Samsung SGH-S400i Service Manual
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Samsung SGH-S400i Service Manual

Samsung SGH-S400i Service Manual

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SGH-S400i
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  • Page 1: Table Of Contents

    I-mode TELEPHONE SGH-S400i I-mode TELEPHONE CONTENTS Specification Flow Chart of Troubleshooting Exploded View and Parts List MAIN Electrical Parts List PCB Diagrams Block Diagrams...

  • Page 2: Specification

    E D G E 8~ 19(clas s E 2) 2~15(class E2) 2~15(class E2) Sens itivity -102dBm -100dBm -102dBm T DM A Mu x Cell R adius 35Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 3: Gsm Tx Power Class

    16±3dBm 16±3dBm 17±3dBm 14±3dBm 14±3dBm 15±3dBm 12±4dBm 12±4dBm 13±3dBm 10±4dBm 10±4dBm 11±5dBm 8±4dBm 8±4dBm 9±5dBm 6±4dBm 6±4dBm 7±5dBm 4±4dBm 4±4dBm 5±5dBm 2±5dBm 2±5dBm 0±5dBm 0±5dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Flow Chart Of Troubleshooting

    Check the clock signal at pin#3 of OSC101 Freq = 13MHz Check the clock generation circuit Vrms >=300mV (related to OSC101) Vpp >= 800mV Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5 SGH-S400i Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 VCCD_1.8_PSC VCCD_1.6V VBAT U312 L303 2 AVIN PGND C357 R344 MODE/SYNC AGND VOUT TA305 VRF_2.9V R148 R150 C180 OSC101 R120 VCON R123 C140 CLK13M_RF C139 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 7 SGH-S400i Flow Chart of Troubleshooting 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 UCD307 the C328,C329,C332 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 BT_RTS BT_TXD BT_RXD BT_CTS SDS_TXD SDS_RXD C220 C221 KEY_COL(0:4) KEY_COL(0) KEY_COL(1) KEY_COL(2) KEY_COL(3) KEY_COL(4) PSW1_BUF VDD_AC_ON KEY_ROW(0:4) VCAM_EN KEY_ROW(0) KEY_ROW(1) KEY_ROW(2) KEY_ROW(3) P_MODE KEY_ROW(4) SPK_PHONE_EN 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 SIM301 >= Check the UCD307 2.8V ? Is there any signals Check the UCP201 pin#2,#3,#6 of SIM301 ? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 SGH-S400i Flow Chart of Troubleshooting SIM301 VSIM SIM_RST SIM_CLK SIM_IO C317 C318 C319 C320 C321 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Camera Part

    Check the UCP201 Check the U111 Pin #9 ≒ 2.8V, U111 Resolder or Change Pin #10 ≒ 1.8V Check the U300 Pin #12 of SOC101 is 24MHz? SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 SGH-S400i Flow Chart of Troubleshooting 2-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 24 24 FLASH+ NC NC V1.8_CAM V2.8_CAM VBAT U111 VOUT1 10 VOUT2 VCAM_EN 3 EN2 C151 CBYP C152 R134 C127 C130 1112 1314 1516 2-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 L_ADS LCD_CS M_HOLD L_CS_N L_RESET_N C315 VCCD_1.8V A(1) A(2) R312 R365 R313 FLASH_RESET OSC300 M_HOLD C380 HERA_INT CP_WEN CP_OEN TP304 HERA_CS D[0:15] C322 C323 2-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 16: Bluetooth Part

    Pin #10 ≒ 1.8V ? Check U103 Check the UCP201 Pin #16 ≒ 19.2MHz ? Check ANT101 ANT101 Pin #2 is -6 ~ +4dBm ? Resolder or Change 2-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 SGH-S400i Flow Chart of Troubleshooting 2-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 UART_RTS PCM_IN BT_TXD PCM_OUT UART_RX PCM_OUT BT_RXD PCM_SYNC UART_TX PCM_SYNC C169 C170 VDD_1.8V PIO_0 VDD_REG PIO_1 VDD_UART PIO_2 PIO_3 C153 PIO_4_UART_TX2 PIO_5_UART_RTS2 PIO_6_UART_CTS2 PIO_7_UART_RX2 2-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 19: Microphone Part

