V VC C SIM20 0 C227 BAT200 C122 R109 R203 R202 C310 C309 ZD100 L105 R315 R310 G202 G203 R314 BOTHHOLE BOTHHOLE TA200 D200 IFC300 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 R304 and R305 again MIC_BIAS Not OK Check the circuit Solder L303, C328, C330 and L302 of MIC PART again Is Phone MIC working? Replace MIC SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 C331 C307 NC 22 NC 23 NC 25 C311 MIC_BIAS L302 C327 MIC300 POWE R POWE R GND1 C328 GND2 MIC_P L303 C329 C330 MIC_N SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 ) Not OK Solder L300, L301, R303, R304 and Check the circuit R305 again of EAR MIC Repeat the sequence Is Earphone MIC working? SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 C331 C307 NC 22 NC 23 NC 25 C311 MIC_BIAS L302 C327 MIC300 POWE R POWE R GND1 C328 GND2 MIC_P L303 C329 C330 MIC_N SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 , R303, R304 and R305 again Not OK Check the U202 Solder U202 or replace U202 Pin R19, T19 Not OK Check EAR SW Solder U310 again 9-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 KEYOUT(1 ) KEYOUT 1 KEYOUT(2 ) KEYOUT 2 KEYOUT(3 ) KEYOUT 3 J1 5 VC 1 FE_CTRL0 J1 6 FE_CTRL1 MOD_STANDB Y FE_CTRL2 PON_PA FE_CTRL3 9-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 R310 JIG_ON R314 16 16 UART0_TD R315 UART0_RD 18 18 20 20 C308 C309 C310 C331 C307 NC 22 NC 23 NC 25 C311 9-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 Check the U201 Replace U201 Pin #20 = 5V? Not OK Check the C218, C219 Solder C218, C219 and R207. and R207 Check the TA connection. 9-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 ICHGP D2 11 6 D1 D2 13 VBA T R207 FLA G 15 2 NC ICHGN 12 NC 16 NC 22 NC NC 27 9-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Check Pin W18, W19 of Solder U202 again or replace U202 U202 Not OK Check the Pin #3, #5 of Replace HDC300 HDC300 Not OK Replace the speaker 9-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 KEYOUT(1 ) KEYOUT 1 KEYOUT(2 ) KEYOUT 2 KEYOUT(3 ) KEYOUT 3 J1 5 VC 1 FE_CTRL0 J1 6 FE_CTRL1 MOD_STANDB Y FE_CTRL2 PON_PA FE_CTRL3 9-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 VBA T LED_K2 16 16 LED_K1 NCS 0 19 19 20 20 HWR_N A(20) 23 23 24 24 LCD_RESET C314 C316 C326 C315 C317 9-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Check the Dome sheet & Key FPCB pushed, is it displayed on LCD? When one of the keys is Replace the PBA pushed, KEY_IO signal is OK? 9-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Set BACKLIGHT on Always ON in the Menu? Not OK Check the outflow voltage of Replace U100 U100(PIN 3) is equal to 3.7V Replace the LCD Module 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 VBA T LED_K2 16 16 LED_K1 NCS 0 19 19 20 20 HWR_N A(20) 24 24 23 23 LCD_RESET C314 C316 C326 C315 C317 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 Set BACKLIGHT on Always ON in the Menu? Not OK Check VDD_KEY_ON and Resolder R301 and C303 and replace U300. R301, C303 Replace LED 9-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 DIGIT1 KEYPAD KEYPAD KEYPAD DIGIT3 DIGIT2 DIGIT4 KEYPAD KEYPAD DIGIT6 KEYPAD DIGIT5 DIGIT7 KEYPAD KEYPAD KEYPAD DIGIT9 DIGIT8 STAR KEYPAD KEYPAD KEYPAD SHARP DIGIT0 9-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 G1, F1 (EGSMRX) and L104 ≥ -65dBm > Not ok Resolder or Change F100 Check U202 Resolder or Change MOD_STANDBY=HIGH U202 PON_PA=LOW BAND=LOW 9-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 OSC201 XTAL_SHLD GND2 XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD SIM_CL K SIM_CL K SIM_DAT A SIM_DATA SIM_RST SIM_RST FM_INT SSI_CLK FM_RST SSI_DAT A LED_EN SSI_OUT 9-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 OUT2 7 RAMP VRAMP HB_RF_I EGSMRX_ 4 IN 2 LB_RF_I C111 OUT2 GPCTRL0 VC 1 L104 GPCTRL1 MOD_STANDB EGSMRX_ C115 C116 EGSM_TX C117 DCS_TX 9-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Flow Chart of Troubleshooting 9-12. GSM Transmitter TX ON (5Level) Resolder PAM200 PAM200 Pin13 (TX MODULE) ≥ 30dBm PAM200 pin19 20dBm ≥ Check U202 Resolder U202 (TRANSCEIVER) 9-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 OSC201 XTAL_SHLD GND2 XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD SIM_CL K SIM_CL K SIM_DAT A SIM_DATA SIM_RST SIM_RST FM_INT SSI_CLK FM_RST SSI_DAT A LED_EN SSI_OUT 9-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 C110 and L102 ≥ -65dBm > Not ok Resolder or Change F100 Check U202 Resolder or Change MOD_STANDBY= "HIGH" PON_PA= "LOW" U202 BAND= "HIGH" 9-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 OSC201 XTAL_SHLD GND2 XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD SIM_CL K SIM_CL K SIM_DAT A SIM_DATA SIM_RST SIM_RST FM_INT SSI_CLK FM_RST SSI_DAT A LED_EN SSI_OUT 9-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 OUT2 7 RAMP VRAMP HB_RF_I EGSMRX_ 4 IN 2 LB_RF_I C111 OUT2 GPCTRL0 VC 1 L104 GPCTRL1 MOD_STANDB EGSMRX_ C115 C116 EGSM_TX C117 DCS_TX 9-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 Flow Chart of Troubleshooting 9-14. DCS Transmitter TX ON (0Level) Resolder PAM100 PAM100 Pin13 (TX MODULE) ≥ 30dBm PAM100 pin20 20dBm ≥ Resolder U202 Check U202 (TRANSCEIVER) 9-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 OSC201 XTAL_SHLD GND2 XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD XTAL_SHLD SIM_CL K SIM_CL K SIM_DAT A SIM_DATA SIM_RST SIM_RST FM_INT SSI_CLK FM_RST SSI_DAT A LED_EN SSI_OUT 9-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 53: Reference Data

    PS : Pilot Symbol QPSK: Quadrature Phase Shift Keying RS : Reed-Solomon SI : Service Information TDM : Time Division Multiplexing TS : Transport Stream 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 1)When disjoint Lear, so that do not scratch to SET and 1)So that Connector at CON TO CON Connector occur Observe. decomposition is not damaged Observe. 11-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 1) Take care so that Connector CON TO CON may not 1) When work separation, so that CON TO CON be damaged. Connector is not tear Observe. 11-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 1) Take care so that group may not go to FOLDER. 1) Take care so that camera FPCB may not be 2) Take care so that LCD may not be damaged. damaged. 11-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 1) Confirm LCD, MOT, SPK. 1) Compress windows to FOLDER LOWER. 2) Contract LCD module and CON TO CON. 1) Take care so that do not become semijoint. 11-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 2 Insert SCREW cover. 1) Insert rubber. 1) When assemble, so that do not and produce scratch 1) Take care to be inserted perfectly. to LOWER Observe. 11-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Assemble Lear. 1) Contract screw 4 POINTs. 1) Confirm FOLDER tension. 1) Take care so that damage may not go to SET. 2) Confirm GAP. 11-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 12-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 61 DEBUG(1) KEYOUT(0 ) C122 KEYIO(2) KEYIO(1) FM_SC L FM_SD A CN101 FM_RADIO (OPTION) SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS COS PROPERTY. DO NOT DISCROSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG.
  • Page 62 SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS COS PROPERTY. DO NOT DISCROSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG. VPERM_3.0V VRF_2.85V VCORE_1.25V VSIM_3.0V VANA_2.85V VGPIO_2.8V VMEM_1.8V VCORE_1.25V VRF_2.85V VGPIO_2.8V VMEM_1.8V C201 C206...
  • Page 63 STA R DIGIT0 SHAR P RIGHT KEYOUT(3 ) KEYIO(2) MAIN MI C KEY MAP SAMSUNG PROPRIETARY THIS DOCUMENT CONTAINS CONFIDENTIAL PROPRIETARY INFORMATION THAT IS SAMSUNG ELECTRONICS COS PROPERTY. DO NOT DISCROSE TO OR DUPLICATE FOR OTHERS EXCEPT AS AUTHORIZED BY SAMSUNG.
  • Page 65 China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com 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. 2009. 02. Rev.1.0...