    Check the DC bias voltage on Mic path. Resolder or change R352, R359, R342, R353, R354, R352 ≒ 2.3V R355, R358, C365, C369 Is microphone OK? Check UCD307 2-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 SGH-S400i Flow Chart of Troubleshooting 2-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 MAIN_MIC_P MICINP MICOUTP R353 C365 R354 C366 MIC+ MIC+ C369 R355 C371 C372 MAIN_MIC_M MICINN MICOUTN MIC300 R358 C376 R359 MIC- VR301 VR302 C379 2-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 22: Speaker Part

    Are there any signal at the Check the U110 and related pin #2, 10 of U110 ? parts Replace the speaker Is speaker working ? 2-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 SGH-S400i Flow Chart of Troubleshooting 2-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 R300 MSPK+ C300 AMP_IN+ L_OUT EAR_R R304 U304 R372 MP3+ AOUTBP SPK_SEL EAR_SEL 3-4IN 1-2IN R307 MSPK- R_OUT AMP_IN- R308 MP3- EAR_L R305 AOUTBN 2-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 2 NO1 COM2 9 SPK_PHONE_OUTP SPK1N R135 COM1 SPK1P 4 IN1 AMP_SHDN AOUTAN R126 5 NC1 GND 6 AOUTAP R127 12 13 C156 C140 C139 2-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 CAM_D(0) CAM_D(1) CAM_D(2) CAM_D(3) CAM_D(4) CAM_D(5) CAM_D(6) CAM_D(7) VCAM_EN HOR_REF VER_REF CAM_RST CAM_SDA CAM_SCL SPK_PHONE_EN AMP_SHDN AMP_IN+ AMP_IN- AOUTAP AOUTAN C176 C125 C175 C174 2-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 SGH-S400i Flow Chart of Troubleshooting VAUDIO_3.3 AMP_SHDN C137 C136 R104 C131 AUDIO_P SPK_PHONE_OUTP C133 R105 AUDIO_N SPK_PHONE_OUTN SPK1P SPK1N C145 C146 2-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 28: Receiver Part

    Pin #2, 10 of U110? R105 Are there any signal at the Check the U110 and related C145, C146 ? parts Replace the speaker Is speaker working ? 2-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 29: Charging Part

    Check BTC103 IFC102 and BTC103 Pin #3 ≥ 3.8V ? Again, Check the IFC102 See the indicator of and Battery Condition charger is red ? 2-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 R138 15 15 CP_TCK R139 16 16 TR_RST 17 17 TA_VEXT C171 F106 BTC103 BP_VF C173 C177 TA101 C159 VR112 ZD105 ZD106 ZD104 ZD103 2-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 31: Lcd Part

    25 of SLC103 ? Is there any signal pin #7 ~ Check the SLC102 23 of SLC102 ? Replace the LCD Module Check the LCD Module 2-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 SGH-S400i Flow Chart of Troubleshooting 2-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 18 18 BLCD_D(9) BLCD_D(10) BLCD_D(11) BLCD_D(12) 22 22 BLCD_D(13) BLCD_D(14) 23 23 BLCD_D(15) 26 26 LED+_10 RESET 27 27 LED-_0 R129 30 30 C112 C113 2-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 Pin #6 ≥ -65dBm ? Resolder or change Check the DUF100 DUF100 Pin #15 ≥ -65dBm ? Check the UPL101 Check the L105 Pin #42 ≥ -65dBm ? 2-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 R114 GSM74945_OUT DCS_OUT DPCS_OUT GND31 GND16 GND32 GND15 C135 C136 GND33 GND14 (0603) (0603) 11 12 13 14 C184 GSM_OUT C137 C138 (0603) (0603) 2-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 Check the Check the PAM102 PAM102 and C184 Pin #15 ≥ 32dBm ? Check the OSC101 Check the OSC101 Pin #3 ≒ 13MHz ? 2-33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Check the DUF100 Resolder or change Pin #13 ≥ -65dBm ? DUF100 Check the Check the UPL101 L104 and C123 Pin #43 ≥ -65dBm ? 2-34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Check the Check the PAM102 PAM102 and R114 Pin #19 ≥ 29dBm ? Check the OSC101 Check the OSC101 Pin #3 ≒ 13MHz ? 2-35 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 39: Exploded View And Parts List

    QKP02 QSP01 QMO01 QKP01 QLC01 QCA01 QME02 QPC01 QMP02 QVK01 QME01 QMP01 QMI01 QMI03 QCR32 QAN02 QFL01 QRF03 QRE01 QVO01 QCR06 QRF01 QIF01 QCR06 QBA01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 GH59-02454A QFL01 　 MEC-SLIDE LOWER GH75-08132A 　 QCR32 SCREW-MACHINE 6001-001700 QRE01 　 MEC-REAR COVER GH75-08136A 　 QRF03 PMO-EAR COVER GH72-25334A 　 QVO01 PMO-VOLUME KEY GH72-25347A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 MPR-TAPE LCD INSULATION GH74-19114A MPR-TAPE SUB GOLD GH74-19115A MPR-TAPE CN ADHESIVE GH74-19116A MPR-TAPE SUB INSULATION GH74-19117A MPR-TAPE MAIN INSULATION GH74-19120A MPR-BOHO VINYL SLIDE UPP GH74-19121A MEC-LOWER GH75-08133A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 3-3. Test Jig (GH80-03307A) 3-3-1. RF Test Cable 3-3-2. Test Cable 3-3-3. Serial Cable (GH39-00397A) (GH39-00369A) 3-3-4. Power Supply Cable 3-3-5. DATA CABLE 3-3-6. TA (GH39-00305A) (GH44-00954A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 43: Main Electrical Parts List

    LED210 0801-002529 U305 IC-CMOS LOGIC 0801-002958 U104 IC-CMOS LOGIC 1001-001261 U110 IC-ANALOG SWITCH 1001-001261 U126 IC-ANALOG SWITCH 1001-001261 U309 IC-ANALOG SWITCH 1001-001306 U304 IC-ANALOG MULTIPLEX SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 VARISTOR 1405-001082 VR107 VARISTOR 1405-001082 VR108 VARISTOR 1405-001082 VR109 VARISTOR 1405-001082 VR109 VARISTOR 1405-001082 VR110 VARISTOR 1405-001082 VR110 VARISTOR 1405-001082 VR111 VARISTOR 1405-001082 VR111 VARISTOR SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 VR310 VARISTOR 1405-001133 VR114 VARISTOR 1405-001133 VR115 VARISTOR 1405-001133 VR117 VARISTOR 1405-001133 VR119 VARISTOR 1405-001133 VR120 VARISTOR 1405-001138 VR123 VARISTOR 2007-000137 R-CHIP 2007-000138 R126 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 R-CHIP 2007-000157 R315 R-CHIP 2007-000157 R320 R-CHIP 2007-000157 R337 R-CHIP 2007-000157 R344 R-CHIP 2007-000157 R361 R-CHIP 2007-000157 R362 R-CHIP 2007-000159 R101 R-CHIP 2007-000161 R301 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 R-CHIP 2007-000171 R300 R-CHIP 2007-000171 R302 R-CHIP 2007-000171 R304 R-CHIP 2007-000171 R307 R-CHIP 2007-000171 R308 R-CHIP 2007-000171 R313 R-CHIP 2007-000171 R348 R-CHIP 2007-000171 R371 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 R-CHIP 2007-002797 R125 R-CHIP 2007-002965 R103 R-CHIP 2007-002970 R215 R-CHIP 2007-002970 R216 R-CHIP 2007-002970 R217 R-CHIP 2007-002970 R218 R-CHIP 2007-003025 R330 R-CHIP 2007-003025 R332 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 R-CHIP 2007-008419 R134 R-CHIP 2007-008419 R135 R-CHIP 2007-008419 R136 R-CHIP 2007-008419 R137 R-CHIP 2007-008419 R138 R-CHIP 2007-008419 R139 R-CHIP 2007-008542 R367 R-CHIP 2007-009084 R329 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 C-CER,CHIP 2203-000278 C323 C-CER,CHIP 2203-000311 C129 C-CER,CHIP 2203-000359 C371 C-CER,CHIP 2203-000359 C379 C-CER,CHIP 2203-000386 C101 C-CER,CHIP 2203-000386 C220 C-CER,CHIP 2203-000386 C221 C-CER,CHIP 2203-000438 C164 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 C-CER,CHIP 2203-001412 C145 C-CER,CHIP 2203-001437 C122 C-CER,CHIP 2203-002487 C346 C-CER,CHIP 2203-002668 C123 C-CER,CHIP 2203-002709 C156 C-CER,CHIP 2203-002709 C341 C-CER,CHIP 2203-002709 C344 C-CER,CHIP 2203-002709 C380 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 2203-006048 C173 C-CER,CHIP 2203-006048 C205 C-CER,CHIP 2203-006048 C206 C-CER,CHIP 2203-006048 C207 C-CER,CHIP 2203-006048 C209 C-CER,CHIP 2203-006048 C213 C-CER,CHIP 2203-006048 C216 C-CER,CHIP 2203-006048 C217 C-CER,CHIP 4-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 2203-006194 C311 C-CER,CHIP 2203-006257 C351 C-CER,CHIP 2203-006257 C386 C-CER,CHIP 2203-006260 C136 C-CER,CHIP 2203-006260 C201 C-CER,CHIP 2203-006260 C202 C-CER,CHIP 2203-006260 C348 C-CER,CHIP 2203-006260 C349 C-CER,CHIP 4-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 2203-006562 C327 C-CER,CHIP 2203-006562 C328 C-CER,CHIP 2203-006562 C329 C-CER,CHIP 2203-006562 C331 C-CER,CHIP 2203-006562 C333 C-CER,CHIP 2203-006562 C336 C-CER,CHIP 2203-006562 C338 C-CER,CHIP 2203-006562 C343 C-CER,CHIP 4-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 2203-006838 C306 C-CER,CHIP 2203-006838 C385 C-CER,CHIP 2203-006838 C394 C-CER,CHIP 2203-006838 C396 C-CER,CHIP 2203-006847 C131 C-CER,CHIP 2203-006847 C132 C-CER,CHIP 2404-001225 TA307 C-TA,CHIP 2404-001225 TA308 C-TA,CHIP 4-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 2703-002710 L103 INDUCTOR-SMD 2703-002710 L104 INDUCTOR-SMD 2703-002734 L302 INDUCTOR-SMD 2703-002734 L303 INDUCTOR-SMD 2703-002767 L103 INDUCTOR-SMD 2801-004225 OSC300 CRYSTAL-SMD 2801-004466 OSC200 CRYSTAL-SMD 2809-001295 OSC101 OSCILLATOR-VCTCXO 4-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 HEADER-BOARD TO BOARD 3711-005781 BTC103 CONNECTOR-BATTERY 3722-002181 EAR313 JACK-EAR PHONE 4202-001065 ANT101 ANTENNA-CHIP 4302-001158 BAT300 BATTERY-LI(2ND) 4709-001374 U103 BLUETOOTH MODULE GH09-00038A UCP201 IC MICOM 4-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 58: Pcb Diagrams

    TP302 TP303 TP301 U310 TP204 TP207 TP205 TP203 UME202 U311 TP206 SIM301 ANT101 VR112 TA101 BTC103 ZD106 ZD105 U305 ZD103 TA306 ZD104 VR301 IFC102 MIC300 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 SGH-S400i PCB Diagrams TP210 TP209 VR202 SLC101 VR205 VR203 F104 F105 F103 F102 F101 VR115 VR118 VR119 VR116 TP201 U304 U314 VR207 VR206 VR310 VR210 SHARP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 SGH-S400i PCB Diagrams 5-2. LCD VR117VR119 VR101 TP104 TP105 VR114 VR120 F106 F105 VR103 VR100 D103 TP103 PAM127 TP100 TP102 TP101 U100 SLC103 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 61 SGH-S400i PCB Diagrams LED105 LED104 LED101 LED103 DOWN SEND SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 62: Block Diagrams

    6. SGH-S400i Block Diagrams 6-1. RF Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 63: Baseband Block Diagram

    SGH-S400i Block Diagrams 6-2. Baseband Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 64: Power Block Diagram

    SGH-S400i Block Diagrams 6-3. Power Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 65 ⓒ 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. Code No.: GH68-08068A 2006. 01. Rev.1.0...

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